Important safety information
Chapter 1. Product overview
Chapter 2. Using your computer
Chapter 3. Enhancing your computer
- Finding ThinkPad options
- ThinkPad Basic Docking Station, ThinkPad Pro Docking Station, and ThinkPad Ultra Docking Station
Chapter 4. Accessibility, ergonomic, and maintenance information
Chapter 5. Security
Chapter 6. Advanced configuration
Chapter 7. Troubleshooting computer problems
Chapter 8. Recovery information
Chapter 9. Replacing devices
Chapter 10. Getting support
Appendix A. Supplemental information about the Ubuntu operating system
Appendix B. Regulatory information
Appendix C. WEEE and recycling statements of countries and regions
Appendix D. Restriction of Hazardous Substances (RoHS) Directive of countries and regions
Appendix E. ENERGY STAR model information
Appendix F. Notices
Appendix G. Trademarks

Lenovo T480s User Manual

Displayed below is the user manual for T480s by Lenovo which is a product in the Notebooks category. This manual has pages.

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T480s User Guide

Note: Before using this information and the product it supports, ensure that you read and understand the

following:

• Safety and Warranty Guide

• Setup Guide

• “Important safety information” on page v

Lenovo makes constant improvement on the documentation of your computer, including this User Guide. To

get all the latest documents, go to:

https://support.lenovo.com

Depending on the version of operating systems, some user interface instructions might not be applicable to

your computer.

Fourth Edition (September 2018)

LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services

Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-

35F-05925.

Contents

Important safety information . . . . . . v

Read this first. . . . . . . . . . . . . . . . . v

Important information about using your computer . . v

Conditions that require immediate action . . . . . . vii

Service and upgrades . . . . . . . . . . . . viii

Power cords and power adapters . . . . . . . . . ix

Extension cords and related devices. . . . . . . . ix

Plugs and outlets . . . . . . . . . . . . . . . x

Power supply statement . . . . . . . . . . . . x

External devices . . . . . . . . . . . . . . . xi

General battery notice . . . . . . . . . . . . . xi

Notice for built-in rechargeable battery. . . . . . . xi

Notice for non-rechargeable coin-cell battery . . . . xii

Heat and product ventilation . . . . . . . . . . xiii

Electrical current safety information . . . . . . . xiv

Liquid crystal display (LCD) notice . . . . . . . . xv

Using headphones or earphones . . . . . . . . . xv

Choking hazard notice . . . . . . . . . . . . . xv

Plastic bag notice . . . . . . . . . . . . . . . xv

Glass parts notice . . . . . . . . . . . . . . xvi

Chapter 1. Product overview . . . . . . 1

Computer controls, connectors, and indicators . . . 1

Front view . . . . . . . . . . . . . . . . 1

Left-side view. . . . . . . . . . . . . . . 3

Right-side view . . . . . . . . . . . . . . 5

Rear view . . . . . . . . . . . . . . . . 6

Bottom view . . . . . . . . . . . . . . . 6

Status indicators . . . . . . . . . . . . . 7

Important product information . . . . . . . . . . 8

Machine type and model information. . . . . . 8

FCC ID and IC Certification information . . . . . 9

Labels for the Windows operating systems . . 10

Computer features. . . . . . . . . . . . . . 11

Computer specifications . . . . . . . . . . . 12

Operating environment . . . . . . . . . . . . 13

Lenovo programs . . . . . . . . . . . . . . 14

Accessing Lenovo programs . . . . . . . . 14

An introduction to Lenovo programs . . . . . 14

Chapter 2. Using your computer . . . 15

Registering your computer . . . . . . . . . . 15

Frequently asked questions . . . . . . . . . . 15

Using the multi-touch screen . . . . . . . . . 16

Using the Privacy Guard feature . . . . . . . . 18

Using the special keys . . . . . . . . . . . . 19

Using the ThinkPad pointing device . . . . . . . 21

ThinkPad pointing device overview . . . . . 21

Using the TrackPoint pointing device. . . . . 21

Using the trackpad. . . . . . . . . . . . 22

Using the trackpad touch gestures . . . . . 23

Customizing the ThinkPad pointing device . . 24

Replacing the cap on the pointing stick . . . . 24

Power management . . . . . . . . . . . . . 25

Using the ac power adapter . . . . . . . . 25

Using the battery . . . . . . . . . . . . 25

Managing the battery power . . . . . . . . 27

Power-saving modes . . . . . . . . . . . 27

Cabled Ethernet connections . . . . . . . . . 27

Wireless connections . . . . . . . . . . . . 28

Using the wireless-LAN connection . . . . . 28

Using the wireless-WAN connection . . . . . 28

Using the Bluetooth connection. . . . . . . 29

Using the NFC devices . . . . . . . . . . 29

Using the Airplane mode . . . . . . . . . 31

Using audio features . . . . . . . . . . . . . 31

Using the cameras. . . . . . . . . . . . . . 32

Using an SD card or a smart card . . . . . . . . 33

Using an external display . . . . . . . . . . . 35

Traveling with your computer . . . . . . . . . 37

Chapter 3. Enhancing your

computer . . . . . . . . . . . . . . . . 39

Finding ThinkPad options . . . . . . . . . . . 39

ThinkPad Basic Docking Station, ThinkPad Pro

Docking Station, and ThinkPad Ultra Docking

Station . . . . . . . . . . . . . . . . . . 39

Locating controls, connectors, and

indicators . . . . . . . . . . . . . . . 39

Attaching your computer to a docking

station . . . . . . . . . . . . . . . . 41

Detaching your computer from a docking

station . . . . . . . . . . . . . . . . 43

Guidelines on connecting multiple external

displays . . . . . . . . . . . . . . . . 44

Chapter 4. Accessibility, ergonomic,

and maintenance information . . . . . 47

Accessibility information . . . . . . . . . . . 47

Ergonomic information . . . . . . . . . . . . 49

Cleaning and maintenance . . . . . . . . . . 50

Chapter 5. Security . . . . . . . . . . 53

Using passwords . . . . . . . . . . . . . . 53

Passwords introduction . . . . . . . . . . 53

Setting, changing, or removing a password . . 54

Hard disk security . . . . . . . . . . . . . . 55

Setting the security chip . . . . . . . . . . . 55

Using the fingerprint reader . . . . . . . . . . 56

Deleting data from your storage drive . . . . . . 58

Using firewalls . . . . . . . . . . . . . . . 58

Protecting data against viruses . . . . . . . . . 59

Chapter 6. Advanced

configuration . . . . . . . . . . . . . . 61

Installing a Windows 10 operating system . . . . 61

Installing device drivers . . . . . . . . . . . . 62

Using the ThinkPad Setup program . . . . . . . 63

Configuring ThinkPad Setup . . . . . . . . 63

Changing the startup sequence . . . . . . . 63

Updating the UEFI BIOS. . . . . . . . . . 64

BIOS menu. . . . . . . . . . . . . . . 64

Using system management . . . . . . . . . . 75

Chapter 7. Troubleshooting

computer problems . . . . . . . . . . 79

General tips for preventing problems . . . . . . 79

Diagnosing problems . . . . . . . . . . . . 79

Troubleshooting . . . . . . . . . . . . . . 80

Computer stops responding . . . . . . . . 80

Error messages . . . . . . . . . . . . . 80

Beep errors. . . . . . . . . . . . . . . 82

Memory module problems . . . . . . . . . 83

Ethernet problems . . . . . . . . . . . . 83

Wireless-LAN problem . . . . . . . . . . 84

Wireless-WAN problem . . . . . . . . . . 84

Bluetooth problem . . . . . . . . . . . . 85

ThinkPad pointing device problems . . . . . 85

Keyboard problems . . . . . . . . . . . 85

Computer screen problems . . . . . . . . 86

External monitor problems . . . . . . . . . 88

Audio problems . . . . . . . . . . . . . 89

Fingerprint reader problems . . . . . . . . 90

Battery problems . . . . . . . . . . . . 90

ac power adapter problem. . . . . . . . . 91

Power problems. . . . . . . . . . . . . 91

Power button problem . . . . . . . . . . 92

Boot problems . . . . . . . . . . . . . 92

Sleep and hibernation problems . . . . . . 92

Solid-state drive problem . . . . . . . . . 93

Software problem . . . . . . . . . . . . 93

USB problem . . . . . . . . . . . . . . 94

Docking station problem . . . . . . . . . 94

Chapter 8. Recovery information . . . 95

Resetting your computer . . . . . . . . . . . 95

Using advanced startup options . . . . . . . . 95

Recovering your operating system if Windows 10

fails to start . . . . . . . . . . . . . . . . 95

Creating and using a recovery USB drive . . . . . 96

Chapter 9. Replacing devices . . . . . 97

Customer Replaceable Units. . . . . . . . . . 97

Static electricity prevention . . . . . . . . . . 97

Disabling the built-in battery . . . . . . . . . . 98

Replacing the nano-SIM card . . . . . . . . . 98

Replacing the base cover assembly . . . . . . . 99

Replacing the wireless-WAN card. . . . . . . . 101

Replacing a replaceable memory module . . . . . 102

Replacing the M.2 solid-state drive . . . . . . . 104

Replacing the keyboard. . . . . . . . . . . . 105

Chapter 10. Getting support. . . . . . 111

Before you contact Lenovo . . . . . . . . . . 111

Getting help and service . . . . . . . . . . . 111

Lenovo Support Web site . . . . . . . . . 112

Calling Lenovo . . . . . . . . . . . . . 112

Purchasing additional services . . . . . . . . . 113

Appendix A. Supplemental

information about the Ubuntu operating

system . . . . . . . . . . . . . . . . . 115

Appendix B. Regulatory

information . . . . . . . . . . . . . . . 117

Certification-related information . . . . . . . . 117

Wireless-related information . . . . . . . . . . 117

Wireless interoperability. . . . . . . . . . 117

Usage environment and your health . . . . . 117

Locating the UltraConnect wireless

antennas. . . . . . . . . . . . . . . . 118

Wireless-radio compliance information . . . . 118

Locating wireless regulatory notices . . . . . 118

TCO certification . . . . . . . . . . . . . . 119

Export classification notice . . . . . . . . . . 119

Electromagnetic emission notices. . . . . . . . 119

Federal Communications Commission (FCC)

Supplier’s Declaration of Conformity . . . . . 119

Industry Canada Class B emission

compliance statement . . . . . . . . . . 120

European Union conformity . . . . . . . . 120

German Class B compliance statement. . . . 120

Japan VCCI Class B compliance

statement . . . . . . . . . . . . . . . 121

Japan compliance statement for products

which connect to the power mains with rated

current less than or equal to 20 A per

phase . . . . . . . . . . . . . . . . . 121

Japan notice for ac power cord . . . . . . . 121

ii T480s User Guide

Lenovo product service information for

Taiwan . . . . . . . . . . . . . . . . 121

Taiwan precautionary vision statement. . . . . . 121

Eurasian compliance mark . . . . . . . . . . 121

Brazil audio notice . . . . . . . . . . . . . . 121

Appendix C. WEEE and recycling

statements of countries and

regions . . . . . . . . . . . . . . . . . 123

General recycling information . . . . . . . . . 123

Important WEEE information . . . . . . . . . . 123

Japan recycling statements . . . . . . . . . . 124

Recycling information for Brazil. . . . . . . . . 124

Battery recycling information for the European

Union . . . . . . . . . . . . . . . . . . . 125

Battery recycling information for Taiwan . . . . . 126

Battery recycling information for the United States

and Canada . . . . . . . . . . . . . . . . 126

Recycling information for China . . . . . . . . 126

Appendix D. Restriction of

Hazardous Substances (RoHS) Directive

of countries and regions . . . . . . . . 127

Appendix E. ENERGY STAR model

information . . . . . . . . . . . . . . . 131

Appendix F. Notices . . . . . . . . . . 133

Appendix G. Trademarks . . . . . . . 135

iv T480s User Guide

Important safety information

Note: Read the important safety information first.

Read this first

This information can help you safely use your notebook computer. Follow and retain all information included

with your computer. The information in this document does not alter the terms of your purchase agreement

or the Limited Warranty. For more information, see "Warranty Information" in the Safety and Warranty Guide

that comes with your computer.

Customer safety is important. Our products are developed to be safe and effective. However, personal

computers are electronic devices. Power cords, power adapters, and other features can create potential

safety risks that can result in physical injury or property damage, especially if misused. To reduce these risks,

follow the instructions included with your product, observe all warnings on the product and in the operating

instructions, and review the information included in this document carefully. By carefully following the

information contained in this document and provided with your product, you can help protect yourself from

hazards and create a safer computer work environment.

Note: This information includes references to power adapters and batteries. In addition to notebook

computers, some products (such as speakers and monitors) ship with external power adapters. If you have

such a product, this information applies to your product. In addition, computer products contain a coin-sized

internal battery that provides power to the system clock even when the computer is unplugged, so the

battery safety information applies to all computer products.

Important information about using your computer

Ensure that you follow the important tips given here to get the most use and enjoyment out of your computer.

Failure to do so might lead to discomfort or injury, or cause the computer to fail.

Protect yourself from the heat that your computer generates.

When your computer is turned on or the battery is charging, the base, the palm

rest, and some other parts may become hot. The temperature they reach

depends on the amount of system activity and the level of charge in the

battery.

Extended contact with your body, even through clothing, could cause

discomfort or even a skin burn.

• Avoid keeping your hands, your lap, or any other part of your body in

contact with a hot section of the computer for any extended time.

• Periodically take hands from using the keyboard by lifting your hands from

the palm rest.

Protect yourself from the heat generated by the ac power adapter.

When the ac power adapter is connected to an electrical outlet and your

computer, it generates heat.

Extended contact with your body, even through clothing, may cause a skin

burn.

• Do not place the ac power adapter in contact with any part of your body

while it is in use.

• Never use it to warm your body.

• Do not wrap the cords around the ac power adapter while in use.

Prevent your computer from getting wet.

To avoid spills and the danger of electrical shock, keep liquids away from your

computer.

Protect the cables from being damaged.

Applying strong force to cables may damage or break them.

Route communication lines, or the cables of an ac power adapter, a mouse, a

keyboard, a printer, or any other electronic device, so that they cannot be

walked on, tripped over, pinched by your computer or other objects, or in any

way subject to treatment that could interfere with the operation of your

computer.

Protect your computer and data when moving it.

Before moving a computer equipped with a hard disk drive, do one of the

following:

• Turn it off.

• Put it in sleep mode.

• Put it in hibernation mode.

This helps to prevent damage to the computer, and possible loss of data.

vi T480s User Guide

Handle your computer gently.

Do not drop, bump, scratch, twist, hit, vibrate, push, or place heavy objects on

your computer, display, or external devices.

Carry your computer carefully.

• Use a quality carrying case that provides adequate cushioning and protection.

• Do not pack your computer in a tightly packed suitcase or bag.

• Before putting your computer in a carrying case, make sure that it is off, in sleep

mode, or in hibernation mode. Do not put a computer in a carrying case while it is

turned on.

Conditions that require immediate action

Products can become damaged due to misuse or neglect. Some product damage is serious enough

that the product should not be used again until it has been inspected and, if necessary, repaired by an

authorized servicer.

As with any electronic device, pay close attention to the product when it is turned on. On very rare

occasions, you might notice an odor or see a puff of smoke or sparks vent from your product. Or you

might hear sounds like popping, cracking, or hissing. These conditions might merely mean that an

internal electronic component has failed in a safe and controlled manner. Or, they might indicate a

potential safety issue. However, do not take risks or attempt to diagnose the situation yourself.

Contact the Customer Support Center for further guidance. For a list of Service and Support phone

numbers, see the following Web site:

https://pcsupport.lenovo.com/supportphonelist

Frequently inspect your computer and its components for damage or wear or signs of danger. If you

have any question about the condition of a component, do not use the product. Contact the Customer

Support Center or the product manufacturer for instructions on how to inspect the product and have it

repaired, if necessary.

In the unlikely event that you notice any of the following conditions, or if you have any safety concerns

with your product, stop using the product and unplug it from the power source and

telecommunication lines until you can speak to the Customer Support Center for further guidance.

• Power cords, plugs, power adapters, extension cords, surge protectors, or power supplies that are

cracked, broken, or damaged.

• Signs of overheating, smoke, sparks, or fire.

• Damage to a battery (such as cracks, dents, or creases), discharge from a battery, or a buildup of foreign

substances on the battery.

• A cracking, hissing, or popping sound, or strong odor that comes from the product.

• Signs that liquid has been spilled or an object has fallen onto the computer product, the power cord, or

power adapter.

• The computer product, power cord, or power adapter has been exposed to water.

• The product has been dropped or damaged in any way.

• The product does not operate normally when you follow the operating instructions.

Note: If you notice these conditions with a product (such as an extension cord) that is not manufactured for

or by Lenovo®, stop using that product until you can contact the product manufacturer for further

instructions, or until you get a suitable replacement.

Service and upgrades

Do not attempt to service a product yourself unless instructed to do so by the Customer Support Center or

your documentation. Only use a Service Provider who is approved to repair your particular product.

Note: Some computer parts can be upgraded or replaced by the customer. Upgrades typically are referred

to as options. Replacement parts approved for customer installation are referred to as Customer

Replaceable Units, or CRUs. Lenovo provides documentation with instructions when it is appropriate for

customers to install options or replace CRUs. You must closely follow all instructions when installing or

replacing parts. The Off state of a power indicator does not necessarily mean that voltage levels inside a

product are zero. Before you remove the covers from a product equipped with a power cord, always make

sure that the power is turned off and that the product is unplugged from any power source. If you have any

questions or concerns, contact the Customer Support Center.

Although there are no moving parts in your computer after the power cord has been disconnected, the

following warnings are required for your safety.

CAUTION:

Hazardous moving parts. Keep fingers and other body parts away.

CAUTION:

Before you open the computer cover, turn off the computer and wait several minutes until the

computer is cool.

viii T480s User Guide

Power cords and power adapters

DANGER

Use only the power cords and power adapters supplied by the product manufacturer.

The power cords shall be safety approved. For Germany, it shall be H03VV-F, 3G, 0.75 mm2, or

better. For other countries, the suitable types shall be used accordingly.

Never wrap a power cord around a power adapter or other object. Doing so can stress the cord in

ways that can cause the cord to fray, crack, or crimp. This can present a safety hazard.

Always route power cords so that they will not be walked on, tripped over, or pinched by objects.

Protect power cords and power adapters from liquids. For instance, do not leave your power cord

or power adapter near sinks, tubs, toilets, or on floors that are cleaned with liquid cleansers. Liquids

can cause a short circuit, particularly if the power cord or power adapter has been stressed by

misuse. Liquids also can cause gradual corrosion of power cord terminals and/or the connector

terminals on a power adapter, which can eventually result in overheating.

Ensure that all power cord connectors are securely and completely plugged into receptacles.

Do not use any power adapter that shows corrosion at the ac input pins or shows signs of

overheating (such as deformed plastic) at the ac input pins or anywhere on the power adapter.

Do not use any power cords where the electrical contacts on either end show signs of corrosion or

overheating or where the power cord appears to have been damaged in any way.

To prevent possible overheating, do not cover the power adapter with clothing or other objects

when the power adapter is plugged into an electrical outlet.

Extension cords and related devices

Ensure that extension cords, surge protectors, uninterruptible power supplies, and power strips that you use

are rated to handle the electrical requirements of the product. Never overload these devices. If power strips

are used, the load should not exceed the power strip input rating. Consult an electrician for more information

if you have questions about power loads, power requirements, and input ratings.

Plugs and outlets

DANGER

If a receptacle (power outlet) that you intend to use with your computer equipment appears to be

damaged or corroded, do not use the outlet until it is replaced by a qualified electrician.

Do not bend or modify the plug. If the plug is damaged, contact the manufacturer to obtain a

replacement.

Do not share an electrical outlet with other home or commercial appliances that draw large

amounts of electricity; otherwise, unstable voltage might damage your computer, data, or attached

devices.

Some products are equipped with a three-pronged plug. This plug fits only into a grounded

electrical outlet. This is a safety feature. Do not defeat this safety feature by trying to insert it into a

non-grounded outlet. If you cannot insert the plug into the outlet, contact an electrician for an

approved outlet adapter or to replace the outlet with one that enables this safety feature. Never

overload an electrical outlet. The overall system load should not exceed 80 percent of the branch

circuit rating. Consult an electrician for more information if you have questions about power loads

and branch circuit ratings.

Be sure that the power outlet you are using is properly wired, easily accessible, and located close to

the equipment. Do not fully extend power cords in a way that will stress the cords.

Be sure that the power outlet provides the correct voltage and current for the product you are

installing.

Carefully connect and disconnect the equipment from the electrical outlet.

Power supply statement

DANGER

Never remove the cover on a power supply or any part that has the following label attached.

Hazardous voltage, current, and energy levels are present inside any component that has this label

attached. There are no serviceable parts inside these components. If you suspect a problem with

one of these parts, contact a service technician.

xT480s User Guide

External devices

CAUTION:

Do not connect or disconnect any external device cables other than Universal Serial Bus (USB) and

1394 cables while the computer power is on; otherwise, you might damage your computer. To avoid

possible damage to attached devices, wait at least five seconds after the computer is shut down to

disconnect external devices.

General battery notice

DANGER

Batteries supplied by Lenovo for use with your product have been tested for compatibility and

should only be replaced with approved parts. A battery other than the one specified by Lenovo, or a

disassembled or modified battery is not covered by the warranty.

Battery abuse or mishandling can cause overheat, liquid leakage, or an explosion. To avoid possible

injury, do the following:

• Do not open, dissemble, or service any battery.

• Do not crush or puncture the battery.

• Do not short-circuit the battery, or expose it to water or other liquids.

• Keep the battery away from children.

• Keep the battery away from fire.

Stop using the battery if it is damaged, or if you notice any discharge or the buildup of foreign

materials on the battery leads.

Store the rechargeable batteries or products containing the rechargeable batteries at room

temperature, charged to approximately 30 to 50% of capacity. We recommend that the batteries be

charged about once per year to prevent overdischarge.

Do not put the battery in trash that is disposed of in landfills. When disposing of the battery, comply

with local ordinances or regulations.

Notice for built-in rechargeable battery

DANGER

Do not attempt to remove or replace the built-in rechargeable battery. Replacement of the battery

must be done by a Lenovo-authorized repair facility or technician.

Only recharge the battery strictly according to instructions included in the product documentation.

The Lenovo-authorized repair facilities or technicians recycle Lenovo batteries according to local

laws and regulations.

Notice for non-rechargeable coin-cell battery

DANGER

Do not attempt to replace the non-rechargeable coin-cell battery. Replacement of the battery must

be done by a Lenovo-authorized repair facility or technician.

The Lenovo-authorized repair facilities or technicians recycle Lenovo batteries according to local

laws and regulations.

The following statement applies to users in the state of California, U.S.A.

California Perchlorate Information:

Products containing manganese dioxide lithium coin-cell batteries may contain perchlorate.

Perchlorate Material - special handling may apply, See https://www.dtsc.ca.gov/hazardouswaste/

perchlorate/

xii T480s User Guide

Heat and product ventilation

DANGER

Computers, ac power adapters, and many accessories can generate heat when turned on and when

batteries are charging. Notebook computers can generate a significant amount of heat due to their

compact size. Always follow these basic precautions:

• When your computer is turned on or the battery is charging, the base, the palm rest, and some

other parts may become hot. Avoid keeping your hands, your lap, or any other part of your body

in contact with a hot section of the computer for any extended length of time. When you use the

keyboard, avoid keeping your palms on the palm rest for a prolonged period of time. Your

computer generates some heat during normal operation. The amount of heat depends on the

amount of system activity and the battery charge level. Extended contact with your body, even

through clothing, could cause discomfort or even a skin burn. Periodically take breaks from using

the keyboard by lifting your hands from the palm rest; and be careful not to use the keyboard for

any extended length of time.

• Do not operate your computer or charge the battery near flammable materials or in explosive

environments.

• Ventilation slots, fans and/or heat sinks are provided with the product for safety, comfort, and

reliable operation. These features might inadvertently become blocked by placing the product on

a bed, sofa, carpet, or other flexible surface. Never block, cover, or disable these features.

• When the ac power adapter is connected to an electrical outlet and your computer, it generates

heat. Do not place the adapter in contact with any part of your body while using it. Never use the

ac power adapter to warm your body. Extended contact with your body, even through clothing,

may cause a skin burn.

For your safety, always follow these basic precautions with your computer:

• Keep the cover closed whenever the computer is plugged in.

• Regularly inspect the outside of the computer for dust accumulation.

• Remove dust from vents and any perforations in the bezel. More frequent cleanings might be

required for computers in dusty or high-traffic areas.

• Do not restrict or block any ventilation openings.

• Do not operate your computer inside furniture, as this might increase the risk of overheating.

• Airflow temperatures into the computer should not exceed 35°C (95°F).

Electrical current safety information

DANGER

Electric current from power, telephone, and communication cables is hazardous.

To avoid a shock hazard:

• Do not use your computer during a lightning storm.

• Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration

of this product during an electrical storm.

• Connect all power cords to a properly wired and grounded electrical outlet.

• Connect to properly wired outlets any equipment that will be attached to this product.

• Whenever possible, use one hand only to connect or disconnect signal cables.

• Never turn on any equipment when there is evidence of fire, water, or structural damage.

• Disconnect the attached power cords, battery, and all the cables before you open the device

covers, unless instructed otherwise in the installation and configuration procedures.

• Do not use your computer until all internal parts enclosures are fastened into place. Never use

the computer when internal parts and circuits are exposed.

DANGER

Connect and disconnect cables as described in the following procedures when installing, moving,

or opening covers on this product or attached devices.

To connect:

1. Turn everything OFF.

2. First, attach all cables to devices.

3. Attach signal cables to connectors.

4. Attach power cords to outlets.

5. Turn devices ON.

To disconnect:

1. Turn everything OFF.

2. First, remove power cords from outlets.

3. Remove signal cables from connectors.

4. Remove all cables from devices.

The power cord must be disconnected from the wall outlet or receptacle before installing all other electrical

cables connected to the computer.

The power cord may be reconnected to the wall outlet or receptacle only after all other electrical cables have

been connected to the computer.

DANGER

During electrical storms, do not perform any replacement and do not connect the telephone cable

to or disconnect it from the telephone outlet on the wall.

xiv T480s User Guide

Liquid crystal display (LCD) notice

CAUTION:

The liquid crystal display (LCD) is made of glass, and rough handling or dropping the computer can

cause the LCD to break. If the LCD breaks and the internal fluid gets into your eyes or on your hands,

immediately wash the affected areas with water for at least 15 minutes; if any symptoms are present

after washing, get medical care.

Note: For products with mercury-containing fluorescent lamps (for example, non-LED), the fluorescent lamp

in the liquid crystal display (LCD) contains mercury; dispose of according to local, state, or federal laws.

Using headphones or earphones

CAUTION:

Excessive sound pressure from earphones and headphones can cause hearing loss. Adjustment of

the equalizer to maximum increases the earphone and headphone output voltage and the sound

pressure level. Therefore, to protect your hearing, adjust the equalizer to an appropriate level.

Excessive use of headphones or earphones for a long period of time at high volume can be dangerous if the

output of the headphone or earphone connectors do not comply with specifications of EN 50332-2. The

headphone output connector of your computer complies with EN 50332-2 Sub clause 7. This specification

limits the computer’s maximum wide band true RMS output voltage to 150 mV. To help protect against

hearing loss, ensure that the headphones or earphones you use also comply with EN 50332-2 (Clause 7

limits) for a wide band characteristic voltage of 75 mV. Using headphones that do not comply with EN 50332-

2 can be dangerous due to excessive sound pressure levels.

If your Lenovo computer came with headphones or earphones in the package, as a set, the combination of

the headphones or earphones and the computer already complies with the specifications of EN 50332-1. If

different headphones or earphones are used, ensure that they comply with EN 50332-1 (Clause 6.5

Limitation Values). Using headphones that do not comply with EN 50332-1 can be dangerous due to

excessive sound pressure levels.

Choking hazard notice

CHOKING HAZARD – Product contains small parts.

Keep away from children under three years.

Plastic bag notice

DANGER

Plastic bags can be dangerous. Keep plastic bags away from babies and children to avoid danger of

suffocation.

Glass parts notice

CAUTION:

Some parts of your product may be made of glass. This glass could break if the product is dropped on

a hard surface or receives a substantial impact. If glass breaks, do not touch or attempt to remove it.

Stop using your product until the glass is replaced by trained service personnel.

xvi T480s User Guide

Chapter 1. Product overview

This chapter provides basic information to help you get familiar with your computer.

Computer controls, connectors, and indicators

This section introduces hardware features of the computer.

Front view

1 Infrared camera (available on some models) 2 Conventional camera (available on models with the

infrared camera)

3 Microphones 4 Conventional camera with ThinkShutter (lens cover)

(available on some models)

5 Power button 6 Fingerprint reader (available on some models)

7 NFC label for silver model (available on some models) 8 TrackPoint® buttons

9 Trackpad 10 NFC mark for black model (available on some models)

11 TrackPoint pointing stick 12 Screen (multi-touch screen on some models)

1 Infrared camera (available on some models)

The infrared camera provides a personal and secure way for you to sign in to your computer with face

authentication. After setting the infrared camera for face authentication, you can unlock your computer by

scanning your face instead of using a password. For more information, see “Using the cameras” on page 32.

2 Conventional camera (available on models with the infrared camera)

The camera enables you to take pictures or hold a video conference. For more information, see “Using the

cameras” on page 32.

3 Microphones

The microphones capture sound and voice when used with a program capable of handling audio.

4 Conventional camera with ThinkShutter (available on some models)

The camera enables you to take pictures or hold a video conference. You can use the ThinkShutter to cover

(slide to the right) or unveil (slide to the left) the camera lens. For more information, see “Using the cameras”

on page 32.

5 Power button

Press the power button to turn on the computer or put the computer into sleep mode.

To turn off the computer, open the Start menu and click Power, and then click Shut down.

If your computer is unresponsive, you can turn off the computer by pressing and holding the power button

for four or more seconds. If the computer cannot be turned off, see “Computer stops responding” on page

80 for more information.

You also can define what the power button does. For example, by pressing the power button, you can turn

off the computer or put the computer into sleep or hibernation mode. To change what the power button

does, do the following:

1. Go to Control Panel, and then change the view of Control Panel from Category to Large icons or Small

icons.

2. Click Power Options ➙ Choose what the power buttons do.

3. Follow the instructions on the screen.

6 Fingerprint reader (available on some models)

Fingerprint authentication provides simple and secure user access by associating your fingerprint with a

password. For more information, see “Using the fingerprint reader” on page 56.

7 NFC label for silver model (available on some models)

Near field communication (NFC) is a high-frequency and short-range wireless communication technology. By

using NFC, you can establish radio communications between your computer and another NFC-enabled

device over a few centimeters or inches. For more information, see “Using the NFC devices” on page 29.

ThinkPad pointing device

8 TrackPoint buttons

2T480s User Guide

9 TrackPoint pointing stick

11 Trackpad

Your computer is equipped with the Lenovo-unique ThinkPad® pointing device. For more information, see

“Using the ThinkPad pointing device” on page 21.

10 NFC mark for black model (available on some models)

Near field communication (NFC) is a high-frequency and short-range wireless communication technology. By

using NFC, you can establish radio communications between your computer and another NFC-enabled

device over a few centimeters or inches. For more information, see “Using the NFC devices” on page 29.

12 Screen (multi-touch screen on some models)

The multi-touch screen enables you to use your computer with simple touch gestures. For more information,

see “Using the multi-touch screen” on page 16.

Left-side view

1 USB-C™ connector 2 USB-C™ connector (Thunderbolt™ 3 compatible)

3 Docking-station connector 4 Ethernet connector

5 Always On USB 3.1 connector Gen 1 6 HDMI™ connector

7 Audio connector 8 SD-card slot

1 USB-C connector

The USB-C connector on your computer supports the USB Type-C™ standard. With an appropriate USB-C

cable connected, you can use the connector to transfer data, charge your device, or connect your computer

to external displays.

The USB-C connector also works as the power connector. Use the shipped USB-C power adapter and

power cord to connect the computer to ac power through the USB-C connector.

Lenovo provides various USB-C accessories to help you expand your computer functionality. For more

information, go to:

https://www.lenovo.com/accessories

Note: When the battery power is below 10%, the USB-C accessories connected to the USB-C connector

might not work correctly.

2 USB-C connector (Thunderbolt 3 compatible)

The USB-C connector (Thunderbolt 3 compatible) on your computer supports both the USB Type-C™

standard and the Thunderbolt 3 technology. With an appropriate USB-C cable connected, you can use the

connector to transfer data, charge your device, or connect your computer to external displays.

The USB-C connector (Thunderbolt 3 compatible) also works as the power connector. Use the shipped USB-

C power adapter and power cord to connect the computer to ac power through the USB-C connector

(Thunderbolt 3 compatible).

Chapter 1.Product overview 3

Lenovo provides various USB-C accessories to help you expand your computer functionality. For more

information, go to:

https://www.lenovo.com/accessories

Note: When the battery power is below 10%, the USB-C accessories connected to the USB-C connector

might not work correctly.

3 Docking-station connector

You can connect the computer to a supported docking station to extend the computer capabilities. For more

information, see “Attaching your computer to a docking station” on page 41.

4 Ethernet connector

The Ethernet connector enables you to connect the computer to a local area network (LAN).

DANGER

To avoid the risk of electrical shock, do not connect the telephone cable to the Ethernet connector.

The Ethernet connector has two network status indicators. When the green indicator is on, the computer is

connected to a LAN. When the yellow indicator blinks, data is being transmitted.

Note: If the computer is connected to a docking station, use the Ethernet connector on the docking station

instead of the one on the computer.

5 Always On USB 3.1 connector Gen 1

To charge the USB-compatible devices when your computer is off, in sleep mode, or in hibernation mode,

enable the Always On USB feature on your computer.

To configure the Always On USB settings, do the following:

1. Start the Lenovo Vantage program. See “Accessing Lenovo programs” on page 14.

2. Click Hardware Settings ➙ Power.

3. Locate the Always On USB section and follow the instructions on the screen to make your preferred

setting.

Note: The Always On USB 3.1 connector Gen 1 does not work if you click Charge from Sleep and your

computer is off without connecting to ac power.

6 High-Definition Multimedia Interface (HDMI)™ connector

The High-Definition Multimedia Interface (HDMI) connector is a digital audio and video interface. It enables

you to connect your computer to a compatible digital audio device or video monitor, such as a high-definition

television (HDTV).

7 Audio connector

You can connect headphones or a headset with a 3.5-mm (0.14-inch), 4-pole plug to the audio connector to

listen to the sound from the computer.

If you are using a headset with a function switch, do not press this switch while using the headset. If you

press the switch, the headset microphone is disabled, and the integrated microphones on the computer is

enabled instead.

4T480s User Guide

Note: The audio connector does not support a conventional microphone. For more information, see “Using

audio features” on page 31.

8 SD-card slot

You can insert an SD card into the SD-card slot for data access or storage. For more information, see “Using

an SD card or a smart card” on page 33.

Right-side view

1 Smart-card slot (available on some models) 2 USB 3.1 connector Gen 1

3 Fan louvers 4 Security-lock slot

1 Smart-card slot

You can use smart cards for authentication, data storage, and application processing. Within large

organizations, you might also use smart cards for strong security authentication of single sign-on (SSO). For

more information, see “Using an SD card or a smart card” on page 33.

2 USB 3.1 connector Gen 1

You can use the USB 3.1 connector Gen 1 to connect USB-compatible devices, such as a USB keyboard,

USB mouse, USB storage device, or USB printer.

Attention: When you attach a USB cable to this connector, ensure that the USB mark is facing upward.

Otherwise the connector might get damaged.

3 Fan louvers

The fan louvers and internal fan enable air to circulate in the computer to ensure proper cooling, especially

the cooling of the microprocessor.

Note: To ensure proper airflow, do not place any obstacles in front of the fan louvers.

4 Security-lock slot

To protect your computer from theft, lock your computer to a desk, table, or other fixture through a security

cable lock that fits this security-lock slot.

Note: You are responsible for evaluating, selecting, and implementing the locking device and security

feature. Lenovo makes no comments, judgments, or warranties about the function, quality, or performance

of the locking device and security feature. Cable locks for your product are available from Lenovo at https://

www.lenovoquickpick.com/.

Chapter 1.Product overview 5

Rear view

1 Nano-SIM-card tray

If your computer supports the wireless wide area network (wireless WAN) feature, a nano Subscriber

Identification Module (SIM) card might be required to establish wireless WAN connections. Depending on the

country or region of delivery, the nano-SIM card might be already installed in the nano-SIM-card tray.

Bottom view

1 Fan louvers 2 Emergency-reset hole

3 Docking-station hook holes 4 Speakers

1 Fan louvers

The fan louvers and internal fan enable air to circulate in the computer to ensure proper cooling, especially

the cooling of the microprocessor.

2 Emergency-reset hole

If the computer stops responding and you cannot turn it off by pressing the power button, remove the ac

power adapter. Then, insert a straightened paper clip into the emergency-reset hole to reset the computer.

3 Docking-station hook holes

You can use the docking-station hook holes to secure a supported docking station to extend the computer

capabilities.

6T480s User Guide

4 Speakers

Your computer is equipped with a pair of stereo speakers.

Status indicators

This topic provides information about locating and identifying the various status indicators on your computer.

Note: Depending on the model, your computer might look different from the following illustrations.

1 Caps Lock indicator

When this indicator is on, you can type uppercase letters by directly pressing the letter keys.

Chapter 1.Product overview 7

2 Fn Lock indicator

This indicator shows the status of Fn Lock function. For more information, see “Using the special keys” on

page 19.

3 Speaker-mute indicator

When this indicator is on, the speakers are muted.

4 Microphone-mute indicator

When this indicator is on, the microphones are muted.

5 Camera status indicator

When this indicator is on, the camera is in use.

6 8 System status indicators

The indicator in the ThinkPad logo on the computer lid and the indicator in the power button show the

system status of your computer.

• Blinks for three times: The computer is initially connected to power.

• On: The computer is on (in normal mode).

• Off: The computer is off or in hibernation mode.

• Blinks rapidly: The computer is entering sleep or hibernation mode.

• Blinks slowly: The computer is in sleep mode.

7 Fingerprint reader indicator

This indicator shows the status of fingerprint reader. For more information, see “Using the fingerprint reader”

on page 56.

9 ac power status indicator

This indicator shows the battery power status of the computer when ac power is connected.

• White: connected to ac power (battery power 90%–100%)

• Amber: connected to ac power (battery power 0%–90%)

• Off: not connected to ac power

Important product information

This section provides information to help you locate the following:

• Machine type and model information

• FCC ID and IC Certification information

• Windows operating systems information

Machine type and model information

When you contact Lenovo for help, the machine type and model information helps the technicians to identify

your computer and provide faster service.

8T480s User Guide

The following illustration shows where to find the machine type and model information of your computer.

FCC ID and IC Certification information

The FCC and IC Certification information is identified by a label on the computer as shown in the following

illustration.

Note: Depending on the model, your computer might look different from the following illustration.

• For a factory-preinstalled wireless module, this label identifies the actual FCC ID and IC certification

number for the wireless module installed by Lenovo.

Note: Do not remove or replace a factory-preinstalled wireless module by yourself. For replacement, you

must contact Lenovo service first. Lenovo is not responsible for any damage caused by unauthorized

replacement.

Chapter 1.Product overview 9

• For a user-installable wireless WAN module, the actual FCC ID and IC certification number is affixed to the

wireless WAN module 1 installed in the computer. To view the FCC ID and IC certification number, you

must remove the computer base cover assembly. For instructions, see “Replacing the base cover

assembly” on page 99.

Note: For the user-installable wireless module, ensure that you use only a Lenovo-authorized wireless

module specifically tested for this computer model. Otherwise, the computer will generate an error-code

beep sequence when you turn on the computer.

Labels for the Windows operating systems

Windows® 10 Genuine Microsoft® label: Your computer might have a Genuine Microsoft label affixed to its

cover depending on the following factors:

• Your geographic location

10 T480s User Guide

• Date when your computer was manufactured

• Version of Windows 10 that is preinstalled

Go to https://www.microsoft.com/en-us/howtotell/Hardware.aspx for illustrations of the various types of

Genuine Microsoft labels.

• In the People’s Republic of China, the Genuine Microsoft label is required on all computer models

preinstalled with any version of Windows 10.

• In other countries and regions, the Genuine Microsoft label is required only on computer models licensed

for Windows 10 Pro.

The absence of a Genuine Microsoft label does not indicate that the preinstalled Windows version is not

genuine. For details on how to tell whether your preinstalled Windows product is genuine, refer to the

information provided by Microsoft at:

https://www.microsoft.com/en-us/howtotell/default.aspx

There are no external, visual indicators of the Product ID or Windows version for which the computer is

licensed. Instead, the Product ID is recorded in the computer firmware. Whenever a Windows 10 product is

installed, the installation program checks the computer firmware for a valid, matching Product ID to complete

the activation.

In some cases, an earlier Windows version might be preinstalled under the terms of the Windows 10 Pro

license downgrade rights.

Computer features

The computer features introduced in this topic cover various models. Some computer features might be

available only on specific models.

Computer color

• Black or silver

Microprocessor

To view the microprocessor information of your computer, right-click the Start button and then click System.

Memory

• Double data rate 4 (DDR4) small outline dual in-line memory module (SODIMM, available on some

models), up to 16 GB

• Double data rate 4 (DDR4) memory module soldered on the system board, up to 8 GB

Storage device

• M.2 2280 solid-state drive

Display

• Brightness control

• Color display with In-Plane Switching (IPS) technology

• Display size: 355.6 mm (14 inches)

• Display resolution: 1920 x 1080 pixels or 2560 x 1440 pixels

• Multi-touch technology (available on some models)

• Privacy Guard feature (available on some models)

Chapter 1.Product overview 11

Graphics

• Intel® UHD graphics or discrete graphics

Keyboard

• Six-row keyboard (traditional or backlight)

• Function keys

• ThinkPad pointing device (including the TrackPoint pointing device and trackpad)

Connectors and slots

• Audio connector

• Always On USB 3.1 connector Gen 1

• Ethernet connector

• HDMI connector

• Nano-SIM-card tray

• SD-card slot

• Smart-card slot (available on some models)

• Two USB-C connectors (one Thunderbolt 3 compatible)

• USB 3.1 connector Gen 1

Security features

• Face authentication (available on models with the infrared camera)

• Conventional camera with ThinkShutter (available on some models)

• Fingerprint reader(available on some models)

• Password

• Security-lock slot

• Trusted Platform Module (TPM)

Wireless features

• Bluetooth

• Near field communication (NFC)

• Wireless local area network (WLAN)

• Wireless wide area network (WWAN, available on some models)

• Global Positioning System (GPS, available on models with the wireless-WAN card)

Others

• Camera (available on some models)

• Microphones

Computer specifications

Size

For models without the Privacy Guard feature:

• Width: 331 mm (13.03 inches)

12 T480s User Guide

• Depth: 226.8 mm (8.93 inches)

• Thickness: 18.45 mm (0.73 inches)

For models with the Privacy Guard feature:

• Width: 331.34 mm (13.04 inches)

• Depth: 227.38 mm (8.95 inches)

• Thickness: 19.45 mm (0.77 inches)

Maximum heat output (depending on the model)

• 45 W (154 Btu/hr)

• 65 W (222 Btu/hr)

Power source (ac power adapter)

• Sine-wave input at 50 Hz to 60 Hz

• Input rating of the ac power adapter: 100 V to 240 V ac, 50 Hz to 60 Hz

Operating environment

Maximum altitude (without pressurization)

• 3048 m (10 000 ft)

Temperature

• At altitudes up to 2438 m (8000 ft)

– Operating: 5°C to 35°C (41°F to 95°F)

– Storage: 5°C to 43°C (41°F to 109°F)

• At altitudes above 2438 m (8000 ft)

– Maximum temperature when operating under the unpressurized condition: 31.3°C (88°F)

Note: When you charge the battery, its temperature must be at least 10°C (50°F).

Relative humidity

• Operating: 8% to 95% at wet-bulb temperature 23°C (73°F)

• Storage: 5% to 95% at wet-bulb temperature 27°C (81°F)

If possible, place your computer in a well-ventilated and dry area without direct exposure to sunshine.

Attention:

• Keep electrical appliances such as electric fans, radio, air conditioners, and microwave ovens away from

the computer. The strong magnetic fields generated by these appliances can damage the monitor and

data on the internal storage drive.

• Do not place any beverages on top of or beside the computer or other attached devices. If liquid is spilled

on or in the computer or an attached device, a short circuit or other damage might occur.

• Do not eat or smoke over your keyboard. Particles that fall into your keyboard can cause damage.

Chapter 1.Product overview 13

Lenovo programs

Your computer comes with Lenovo programs to help you work easily and securely.

Accessing Lenovo programs

To access Lenovo programs on your computer, do the following:

1. Open the Start menu and locate a program by the program name.

2. If you do not find the program in the program list, search for the program in the search box.

An introduction to Lenovo programs

This topic provides a brief introduction to Lenovo programs. Depending on your computer model, some of

the programs might not be available.

The available programs are subject to change without notice. To learn more about the programs and other

computing solutions offered by Lenovo, go to:

https://support.lenovo.com

Hotkey Features Integration This software enables F1–F12 special keys and buttons on your computer. For

example, when the microphone mute key or button is pressed, the microphone

state switches between mute and unmute. The mute state indicator is displayed

on the screen whenever the mute state is changed.

Lenovo Vantage Your computer’s best features and capabilities should be easy to access and

understand. With Lenovo Vantage, they are.

Use Lenovo Vantage to do the following:

• Manage updates, get the latest drivers, and keep the software on your

computer up-to-date.

• Protect yourself from malicious Wi-Fi networks.

• Optimize your computer performance, monitor your computer health.

• Access your user guide, check warranty status, and view accessories

customized for your computer.

• Read how-to articles, explore Lenovo forums, and stay up-to-date on

technology news with articles and blogs from trusted sources.

• Configure hardware settings.

• Create and manage your Lenovo ID.

This app is filled with exclusive Lenovo content to help you learn more about

what you can do with your Lenovo computer.

14 T480s User Guide

Chapter 2. Using your computer

This chapter provides information to help you use the various features provided by your computer.

Registering your computer

When you register your computer, information is entered into a database, which enables Lenovo to contact

you if there is a recall or other severe problem. In addition, some locations offer extended privileges and

services to registered users.

When you register your computer with Lenovo, you also will receive the following benefits:

• Quicker service when you call Lenovo for help

• Automatic notification of free software and special promotional offers

To register your computer with Lenovo, go to https://support.lenovo.com/productregistration and follow the

instructions on the screen.

Frequently asked questions

This topic provides a few tips to help you optimize the use of your ThinkPad notebook computers.

Can I get my user guide in another language?

To download the user guide in another language, go to https://support.lenovo.com. Then follow the

instructions on the screen.

How do I get help about the Windows operating system?

The Windows help information system provides you with detailed information about using the Windows

operating system so that you can get the most of your computer. To access the Windows help information

system, click the Start button to open the Start menu, and then click Get Help. Additionally, you can use the

Cortana® personal assistant to search for help, apps, files, settings, and so on.

How do I access Control Panel?

Click the Start button to open the Start menu, and then click Windows System ➙ Control Panel.

How to turn off my computer?

Open the Start menu, click Power, and then click Shut down.

How to partition my storage drive?

To partition the storage drive of your computer in the Windows operating system, refer to https://

support.lenovo.com/solutions/ht503851.

How do I use battery power more effectively when I am on the go?

• To conserve power, or to suspend operation without exiting programs or saving files, see “Power-saving

modes” on page 27.

• To achieve the best balance between performance and power saving, create and apply an appropriate

power plan. See “Managing the battery power” on page 27.

How do I securely dispose of data stored on the internal storage drive?

• Study Chapter 5 “Security” on page 53 to find out how you can protect your computer from theft and

unauthorized use.

• Before you dispose of the data on the internal storage drive, ensure that you read “Deleting data from your

storage drive” on page 58.

How do I attach an external display?

• Refer to “Using an external display” on page 35.

• With the Extend desktop function, you can display output on both the computer display and an external

display.

How do I attach or replace a device?

Refer to the appropriate topic in Chapter 9 “Replacing devices” on page 97.

I have been using the computer for some time already, and is getting slower. What should I do?

• Follow the “General tips for preventing problems” on page 79.

• Diagnose problems yourself by using the preinstalled diagnostic software. See “Diagnosing problems” on

page 79.

• Check for recovery solutions in Chapter 8 “Recovery information” on page 95.

Print the following topics and keep them with your computer in case you are unable to access this

electronic user guide when necessary.

• “Installing a Windows 10 operating system” on page 61

• “Computer stops responding” on page 80

• “Power problems” on page 91

Using the multi-touch screen

This topic provides instructions on how to use the multi-touch screen that is available on some models.

Notes:

• Your computer screen might look different from the following illustrations.

• Depending on the program you use, some gestures might not be available.

The following table introduces some frequently used gestures.

16 T480s User Guide

Touch gesture (touch models

only)

Description

Touch: Tap.

Mouse action: Click.

Function: Open an app or perform an action on an open app, such as Copy, Save,

and Delete, depending on the app.

Touch: Tap and hold.

Mouse action: Right-click.

Function: Open a menu with multiple options.

Touch: Slide.

Mouse action: Scroll the mouse wheel, move the scroll bar, or click the scroll

arrow.

Function: Scroll through items, such as lists, pages, and photos.

Touch: Drag an item to the location you want.

Mouse action: Click, hold, and drag an item.

Function: Move an object.

Touch: Move two fingers closer together.

Mouse action: Press the Ctrl key while scrolling the mouse wheel backward.

Function: Zoom out.

Touch: Move two fingers farther apart.

Mouse action: Press the Ctrl key while scrolling the mouse wheel forward.

Function: Zoom in.

Touch: Swipe in from the right edge.

Mouse action: Click the action center icon in the Windows notification area.

Function: Open the action center to see your notifications and quick actions.

Chapter 2.Using your computer 17

Touch gesture (touch models

only)

Description

Touch: Swipe in from the left edge.

Mouse action: Click the task-view icon on the taskbar.

Function: View all your open windows in task view.

• Short swipe for full-screened app or when your computer is in the tablet

mode

Touch: Swipe downwards shortly from the top edge.

Mouse action: Move your pointer to the top edge of the screen.

Function: Show a hidden title bar.

• Long swipe when your computer is in the tablet mode

Touch: Swipe in from the top edge to the bottom edge.

Mouse action: From the top edge of the screen, click and hold, move the

pointer to the bottom of the screen, and then release.

Function: Close the current app.

Tips on using the multi-touch screen

• The multi-touch screen is a glass panel covered with a plastic film. Do not apply pressure or place any

metallic object on the screen, which might damage the touch panel or cause it to malfunction.

• Do not use fingernails, gloved fingers, or inanimate objects for input on the screen.

• Regularly calibrate the accuracy of the finger input to avoid a discrepancy.

Tips on cleaning the multi-touch screen

• Turn off the computer before cleaning the multi-touch screen.

• Use a dry, soft, and lint-free cloth or a piece of absorbent cotton to remove fingerprints or dust from the

multi-touch screen. Do not apply solvents to the cloth.

• Gently wipe the screen using a top-down motion. Do not apply any pressure on the screen.

Using the Privacy Guard feature

Depending on the model, your computer might support the Privacy Guard feature.

The Privacy Guard feature prevents others from peeking at your screen to protect your privacy whenever

needed. When the feature is enabled, it darkens the screen and narrows the viewing angle, making the

screen content easily visible only to the people in front of the computer.

By default, the Privacy Guard feature is disabled. To enable or disable this feature, do one of the following:

• Press Fn+D.

• Press F12 (when the Fn Lock indicator is off) or Fn+F12 (when the Fn Lock indicator is on).

• Open the Start menu and then click Lenovo Vantage ➙ Hardware Settings ➙ Audio/Visual. Locate the

Privacy Guard section to turn on or turn off the switch.

Note: You will be prompted by the on-screen display every time the feature is enabled or disabled.

18 T480s User Guide

Automatic Privacy Guard feature for passwords

Note: The automatic Privacy Guard feature for passwords is not supported on computers with the Ubuntu

operating system.

When the Privacy Guard feature is disabled, you can select the automatic Privacy Guard feature for

passwords by doing the following:

1. Open the Start menu and then click Lenovo Vantage ➙ Hardware Settings ➙ Audio/Visual.

2. Locate the Privacy Guard section, and then select Enable this feature when typing passwords.

Note: The check box is not selectable when the Privacy Guard feature is enabled.

If the automatic Privacy Guard feature for passwords is selected and a password input field is detected on

the screen, the feature will turn on automatically to protect your password from being peeked at by others.

When no password input field is detected on the screen, the feature will turn off automatically.

Tips on using the Privacy Guard feature

• To increase privacy level, press until the desired level is achieved. This is useful in darker

environments.

• To decrease privacy level, press until the desired level is achieved. This is useful in brighter

environments.

• Your computer will remember the last used privacy level.

Using the special keys

Your computer has several special keys to help you work more easily and effectively.

1 Windows logo key

Press the Windows logo key to open the Start menu. For information about using the Windows logo key with

other keys, see the help information system of the Windows operating system.

2 3 Fn key and function keys

You can configure the Fn key and function keys by doing the following:

1. Go to Control Panel, and then change the view of Control Panel from Category to Large icons or Small

icons.

2. Click Lenovo - Keyboard Manager and the Keyboard Manager window is displayed.

3. Select the options of your preference.

Chapter 2.Using your computer 19

• + Switch the key function between the standard F1–F12 function and the special function

printed as an icon on each key. When the Fn Lock indicator is off, you can use the default function. You

can change the default function in the Keyboard Properties window.

• Mute or unmute the speakers.

If you mute the sound and turn off your computer, the sound will remain muted when you turn on your

computer. To turn on the sound, press or .

• Decrease the speaker volume.

• Increase the speaker volume.

• Mute or unmute the microphones.

• Darken the computer display.

• Brighten the computer display.

• Manage external displays.

• Enable or disable the built-in wireless features.

• Open the Settings window.

• Enable or disable the built-in Bluetooth features.

• Open a keyboard setting page.

• Invoke the function defined by yourself. To define or change the action for the F12 key, do the

following:

1. Open Lenovo Vantage. See “Accessing Lenovo programs” on page 14.

2. Click Hardware Settings and then click Input.

3. Locate the Keyboard: User-defined Key section and follow the instructions on the screen to

complete the setting.

On this setting page, you can also define different functions for the key combinations with F12, such as

Shift+F12, Alt+F12, or Ctrl+F12.

Key combinations

• + : Open the Snipping Tool program.

• Fn+Spacebar: If your computer supports keyboard backlight, press Fn+Spacebar to switch between the

different keyboard backlight status.

• Fn+B: This key combination has the same function as the Break key on a conventional external keyboard.

• Fn+K: This key combination has the same function as the ScrLK or Scroll Lock key on a conventional

external keyboard.

• Fn+P: This key combination has the same function as the Pause key on a conventional external keyboard.

• Fn+S: This key combination has the same function as the SysRq key on a conventional external keyboard.

• Fn+4: Press Fn+4 to put the computer into sleep mode. To wake up the computer, press Fn or the power

button.

20 T480s User Guide

• Fn+D: If your computer supports the Privacy Guard feature, press Fn+D to enable or disable the feature.

For more information, see “Using the Privacy Guard feature” on page 18.

• Fn+Left Arrow: This key combination has the same function as the Home key.

• Fn+Right Arrow: This key combination has the same function as the End key.

Using the ThinkPad pointing device

This section provides information about using the ThinkPad pointing device.

ThinkPad pointing device overview

The ThinkPad pointing device enables you to perform all the functions of a traditional mouse, such as

pointing, clicking, and scrolling. With the ThinkPad pointing device, you also can perform various touch

gestures, such as rotating and zooming in or out.

The ThinkPad pointing device consists of the following devices:

1 TrackPoint pointing device

2 Trackpad

Note: Depending on the model, your TrackPoint pointing device and the trackpad might look different from

the illustration in this topic.

By default, both the TrackPoint pointing device and the trackpad are active with the touch gestures enabled.

To change the settings, see “Customizing the ThinkPad pointing device” on page 24.

Using the TrackPoint pointing device

The TrackPoint pointing device enables you to perform all the functions of a traditional mouse, such as

pointing, clicking, and scrolling.

The TrackPoint pointing device consists of the following components:

1 Pointing stick

2 Left-click button (primary-click button)

Chapter 2.Using your computer 21

3 Right-click button (secondary-click button)

4 Scroll bar

To use the TrackPoint pointing device, see the following instructions:

Note: Place your hands in the typing position and use your index finger or middle finger to apply pressure to

the pointing-stick nonslip cap. Use either thumb to press the left-click button or right-click button.

• Point

Use the pointing stick 1 to move the pointer on the screen. To use the pointing stick, apply pressure to

the pointing-stick nonslip cap in any direction parallel to the keyboard. The pointer moves accordingly but

the pointing stick itself does not move. The speed at which the pointer moves depends on the amount of

pressure you apply to the pointing stick.

• Left-click

Press the left-click button 2 to select or open an item.

• Right-click

Press the right-click button 3 to display a shortcut menu.

• Scroll

Press and hold the dotted scroll bar 4 while applying pressure to the pointing stick in the vertical or

horizontal direction. Then you can scroll through the document, Web site, or apps.

Using the trackpad

The entire trackpad surface is sensitive to finger touch and movement. You can use the trackpad to perform

all the pointing, clicking, and scrolling functions of a traditional mouse.

The trackpad can be divided into two zones:

1 Left-click zone (primary-click zone)

2 Right-click zone (secondary-click zone)

22 T480s User Guide

To use the trackpad, see the following instructions:

• Point

Slide one finger across the surface of the trackpad to move the pointer accordingly.

• Left-click

Press the left-click zone 1 to select or open an item.

You also can tap anywhere on the surface of the trackpad with one finger to perform the left-click action.

• Right-click

Press the right-click zone 2 to display a shortcut menu.

You also can tap anywhere on the surface of the trackpad with two fingers to perform the right-click

action.

• Scroll

Put two fingers on the trackpad and move them in the vertical or horizontal direction. This action enables

you to scroll through the document, Web site, or apps. Ensure that you position your two fingers slightly

apart from each other.

With the trackpad, you also can perform a variety of touch gestures. For information about using the touch

gestures, see “Using the trackpad touch gestures” on page 23.

If the trackpad surface is stained with oil, turn off the computer first. Then gently wipe the trackpad surface

with a soft and lint-free cloth moistened with lukewarm water or computer cleaner.

Using the trackpad touch gestures

The entire trackpad surface is sensitive to finger touch and movement. You can use the trackpad to perform

the same point and click actions as you would use a traditional mouse. You also can use the trackpad to

perform various touch gestures.

The following section introduces some frequently used touch gestures such as tapping, dragging, and

scrolling. For more gestures, see the help information system of the ThinkPad pointing device.

Notes:

• When using two or more fingers, ensure that you position your fingers slightly apart.

• Some gestures are not available if the last action was done from the TrackPoint pointing device.

Chapter 2.Using your computer 23

• Some gestures are only available when you are using certain apps.

• Depending on the model, the trackpad on your computer might look different from the illustrations in this

topic.

Tap

Tap anywhere on the trackpad

with one finger to select or open

an item.

Two-finger tap

Tap anywhere on the trackpad with

two fingers to display a shortcut

menu.

Two-finger scroll

Put two fingers on the trackpad

and move them in the vertical or

horizontal direction. This action

enables you to scroll through the

document, Web site, or apps.

Two-finger zoom out

Put two fingers on the trackpad

and move them closer together to

zoom out.

Two-finger zoom in

Put two fingers on the trackpad

and move them farther apart to

zoom in.

Swipe three fingers up

Put three fingers on the trackpad

and move them up to open the task

view to see all your open windows.

Swipe three fingers down

Put three fingers on the trackpad

and move them down to show

the desktop.

Customizing the ThinkPad pointing device

You can customize the ThinkPad pointing device so you can use it more comfortably and efficiently. For

example, you can choose to enable the TrackPoint pointing device, the trackpad, or both. You also can

disable or enable the touch gestures.

To customize the ThinkPad pointing device, do the following:

1. Go to Control Panel.

2. View Control Panel by Large icons or Small icons. Click Mouse. The Mouse Properties window is

displayed.

3. In the Mouse Properties window, follow the instructions on the screen to complete the customization.

Replacing the cap on the pointing stick

The cap 1 on the end of the pointing stick is removable. After you use the cap for a period of time, you might

consider replacing the cap with a new one.

Notes:

• Ensure that you use a cap with grooves a as shown in the following illustration.

• Depending on the model, your keyboard might look different from the illustration in this topic.

24 T480s User Guide

Power management

This section provides information about how to use ac power and battery power to achieve the best balance

between performance and power management.

Using the ac power adapter

The power to run your computer can come either from the battery or from ac power. While you use ac power,

the battery charges automatically.

Your computer comes with a USB-C type ac power adapter and a power cord.

• ac power adapter: Converts ac power for notebook computer use.

• Power cord: Connects the ac outlet and the ac power adapter.

Connecting the ac power adapter

To connect the computer to ac power, ensure that you follow the steps in order:

Attention: Using an improper power cord might severely damage your computer.

1. Connect the power cord to the ac power adapter.

2. Connect the ac power adapter to one of the USB-C connectors of the computer.

3. Connect the power cord to an electrical outlet.

Tips on using the ac power adapter

• When the ac power adapter is not in use, disconnect it from the electrical outlet.

• Do not bind the power cord tightly around the ac power adapter transformer pack when it is connected to

the transformer.

Using the battery

When you use your computer away from electrical outlets, you depend on battery power to keep your

computer running. Different computer components consume power at different rates. The more you use the

power-intensive components, the faster you consume battery power.

Spend more time unplugged with ThinkPad batteries. Mobility has revolutionized business by enabling you to

take your work wherever you go. With ThinkPad batteries, you are able to work longer without being tied to

an electrical outlet.

Chapter 2.Using your computer 25

Checking the battery status

Move your pointer to the battery-status icon in the Windows notification area to check the battery status. The

battery-status icon displays the percentage of battery power remaining and how long you can use your

computer before you must charge the battery.

The rate at which you use battery power determines how long you can use the battery of your computer

between charges. Because every computer user has individual habits and needs, it is difficult to predict how

long a battery charge lasts. There are two main factors:

• How much energy is stored in the battery when you begin to work

• The way you use your computer, for example:

– How often you access the storage drive

– How bright you make the computer display

– How often you use the wireless feature

Charging the battery

When you find that the remaining battery power is low, charge your battery.

If an ac outlet is convenient, connect the computer to ac power. The battery is fully charged in about four to

eight hours. If the 65-watt power adapter shipped with your computer supports the rapid charge function,

the battery is 80% charged in about an hour when the computer is turned off. The actual charging time

depends on the battery size, the physical environment, and whether you are using the computer. You can

check the battery charging status at any time through the battery-status icon in the Windows notification

area.

Note: To maximize the life of the battery, the computer does not start recharging the battery if the remaining

power is greater than 95%.

When to charge the battery

• Battery charging is affected by its temperature. The recommended temperature range for charging the

battery is between 10°C (50°F) and 35°C (95°F).

Notes: To check the battery temperature, do the following:

1. Open Lenovo Vantage. See “Accessing Lenovo programs” on page 14.

2. Click Hardware Settings ➙ Power.

3. Locate the Power Status section and then click Show Details to view the battery temperature.

• Charge the battery in any of the following conditions:

– A new battery is installed.

– The percentage of power remaining is low.

– The battery has not been used for a long time.

Maximizing the battery life

To maximize the life of the battery, do the following:

• Use the battery until the charge is depleted.

• Recharge the battery completely before using it. You can see whether the battery is fully charged from the

battery-status icon in the Windows notification area.

• Always use power management features such as power-saving modes.

26 T480s User Guide

Managing the battery power

To achieve the best balance between performance and power saving, adjust your power plan settings. To

adjust power plan settings, do the following:

1. Go to Control Panel, and then change the view of Control Panel from Category to Large icons or Small

icons.

2. Click Power Options.

3. Follow the instructions on the screen.

For more information, see the Windows help information system.

Power-saving modes

There are several modes that you can use at any time to conserve power. This section introduces each mode

and gives tips on the effective use of battery power.

• Sleep mode

In sleep mode, your work is saved to memory, and then the storage drive and the computer display are

turned off. When your computer wakes up, your work is restored within seconds.

To put your computer to sleep mode, open the Start menu, click Power, and then click Sleep.

• Hibernation mode

By using this mode, you can turn off your computer completely without saving files or exiting any

programs that are running. When the computer enters hibernation mode, all open programs, folders, and

files are saved to the storage drive, and then the computer turns off.

To put the computer to hibernation mode, define what the power button does first, and then press the

power button to put the computer to hibernation mode.

If you put your computer to hibernation mode with the wake-up function disabled, the computer does not

consume any power. The wake-up function is disabled by default. If you put your computer to hibernation

mode with the wake-up function enabled, the computer consumes a small amount of power.

To enable the wake-up function, do the following:

1. Open Control Panel, view Control Panel by Category, and then click System and Security.

2. Click Administrative Tools.

3. Double-click Task Scheduler. If you are prompted for an administrator password or confirmation,

type the password or provide confirmation.

4. From the left pane, select the task folder for which you want to enable the wake-up function. The

scheduled tasks are displayed.

5. Click a scheduled task, and then click the Conditions tab.

6. Under Power, select Wake the computer to run this task.

• Wireless off

When you are not using the wireless features, such as Bluetooth or wireless LAN, turn them off to help

conserve power.

Cabled Ethernet connections

With an Ethernet cable, you can connect your computer to a local network through the Ethernet connector

on your computer.

The Ethernet connector has two network status indicators. When the green indicator is on, the computer is

connected to a LAN. When the yellow indicator blinks, data is being transmitted.

Chapter 2.Using your computer 27

Note: If the computer is connected to a supported docking station or a supported dock, use the Ethernet

connector on the docking station or the dock instead of the one on the computer.

DANGER

To avoid the risk of electrical shock, do not connect the telephone cable to the Ethernet connector.

Wireless connections

Wireless connection is the transfer of data without the use of cables but by means of radio waves only.

Using the wireless-LAN connection

A wireless local area network (LAN) covers a relatively small geographic area, such as an office building or a

house. Devices based on the 802.11 standards can connect to this type of network.

Your computer comes with a built-in wireless network card to help you establish wireless connections and

monitor the connection status.

To establish a wireless-LAN connection, do the following:

1. Turn on the wireless feature. See “Using the special keys” on page 19.

2. Click the wireless-network-connection-status icon in the Windows notification area. A list of available

wireless networks is displayed.

3. Select a network to connect to it. Provide required information if needed.

The computer automatically connects to an available and remembered wireless network when the location

changes. If the available wireless network is secured, provide the password as required. For more

information, see the Windows help information system.

Tips on using the wireless-LAN feature

To achieve the best connection, use the following guidelines:

• Place your computer so that there are as few obstacles as possible between the wireless-LAN access

point and the computer.

• Open your computer cover to an angle of slightly more than 90 degrees.

Checking the wireless-LAN connection status

You can check the wireless-LAN connection status through the wireless-network-connection-status icon in

the Windows notification area. The more bars encompassed, the better the signal is.

Using the wireless-WAN connection

Wireless wide area network (WAN), which uses cellular networks for data transmission, enables you to

establish wireless connections over remote public or private networks. These connections can be maintained

over a large geographical area by use of multiple antenna sites or satellite systems maintained by wireless

service providers.

Some ThinkPad notebook computers come with a wireless-WAN card installed, which provides some

wireless-WAN technologies, such as HSPA, 3G, 4G, or LTE. By using the wireless-WAN card, you can

establish wireless-WAN connections.

Note: The wireless-WAN service is provided by authorized service providers in some countries or regions.

28 T480s User Guide

Tips for using the wireless-WAN feature

To achieve the best connection, use the following guidelines:

• Keep your computer away from your body.

• Place your computer on a flat surface and open your computer display to an angle of slightly more than 90

degrees.

• Place your computer away from concrete or brick walls that might dampen cellular signals.

• Best reception is available near windows and other locations where cellular phone reception is the

strongest.

Checking the wireless-WAN connection status

You can check the wireless-WAN connection status through the wireless-network-connection-status icon in

the Windows notification area. The more bars encompassed, the better the signal is.

Using the Bluetooth connection

Bluetooth can connect devices that are within a short distance from one another. Bluetooth is commonly

used in the following scenarios:

• Connecting peripheral devices to a computer

• Transferring data between hand-held devices and a personal computer

• Remotely controlling and communicating with devices such as mobile phones

Depending on the model, your computer might support the Bluetooth feature. To transfer data through the

Bluetooth feature, do the following:

Note: It is not recommended to use the wireless feature (the 802.11 standards) of your computer

simultaneously with a Bluetooth option. The data transmission speed can be delayed and the performance of

the wireless feature can be degraded.

1. Do one of the following:

• Press the Bluetooth-control key and turn on the Bluetooth feature.

• Open the Start menu, and then click Settings ➙ Devices ➙ Bluetooth & other devices. Turn on the

Bluetooth switch to enable the Bluetooth feature.

2. Right-click the data that you want to send.

3. Select Send to ➙ Bluetooth device.

4. Select a Bluetooth device, and then follow the instructions on the screen.

For more information, see the Windows help information system and the help information system of the

Bluetooth device.

Using the NFC devices

NFC is a high-frequency and short-range wireless communication technology. By using NFC, you can

establish the radio communications between your computer and another NFC-enabled device over a few

centimeters or inches.

If your computer supports the NFC feature, you will see an NFC mark or label around the trackpad area.

Chapter 2.Using your computer 29

• For black models, if your computer supports the NFC feature, you will see an NFC mark 1 printed on the

trackpad.

• For silver models, if your computer supports the NFC feature, you will see an NFC label 1 attached to the

right side of the trackpad.

Enabling the NFC feature

By default, the NFC feature is enabled. If the NFC feature of your computer is disabled, do the following to

enable the NFC feature:

1. Open the Start menu and then click Settings ➙ Network & Internet ➙ Airplane mode.

2. Turn off the Airplane mode.

3. Turn on the NFC function.

Pairing your computer with an NFC card or an NFC-enabled smartphone

This section provides instructions on how to pair your computer with an NFC device. For more information

about data transfer, see the documentation of the NFC device.

30 T480s User Guide

Attention:

• Before handling the NFC card, touch a metal table or a grounded metal object. Otherwise the card might

get damaged by the static electricity from your body.

• During the data transfer, do not put your computer or NFC-enabled smartphone into sleep mode;

otherwise, your data might get damaged.

Before you start, ensure that the card is in NFC Data Exchange Format (NDEF) or the smartphone screen is

facing upward, otherwise the card or the phone cannot be detected. Then do the following:

Notes:

• Depending on the model, your computer might look different from the illustration.

• The following pairing method is applicable to both black and silver models.

1. Position the NFC card or the phone closely below the TrackPoint buttons as shown.

2. Slowly move the card or the phone a distance within 60 mm (2.4 inches) to the direction of the computer

display, and 10 mm (0.4 inches) to the left side of the trackpad. You will be prompted when the card or

the phone is detected.

Using the Airplane mode

If the Airplane mode is enabled, all wireless features are disabled.

To enable or disable the Airplane mode, do the following:

1. Open the Start menu.

2. Click Settings ➙ Network & Internet ➙ Airplane mode.

3. Slide the control for Airplane mode to turn it on or off.

Using audio features

Your computer is equipped with the following items:

• Audio connector, 3.5 mm (0.14 inches) in diameter

• Microphones

• Speakers

Your computer also has an audio chip that enables you to enjoy various multimedia audio features, such as

the following:

Chapter 2.Using your computer 31

• Compliant with High Definition Audio

• Playback of MIDI and MP3 files

• Recording and playback of PCM and WAV files

• Recording from various sound sources, such as a headset attached

The following list provides information about supported functions of the audio devices attached to the

connectors on your computer or the docking station.

• Headset with a 3.5-mm (0.14-inch), 4-pole plug: Headphone and microphone functions

• Conventional headphone: Headphone function

Note: The conventional microphone is not supported.

Using the smart audio feature

The smart audio feature is supported on some computer models. To help protect against hearing loss, the

feature limits the computer’s maximum wide band true RMS output voltage to 130 mV when a headset or

headphone is connected.

To change the setting, do the following:

1. Go to Control Panel and view by Large icons.

2. Click SmartAudio. In the window displayed, click the Disable Headphone Limiter icon. Then follow the

on-screen instructions.

Using the cameras

Depending on the model, your computer might be equipped with a conventional camera with ThinkShutter,

or your computer might support both an infrared camera and a conventional camera.

Using the conventional camera with ThinkShutter

To use the conventional camera with ThinkShutter to take pictures and record videos, slide the ThinkShutter

to the left to unveil the camera lens first. Then open the Start menu and click Camera from the program list. If

you use other programs that provide features such as photographing, video capturing, and video

conferencing, the camera starts automatically when you enable the camera-required feature. When the

camera starts, the camera status indicator nearby turns on, indicating that the camera is in use. If you want

to cover the camera lens, slide the ThinkShutter to the right.

If you want to configure the camera settings, open the Start menu and then click Lenovo Vantage ➙

Hardware Settings ➙ Audio/Visual. Locate the Camera section and then follow the instructions on the

screen to configure the camera settings.

Using the infrared camera

The infrared camera provides a personal and secure way for you to sign in to your computer with face

authentication. After setting the infrared camera for face authentication, you can unlock your computer by

scanning your face instead of using a password.

The infrared camera has the following components:

32 T480s User Guide

1 3 Infrared light-emitting diode (LED)

The infrared LED emits infrared light. Normally the infrared light is invisible to the naked eyes.

2 Infrared camera lens

The infrared camera lens is used for creating the facial image of a user.

4 Camera indicator

When the camera indicator is on, the infrared camera is in the recognition mode.

To set the infrared camera for face authentication, do the following:

1. Open the Start menu and click Settings ➙ Accounts ➙ Sign-in options.

2. Scroll down to the Password section and click Add to create a password.

3. Follow the instructions on the screen to create a Personal Identification Number (PIN).

4. Locate the Windows Hello section and click Set up under Face Recognition. Then click Get Started.

5. Enter the PIN you have set earlier. The camera preview starts.

6. Follow the instructions on the screen to complete the setup.

7. Click Improve Recognition to improve the image so that Windows Hello can recognize you in different

light conditions or when your appearance changes.

To use the infrared camera to unlock your computer, do the following:

1. On the Windows lock screen, select the smiling face icon from the sign-in options.

2. Follow the instructions on the screen and ensure that you are centered and looking directly at the

camera. When the program recognizes your face, it automatically unlocks the screen and signs you in to

the Windows operating system.

Using an SD card or a smart card

Your computer has an SD card slot. Depending on the model, your computer might also have a smart-card

slot.

Supported SD card types

The SD card slot on your computer only supports the following SD cards:

Note: Your computer does not support the content protection for recordable media (CPRM) feature for the

SD card.

Chapter 2.Using your computer 33

• Secure Digital (SD) card

• Secure Digital eXtended-Capacity (SDXC) USH-1 card

• Secure Digital High-Capacity (SDHC) USH-1 card

Supported smart card type

You can use smart cards for authentication, data storage, and application processing. Within large

organizations, you might also use smart cards for strong security authentication of single sign-on (SSO). The

smart-card slot on your computer only supports the smart card of the following specifications:

• Length: 85.60 mm (3.37 inches)

• Width: 53.98 mm (2.13 inches)

• Thickness: 0.76 mm (0.03 inches)

Attention: Smart cards with slits are not supported. Do not insert such a smart card into the smart-card slot

of your computer. Otherwise the slot might get damaged.

Installing an SD card or a smart card

Attention: Before you start installing a card, touch a metal table or a grounded metal object. This action

reduces any static electricity from your body. Static electricity could damage the card.

To install the card, do the following:

1. Locate the appropriate type of slot for your card. See “Computer controls, connectors, and indicators”

on page 1.

2. Ensure that the card is correctly oriented:

• For the SD card: The metal contacts are facing down and pointing toward the card slot.

• For the smart card: The metal contacts are facing upward and pointing toward the card slot.

3. Press the card firmly into the card slot.

If the plug-and-play feature is not enabled for the installed SD card or smart card, do the following to enable

the feature:

1. Go to Control Panel.

2. View Control Panel by Category. Click Hardware and Sound.

3. Click Device Manager. If you are prompted for an administrator password or confirmation, type the

password or provide confirmation.

4. From the Action menu, select Add legacy hardware. The Add Hardware Wizard starts.

5. Follow the instructions on the screen.

34 T480s User Guide

Removing an SD card or a smart card

Attention:

• Stop all the activities involving the card before removing it. Otherwise, data on the card might get

damaged or lost.

• While transferring data to or from an SD card or a smart card, do not put your computer into sleep or

hibernation mode before the data transfer is completed; otherwise, your data might get damaged.

• Do not remove a card while the computer is in sleep mode or hibernation mode. Otherwise, the system

might not respond when you try to resume operation.

To remove a card, do the following:

1. Click the triangular icon in the Windows notification area to show hidden icons. Then, right-click the

Safely Remove Hardware and Eject Media icon.

2. Select the corresponding item to eject the card from the Windows operating system.

3. Press the card to eject it from your computer.

4. Remove the card and store it safely for future use.

Note: If you do not remove the card from your computer after you eject the card from the Windows

operating system, the card can no longer be accessed. To access the card, you must remove it first, and

then insert it again.

Using an external display

This section provides instructions on how to connect an external display, choose display modes, and change

display settings.

You can use an external display such as a projector or a monitor to give presentations or to expand your

workspace.

Your computer supports the following video resolution, if the external display also supports that resolution.

• Up to 4096 x 2304 pixels / 60 Hz, with an external display connected to the USB-C connector or the USB-

C (Thunderbolt 3 compatible) connector

• Up to 4096 x 2160 pixels / 30 Hz, with an external display connected to the HDMI connector

For more information about the external display, see the manuals that come with it.

Connecting an external display

You can use either a wired display or a wireless display. A wired display can be connected to a video

connector such as the HDMI connector or the USB-C connector by a cable. The wireless display can be

added through the Miracast® function.

• Connecting a wired display

Note: When you connect an external monitor, a video interface cable with a ferrite core is required.

1. Connect the external display to an appropriate video connector on your computer, such as the HDMI

connector or the USB-C connector.

2. Connect the external display to an electrical outlet.

3. Turn on the external display.

If your computer cannot detect the external display, right-click on the desktop, and then click Screen

resolution/Display settings ➙ Detect.

Chapter 2.Using your computer 35

Do not connect external displays to the USB-C connector 1 and the HDMI connector 2 at the same time.

Otherwise, only the external display connected to the USB-C connector 1 will work by default. To change

the priority between the USB-C connector and the HDMI connector, start the ThinkPad Setup program

(see “Configuring ThinkPad Setup” on page 63), and then configure the Shared Display Priority in

“Config menu” on page 65.

• Connecting a wireless display

Note: To use a wireless display, ensure that both your computer and the external display support the

Miracast feature.

Do one of the following:

– Open the Start menu, and then click Settings ➙ Devices ➙ Bluetooth & other devices ➙ Add

Bluetooth or other device. In the Add a device window, click Wireless display or dock. Then, follow

the instructions on the screen.

– Click the action center icon in the Windows notification area. Click Connect. Select the wireless

display and follow the instructions on the screen.

For more information, see the Windows help information system.

Choosing a display mode

You can display your desktop and apps on the computer display, the external display, or both. To choose

how to display the video output, press the display-mode switching key and then select a display mode

you prefer.

There are four display modes:

• PC screen only: Displays the video output only on your computer screen.

Note: Depending on the situation, you might see Disconnect, PC screen only, Computer only, or

Disconnect projector.

• Duplicate: Displays the same video output on both your computer screen and an external display.

• Extend: Extends the video output from your computer display to an external display. You can drag and

move items between the two displays.

• Second screen only: Shows the video output only on an external display.

Note: Depending on the situation, you might see Projector only or Second screen only.

If you show programs using DirectDraw or Direct3D® in full-screen mode, only the main display shows the

video output.

Changing display settings

You can change the settings for both the computer display and the external display. For example, you can

define which one is the main display and which one is the secondary display. You also can change the

resolution and orientation.

36 T480s User Guide

To change display settings, do the following:

1. Right-click on the desktop and select Display settings.

2. Select the display that you want to configure.

3. Change display settings as you want.

Note: If you set a higher resolution for the computer display than the external display, only part of the screen

can be shown on the external display.

Traveling with your computer

This topic provides information to help you work with your computer when you are traveling.

Use the following travel tips to travel more confidently and efficiently with your computer.

• When your computer goes through the x-ray machines at airport security stations, it is important to keep

your eyes on the computer at all times to prevent theft.

• Consider bringing an electrical adapter for use on an airplane or automobile.

• If you carry an ac power adapter, detach the ac cord from it to avoid damaging the cord.

Travel tips on airplanes

If you carry your computer onto an airplane, observe the following tips:

• Be careful about the seat in front of you on airplanes. Angle your computer display so that it does not get

caught when the person in front of you leans back.

• When taking off, remember to turn off your computer or put it to hibernation mode.

• If you intend to use your computer or wireless services (such as Internet and Bluetooth), check with the

airline for restrictions and availability of services before boarding the airplane. If there are restrictions on

the use of computers with wireless features on the airplane, you must abide by those restrictions.

The Airplane mode is supported on the Windows 10 operating system. In the Airplane mode, all wireless

features are disabled.

To enable the Airplane mode, do the following:

1. Open the Start menu, and then click Settings ➙ Network & Internet ➙ Airplane mode.

2. Slide the Airplane mode control to turn it on.

Travel accessories

If you are traveling to another country or region, you might want to consider an appropriate ac power adapter

for the country or region to which you are traveling.

To purchase travel accessories, go to:

https://www.lenovo.com/accessories

Chapter 2.Using your computer 37

38 T480s User Guide

Chapter 3. Enhancing your computer

This chapter provides instructions on how to use hardware devices to expand your computer capabilities.

Finding ThinkPad options

If you want to expand the capabilities of your computer, Lenovo has a number of hardware accessories and

upgrades to meet your needs. Options include memory modules, storage devices, network cards, port

replicators or docking stations, batteries, power adapters, keyboards, mice, and more.

To shop at Lenovo, go to:

https://www.lenovo.com/accessories

ThinkPad Basic Docking Station, ThinkPad Pro Docking Station, and

ThinkPad Ultra Docking Station

This section introduces how to use the ThinkPad Basic Docking Station, ThinkPad Pro Docking Station, and

ThinkPad Ultra Docking Station.

Locating controls, connectors, and indicators

This section introduces the locations of controls, connectors, and indicators on the docking stations.

Note: When your computer is attached to the docking station, always use the Ethernet connector and the

external display connectors on the docking station. Do not use the ones on the computer.

Front view

Note: The following illustration is based on ThinkPad Basic Docking Station. The ThinkPad Pro Docking

Station and ThinkPad Ultra Docking Station might look slightly different.

1 System lock: Use the system lock in the following ways:

• When the system lock is in the locked position , the latch is locked, and you cannot attach or detach

your computer.

• When the system lock is in the unlocked position , the latch is unlocked, and you can attach or detach

your computer.

• When the system lock is in the unlocked position , you can remove the system lock from the system-

lock slot.

Note: The ThinkPad Basic Docking Station does not ship with a system lock installed. You can contact

Lenovo sales to purchase a system lock with the option part number 4XE0Q56388.

2 Key lock indicator: This indicator turns on when the system lock key is in the locked position.

3 Docking status indicator: This indicator turns on when your computer is successfully connected to the

docking station.

4 Power button: Press the power button to turn on or turn off the computer attached to the docking station.

5 Guide post: Use the guide post to help you position your computer properly when you attach the

computer to the docking station.

6 Docking-station connector: Connect the computer to the docking station.

7 Hooks: Hold and secure the computer to the docking station.

8 Latch: Slide the latch to attach or detach the computer.

Rear view

Figure 1. ThinkPad Basic Docking Station

Figure 2. ThinkPad Pro Docking Station

Figure 3. ThinkPad Ultra Docking Station

40 T480s User Guide

1 Audio connector: Connect headphones or a headset with a 3.5-mm (0.14-inch), 4-pole plug.

2 ac power connector: Connect the ac power adapter.

3 DisplayPort® connector: Connect a high-performance monitor, a direct-drive monitor, or other devices

that use a DisplayPort connector.

4 VGA connector: Connect the computer to a VGA-compatible video device, such as a VGA monitor.

5 USB 2.0 connector, 7 USB 3.1 connector Gen 1: Connect USB-compatible devices, such as a USB

keyboard, a USB mouse, a USB storage device, or a USB printer.

6 Always On USB 3.1 connector Gen 1, 12 Always on USB 3.1 connector Gen 2: Connect USB-

compatible devices and charge some mobile digital devices and smartphones when your computer is in

sleep or hibernation mode.

8 Ethernet connector: Connect the docking station to an Ethernet LAN.

9 Security-lock slot: Lock your docking station to a desk, table, or other non-permanent fixture to protect

your docking station from theft. Use a security cable lock that fits this security-lock slot.

10 USB-C connector: Use this connector to transfer data or charge your external device.

11 HDMI connector: Connect a compatible digital audio device or video monitor, such as an HDTV.

13 USB 3.1 connector Gen 2: With greater data transfer rate, the USB 3.1 connector Gen 2 is used to

connect USB-compatible devices, such as a USB keyboard, a USB mouse, a USB storage device, or a USB

printer.

Attaching your computer to a docking station

Notes:

• The ThinkPad Basic Docking Station does not ship with a system lock installed. If you do not purchase

and install a system lock, skip step 4 and step 7 in the following instruction to attach your computer to the

ThinkPad Basic Docking Station.

• If you attach the computer to the docking station, but do not connect the docking station to ac power,

your computer consumes battery power.

To attach your computer to a docking station, do the following:

1. Connect the docking station to ac power.

2. Disconnect the cables and devices from the left side of the computer.

Chapter 3.Enhancing your computer 41

3. Remove the connector cap (available on some models) as shown.

4. Ensure that you turn the system lock key to the unlocked position ( ).

42 T480s User Guide

5. Align the top-left corner of the computer with the guide post of the docking station. Attach your

computer to the docking station as shown 1 until you hear a click. Slide the latch in the direction as

shown 2.

6. Check the docking status indicator. The docking status indicator turns on when the computer is

successfully docked.

Note: If the indicator is off, your computer is not attached to the docking station successfully. To solve

the problem, detach and reattach the computer.

7. Turn the system lock key to the locked position ( ).

Attention: When the computer is attached to a docking station, do not pick up the assembly by taking hold

of the computer only. Always hold the whole assembly. Otherwise the docking station might drop down.

Detaching your computer from a docking station

To detach your computer from a docking station, do the following:

Chapter 3.Enhancing your computer 43

Note: The ThinkPad Basic Docking Station does not ship with a system lock installed. If you do not

purchase and install a system lock, skip step 1 in the following instruction to detach your computer from the

ThinkPad Basic Docking Station.

1. Turn the system lock key to the unlocked position ( ).

2. Slide the latch in the direction as shown 1 to release the computer, and then grasp both sides of the

computer to remove it 2.

Guidelines on connecting multiple external displays

You can connect multiple external displays to a supported ThinkPad docking station. To ensure that the

multiple displays work correctly, observe the following guidelines and connect the external displays to the

appropriate connectors.

44 T480s User Guide

ThinkPad Basic Docking Station

Up to two external displays connected to the DisplayPort and the VGA connectors can work at the same

time.

ThinkPad Pro Docking Station

Up to two external displays connected to the two DisplayPort connectors can work at the same time.

ThinkPad Ultra Docking Station

Up to three external displays connected to the docking station can work at the same time.

Chapter 3.Enhancing your computer 45

46 T480s User Guide

Chapter 4. Accessibility, ergonomic, and maintenance

information

This chapter provides information about accessibility, ergonomic, and cleaning and maintenance.

Accessibility information

Lenovo is committed to providing users who have hearing, vision, and mobility limitations with greater

access to information and technology. This section provides information about the ways these users can get

the most out of their computer experience. You also can get the most up-to-date accessibility information

from the following Web site:

https://www.lenovo.com/accessibility

Keyboard shortcuts

The following list contains keyboard shortcuts that can help make your computer easier to use.

Note: Depending on your keyboard, some of the following keyboard shortcuts might not be available.

• Windows logo key + U: Open Ease of Access Center

• Right Shift for eight seconds: Turn on or turn off Filter Keys

• Shift five times: Turn on or turn off Sticky Keys

• Num Lock for five seconds: Turn on or turn off Toggle Keys

• Left Alt+Left Shift+Num Lock: Turn on or turn off Mouse Keys

• Left Alt+Left Shift+PrtScn (or PrtSc): Turn on or turn off High Contrast

For more information, go to https://windows.microsoft.com/, and then search using any of the following

keywords: keyboard shortcuts, key combinations, shortcut keys.

Ease of Access Center

Ease of Access Center on the Windows operating system enables you to configure your computers to suit

their physical and cognitive needs.

To access Ease of Access Center, do the following:

1. Go to Control Panel, and ensure that you view Control Panel using Category.

2. Click Ease of Access ➙ Ease of Access Center.

3. Choose the appropriate tool by following the instructions on the screen.

Ease of Access Center mainly includes the following tools:

• Magnifier

Magnifier is a useful utility that enlarges the entire screen or part of the screen so that you can see the

items better.

• Narrator

Narrator is a screen reader that reads what is displayed on the screen aloud and describes events such as

error messages.

• On-Screen Keyboard

If you prefer to type or enter data into your computer using a mouse, joystick, or other pointing device

instead of a physical keyboard, you can use On-Screen Keyboard. On-Screen Keyboard displays a visual

keyboard with all the standard keys. You can select keys using the mouse or another pointing device, or

you can tap to select the keys if your computer supports multi-touch screen.

• High Contrast

High Contrast is a feature that heightens the color contrast of some text and images on your screen. As a

result, those items are more distinct and easier to identify.

• Personalized keyboard

Adjust keyboard settings to make your keyboard easier to use. For example, you can use your keyboard

to control the pointer and make the keyboard easier to type certain key combinations.

• Personalized mouse

Adjust mouse settings to make your mouse easier to use. For example, you can change the pointer

appearance and make your mouse easier to manage windows.

Speech Recognition

Speech Recognition enables you to control your computer by voice.

Using only your voice, you can start programs, open menus, click objects on the screen, dictate text into

documents, and write and send e-mails. Everything you do with the keyboard and mouse can be done with

only your voice.

To use Speech Recognition, do the following:

1. Go to Control Panel, and ensure that you view Control Panel by Category.

2. Click Ease of Access ➙ Speech Recognition.

3. Follow the instructions on the screen.

Screen-reader technologies

Screen-reader technologies are primarily focused on software program interfaces, help systems, and various

online documents. For additional information about screen readers, see the following:

• Using PDFs with screen readers:

https://www.adobe.com/accessibility.html?promoid=DJGVE

• Using the JAWS screen reader:

https://www.freedomscientific.com/Products/Blindness/JAWS

• Using the NVDA screen reader:

https://www.nvaccess.org/

Screen resolution

You can make the text and images on your screen easier to read by adjusting the screen resolution of your

computer.

To adjust the screen resolution, do the following:

1. Right-click an empty area of the desktop and then click Display settings ➙ Display.

2. Follow the instructions on the screen.

Note: Setting a resolution too low might prevent some items from fitting on the screen.

48 T480s User Guide

Customizable item size

You can make the items on your screen easier to read by changing the item size.

• To change the item size temporarily, use the Magnifier tool in Ease of Access Center.

• To change the item size permanently, do the following:

– Change the size of all the items on your screen.

1. Right-click an empty area of the desktop and then click Display settings ➙ Display.

2. Change the item size by following the instructions on the screen. For some applications, your

configuration might not take effect until you sign out and then sign in again.

– Change the size of the items on a Web page.

Press and hold Ctrl, and then press the plus-sign key (+) to enlarge or the minus-sign key (–) to reduce

the text size.

– Change the size of the items on the desktop or a window.

Note: This function might not work on some windows.

If your mouse has a wheel, press and hold Ctrl, and then scroll the wheel to change the item size.

Industry-standard connectors

Your computer provides industry-standard connectors that enable you to connect assistive devices.

Documentation in accessible formats

Lenovo provides electronic documentation in accessible formats, such as properly tagged PDF files or

HyperText Markup Language (HTML) files. Lenovo electronic documentation is developed to ensure that

visually impaired users can read the documentation through a screen reader. Each image in the

documentation also includes adequate alternative text so that visually impaired users can understand the

image when they use a screen reader.

Ergonomic information

Good ergonomic practice is important to get the most from your personal computer and to avoid discomfort.

Arrange your workplace and the equipment you use to suit your individual needs and the kind of work that

you perform. In addition, use healthy work habits to maximize your performance and comfort when using

your computer.

Working in the virtual office might mean adapting to frequent changes in your environment. Adapting to the

surrounding light sources, active seating, and the placement of your computer hardware, can help you

improve your performance and achieve greater comfort.

This example shows someone in a conventional setting. Even when not in such a setting, you can follow

many of these tips. Develop good habits, and they will serve you well.

Chapter 4.Accessibility, ergonomic, and maintenance information 49

General posture: Make minor modifications in your working posture to deter the onset of discomfort caused

by long periods of working in the same position. Frequent short breaks from your work also help to prevent

minor discomfort associated with your working posture.

Display: Position the display to maintain a comfortable viewing distance of 510 mm to 760 mm (20 inches to

30 inches). Avoid glare or reflections on the display from overhead lighting or outside sources of light. Keep

the display screen clean and set the brightness to levels that enable you to see the screen clearly. Press the

brightness control keys to adjust display brightness.

Head position: Keep your head and neck in a comfortable and neutral (vertical, or upright) position.

Chair: Use a chair that gives you good back support and seat height adjustment. Use chair adjustments to

best suit your comfort posture.

Arm and hand position: If available, use chair arm rests or an area on your working surface to provide

weight support for your arms. Keep your forearms, wrists, and hands in a relaxed and neutral (horizontal)

position. Type with a soft touch without pounding the keys.

Leg position: Keep your thighs parallel to the floor and your feet flat on the floor or on a footrest.

What if you are traveling?

It might not be possible to observe the best ergonomic practices when you are using your computer while on

the move or in a casual setting. Regardless of the setting, try to observe as many of the tips as possible.

Sitting properly and using adequate lighting, for example, helps you maintain desirable levels of comfort and

performance. If your work area is not in an office setting, ensure to take special note of employing active

sitting and taking work breaks. Many ThinkPad product solutions are available to help you modify and

expand your computer to best suit your needs. You can find some of these options at https://

www.lenovo.com/accessories. Explore your options for docking solutions and external products that provide

the adjustability and features that you want.

Questions about vision?

The visual display screens of ThinkPad notebook computers are designed to meet the highest standards.

These visual display screens provide you with clear, crisp images and large, bright displays that are easy to

see, yet easy on the eyes. Any concentrated and sustained visual activity can be tiring. If you have questions

on eye fatigue or visual discomfort, consult a vision-care specialist for advice.

Cleaning and maintenance

With appropriate care and maintenance your computer will serve you reliably. The following topics offer

information to help you keep your computer in top working order.

Basic maintenance tips

Here are some basic points about keeping your computer functioning properly:

• Store packing materials safely out of the reach of children to prevent the risk of suffocation from plastic

bags.

• Keep your computer away from magnets, activated cellular phones, electrical appliances, or speakers

(more than 13 cm or 5 inches).

• Avoid subjecting your computer to extreme temperatures (below 5°C/41°F or above 35°C/95°F).

• Avoid placing any objects (including paper) between the display and the keyboard or the palm rest.

• Your computer display is designed to be opened and used at an angle slightly greater than 90 degrees. Do

not open the display beyond 180 degrees. Otherwise, the computer hinge might get damaged.

50 T480s User Guide

• Do not turn your computer over when the ac power adapter is plugged in, otherwise, it could break the

adapter plug.

• Before moving your computer, be sure to remove any media, turn off attached devices, and disconnect

cords and cables.

• When picking up your open computer, hold it by the bottom. Do not pick up or hold your computer by the

display.

• Only an authorized ThinkPad repair technician should disassemble and repair your computer.

• Do not modify or tape the latches to keep the display open or closed.

• Avoid directly exposing your computer and peripherals to the air from an appliance that can produce

negative ions. Wherever possible, ground your computer to facilitate safe electrostatic discharge.

Cleaning your computer

It is a good practice to clean your computer periodically to protect the surfaces and ensure trouble-free

operation.

Cleaning the computer cover: Wipe it with a lint-free cloth dampened in mild soap and water. Avoid

applying liquids directly to the cover.

Cleaning the keyboard: Wipe the keys one by one with a lint-free cloth dampened in mild soap and water. If

you wipe several keys at a time, the cloth might hook onto an adjacent key and possibly damage it. Avoid

spraying cleaner directly onto the keyboard. To remove any crumbs or dust from beneath the keys, you can

use a camera blower with a brush or use cool air from a hair dryer.

Cleaning the computer screen: Scratches, oil, dust, chemicals, and ultraviolet light can affect the

performance of your computer screen. Use a dry, soft lint-free cloth to wipe the screen gently. If you see a

scratchlike mark on your screen, it might be a stain. Wipe or dust the stain gently with a soft, dry cloth. If the

stain remains, moisten a soft, lint-free cloth with water or eyeglass cleaner, but do not apply liquids directly

to your computer screen. Ensure that the computer screen is dry before closing it.

Chapter 4.Accessibility, ergonomic, and maintenance information 51

52 T480s User Guide

Chapter 5. Security

This chapter provides information about how to protect your computer from unauthorized use.

Using passwords

This topic provides information about how to use the power-on password, supervisor password, and hard

disk password.

Passwords introduction

You can help prevent your computer from unauthorized use by using passwords. After you set a password, a

prompt is displayed on the screen each time you turn on the computer. Enter your password at the prompt.

You cannot use the computer unless you type the correct password.

If you have set a power-on password, a supervisor password, or a hard disk password, it unlocks

automatically when the computer resumes from sleep mode.

Note: If a Windows password has been set, you are prompted to enter it when the computer resumes from

sleep mode.

Power-on password

You can set a power-on password to help protect your computer against unauthorized access.

If you set a power-on password, the password prompt is displayed on the screen whenever you turn on the

computer. You must enter the correct password to start using the computer.

When this icon is displayed, type a power-on password or a supervisor password.

Supervisor password

The supervisor password protects the system information stored in the ThinkPad Setup program. It provides

the following security features:

• If only a supervisor password is set, a password prompt is displayed when you try to start the ThinkPad

Setup program. Unauthorized users cannot change most of the system configuration options in the

ThinkPad Setup program without the password.

• The system administrator can use the supervisor password to access a computer even if the user of that

computer has set a power-on password. The supervisor password overrides the power-on password.

• The system administrator can set the same supervisor password on many ThinkPad notebook computers

to make administration easier.

Hard disk passwords

Setting a hard disk password prevents unauthorized access to the data on the hard disk drive. When a hard

disk password is set, you are prompted to type a valid password each time you try to access the hard disk

drive.

The following two types of hard disk passwords can help protect the information stored on the storage drive:

• User hard disk password

If a user hard disk password has been set, but no master hard disk password has been set, the user must

enter the user hard disk password to access files and applications on the storage drive.

• Master hard disk password

The master hard disk password also requires a user hard disk password. The master hard disk password

is set and used by a system administrator. It enables the administrator to access any storage drive in a

system like a master key. The administrator sets the master password; then assign a user password for

each computer in the network. The user can then change the user password as desired, but the

administrator still can get access by using the master password.

When a master hard disk password is set, only the administrator can remove the user hard disk password.

When this icon is displayed, type a user hard disk password. To type a master hard disk password,

press F1. When the icon changes to , type the master hard disk password. To return to the icon

, press F1 again.

Tips on using the hard disk passwords:

• You can set the minimum length of a hard disk password.

• If you set a hard disk password of over seven characters, the storage drive can be used only with a

computer that can recognize a hard disk password of over seven characters. If you then install the storage

drive in a computer that cannot recognize a hard disk password that contains more than seven

characters, you cannot access the drive.

• Record your password and store it in a safe place. If you forget the user hard disk password, or both user

and master hard disk passwords, Lenovo cannot reset your passwords or recover data from the storage

drive. You must take your computer to a Lenovo reseller or a marketing representative to have the storage

drive replaced. Proof of purchase is required, and a fee will be charged for parts and service.

Notes: The eDrive storage drives or Trusted Computing Group (TCG) Opal-compliant storage drives provide

self-encryption capabilities to secure your data.

• If a TCG Opal-compliant storage drive and a TCG Opal management software program are installed, and

the TCG Opal management software program is activated, the hard disk password is not available.

• If an eDrive storage drive is installed in your computer, and your computer is preinstalled with the

Windows 10 operating system, the hard disk password is not available.

Setting, changing, or removing a password

Before you start, print these instructions.

To set, change, or remove a password, do the following:

1. Restart the computer. When the logo screen is displayed, press F1 to start the ThinkPad Setup program.

2. Select Security ➙ Password by using the directional keys.

3. Depending on the password type, select Power-on Password, Supervisor Password, or Hard disk x

Password.

4. Follow the instructions on the screen to set, change, or remove a password.

You might want to record your password and store it in a safe place. Otherwise, if you forget the password,

you have to take your computer to a Lenovo reseller or a marketing representative to have the password

canceled.

54 T480s User Guide

Hard disk security

To protect the computer from unauthorized security attacks, refer to the following tips to enhance security:

• Set a power-on password as well as a hard disk password. For security, a longer password is

recommended.

• The hard disk drive built into your computer can be protected by UEFI BIOS. To provide reliable security,

use the security chip and a security program with the Trusted Platform Module (TPM) management

feature. See “Setting the security chip” on page 55.

• If a Disk Encryption storage drive is installed in your computer, ensure to protect the contents of your

computer from unauthorized access by use of drive encryption software, such as Microsoft Windows

BitLocker® Drive Encryption.

• Before you dispose of, sell, or hand over your computer, delete the data stored on it. For more

information, see “Deleting data from your storage drive” on page 58.

Using Windows BitLocker Drive Encryption

To help protect your computer against unauthorized access, use the drive encryption software, such as

Windows BitLocker Drive Encryption.

Windows BitLocker Drive Encryption (referred to as BitLocker) is an integral security feature of some editions

of the Windows operating system. It can help you protect the operating system and data stored on your

computer, even if your computer is lost or stolen. BitLocker can encrypt all user and system files, including

the swap and hibernation files.

BitLocker uses the TPM to provide enhanced protection for your data and to ensure early boot component

integrity. A compatible TPM is defined as a V2.0 TPM.

To check the BitLocker status, go to Control Panel, view Control Panel by Category, and click System and

Security ➙ BitLocker Drive Encryption.

For more information, see the help system of the Windows operating system, or search for “Microsoft

Windows BitLocker Drive Encryption Step-by-Step Guide” on the Microsoft Web site.

Disk Encryption hard disk drive and Encryption solid-state drive

Some models contain the Disk Encryption hard disk drive, Encryption solid-state drive, or Encryption hybrid

drive. This encryption technology helps to protect your computer against security attacks on media, NAND

flash, or device controllers by use of a hardware encryption chip. For the efficient use of the encryption

feature, set a hard disk password for the internal storage drive.

Setting the security chip

Strict security requirements are imposed on network client computers that transfer confidential information

electronically. Depending on the options you ordered, your computer might have an embedded security chip

(a cryptographic microprocessor). With the security chip, you can do the following:

• Protect your data and system

• Strengthen access controls

• Secure communications

Before you start, print these instructions.

To set an item on the Security Chip submenu, do the following:

Chapter 5.Security 55

1. Restart the computer. When the logo screen is displayed, press F1 to start the ThinkPad Setup program.

2. Select Security ➙ Security Chip by using the directional keys.

3. Press Enter. The Security Chip submenu opens.

4. Move to an item you want to set by using the directional keys. When the item is highlighted, press Enter.

5. Set other items that you want to set.

6. Press F10. A Setup Confirmation window is displayed. Select Yes to save the configuration changes and

exit.

Notes:

• Ensure that the supervisor password has been set in ThinkPad Setup. Otherwise anyone can change the

settings for the security chip.

• When you clear the security chip, turn off your computer and then turn it on again after you set the security

chip to Active. Otherwise, the Clear Security Chip option is not displayed.

Using the fingerprint reader

Depending on the model, your computer might have a fingerprint reader. Fingerprint authentication can

replace your passwords, such as the Windows password, power-on password, and hard disk password. In

this way, you can log in to your computer simply and securely.

Enrolling your fingerprints

To enable fingerprint authentication, enroll your fingerprints first. During the enrollment, the fingerprints are

associated with the Windows password automatically. It is recommended that you enroll more than one

fingerprint in case of any injuries to your fingers.

To enroll your fingerprints, do the following:

1. Open the Start menu and then click Settings ➙ Accounts ➙ Sign-in options.

2. Follow the instructions on the screen to finish the enrollment.

Scanning your finger

To scan your finger, tap the fingerprint reader with the top joint of your finger and hold your finger there for

one or two seconds with a little pressure. Then lift the finger to complete one scan.

56 T480s User Guide

Fingerprint reader indicator

1 Off: The fingerprint reader is not ready for tapping.

2 Solid white: The fingerprint reader is ready for tapping.

3 Amber, blinking: The fingerprint cannot be authenticated.

Associating your fingerprints with your power-on password and hard disk password

To associate your fingerprints with your power-on password and hard disk password, manually create a

connection by doing the following:

1. Turn off and then turn on the computer.

2. When prompted, scan your finger on the fingerprint reader.

3. Enter your power-on password, hard disk password, or both as required. The connection is created.

When you start the computer again, you can use your fingerprints to log in to the computer with no need to

enter your Windows password, power-on password, and hard disk password. To change the settings, go to

the ThinkPad Setup program. See “Using the ThinkPad Setup program” on page 63.

Attention: If you always use your fingerprint to log in to the computer, you might forget your passwords.

Write down your passwords, and keep them in a safe place. If you forget your power-on password, you must

take your computer to a Lenovo-authorized servicer or a marketing representative to have the password

canceled. If you forget your hard disk password, Lenovo cannot reset your password or recover data from

the storage drive. You must take your computer to a Lenovo-authorized servicer or a marketing

representative to have the storage drive replaced. Proof of purchase is required, and a fee will be charged for

parts and service.

Maintaining the fingerprint reader

The following actions could damage the fingerprint reader or cause it not to work correctly:

• Scratching the surface of the reader with a hard, pointed object

• Scraping the surface of the reader with your fingernail or anything hard

• Using or touching the reader with a dirty finger

If you notice any of the following conditions, gently clean the surface of the reader with a dry, soft, lint-free

cloth:

• The surface of the reader is dirty or stained.

• The surface of the reader is wet.

• The reader often fails to enroll or authenticate your fingerprint.

Chapter 5.Security 57

If your finger has any of the following conditions, you might not be able to register or authenticate it:

• Your finger is wrinkled.

• Your finger is rough, dry, or injured.

• Your finger is stained with dirt, mud, or oil.

• The surface of your finger is different from the one when you enrolled your fingerprint.

• Your finger is wet.

• Your finger that you are currently using has not been enrolled before.

To improve the situation, try the following:

• Clean or wipe your hands to remove any excess dirt or moisture from the fingers.

• Enroll and use a different finger for authentication.

Deleting data from your storage drive

Some of the data stored on the storage drive might be sensitive. Handing your computer over to someone

else without deleting the installed software, such as operating systems and programs, might even violate the

license agreements. Be sure to delete data stored on the storage drive before you dispose of, sell, or hand

over your computer.

You can use the following methods to delete data from the storage drive:

• Move the data to the Recycle Bin, and then empty the Recycle Bin.

• Format your storage drive, using the software to initialize it.

• Use the recovery program provided by Lenovo to bring the storage drive back to the factory default

settings.

These operations, however, only change the file location of the data; they do not delete the data itself. The

data is still there, even though it seems to be lost. Thus, it is sometimes possible to read the data by use of

special software for data recovery. There is a risk that people of bad faith might read and misuse the critical

data on storage drives for unexpected purposes.

To prevent leakage of data, it is important that you delete all the data from the hard disk drive when you

dispose of, sell, or hand over your computer. You can destroy the data physically by smashing the hard disk

drive with a hammer, or magnetically by means of strong magnetic power, thus making the data unreadable.

But it is recommended that you use the software (payware) or service (pay service) developed for that

purpose. The process might take several hours.

For disposing of data on the solid-state drive, Lenovo provides the Drive Erase Utility for Resetting the

Cryptographic Key and Erasing the Solid State Drive tool.

Some computers might support a Disk Encryption hard disk drive or Encryption solid-state drive and have

such a drive installed. You can logically dispose of all the data on the drive in a short time by erasing the

cryptographic key. The data encrypted with the old key is not physically erased but remains on the drive;

however, it cannot be decrypted without the old key. This feature is also available with the Drive Erase Utility

for Resetting the Cryptographic Key and Erasing the Solid State Drive tool.

Using firewalls

If your system is preinstalled with a firewall program, it protects against computer Internet security threats,

unauthorized access, intrusions, and Internet attacks. It also protects your privacy.

58 T480s User Guide

For more information about how to use the firewall program, see the help system that comes with the

program.

Protecting data against viruses

Lenovo provides a full version of antivirus software on your computer with a free 30-day subscription. After

30 days, you must renew the license to continue receiving the antivirus software updates.

For more information about your antivirus software, see the help system of your antivirus software.

Chapter 5.Security 59

60 T480s User Guide

Chapter 6. Advanced configuration

This chapter provides information to help you further configure the computer:

Installing a Windows 10 operating system

Microsoft constantly makes updates to the Windows 10 operating system. Before installing a particular

Windows 10 operating system, check the compatibility list of the Windows versions supported on the your

computer. For details, go to https://support.lenovo.com/us/en/solutions/windows-support.

Attention:

• It is recommended that you update your operating system through official channels. Any unofficial update

might cause security risks.

• The process of installing a new operating system deletes all the data on your internal storage drive,

including the data that were stored in a hidden folder.

To install a Windows 10 operating system, do the following:

1. Ensure that you set the security chip to TPM 2.0. For more information, see “Setting the security chip”

on page 55.

2. Connect the drive that contains the operating system installation program to the computer.

3. Start the ThinkPad Setup program. See “Using the ThinkPad Setup program” on page 63.

4. Select Startup ➙ Boot to display the Boot Priority Order submenu.

5. Select the drive that contains the operating system installation program, for example, USB HDD. Then

press Esc.

6. Select Restart and ensure that OS Optimized Defaults is enabled. Then press F10 to save the settings

and exit the ThinkPad Setup program.

7. Follow the on-screen instructions to install the device drivers and necessary programs. See “Installing

device drivers” on page 62.

8. After installing the device drivers, apply Windows Update to get the latest modules, for example the

security patches.

9. Depending on your preference, install Lenovo programs. For information about Lenovo programs, see

“Lenovo programs” on page 14.

Note: After installing the operating system, do not change the initial UEFI/Legacy Boot setting in the

ThinkPad Setup program. Otherwise, the operating system will not start correctly.

When you install a Windows 10 operating system, you might need one of the following country or region

codes:

Country or region Code Country or region Code

Mainland China SC Netherlands NL

Denmark DK Norway NO

Finland FI Spain SP

France FR Sweden SV

Germany GR Taiwan and Hong Kong TC

Country or region Code Country or region Code

Italy IT United States US

Japan JP

Installing device drivers

Device drivers are programs that contain instructions for the operating system about how to operate or

“drive” a certain piece of hardware. Each hardware component on your computer has its own specific driver.

If you add a component, the operating system must be instructed on how to operate that piece of hardware.

After you install the driver, the operating system can recognize the hardware component and understand

how to use it.

Note: Because drivers are programs, like any other file on your computer, they are susceptible to corruption

and might not perform properly if corruption occurs.

It is not always necessary to download the latest drivers. However, you should download the latest driver for

a component when you notice poor performance from that component or when you added a component.

This action might eliminate the driver as the potential cause of a problem.

Getting the latest drivers from the Web site

You can download and install updated device drivers from the Lenovo Support Web site by doing the

following:

1. Go to https://support.lenovo.com.

2. Select the entry for your computer and then follow the instructions on the screen to download and install

necessary software.

Getting the latest drivers using Lenovo Vantage

The system update function of Lenovo Vantage helps you keep the software on your computer up-to-date.

Update packages are stored on Lenovo servers and can be downloaded from the Lenovo Support Web site.

Update packages can contain applications, device drivers, UEFI BIOS flashes, or software updates. When

Lenovo Vantage connects to the Lenovo Support Web site, the program automatically recognizes the

following information and determines what updates are available for your computer:

• Machine type and model of your computer

• Installed operating system

• Language of the operating system

Lenovo Vantage then displays a list of update packages and categorizes each update as critical,

recommended, or optional to help you understand the importance. You have complete control of which

updates to download and install. After you select the update packages you want, Lenovo Vantage

automatically downloads and installs the updates.

Lenovo Vantage is preinstalled on your computer and is ready to run. The only prerequisite is an active

Internet connection. You can start the program manually, or you can use the schedule feature to enable the

program to search for updates automatically at specified intervals. You also can predefine scheduled

updates to search by the critical severity level so the list you choose from contains only those update types

that you need.

For more information about how to use Lenovo Vantage, see the help system of the program.

62 T480s User Guide

Using the ThinkPad Setup program

The ThinkPad Setup program enables you to select the preferred settings for your computer through

configuring the BIOS.

Configuring ThinkPad Setup

The ThinkPad Setup program menu lists various items about system configuration.

Attention: The default configurations are already optimized for you. Improper change of the configurations

might cause unexpected results.

To configure ThinkPad Setup, do the following:

1. Restart the computer. When the logo screen is displayed, press F1. The ThinkPad Setup program starts.

Note: If you are required to enter the supervisor password, enter the correct password. You also can

press Enter to skip the password prompt and start the ThinkPad Setup program. If you do not enter the

password, you cannot change the configurations that are protected by the supervisor password.

2. Use the arrow keys to select a tab; or use the arrow keys to locate an item and press Enter to select it.

Then the supported submenu is displayed.

3. Default values are in boldface. Set the value of an item by doing one of the following:

• Press F6 to change to a higher value.

• Press F5 to change to a lower value.

4. Press the Esc key to exit the submenu and return to the parent menu. Then use the same method

mentioned above to change other configurations.

5. When you complete the configuration, press F10 to save and exit. You also can select the Restart tab in

the ThinkPad Setup menu, and restart your computer with one of the provided options.

You can press F9 to restore to the default settings.

Changing the startup sequence

In some cases, you might have to change the startup sequence so that the computer starts from a desired

device when powered on. Read this topic to learn how to change the computer startup sequence.

Attention:

• After you change the startup sequence, ensure that you select the correct device during a copy, a save, or

a format operation. If you select the wrong device, the data on that device might be erased or overwritten.

• If you are using the Windows BitLocker Drive Encryption feature and your computer has a Trusted

Platform Module, do not change the startup sequence. BitLocker Drive Encryption locks the computer

when it detects the change of startup sequence.

To change the startup sequence, do the following:

1. Access the ThinkPad Setup program and select Startup ➙ Boot. Then press Enter. The default device

order list is displayed.

2. Set the startup sequence as you desired.

3. Press F10 to save the changes and restart the system.

You also can change the startup sequence temporarily by doing the following:

1. Turn off the computer.

Chapter 6.Advanced configuration 63

2. Turn on the computer. When the logo screen is displayed, press the F12 key.

3. Select the device that you want the computer to start from. Then press Enter.

Note: The Boot menu will be displayed if the computer cannot start from any devices or the operating

system cannot be found.

Updating the UEFI BIOS

The UEFI BIOS is the first program that the computer runs when the computer is turned on. The UEFI BIOS

initializes the hardware components, and loads the operating system and other programs.

When you install a new program, device driver, or hardware component, you might be informed to update

the UEFI BIOS. You can update the UEFI BIOS by starting your computer from a flash update disc or a flash

update program running in the Windows environment.

The requirements for flash update are as follows:

• The computer must be started over LAN.

• The computer must be engaged in the Preboot eXecution Environment (PXE).

• A network-management program must be installed on the computer of the network administrator.

For instructions on how to update the UEFI BIOS, go to https://support.lenovo.com.

BIOS menu

This topic introduces the following BIOS menus of your computer:

• Main menu

• Config menu

• Date/Time menu

• Security menu

• Startup menu

• Restart menu

Note: Depending on the model and operating system, the menu items and the default value might change

without notice.

Main menu

When you enter the ThinkPad Setup program, you first see the Main menu as follows:

Note: The BIOS menu items might change without notice. Depending on the model, the default value might

vary.

• UEFI BIOS Version

• UEFI BIOS Date

• Embedded Controller Version

• ME Firmware Version

• Machine Type Model

• System-unit serial number

• System board serial number

• Asset Tag

64 T480s User Guide

• CPU Type

• CPU Speed

• Installed memory

• UUID

• MAC Address (Internal LAN)

• UEFI Secure Boot

• OA2

Config menu

Note: The BIOS menu items might change without notice. Depending on the model, the default value might

vary.

Network

• Wake On LAN

Values: Disabled, AC only, AC and Battery

Description: The network administrator can turn on a computer from a management console by using the

Wake On LAN feature. If you select AC Only, the Wake On LAN feature is enabled only when the ac power

adapter is attached. If you select AC and Battery, the Wake On LAN feature is enabled with any power

sources.

Notes:

– The magic packet type Wake On LAN requires that the ac power is attached.

– The Wake On LAN feature does not work when the hard disk password is set.

• Wake On LAN from Dock

Values: Disabled, Enabled

Description: Enable or disable the Wake On LAN from Dock feature when the ThinkPad USB-C Dock or

ThinkPad Thunderbolt 3 Dock is attached.

Note: The Wake on LAN from Dock feature does not work when the hard disk password is set.

• UEFI IPv4 Network Stack

Values: Disabled, Enabled

Description: Enable or disable Internet Protocol Version 4 (IPv4) network stack for UEFI environment. This

menu is displayed only in UEFI Only boot mode or Both boot mode with UEFI first.

• UEFI IPv6 Network Stack

Values: Disabled, Enabled

Description: Enable or disable Internet Protocol Version 6 (IPv6) network stack for UEFI environment. This

menu is displayed only in UEFI Only boot mode or Both boot mode with UEFI first.

• UEFI PXE Boot Priority

Values: IPv6 First, IPv4 First

Description: Select network stack priority for UEFI PXE boot. This menu is displayed only in UEFI Only

boot mode or Both boot mode with UEFI first, when IPv6 and IPv4 stacks are both enabled.

• Wireless Auto Disconnection

Values: Disabled, Enabled

Description: Enable or disable the wireless automatic disconnection function when the Ethernet cable is

attached. If you select Enabled, the Wireless LAN function is automatically turned off when the Ethernet

cable is connected.

Chapter 6.Advanced configuration 65

Note: Ethernet connection by the USB Ethernet adapter is not supported by this feature.

• MAC Address Pass Through

Values: Disabled, Enabled

Description: Enable or disable the MAC Address Pass Through function when a dock is attached. If you

select Enabled, the dock Ethernet will use the same MAC address as the internal Ethernet LAN. If you

select Disabled, the dock Ethernet uses its own MAC address.

USB

• USB UEFI BIOS Support

Values: Disabled, Enabled

Description: Enable or disable the boot support for USB storage devices.

• Always On USB

Values: Disabled, Enabled

Description: Select Enabled to charge devices through the Always On USB connectors even when the

computer is turned off, in sleep mode, or in hibernation mode.

– Charge in Battery Mode

Values: Disabled, Enabled

Description: This option is supported only when Always On USB is enabled. Select Enabled to charge

devices through the Always On USB connector even when the computer is in hibernation mode, or

powered off and in battery mode.

Keyboard/Mouse

• TrackPoint

Values: Disabled, Enabled

Description: Enable or disable the built-in TrackPoint pointing device.

• Trackpad

Values: Disabled, Enabled

Description: Enable or disable the built-in trackpad.

• Fn and Ctrl Key swap

Values: Disabled, Enabled

Description: Exchange functions of the Fn key and the Ctrl key at the bottom left corner of the keyboard. If

you select Enabled, the Fn key works as the Ctrl key and the Ctrl key works as the Fn key.

Note: Only the physical Fn key can wake up the system from sleep mode.

• Fn Sticky key

Values: Disabled, Enabled

Description: If you select Enabled, you can press (instead of press and hold) the Fn key to keep it in a

pressed condition. Then press the desired function key. The action is equivalent to pressing the function

key simultaneously with the Fn key. When you press the Fn key twice, the Fn key is locked in the pressed

condition until you press the Fn key again.

• F1–F12 as Primary Function

Values: Disabled, Enabled

Description: If you select Enabled, pressing the function keys directly inputs F1–F12. If you select

Disabled, pressing the function keys directly initiates the special function printed as an icon on each key.

To temporarily switch the above two functions, press Fn+Esc.

66 T480s User Guide

Display

• Boot Display Device

Values: ThinkPad LCD, External Display

Description: Select the display device that you want to activate at boot time. External Display refers to an

external display attached to the USB Type-C connector or HDMI connector on ThinkPad. If multiple

displays are attached, the boot screen appears on the first recognized one.

• Shared Display Priority

Values: HDMI, USB Type-C

Description: Select the priority between shared display outputs. The HDMI connector and the rear USB

Type-C connector share a single display output and the two connectors cannot be used simultaneously

for the external display. This option chooses which connector is prioritized for the external display.

• Total Graphics Memory

Values: 256 MB, 512 MB

Description: Allocate the total memory which Intel(R) internal graphics shares.

Note: If you select 512 MB, the maximum usable memory might be reduced on the 32–bit operating

system.

• Boot Time Extension

Values: Disabled, 1 second, 2 seconds, 3 seconds, 5 seconds, 10 seconds

Description: During the boot process, the computer might not detect the external monitors that need more

time to get ready. Select how long you want to extend the boot process.

Power

• Intel (R) SpeedStep technology

Values: Disabled, Enabled

Description: Select the mode of Intel SpeedStep technology at runtime.

– Mode for AC

Values: Maximum Performance, Battery Optimized

Description: Maximum Performance: Always the highest speed.

– Mode for Battery

Values: Maximum Performance, Battery Optimized

Description: Battery Optimized: Always the lowest speed.

• Adaptive Thermal Management

Description: Select a thermal management scheme to use. The scheme affects fan sound, temperature,

and performance.

– Scheme for AC

Values: Maximize Performance, Balanced

Description:

– Maximize Performance: Reduce CPU throttling.

– Balanced: Balance sound, temperature, and performance.

– Scheme for Battery

Values: Maximize Performance, Balanced

Description:

Chapter 6.Advanced configuration 67

– Balanced: Balance sound, temperature, and performance.

– Maximize Performance: Reduce CPU throttling.

• CPU Power Management

Values: Disabled, Enabled

Description: Enable or disable the power-saving feature that stops the microprocessor clock automatically

when there are no system activities. Normally, it is not necessary to change the setting.

• Power On with AC Attach

Values: Disabled, Enabled

Description: Enable or disable a feature that turns on the computer when the ac power adapter is

attached.

• 8254 Timer Clock Gating

Values: Auto, Disabled

Description: Select 8254 Timer Clock Gating setting. If you select Auto, 8254 Timer clock stops only when

the startup setting is set as UEFI Only and CSM Support is set as No. If you select Disabled, 8254 Timer

clock is running always.

• Disable Built-in Battery

Values: Yes, No

Description: Temporarily disable battery for servicing the system. After selecting this item, the system will

be automatically powered off, then ready to be serviced.

Note: The battery will be automatically enabled when the ac power adapter is reconnected.

Beep and Alarm

• Password Beep

Values: Disabled, Enabled

Description: Enable or disable a beep when the computer is waiting for a power-on, hard disk, or

supervisor password. Different beeps remind you that the password you entered is right or wrong.

• Keyboard Beep

Values: Enabled, Disabled

Description: Enable or disable a beep when unmanageable key combinations are pressed.

Thunderbolt(TM) 3

• Thunderbolt BIOS Assist Mode

Values: Disabled, Enabled

Description: Enable or disable the Thunderbolt BIOS Assist mode. If you select Enabled, Thunderbolt

ports are controlled by the BIOS instead of the operating system, power consumption is increased, and

wake from Modern Standby mode is disabled. You can only set to Enabled on the Linux and the Windows

10 (earlier than version 1709) operating systems.

• Wake by Thunderbolt(TM) 3

Values: Disabled, Enabled

Description: Enable or disable the wake-up function of the Thunderbolt(TM) 3 connector. If you select

Enabled, the battery life during the low power status might become shorter.

• Security Level

Values: No Security, User Authorization, Secure Connect, Display Port and USB

Description: Select the security level:

68 T480s User Guide

– No Security: Allow Thunderbolt devices to be connected automatically.

– User Authorization: Allow Thunderbolt devices to be connected after user authorization.

– Secure Connect: Allow Thunderbolt devices to be connected with a saved key that has been approved

by the user.

– Display Port and USB: Allow only Display outputs devices and USB devices to be connected.

Thunderbolt devices are not allowed to be connected.

• Support in Pre Boot Environment

– Thunderbolt(TM) device

Values: Disabled, Enabled

Descriptions: Enable or disable pre-OS support for Thunderbolt devices attached to the Thunderbolt 3

connector. To use a device in the pre-boot environment, authorize it in the operating system or set the

Security level to No Security. To boot from a device, configure it by selecting Startup ➙ Boot.

Intel(R) AMT

• Intel (R) AMT Control

Values: Disabled, Enabled, Permanently Disabled

Description: If you select Enabled, Intel AMT (Active Management Technology) is configured and

additional setup items are provided in MEBx (Management Engine BIOS Extension) Setup. If you select

Permanently Disabled, you can never enable it again. Be cautious when you make the selection.

Note: You can enter the MEBx Setup menu by pressing Ctrl+P in the Startup Interrupt Menu window. To

display the Startup Interrupt Menu window, press Enter during the power-on self-test (POST).

• USB Key Provisioning

Values: Disabled, Enabled

Description: This option enables or disables USB key provisioning.

• CIRA Timeout

Values: 0–255

Description: Set the time-out option for the CIRA connection to be established. Selectable values are from

0 to 255. If you select 0, use 60 seconds as the default time-out value. If you select 255, the waiting time

for establishing a connection is unlimited.

Note: The default value is 60 seconds.

• Console Type

Values: VT100, VT100+, VT-UTF8, PC-ANSI

Description: Select the console type for AMT. This console type must match the Intel AMT remote

console.

Date/Time menu

Note: The BIOS menu items might change without notice. Depending on the model, the default value might

vary.

• System Date

Description: Set or change the date of the system.

• System Time

Description: Set or change the time of the system.

Chapter 6.Advanced configuration 69

Security menu

Note: The BIOS menu items might change without notice. Depending on the model, the default value might

vary.

Password

• Supervisor Password

Values: Disabled, Enabled

Descriptions: Set a supervisor password to prevent unauthorized users from changing the startup

sequence, network-related settings, and system date and time. For more information, see “Passwords

introduction” on page 53.

• Lock UEFI BIOS Settings

Values: Disabled, Enabled

Descriptions: Enable this option to prevent unauthorized users from changing any settings in ThinkPad

Setup. To use this function, a supervisor password is required.

• Password at Unattended Boot

Values: Disabled, Enabled

Descriptions: When this option is enabled, a password prompt is displayed when the computer is turned

on or resumed from hibernation mode by an unattended event such as a Wake On LAN attempt. To

prevent unauthorized access, set the user authentication on the operating system.

• Password at Restart

Values: Disabled, Enabled

Descriptions: When this option is enabled, a password prompt is displayed when you restart the

computer. To prevent unauthorized access, set the user authentication on the operating system.

• Password at Boot Device List

Values: Disabled, Enabled

Descriptions: If you enable this option, the supervisor password is required when you try to enter the Boot

menu by repeatedly pressing F12. To use this function, a supervisor password must be set.

• Password Count Exceeded Error

Values: Disabled, Enabled

Descriptions: Enable this option to display the POST 0199 error message when you enter a wrong

supervisor password more than three times.

• Set Minimum Length

Values: Disabled, x characters (4 ≤ x ≤ 12)

Descriptions: Specify a minimum length for power-on passwords and hard disk passwords. If a supervisor

password is set, you cannot change the minimum length until you log in as a supervisor.

• Power-On Password

Values: Disabled, Enabled

Descriptions: Set a power-on password to protect the computer from unauthorized access. For more

information, see “Passwords introduction” on page 53.

• Hard Disk x Password

Values: Disabled, Enabled

Descriptions: Set a hard disk password to prevent unauthorized users from accessing data on the internal

storage drive. For more information, see “Passwords introduction” on page 53.

70 T480s User Guide

Fingerprint

• Predesktop Authentication

Values: Disabled, Enabled

Descriptions: Enable or disable fingerprint authentication before the operating system is loaded.

• Reader Priority

Values: External ➙ Internal, Internal Only

Descriptions: If your computer has an internal fingerprint reader and an attached external fingerprint

reader, use this option to specify the fingerprint reader priority.

• Security Mode

Values: Normal, High

Descriptions: If the fingerprint is not authenticated, you can enter a password instead. If you have selected

Normal, enter either the power-on password or the supervisor password; if you have selected High,

supervisor password must be entered.

• Reset Fingerprint Data

Value: Enter

Descriptions: Use this option to erase all fingerprint data stored in the fingerprint reader and reset the

settings to the factory default state. As a result, any power-on security features previously enabled will not

work until they are re-enabled in the fingerprint software.

Security Chip

• Security Chip Type

Values: TPM 2.0

Descriptions: You can use a discrete TPM chip with TPM 2.0 mode.

• Security Chip (for TPM 2.0)

Values: Enabled, Disabled

Descriptions: Enable or disable the security chip.

• Security Reporting Options

– SMBIOS Reporting

Values: Enabled, Disabled

Descriptions: When enabled, changes to corresponding UEFI BIOS data are logged in a location,

(PCR1, defined in the TCG standards), which other authorized programs can monitor, read and analyze.

• Clear Security Chip

Descriptions: Use this option to clear the encryption key. It will not be possible to access already-

encrypted data after these keys are cleared.

• Intel (R) TXT Feature

Values: Disabled, Enabled

Descriptions: Enable or disable the Intel(R) Trusted Execution Technology.

• Physical Presence for Clear

Values: Disabled, Enabled

Descriptions: If this option is enabled, a confirmation message is displayed when you clear the security

chip.

UEFI BIOS Update Option

• Flash BIOS Updating by End-Users

Chapter 6.Advanced configuration 71

Values: Disabled, Enabled

Descriptions: When this option is enabled, all users can update the UEFI BIOS. If you disable this option,

only the person who knows the supervisor password can update the UEFI BIOS.

• Secure RollBack Prevention

Values: Disabled, Enabled

Descriptions: When this option is disabled, you can flash the UEFI BIOS to earlier version.

Note: This item is set as Disabled by default when the OS Optimized Defaults on the Restart menu is

set as Disabled. This item is set as Enabled by default when the OS Optimized Defaults is set as

Enabled.

• Windows UEFI Firmware Update

Values: Enabled, Disabled

Descriptions: Enable or disable the Windows UEFI Firmware Update feature. Select Enabled to allow

Windows UEFI Firmware Update. If you select Disabled, BIOS will skip Windows UEFI Firmware Update.

Memory Protection

• Execution Prevention

Values: Disabled, Enabled

Descriptions: Some computer viruses and worms cause memory buffers to overflow. By enabling this

option, you can protect your computer against attacks from such viruses and worms. If the option is

enabled but you find that a program does not run properly, disable this option first and then reset the

settings.

Virtualization

• Intel(R) Virtualization Technology

Values: Disabled, Enabled

Descriptions: If this option is enabled, a Virtual Machine Monitor (VMM) can utilize the additional hardware

capabilities provided by Intel Virtualization Technology. This setting should be set to Disabled to prevent

security risks if operating system does not support a VMM.

Note: This item is set as Disabled by default when the OS Optimized Defaults on the Restart menu is

set as Disabled. This item is set as Enabled by default when the OS Optimized Defaults is set as

Enabled.

• Intel(R) VT-d Feature

Values: Disabled, Enabled

Descriptions: Intel VT-d stands for Intel Virtualization Technology for Directed I/O. When enabled, a VMM

can utilize the platform infrastructure for I/O virtualization. This setting should be set to Disabled to

prevent security risks if the operating system does not support a VMM.

Note: This item is set as Disabled by default when the OS Optimized Defaults on the Restart menu is

set as Disabled. This item is set as Enabled by default when the OS Optimized Defaults is set as

Enabled.

I/O Port Access

Descriptions: Use this submenu to enable or disable the following hardware features:

• Ethernet LAN

• Wireless LAN

• Wireless WAN

72 T480s User Guide

• Bluetooth

• USB Port

• Memory Card Slot

• Smart Card Slot

• Integrated Camera

• Microphone

• Fingerprint Reader

• Thunderbolt(TM) 3

• NFC Device

Internal Device Access

• Bottom Cover Tamper Detection

Values: Disabled, Enabled

Descriptions: When this option is enabled, supervisor password is required when a bottom cover tamper

is detected. This option is not functional until a supervisor password is set.

• Internal Storage Tamper Detection

Values: Disabled, Enabled

Descriptions: When this option is enabled, removing any internal storage device when your computer is in

sleep mode will be detected. If you remove the internal storage device while the computer is in sleep

mode, the computer will shut down when you wake it up, and any unsaved data will be lost.

Anti-Theft

• Computrace Module Activation

Values: Disabled, Enabled, Permanently Disabled

Descriptions: Enable the UEFI BIOS interface to activate the computrace module. Computrace is an

optional monitoring service from Absolute Software. If you select Permanently Disabled, you cannot

enable this setting again.

Secure Boot

• Secure Boot

Values: Disabled, Enabled

Descriptions: Enable this option to prevent unauthorized operating systems from loading when you turn

on the computer. To enable this option, set the startup setting as UEFI Only and set CSM Support as No

first.

Note: This item is set as Disabled by default when the OS Optimized Defaults on the Restart menu is

set as Disabled. This item is set as Enabled by default when the OS Optimized Defaults is set as

Enabled.

• Platform Mode

Values: Setup Mode, User Mode

Descriptions: Specify the system operating mode.

• Secure Boot Mode

Values: Standard Mode, Custom Mode

Descriptions: Specify the Secure Boot mode.

• Reset to Setup Mode

Chapter 6.Advanced configuration 73

Descriptions: Use this option to clear the current platform key and reset Platform Mode to Setup Mode.

You can install your own platform key and customize the Secure Boot signature databases in Setup

Mode. Secure Boot Mode will be set to Custom Mode.

• Restore Factory Keys

Descriptions: Use this option to restore all keys and certificates in Secure Boot databases to the factory

defaults.

• Clear All Secure Boot Keys

Descriptions: Use this option to clear all keys and certificates in Secure Boot databases and install your

own keys and certificates.

Intel (R) SGX

• Intel (R) SGX Control

Values: Disabled, Enabled, Software Controlled

Descriptions: Enable or disable the Intel(R) Software Guard Extensions (SGX) function. If you select

Software Controlled, SGX will be controlled by SGX application for UEFI boot operating system.

• Change Owner EPOCH

Descriptions: Change Owner EPOCH to a random value. Use this option to clear SGX user data.

Device Guard

• Device Guard

Values: Disabled, Enabled

Descriptions: This option is used to support Microsoft(R) Device Guard.

When this option is enabled, Intel(R) Virtualization Technology, Intel(R) VT-d Feature, Secure Boot, and OS

Optimized Defaults are automatically enabled. Boot order is not selectable. To complete the configuration

of Device Guard, you have to set a supervisor password.

When this option is disabled, the setup options are configurable and you can choose any boot options to

start the computer.

Startup menu

Note: The BIOS menu items might change without notice. Depending on the model, the default value might

vary.

• Boot

Descriptions: Define the startup sequence.

• Network Boot

Descriptions: Select the boot device when the system wakes from LAN. If Wake On LAN is enabled, the

network administrator can turn on all of the computers in a LAN remotely through network management

software.

• UEFI/Legacy Boot

Values: Both, UEFI Only, Legacy Only

Descriptions: Define the system boot capability.

– UEFI/Legacy Boot Priority

Values: Legacy First, UEFI First

Description: Select the boot priority between UEFI and Legacy.

– CSM Support (for UEFI only)

Values: Yes, No

74 T480s User Guide

Description: Compatibility Support Module (CSM) is required for starting the legacy operating system. If

you select UEFI only, CSM Support is selectable. For Both or Legacy Only mode, CSM Support is

not selectable.

• Boot Mode

Values: Quick, Diagnostics

Descriptions: Define which screen is displayed during the POST, the logo screen or the text message

screen.

• Option Key Display

Values: Disabled, Enabled

Descriptions: If you disable this option, the “To interrupt normal startup, press Enter.” message will not be

displayed during the POST.

• Boot Device List F12 Option

Values: Disabled, Enabled

Descriptions: If you enable this option, you can open the Boot Menu window by continuously pressing F12

when the computer is powered on.

• Boot Order Lock

Values: Enabled, Disabled

Descriptions: Enable this option to lock the boot device priority order.

Restart menu

Note: The BIOS menu items might change without notice. Depending on the model, the default value might

vary.

• Exit Saving Changes

Descriptions: Save the changes and restart the computer.

• Exit Discarding Changes

Descriptions: Discard the changes and restart the computer.

• Load Setup Defaults

Descriptions: Restore to the factory default settings.

Note: Enable OS Optimized Defaults to meet the Windows 10 certification requirements. When you

change this setting, some other settings are changed automatically, such as CSM Support, UEFI/Legacy

Boot, Secure Boot, Secure RollBack Prevention, Intel Virtualization Technology, and Intel VT-d

Feature.

• Discard Changes

Descriptions: Discard the changes.

• Save Changes

Descriptions: Save the changes.

Using system management

This topic is primarily intended for the network administrators.

Your computer is designed for manageability, so that you can redirect more resources to better meet your

business objectives.

Chapter 6.Advanced configuration 75

This manageability, known as total cost of ownership (TCO), enables you to remotely operate client

computers in the same way as you operate your own computer, such as turning on a client computer,

formatting a storage drive, and installing a program.

Once the computer is configured and operational, you can manage it by using the software and the

manageability features that are already integrated into the client computer and the network.

Desktop Management Interface

The UEFI BIOS of your computer supports an interface called System Management BIOS (SMBIOS)

Reference Specification, version 2.8 or later. SMBIOS provides information about the hardware components

of your computer. It is the responsibility of the UEFI BIOS to provide information about itself and the devices

on the system board. This specification documents the standards for getting access to this BIOS

information.

Preboot eXecution Environment

The Preboot eXecution Environment (PXE) technology makes the computer more manageable by enabling

the computer to start from a server. Your computer supports the personal computer functions that PXE

requires. For example, with the appropriate LAN card, your computer can be started from the PXE server.

Note: The Remote Initial Program Load (RIPL or RPL) function cannot be used with your computer.

Wake on LAN

The network administrator can turn on a computer from a management console by using the Wake on LAN

feature.

When the Wake on LAN feature is enabled, many operations, such as data transfer, software updates, and

flash updates of the UEFI BIOS, can be done remotely without remote attendance. The updating process can

perform after normal working hours and on weekends, so that the users are not interrupted during work, and

the LAN traffic is kept to a minimum. It saves time and increases productivity.

If the computer is turned on through Wake on LAN, the computer starts follow the Network Boot sequence.

Asset ID EEPROM

The Asset ID EEPROM contains information about the computer configuration and the serial numbers of the

key components. It also includes a number of blank fields where you can record information about the end

users in your network.

To enable a network administrator to remotely control your computer, set the following system-management

features in the ThinkPad Setup program:

• Wake on LAN

• Network Boot sequence

Note: If a supervisor password has been set, you are required to enter the supervisor password when you

start the ThinkPad Setup program.

Enabling or disabling the Wake on LAN feature

When the Wake on LAN feature is enabled and the computer is connected to a LAN, the network

administrator can start the computer remotely from a management console, using a remote network-

management program.

To enable or disable the Wake on LAN feature, do the following:

1. Restart the computer. When the logo screen is displayed, press F1 to start the ThinkPad Setup program.

76 T480s User Guide

2. Select Config ➙ Network. The Network submenu is displayed.

3. Select a corresponding option for the Wake on LAN feature.

4. Press F10 to save the settings and exit.

Defining a Network Boot sequence

When the computer wakes on LAN, the computer boots from the device as specified on the Network Boot

menu, and then follow the boot order list on the Boot menu.

To define a Network Boot sequence, do the following:

1. Restart the computer. When the logo screen is displayed, press F1 to start the ThinkPad Setup program.

2. Select Startup ➙ Network Boot. The boot device list is displayed.

3. Select a boot device to make it as the top boot priority.

4. Press F10 to save the settings and exit.

You can press F9 to restore to the factory default settings.

Chapter 6.Advanced configuration 77

78 T480s User Guide

Chapter 7. Troubleshooting computer problems

This chapter provides information about what to do if you experience a problem with your computer.

General tips for preventing problems

This topic provides the following tips to help you prevent computing problems:

• Empty your recycle bin on a regular basis.

• Use a disk defragment tool regularly on your storage drive to improve data seek and read times.

• To free up disk space, uninstall unused programs. You also might want to look for program duplication or

overlapping versions.

• Clean out your Inbox, Sent, and Trash folders from your e-mail client program.

• Back up your data at least once a week. If critical data is present, it is a good idea to back up the data

daily. Lenovo has many backup options available for your computer.

• Schedule system restore operations to take a system snapshot periodically. For information about system

restore, see Chapter 8 “Recovery information” on page 95.

• Go to https://support.lenovo.com to download and install updates for the device drivers and UEFI BIOS

when needed.

• Keep up to date for device drivers on other non-Lenovo hardware. Before updating device drivers, read

the device driver information release notes for compatibility or known issues.

• Keep a log book. Entries might include major hardware or software changes, driver updates, minor issues

you have experienced, and how you resolved the minor issues.

• If you ever need to run a recovery on your computer to return the preinstalled contents onto the machine,

the following tips might help along the way:

1. Remove all external devices such as the printer and keyboard.

2. Ensure that your battery is charged and your computer has the ac power connected.

3. Access ThinkPad Setup and load the default settings.

4. Restart the computer and start the recovery operation.

5. If your computer uses discs as the recovery media, do not remove the disc from the drive until

prompted to do so.

Diagnosing problems

Many computer problems can be solved without outside assistance. If you experience a problem with your

computer, the first place to start is the troubleshooting information in your computer documentation. If you

suspect a software problem, see the documentation, including readme files and help information systems,

that come with the operating system or program. ThinkPad notebook computers come with a set of

diagnostic programs that you can use to help you identify hardware problems.

Note: If you are unable to isolate and repair the problem yourself after running Lenovo Vantage, save and

print the log files created by the program. You need the log files when you speak to a Lenovo technical

support representative.

Lenovo Vantage supports the hardware scan function. It combines diagnostic tests, system information

collection, security status, and support information, along with hints and tips for optimal system

performance. To run Lenovo Vantage, see “Accessing Lenovo programs” on page 14.

The troubleshooting information or the diagnostic programs might tell you that you need additional or

updated device drivers or other software. You can get the latest technical information and download device

drivers and updates from the Lenovo Support Web site at:

https://support.lenovo.com

For additional information, see the help system of the program.

Troubleshooting

If your computer has an error, it typically displays a message or an error code, or makes a beep when you

turn it on. When you experience a problem, see the corresponding symptom and solution in this topic to try

to solve the problem by yourself.

Computer stops responding

Print these instructions now and keep them with your computer for reference later.

Problem: My computer is unresponsive (I cannot use the ThinkPad pointing device or the keyboard).

Solution: Do the following:

1. Remove all power sources from the computer and reset the system by inserting a straightened paper

clip into the emergency-reset hole. To locate the emergency-reset hole, refer to “Bottom view” on page

2. Reattach the ac power adapter and restart the computer. If the computer does not start up, continue

with step 3.

3. While the computer is turned off, remove all power sources from the computer and remove all external

devices that are attached to the computer (keyboard, mouse, printer, scanner, and so on). Reattach the

ac power adapter and restart the computer. If the computer still does not start up, call the Customer

Support Center.

Error messages

• Message: 0177: Bad SVP data, stop POST task.

Solution: Checksum of the supervisor password in the EEPROM is not correct. The system board should

be replaced. Have the computer serviced.

• Message: 0183: Bad CRC of Security Settings in EFI Variable. Enter ThinkPad Setup.

Solution: Checksum of the Security settings in the EFI Variable is not correct. Enter ThinkPad Setup to

check security settings, press F10, and then press Enter to restart the system. If you still have a problem,

have the computer serviced.

• Message: 0187: EAIA data access error

Solution: The access to EEPROM is failed. Have the computer serviced.

• Message: 0188: Invalid RFID Serialization Information Area

Solution: The EEPROM checksum is not correct (block # 0 and 1). The system board should be replaced,

and the box serial number must be reinstalled. Have the computer serviced.

• Message: 0189: Invalid RFID configuration information area

Solution: The EEPROM checksum is not correct (block # 4 and 5). The system board should be replaced,

and the universally unique identifier (UUID) must be reinstalled. Have the computer serviced.

• Message: 0190: Critical low-battery error

80 T480s User Guide

Solution: The computer turned off because the battery power is low. Connect the ac power adapter to the

computer and charge the batteries.

• Message: 0191: System Security - Invalid remote change requested

Solution: The system configuration change has failed. Confirm the operation and try again. To clear the

error, enter ThinkPad Setup.

• Message: 0199: System Security - Security password retry count exceeded.

Solution: This message is displayed if you enter a wrong supervisor password more than three times.

Confirm the supervisor password and try again. To clear the error, enter ThinkPad Setup.

• Message: 0270: Real Time Clock Error.

Solution: System Real Time Clock is not functional. Have the computer serviced.

• Message: 0271: Check Date and Time settings.

Solution: The date or the time is not set in the computer. Enter ThinkPad Setup and set the date and time.

• Message: 1802: Unauthorized network card is plugged in - Power off and remove the network card.

Solution: The wireless network card is not supported on this computer. Remove it.

• Message: 1820: More than one external fingerprint readers are attached.

Solution: Turn off and remove all but the reader that you set up within your main operating system.

• Message: 2100: Detection error on HDD0 (Main HDD)

Solution: The hard disk drive is not working. Have the hard disk drive serviced.

• Message: 2101: Detection error on SSD1 (M.2)

Solution: The M.2 solid-state drive is not working. Have the M.2 solid-state drive serviced.

• Message: 2102: Detection error on SSD2 (M.2)

Solution: The M.2 solid-state drive is not working. Have the M.2 solid-state drive serviced.

• Message: 2110: Read error on HDD0 (Main HDD)

Solution: The hard disk drive is not working. Have the hard disk drive serviced.

• Message: 2111: Read error on SSD1 (M.2)

Solution: The M.2 solid-state drive is not working. Have the M.2 solid-state drive serviced.

• Message: 2112: Read error on SSD2 (M.2)

Solution: The M.2 solid-state drive is not working. Have the M.2 solid-state drive serviced.

• Message: 2200: Machine Type and Serial Number are invalid.

Solution: Machine Type and Serial Number are invalid. Have the computer serviced.

• Message: 2201: Machine UUID is invalid.

Solution: Machine UUID is invalid. Have the computer serviced.

• Message: Fan error

Solution: Cooling fan has failed. Shut down the computer immediately and have the computer serviced.

• Message: Thermal sensing error

Solution: The thermal sensor has a problem. Shut down the computer immediately and have the

computer serviced.

• Message: Bottom Cover Tamper Detection

Solution: The tamper switch was dropped off. Have the computer serviced.

• Message: Error: The non-volatile system UEFI variable storage is nearly full.

Note: This error indicates that the operating system or programs cannot create, modify, or delete data in

the non-volatile system UEFI variable storage due to insufficient storage space after POST.

Chapter 7.Troubleshooting computer problems 81

The non-volatile system UEFI variable storage is used by the UEFI BIOS and by the operating system or

programs. This error occurs when the operating system or programs store large amounts of data in the

variable storage. All data needed for POST, such as BIOS setup settings, chipset, or platform

configuration data, are stored in a separate UEFI variable storage.

Solution: Press F1 after the error message is displayed to enter ThinkPad Setup. A dialog asks the user

for confirmation to clean up the storage. If the user selects “Yes”, all data that were created by the

operating system or programs will be deleted except global variables defined by the Unified Extensible

Firmware Interface Specification. If the user selects “No”, all data will be kept, but the operating system or

programs will not be able to create, modify, or delete data in the storage.

If this error happens at a service center, Lenovo authorized service personnel will clean up the non-volatile

system UEFI variable storage using the preceding solution.

Beep errors

Lenovo SmartBeep technology enables you to decode beep errors with your smartphone when a black

screen occurs with beeps from your computer. To decode the beep error with Lenovo SmartBeep

technology, do the following:

1. Go to https://support.lenovo.com/smartbeep or scan the following QR Code.

2. Download the proper diagnostic app and install it on your smartphone.

3. Run the diagnostic app and place the smartphone near the computer.

4. Press the Fn key on your computer to emit the beep again. The diagnostic app decodes the beep error

and shows possible solutions on the smartphone.

The following section describes some beep errors and the corresponding solutions.

Note: Do not attempt to service a product yourself unless instructed to do so by the Customer Support

Center or product documentation. Only use a Lenovo-authorized service provider to repair your product.

Error codes Solutions

0001: Reset error (platform reset not de-asserted) 1. Disconnect the ac power adapter. If your computer

has a built-in battery, reset the computer by

inserting a straightened paper clip into the

emergency-reset hole. Wait for one minute. Then

reconnect all power resources.

2. Replace the system board (service provider only).

0002: Internal bus error Replace the system board (service provider only).

0281: General embedded controller error Replace the system board (service provider only).

0282: Memory module error 1. Reinstall or replace the memory module.

2. Replace the system board (service provider only).

82 T480s User Guide

Error codes Solutions

0283: PCI resource error 1. Remove PCIe devices (the M.2 card, PCIe card,

and so on) (service provider only).

2. Replace the system board (service provider only).

0284: TCG-compliant functionality-related error (might be

the BIOS code validation failure) Replace the system board (service provider only).

0285: TCG-compliant functionality-related error (might be

the TPM initialization failure) Replace the system board (service provider only).

0286: Integrated graphics error Replace the system board (service provider only).

0287: Discrete graphics error 1. Reinstall or replace the discrete graphics card

(service provider only).

2. Replace the system board (service provider only).

0288: Computer display error 1. Reconnect the display cable on both the system

board side and the computer display side (service

provider only).

2. Replace the system board (service provider only).

Memory module problems

Print these instructions now and keep them with your computer for reference later.

Problem: My memory module is not operating properly.

Solution: Check the following items:

1. Verify that the memory module is installed and seated correctly in your computer.

Remove all added memory modules to test the computer with only the factory-installed memory

modules, and then reinstall the memory module one at a time to ensure a proper connection.

2. Check for error messages during startup.

Follow the appropriate corrective actions for power-on self-test (POST) error messages.

3. Verify that the latest UEFI BIOS for your model has been installed.

4. Verify the proper memory configuration and compatibility including the maximum memory size and the

memory speed.

5. Run diagnostic programs. See “Diagnosing problems” on page 79.

Ethernet problems

• Problem: My computer cannot connect to the network.

Solution:

Ensure that:

– The cable is installed correctly.

The network cable must be securely connected both to the Ethernet connector of your computer and to

the RJ45 connector of the hub. The maximum allowable distance from the computer to hub is 100 m

(328 ft). If the cable is connected and the distance is within the acceptable limits but the problem

persists, try a different cable.

– You are using the correct device driver. To install the correct driver, do the following:

Chapter 7.Troubleshooting computer problems 83

1. Go to Control Panel, and ensure that you view Control Panel by Category.

2. Click Hardware and Sound ➙ Device Manager. If you are prompted for an administrator

password or confirmation, type the password or provide confirmation.

3. Double-click Network adapters to view all network adapters. If an exclamation mark ! is displayed

next to the adapter name, you might not be using the correct driver or the driver might have been

disabled.

4. Right-click the highlighted adapter, click Update driver, and then follow the instructions on the

screen to update the driver.

– The switch port and the adapter have the same duplex setting.

If you configured the adapter for full duplex, ensure that the switch port also is configured for full

duplex. Setting a wrong duplex mode can degrade performance, cause data loss, or result in lost

connections.

– You have installed all networking software that is necessary for your network environment.

Check with your LAN administrator for the necessary networking software.

• Problem: The adapter stops working for no apparent reason.

Solution: The network driver files might be corrupt or missing.

• Problem: My computer is a Gigabit Ethernet model and I use a speed of 1000 Mbps, the connection fails

or errors occur.

Solution:

– Use Category 5 wiring and ensure that the network cable is securely connected.

– Connect to a 1000 BASE-T hub/switch (not 1000 BASE-X).

• Problem: The Wake on LAN feature is not working.

Solution: Ensure that Wake on LAN is enabled in ThinkPad Setup. If it is, check with your LAN

administrator for the necessary settings.

• Problem: My computer is a Gigabit Ethernet model, but it cannot connect to the network at 1000 Mbps.

Instead, it connects at 100 Mbps.

Solution:

– Try another Ethernet cable.

– Ensure that the link partner is set to auto-negotiate.

– Ensure that the switch is 802.3ab-compliant (gigabit over copper).

Wireless-LAN problem

Problem: I cannot connect to the network using the built-in wireless network card.

Solution: Ensure that:

• The Airplane mode is off.

• Your wireless-LAN driver is the latest version.

• Your computer is within the range of a wireless access point.

• The wireless radio is enabled.

Wireless-WAN problem

Problem: A message is displayed indicating that an unauthorized WAN card is installed.

84 T480s User Guide

Solution: The WAN card is not supported on this computer. Remove the WAN card. For more information,

see “Replacing the wireless-WAN card” on page 101.

Note: Some models do not have a wireless-WAN card.

Bluetooth problem

Note: Check your connection anytime and ensure that no other Bluetooth-enabled device is searching for

the device to which you want to connect. Simultaneous searching is not allowed in the Bluetooth connection.

Problem: Sound does not come from the Bluetooth headset/headphones but comes from the local speaker

even though the Bluetooth headset/headphones is connected using a Headset profile or AV profile.

Solution: Do the following:

1. Exit the program that uses the sound device (for example, Windows Media Player).

2. Go to Control Panel, and ensure that you view Control Panel by Category.

3. Click Hardware and Sound ➙ Sound ➙ Playback.

4. If you are using a Headset profile, select Bluetooth Hands-free Audio and click Set Default. If you are

using an AV profile, select Stereo Audio and click Set Default.

5. Click OK to close the Sound window.

ThinkPad pointing device problems

• Problem: The pointer drifts when the computer is turned on or after it resumes normal operation.

Solution: The pointer might drift when you are not using the TrackPoint pointing device during normal

operation. This is a normal characteristic of the TrackPoint pointing device and is not a defect. Pointer

drifting might occur for several seconds under the following conditions:

– When the computer is turned on

– When the computer resumes normal operation

– When the TrackPoint pointing device is kept pressed for a long time

– When the temperature changes

• Problem: The TrackPoint pointing device or trackpad does not work.

Solution: Ensure that the TrackPoint pointing device or trackpad is enabled in the Mouse Properties

window. For more information, see “Customizing the ThinkPad pointing device” on page 24.

Keyboard problems

• Problem: All or some keys on the keyboard do not work.

Solution: If an external numeric keypad is connected:

1. Turn off the computer.

2. Remove the external numeric keypad.

3. Turn on the computer and try using the keyboard again.

If the keyboard problem is resolved, carefully reconnect the external numeric keypad.

If the problem persists, ensure that the correct device driver is installed by doing the following:

1. Go to Control Panel, and then change the view of Control Panel from Category to Large icons or

Small icons.

2. Click Keyboard.

Chapter 7.Troubleshooting computer problems 85

3. Click the Hardware tab. In the Device Properties section, ensure that you see this message: Device

Status: This device is working properly.

If keys on the keyboard still do not work, have the computer serviced.

• Problem: All or some keys on the external numeric keypad do not work.

Solution: Ensure that the external numeric keypad is correctly connected to the computer.

• Problem: The keys on the top row of the numeric keypad might not function the same as the icon printed

on each key.

Solution: Do the following:

1. Go to Control Panel, and then change the view of Control Panel from Category to Large icons or

Small icons.

2. Click Keyboard. In the Keyboard Properties window, click the Fn and function keys tab.

Note: If the Fn and function keys tab is not displayed, connect your computer to the Internet. Then

download and install the ThinkPad Hotkey Features program from the Lenovo Support Web site. For

more information, see “Installing device drivers” on page 62.

3. In the How to use Fn key combinations section, select your preferred option.

4. If you select Fn sticky method, press Fn to reset the Fn sticky status.

5. Try to press keys on the top row of the numeric keypad again to check if the problem is resolved.

Computer screen problems

• Problem: My screen keeps blanking when I do not want it to.

Solution: Do the following:

1. Go to Control Panel, and ensure that you view Control Panel by Category.

2. Click Hardware and Sound ➙ Power Options.

3. Show the additional plans, and then select High performance.

• Problem: When I turn on the computer, nothing is displayed on the screen and the computer does not

beep while starting up.

Note: If you are not sure whether you heard any beeps, turn off the computer by pressing and holding the

power button for four seconds or more. Then turn on the computer and listen again.

Solution: Ensure that:

– The ac power adapter is connected to the computer and the power cord is plugged into a working

electrical outlet.

– The computer is turned on. (Press the power button again for confirmation.)

– The brightness level of the screen is appropriately set.

If a power-on password is set, press any key to display the prompt for the power-on password and then

type the correct password and press Enter.

If these items are correctly set, and the screen remains blank, have the computer serviced.

• Problem: When I turn on the computer, only a white cursor is displayed on a blank screen.

Solution: If you have modified a partition on your hard disk drive by using partition software, information

about that partition, or the master boot record might have been destroyed.

Do the following to try to solve the problem:

1. Turn off the computer, and then turn it on again.

2. If you still see only the cursor on the screen, do the following:

86 T480s User Guide

– If you have used partition software, examine the partition on the hard disk drive by using the

software, and recover the partition if required.

– Use the recovery solutions to restore the system to the factory default state. For more information,

see Chapter 8 “Recovery information” on page 95.

If the problem persists, have the computer serviced.

• Problem: The screen goes blank while the computer is on.

Solution: Your screen saver or power management might have been enabled. Do one of the following:

– Touch the TrackPoint pointing device or the trackpad, or press a key to exit the screen saver.

– Press the power button to resume the computer from sleep or hibernation mode.

• Problem: The screen is blank.

Solution: Do the following:

1. Press the display-mode switching key to bring up the image.

2. If you are using the ac power adapter, or using the battery and the battery gauge shows that the

battery is not depleted, press the brightness-up key to make the screen brighter.

3. If your computer is in sleep mode, press Fn to resume the computer from sleep mode.

4. If the problem persists, follow the solution for the following problem.

• Problem: The screen is unreadable or distorted.

Solution: Ensure that:

– The display device driver is installed correctly.

– The screen resolution and color quality are correctly set.

– The monitor type is correct.

To check these settings, do the following:

1. Right-click on the desktop, and then click Display settings ➙ Display.

Note: If your computer cannot detect the external monitor, click Detect in the Display window.

2. Select the external monitor and set Resolution.

3. Click Display adapter properties.

4. Click the Monitor tab. Check the monitor information to ensure that the monitor type is correct. If it is,

click OK to close the window; otherwise proceed with the following steps.

5. If more than two monitor types are displayed, select Generic PnP Monitor or Generic Non-PnP

Monitor.

6. Click Properties. If you are prompted for an administrator password or confirmation, type the

password or provide confirmation.

7. Click the Driver tab.

8. Click Update Driver.

9. Click Browse my computer for driver software, and then click Let me pick from a list of available

drivers on my computer.

10. Clear the Show compatible hardware check box.

11. Select the correct manufacturer and model for the external monitor. If you cannot find your monitor

on the list, stop the installation of this driver and use the driver shipped with your monitor.

12. After updating the driver, click Close.

• Problem: Incorrect characters are displayed on the screen.

Chapter 7.Troubleshooting computer problems 87

Solution: Ensure that you install the operating system and program correctly. If the problem persists, have

the computer serviced.

• Problem: I try to turn off my computer but the screen stays on and I cannot completely turn off my

computer.

Solution: Press and hold the power button for four seconds or more to turn off the computer.

• Problem: Missing, discolored, or bright dots appear on the screen every time I turn on my computer.

Solution: This is an intrinsic characteristic of the TFT technology. Your computer display contains multiple

thin-film transistors (TFTs). Only a very small number of missing, discolored, or bright dots on the screen

might exist all the time.

External monitor problems

• Problem: The external monitor is blank.

Solution: To bring up the image, press the display-mode switching key and select the monitor you

want. If the problem persists, do the following:

1. Connect the external monitor to another computer to ensure that it works.

2. Reconnect the external monitor to your computer.

3. See the manual shipped with the external monitor to check the resolutions and refresh rates that are

supported.

– If the external monitor supports the same resolution as the computer display or a higher resolution,

view output on the external monitor or on both the external monitor and the computer display.

– If the external monitor supports a lower resolution than the computer display, view output on the

external monitor only. (If you view output on both the computer display and the external monitor,

the external monitor screen will be blank or distorted.)

• Problem: I cannot set a higher resolution than the present one on my external monitor.

Solution: Ensure that the monitor information is correct. If necessary, update the monitor driver.

• Problem: The screen is unreadable or distorted.

Solution: Ensure that:

– The monitor information is correct and the appropriate monitor type is selected. If necessary, update

the monitor driver.

– Ensure that an appropriate refresh rate is selected by doing the following:

1. Connect the external monitor to the monitor connector, and then connect the monitor to an

electrical outlet.

2. Turn on the external monitor and the computer.

3. Right-click on the desktop, and then click Display settings ➙ Display.

Note: If your computer cannot detect the external monitor, click Detect in the Display window.

4. Click the icon for the appropriate monitor (Monitor-2 icon is for the external monitor).

5. Click Display adapter properties.

6. Click the Monitor tab.

7. Select the correct screen refresh rate.

• Problem: Wrong characters are displayed on the screen.

Solution: Ensure that you follow the correct procedure when installing the operating system and program.

If they are installed and configured correctly, but the problem still persists, have the external monitor

serviced.

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• Problem: The Extend desktop function does not work.

Solution: Enable the Extend desktop function. See “Using an external display” on page 35.

• Problem: I am using the Extend desktop function, but I cannot set a higher resolution or higher refresh

rate on the secondary display.

Solution: Change the resolution and the color depth to lower settings for the primary display. See “Using

an external display” on page 35.

• Problem: Display switching does not work.

Solution: If you use the Extend desktop function, disable it, and change the display output location. If a

DVD movie or a video clip is playing, stop the playback, close the program, and then change the display

output location.

• Problem: The screen position on the external monitor is incorrect when that monitor is set for a high

resolution.

Solution: Sometimes, when you use a high resolution such as 1600 x 1200 pixels, the image is shifted to

the left or right on the screen. To correct this, first ensure that your external monitor supports the display

mode (the resolution and the refresh rate) that you have set. If it does not, set a display mode that the

monitor supports. If it does support the display mode you have set, go to the setup menu for the monitor

itself and adjust the settings there. Usually the external monitor has buttons for access to the setup menu.

For more information, see the documentation that comes with the monitor.

Audio problems

• Problem: Wave or MIDI sound does not play properly.

Solution: Ensure that the built-in audio device is configured correctly.

1. Go to Control Panel, and ensure that you view Control Panel by Category.

2. Click Hardware and Sound.

3. Click Device Manager. If you are prompted for an administrator password or confirmation, type the

password or provide confirmation.

4. Double-click Sound, video and game controllers.

5. Ensure that the device following Sound, video and game controllers is enabled and configured

correctly.

• Problem: Recordings made by using the microphone input are not loud enough.

Solution: Ensure that the Microphone Boost function is turned on and set by doing the following:

1. Go to Control Panel, and ensure that you view Control Panel by Category.

2. Click Hardware and Sound.

3. Click Sound.

4. Click the Recording tab in the Sound window.

5. Select Microphone Array, and click Properties.

6. Click the Levels tab, and adjust the Microphone Boost slider as you need.

7. Click OK.

Note: For more information about controlling volume, see your Windows online help.

• Problem: I cannot move the volume slider or balance slider.

Solution: The slider might be grayed out. This means that its position is fixed by the hardware and cannot

be changed.

• Problem: The volume sliders do not stay in place when some audio programs are used.

Chapter 7.Troubleshooting computer problems 89

Solution: It is normal for the sliders to change position when certain sound programs are used. The

programs are aware of the settings in the Volume Mixer window and are enabled to change the settings

themselves. An example is the Windows Media Player program. Usually the program has sliders available

to control the sound from within the program.

• Problem: The balance slider cannot completely mute one channel.

Solution: The control is designed to compensate for minor differences in balance and does not

completely mute either channel.

• Problem: There is no volume control for MIDI sound in the Volume Mixer window.

Solution: Use the hardware volume control. This is because the built-in synthesizer software does not

support the control.

• Problem: The sound cannot be turned off even if I set the Master volume control at minimum.

Solution: You still can hear some sound even though you have set the Master volume control at minimum.

To turn off the sound completely, go to the Master volume control and select Mute Speaker/HP.

• Problem: When I connect headphones to my computer while playing sound, a speaker does not produce

sound.

Solution: When the headphones are attached, the streaming is automatically redirected to it. If you want

to listen to sound from the speakers again, ensure that you set those speakers as the default device. For

more information, see the help information system for Realtek HD Audio Manager.

• Problem: Sound does not come from a headphone or a speaker, or the computer cannot record sounds.

Solution: To switch from one device to another (for example, from a speaker to a headphone, or from an

external microphone to a built-in microphone), do the following:

1. Go to Control Panel, and ensure that you view Control Panel by Category.

2. Click Hardware and Sound.

3. Click the Sound icon. The Sound window is displayed.

4. Click the Playback tab. Select the desired device (for example, speakers) and then click Set Default.

The speakers are set to the default device with a check mark displayed beside the speaker icon.

5. Play any sound through a music program (for example, Windows Media Player). Ensure that sound

comes from the speakers now.

6. Then, if you would like to switch to a headset, close the music program.

7. Click the Playback tab. Select Headset Earphone and then click Set Default. The headset is set to

the default device with a check mark displayed beside the headset icon.

8. Play any sound through a music program. Ensure that sound comes from the headset attached

directly to the computer.

Fingerprint reader problems

• Problem: The surface of the reader is dirty, stained, or wet.

Solution: Gently clean the surface of the reader with a dry, soft, lint-free cloth.

• Problem: The reader often fails to enroll or authenticate your fingerprint.

Solution: If the surface of the reader is dirty, stained, or wet, gently clean the surface of the reader with a

dry, soft, lint-free cloth.

For tips on how to maintain the fingerprint reader, see “Using the fingerprint reader” on page 56.

Battery problems

• Problem: The battery cannot be fully charged in the standard charge time when the computer is powered

off.

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Solution: The battery might be over-discharged. Connect the ac power adapter to the computer and let it

charge. If the battery cannot be fully charged in 24 hours, have the computer serviced.

• Problem: The computer shuts down before the battery status icon shows that the battery is empty.

Solution: Fully discharge and recharge the battery for two times. If the problem persists, have the

computer serviced.

• Problem: The operating time for a fully charged battery is short.

Solution: Fully discharge and recharge the battery for two times. If the problem persists, have the

computer serviced.

• Problem: I cannot turn on my computer with a fully charged battery.

Solution: Do the following:

1. Remove the ac power adapter.

2. Reset the system by inserting one end of a needle or a straightened paper clip into the emergency-

reset hole. To locate the emergency-reset hole, see “Bottom view” on page 6.

3. Reconnect the ac power adapter, and then turn on the computer.

• Problem: The battery cannot get charged.

Solution: You cannot charge the battery when it is too hot. If the battery is hot, wait for a while to let it cool

to room temperature. After it cools, recharge the battery. If it still cannot be charged, have the computer

serviced.

ac power adapter problem

Problem: The ac power adapter is connected to the computer and the working electrical outlet, but the

power adapter (power plug) icon is not displayed in the Windows notification area. The ac power indicator

also does not light up.

Solution: Do the following:

1. Ensure that the connection of the ac power adapter is correct. For instructions on how to connect the ac

power adapter, see “Using the ac power adapter” on page 25.

2. If the connection of the ac power adapter is correct, turn off the computer, and then disconnect the ac

power adapter.

3. Reconnect the ac power adapter, and then turn on the computer.

4. If the power adapter icon still is not displayed in the Windows notification area, have the ac power

adapter and your computer serviced.

Power problems

Print these instructions now and keep them with your computer for reference later.

• Problem: My computer is getting no power at all.

Solution: Check the following items:

1. Verify the power button. The power button is illuminated whenever the computer is on.

2. Check all power connections. Remove any power strips and surge protectors to connect the ac

power adapter directly to the ac power outlet.

3. Inspect the ac power adapter. Check for any physical damage, and ensure that the power cable is

firmly attached to the adapter brick and the computer.

4. Verify that the ac power source is working by attaching another device to the outlet.

• Problem: My computer does not run on battery power.

Chapter 7.Troubleshooting computer problems 91

Solution: Check the following items:

1. If the battery runs out of power, attach the ac power adapter to recharge the battery.

2. If the battery is charged but the computer does not run, have the computer serviced.

• Problem: The system does not respond, and I cannot turn off the computer.

Solution: Turn off the computer by pressing and holding the power button for four seconds or more.

Power button problem

Problem: The system does not respond, and I cannot turn off the computer.

Solution: Turn off the computer by pressing and holding the power button for four seconds or more. If the

system still does not respond, remove the ac power adapter and reset the system by inserting one end of a

needle or a straightened paper clip into the emergency-reset hole. To locate the emergency-reset hole, see

“Bottom view” on page 6.

Boot problems

Print these instructions now and keep them with your computer for reference later.

• Problem: I receive an error message before the operating system loads.

Solution: Follow the appropriate corrective actions for power-on self-test (POST) error messages.

• Problem: I receive an error message while the operating system is loading the desktop configuration after

the POST is completed.

Solution: Find solutions by searching for the error message at the following Web sites:

– https://support.lenovo.com

– https://support.microsoft.com/

Sleep and hibernation problems

• Problem: The computer enters sleep mode unexpectedly.

Solution: If the microprocessor overheats, the computer automatically enters sleep mode to allow the

computer to cool and to protect the microprocessor and other internal components. Check the settings

for sleep mode.

• Problem: The computer enters sleep mode immediately after the power-on self-test.

Solution: Ensure that:

– The battery is charged.

– The operating temperature is within the acceptable range. See “Operating environment” on page 13.

If the problem persists, have the computer serviced.

• Problem: A critical low-battery error occurs, and the computer immediately turns off.

Solution: The battery power is getting low. Plug the ac power adapter into an electrical outlet and then

into the computer.

• Problem: The computer display remains blank after you press Fn to resume from sleep mode.

Solution: Check whether an external monitor was disconnected or turned off while the computer was in

sleep mode. If you disconnected or turned off the external monitor, connect it or turn it on before resuming

the computer from sleep mode. When resuming the computer from sleep mode without attaching the

external monitor or turning it on, and the computer display remains blank, press the display-mode

switching key to bring up the computer display.

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• Problem: The computer does not resume from sleep mode, or the system status indicator blinks slowly

and the computer does not work.

Solution: If the system does not resume from sleep mode, it might have entered sleep or hibernation

mode automatically because the battery is depleted. Check the system status indicator.

– If the system status indicator blinks slowly, your computer is in sleep mode. Connect the ac power

adapter to the computer; then press Fn.

– If the system status indicator is off, your computer has no power or is in hibernation mode. Connect the

ac power adapter to the computer; then press the power button to resume operation.

If the system still does not resume from sleep mode, your system might stop responding and you might

not be able to turn off the computer. In this case, you must reset the computer. If you have not saved your

data, it might be lost. To reset the computer, press and hold the power button for four seconds or more. If

the system is still not reset, remove the ac power adapter and reset the system by inserting a straightened

paper clip into the emergency-reset hole. To locate the emergency-reset hole, refer to “Bottom view” on

page 6.

• Problem: Your computer does not enter sleep or hibernation mode.

Solution: Check whether any option has been selected to disable your computer from entering sleep or

hibernation mode.

If your computer tries to enter sleep mode but the request is rejected, the device attached to the USB

connector might have been disabled. If this occurs, do a hot-unplug-and-plug operation for the USB

device.

• Problem: The battery discharges slightly while the computer is in hibernation mode.

Solution: If the wakeup function is enabled, the computer consumes a small amount of power. This is not

a defect. For more information, see “Power-saving modes” on page 27.

Solid-state drive problem

Problem: When you compress files or folders by use of the data compression function in the Windows

operating system, and then decompress them, the process of writing to or reading from the files or folders is

slow.

Solution: Apply the disk defragmentation tool in the Windows operating system for faster access to the data.

Software problem

Problem: A program does not run properly.

Solution: Ensure that the problem is not being caused by the program.

Check that your computer has the minimum required memory to run the program. See the manuals supplied

with the program.

Check the following:

• The program is designed to operate with your operating system.

• Other programs run properly on your computer.

• The necessary device drivers are installed.

• The program works when it is run on some other computer.

If an error message is displayed while you are using the program, see the manuals or help system supplied

with the program.

Chapter 7.Troubleshooting computer problems 93

If the program still does not run properly, contact your place of purchase or a service representative for help.

USB problem

Problem: A device connected to the USB connector does not work.

Solution: Ensure that the USB port is enabled in the ThinkPad Setup. Open the Device Manager window.

Ensure that the USB device setup is correct, and that the assignment of computer resource and the

installation of the device driver are correct. To open the Device Manager window, go to Control Panel and

ensure that you view Control Panel by Category, and click Hardware and Sound ➙ Device Manager. If you

are prompted for an administrator password or confirmation, type the password or provide confirmation.

Refer to “Diagnosing problems” on page 79 and run a diagnostic test of the USB connector.

Docking station problem

Problem: The computer does not start when you try to turn it on, and does not respond when you try to

resume operation.

Solution: Ensure that:

• The ac power adapter is connected to the docking station.

• The computer is securely attached to the docking station.

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Chapter 8. Recovery information

This chapter provides information about the Windows recovery solutions on the Windows 10 operating

system.

Resetting your computer

If your computer does not perform well, you might consider resetting your computer. In the resetting

process, you can choose to keep your files or remove them, and then reinstall the Windows operating

system.

To reset your computer, do the following:

Note: The items in the graphical user interface (GUI) might change without notice.

1. Open the Start menu, and then click Settings ➙ Update & Security ➙ Recovery.

2. In the Reset this PC section, click Get started.

3. Follow the instructions on the screen to reset your computer.

Using advanced startup options

The advanced startup options enable you to do the following:

• Change the firmware settings of the computer

• Change the startup settings of the Windows operating system

• Start the computer from an external device

• Restore the Windows operating system from a system image

To use advanced startup options, do the following:

Note: The items in the graphical user interface (GUI) might change without notice.

1. Open the Start menu, and then click Settings ➙ Update & security ➙ Recovery.

2. In the Advanced startup section, click Restart now ➙ Troubleshoot ➙ Advanced options.

3. Select a startup option you want, and then follow the instructions on the screen.

Recovering your operating system if Windows 10 fails to start

The Windows recovery environment on your computer operates independently from the Windows 10

operating system. It enables you to recover or repair the operating system even if the Windows 10 operating

system fails to start.

After two consecutive failed boot attempts, the Windows recovery environment starts automatically. Then

you can choose repair and recovery options by following the on-screen instructions.

Note: Ensure that your computer is connected to ac power during the recovery process.

Creating and using a recovery USB drive

You can create a recovery USB drive as a backup for the Windows recovery programs. With the recovery

USB drive, you can troubleshoot and fix the problems even if the preinstalled Windows recovery programs

are damaged.

It is recommended that you create a recovery USB drive as early as possible. If you did not create a recovery

USB drive as a precautionary measure, you can contact Lenovo Customer Support Center and purchase one

from Lenovo. For a list of the Lenovo Support phone numbers for your country or region, go to:

https://pcsupport.lenovo.com/supportphonelist

Creating a recovery USB drive

To create a recovery USB drive, you need a USB drive with at least 16 GB of storage capacity. The actual

USB capacity that is required depends on the size of the recovery image.

Attention: The creation process will delete anything stored on the USB drive. To avoid data loss, make a

backup copy of all the data that you want to keep.

To create a recovery USB drive, do the following:

Note: Ensure that your computer is connected to ac power during the following process.

1. Connect a proper USB drive (at least 16 GB of storage) to the computer.

2. Type recovery in the search box on the taskbar. Then click Create a recovery drive.

3. Click Yes in the User Account Control window to allow the Recovery Media Creator program to start.

4. In the Recovery Drive window, follow the instructions on the screen to create a recovery USB drive.

Using the recovery USB drive

If you cannot start your computer, refer to the corresponding information in the topic “Troubleshooting” on

page 80 to try to solve the problem by yourself. If you still cannot start your computer, use the recovery USB

drive to recover your computer.

To use a recovery USB drive, do the following:

Note: Ensure that your computer is connected to ac power during the following process.

1. Connect the recovery USB drive to the computer.

2. Turn on or restart the computer. Before the Windows operating system starts, repeatedly press F12. The

Boot Menu window opens.

3. Select the recovery USB drive as the boot device.

4. Select a preferred keyboard layout.

5. Click Troubleshoot to display optional recovery solutions.

6. Select a corresponding recovery solution according to your situation. Then follow the instructions on the

screen to complete the process.

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Chapter 9. Replacing devices

This chapter provides instructions on how to install or replace hardware for your computer.

Customer Replaceable Units

Customer Replaceable Units (CRUs) are parts that can be upgraded or replaced by the customer. ThinkPad

computers contain the following types of CRUs:

• Self-service CRUs: Refer to parts that can be installed or replaced easily by customer themselves or by

trained service technicians at an additional cost.

• Optional-service CRUs: Refer to parts that can be installed or replaced by customers with a greater skill

level. Trained service technicians can also provide service to install or replace the parts under the type of

warranty designated for the customer’s machine.

If you intend on installing the CRU, Lenovo will ship the CRU to you. CRU information and replacement

instructions are shipped with your product and are available from Lenovo at any time upon request. You

might be required to return the defective part that is replaced by the CRU. When return is required: (1) return

instructions, a prepaid shipping label, and a container will be included with the replacement CRU; and (2) you

might be charged for the replacement CRU if Lenovo does not receive the defective CRU within thirty (30)

days of your receipt of the replacement CRU. See your Lenovo Limited Warranty documentation at https://

www.lenovo.com/warranty/llw_02 for full details.

For the CRU information of your computer, refer to the following list.

Self-service CRUs

• ac power adapter and power cord

• Base cover assembly

• M.2 solid-state drive

• Nano-SIM-card tray

• Replaceable memory module (available on some models)

• Wireless LAN card

• Wireless WAN card (available on some models)

Optional-service CRUs

• Keyboard

Static electricity prevention

Static electricity, although harmless to you, can seriously damage computer components and options.

Improper handling of static-sensitive parts can cause damage to the part. When you unpack an option or a

Customer Replaceable Unit (CRU), do not open the static-protective package until the instructions direct you

to install the part.

When you handle options or CRUs, or perform any work inside the computer, take the following precautions

to avoid static-electricity damage:

• Limit your movement. Movement can cause static electricity to build up around you.

• Always handle components carefully. Handle adapters, memory modules, and other circuit boards by the

edges. Never touch exposed circuitry.

• Prevent others from touching the components.

• Before you install a static-sensitive option or CRU, do either of the following to reduce static electricity in

the package and your body:

– Touch the static-protective package that contains the part to a metal expansion-slot cover for at least

two seconds.

– Touch the static-protective package that contains the part to other unpainted metal surface on the

computer for at least two seconds.

• When possible, remove the static-sensitive part from the static-protective package and install the part

without setting it down. When this is not possible, place the static-protective package on a smooth, level

surface and place the part on the package.

• Do not place the part on the computer cover or other metal surface.

Disabling the built-in battery

Before replacing any CRU, ensure that you disable Fast Startup first and then disable the built-in battery.

To disable Fast Startup, do the following:

1. Go to Control Panel, and then change the view of Control Panel from Category to Large icons or Small

icons.

2. Click Power Options, and then click Choose what the power buttons do on the left pane.

3. Click Change settings that are currently unavailable at the top.

4. If prompted by User Account Control (UAC), click Yes.

5. Clear the Turn on fast startup check box, and then click Save changes.

To disable the built-in battery, do the following:

1. Restart your computer. When the logo screen is displayed, immediately press F1 to enter ThinkPad

Setup.

2. Select Config ➙ Power. The Power submenu is displayed.

3. Select Disable built-in battery and press Enter.

4. Select Yes in the Setup Confirmation window. The built-in battery is disabled and the computer turns off

automatically. Wait three to five minutes to let the computer cool.

Replacing the nano-SIM card

Before you start, read “Important safety information” on page v and print the following instructions.

A nano-SIM card is a small plastic card with an Integrated Circuit (IC) chip mounted on one side of the card.

If your computer supports wireless WAN, your computer might require a nano-SIM card to establish wireless

WAN connections. Depending on the model, you might need to purchase a nano-SIM card or a nano-SIM

card might already be installed in your computer. In some countries or regions, a nano-SIM card is part of the

shipping contents that come with your computer.

Attention: When installing or removing the nano-SIM card, do not touch the nano-SIM card metal

connectors.

To replace the nano-SIM card, do the following:

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1. Ensure that the computer is turned off and disconnected from ac power and all cables.

2. Locate the nano-SIM-card tray at the rear side of the computer.

3. Insert a straightened paper clip into the hole in the nano-SIM-card tray 1. The tray ejects. Then, slide the

tray out of the computer. If a nano-SIM card is installed, gently take the nano-SIM card out of the tray 2.

Install a new nano-SIM card into the tray 3. Insert the tray into the computer 4.

4. Connect the ac power adapter and all cables to the computer.

Replacing the base cover assembly

Before you start, read “Important safety information” on page v and print the following instructions.

Notes:

• Depending on the model, your computer might look slightly different from the illustrations in this topic.

• There might be a risk of short circuits if you remove the base cover assembly when your computer is

connected to ac power. Besides, the computer will not start after you reinstall the base cover assembly.

To start the computer, disconnect the ac power adapter and then reconnect it to the computer.

To replace the base cover assembly, do the following:

1. Disable the built-in battery. See “Disabling the built-in battery” on page 98.

2. Ensure that the computer is turned off and disconnected from ac power and all cables.

3. Close the computer display and turn the computer over.

Chapter 9.Replacing devices 99

4. Loosen the screws 1 and then remove the base cover assembly 2.

5. Install a new base cover assembly in place 1. Press the left and right sides of the base cover assembly

as shown 2, and then tighten the screws in ascending alphabetical order (a to f) as illustrated 3.

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6. Turn the computer over. Connect the ac power adapter and all cables to the computer.

Replacing the wireless-WAN card

The following information is only for the computer with user-installable modules.

Before you start, read “Important safety information” on page v and print the following instructions.

Attention: Do not touch the contact edge of the wireless-WAN card. Otherwise the wireless-WAN card

might get damaged.

To replace the wireless-WAN card, do the following:

1. Disable the built-in battery. See “Disabling the built-in battery” on page 98.

2. Ensure that the computer is turned off and disconnected from ac power and all cables.

3. Close the computer display and turn the computer over.

4. Remove the base cover assembly. See “Replacing the base cover assembly” on page 99.

5. Remove the wireless-WAN card by doing the following:

a. Open the mylar film to access the wireless-WAN card 1.

b. Hold the cable connector with your fingers and gently disconnect each cable from the wireless-WAN

card 2. Then remove the screw that secures the wireless-WAN card 3. The card is released from the

secured position and pivots upward.

c. Carefully remove the wireless-WAN card out of the slot 4.

Chapter 9.Replacing devices 101

6. Install a new wireless-WAN card by doing the following:

a. Align the contact edge of the new wireless-WAN card with the key in the slot. Then carefully insert

the card into the slot at an angle of about 20 degrees 1. Pivot the card downward 2.

b. Install the screw to secure the wireless-WAN card in place 3. Connect the antenna cables to the

card 4. Ensure that you connect the orange cable to the main connector on the card, and the blue

cable to the auxiliary connector on the card.

c. Close the mylar film 5.

7. Reinstall the base cover assembly.

8. Turn the computer over. Connect the ac power adapter and all cables to the computer.

Replacing a replaceable memory module

Before you start, read “Important safety information” on page v and print the following instructions.

Increasing memory capacity is an effective way to make programs run faster. You can increase memory

capacity by replacing or adding a memory module.

Note: The operating speed of the memory module has dependency on the system configuration. In some

conditions, the memory module in your computer might not be able to operate at the maximum speed.

Attention:

• Before you start the replacement, touch a grounded metal object. This action reduces any static electricity

from your body. Static electricity might damage the memory module.

• Do not touch the contact edge of the memory module. Otherwise the memory module might get

damaged.

To replace a replaceable memory module, do the following:

1. Disable the built-in battery. See “Disabling the built-in battery” on page 98.

2. Ensure that the computer is turned off and disconnected from ac power and all cables.

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3. Close the computer display and turn the computer over.

4. Remove the base cover assembly. See “Replacing the base cover assembly” on page 99.

5. Open the latches on both sides of the memory slot at the same time 1, and then remove the memory

module 2.

6. Insert the new memory module into the memory slot at an angle of about 20 degrees 1. Pivot the

memory module downward until it snaps into place 2. Ensure that the memory module is firmly installed

in the memory slot and cannot be moved easily.

7. Reinstall the base cover assembly.

Chapter 9.Replacing devices 103

8. Turn the computer over. Connect the ac power adapter and all cables to the computer.

Replacing the M.2 solid-state drive

Before you start, read “Important safety information” on page v and print the following instructions.

Attention: The M.2 solid-state drive is sensitive. Inappropriate handling might cause damage and

permanent loss of data.

When handling the M.2 solid-state drive, observe the following guidelines:

• Replace the M.2 solid-state drive only for upgrade or repair. The M.2 solid-state drive is not designed for

frequent changes or replacement.

• Before replacing the M.2 solid-state drive, make a backup copy of all the data that you want to keep.

• Do not apply pressure to the M.2 solid-state drive.

• Do not touch the contact edge of the M.2 solid-state drive. Otherwise the M.2 solid-state drive might get

damaged.

• Do not make the M.2 solid-state drive subject to physical shocks or vibration. Put the M.2 solid-state drive

on a soft material, such as cloth, to absorb physical shocks.

To replace the M.2 solid-state drive, do the following:

1. Disable the built-in battery. See “Disabling the built-in battery” on page 98.

2. Ensure that the computer is turned off and disconnected from ac power and all cables.

3. Close the computer display and turn the computer over.

4. Remove the base cover assembly. See “Replacing the base cover assembly” on page 99.

5. Remove the screw that secures the M.2 solid-state drive 1. The M.2 solid-state drive is released from

the secured position and pivots upward. Then carefully remove the drive out of the slot 2.

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6. Install a new M.2 solid-state drive by doing the following:

a. Align the contact edge of the new M.2 solid-state drive with the key in the slot. Then carefully insert

the drive into the slot at an angle of about 20 degrees 1.

b. Pivot the M.2 solid-state drive downward 2.

c. Install the screw to secure the M.2 solid-state drive 3.

7. Reinstall the base cover assembly.

8. Turn the computer over. Connect the ac power adapter and all cables to the computer.

Replacing the keyboard

Before you start, read “Important safety information” on page v and print the following instructions.

Removing the keyboard

1. Disable the built-in battery. See “Disabling the built-in battery” on page 98.

2. Ensure that the computer is turned off and disconnected from ac power and all cables.

Chapter 9.Replacing devices 105

3. Take the tool out of the new keyboard package. Insert the tabs a and b into the slot between the

TrackPoint buttons and the trackpad 1. Slightly pivot the tool downward 2 to release the left and right

TrackPoint buttons. Then remove the two TrackPoint buttons 3.

4. Loosen the screws that secure the keyboard.

106 T480s User Guide

5. Insert the tabs c and d into the two dents near the two screw heads as shown.

6. Pivot the tool in the direction as shown to release the keyboard 1. Push the keyboard in the direction as

shown by arrows 2 to release the latches from the keyboard bezel.

7. Pivot the keyboard slightly upward as shown by arrow 1. Then turn the keyboard over as shown by

arrow 2.

Chapter 9.Replacing devices 107

8. Put the keyboard on the palm rest as shown and detach the connectors. Then remove the keyboard.

Installing the keyboard

1. Attach the connectors and turn the keyboard over as shown.

108 T480s User Guide

2. Insert the keyboard into the keyboard bezel as shown. Ensure that the front edge of the keyboard (the

edge that is close to the display) is under the keyboard bezel.

3. Slide the keyboard in the direction as shown by the arrows. Ensure that the latches are secured under

the keyboard frame.

Chapter 9.Replacing devices 109

4. Tighten the screws to secure the keyboard.

5. Take the new TrackPoint buttons out of the new keyboard package. Install the TrackPoint buttons as

shown.

6. Connect the ac power adapter and all cables to the computer.

110 T480s User Guide

Chapter 10. Getting support

This chapter provides information about getting help and support from Lenovo.

Before you contact Lenovo

Often, you can solve your computer problems by referring to the information in the explanations of error

codes, running diagnostic programs, or by consulting the Lenovo Support Web site.

Registering your computer

Downloading system updates

Downloading updated software might resolve problems you experience with your computer.

To download updated software, go to the following Web site and follow the instructions on the screen:

https://support.lenovo.com

Recording information

Before you talk to a Lenovo representative, record the following important information about your computer.

Recording problem symptoms and details

Collect the answers to the following questions before you call for help. Then, you are able to get help as

quickly as possible.

• What is the problem? Is it continuous or intermittent?

• Is there an error message? What is the error code, if any?

• What operating system are you using? Which version?

• Which software applications were running at the time of the problem?

• Can the problem be reproduced? If so, how?

Recording system information

The serial number label is on the bottom of your computer. Record the machine type and the serial number.

• What is the name of your Lenovo product?

• What is the machine type?

• What is the serial number?

Getting help and service

If you need help, service, technical assistance, or more information about Lenovo products, you will find a

wide variety of sources available from Lenovo to assist you.

Information about your computer and preinstalled software, if any, is available in the documentation that

comes with your computer or on the Lenovo Support Web site at https://support.lenovo.com. The

documentation includes printed books, online books, readme files, and help files.

Microsoft Service Packs are the latest software source for Windows product updates. They are available

through Web download (connection charges might apply) or through discs. For more specific information

and links, go to https://www.microsoft.com. Lenovo offers technical assistance with installation of, or

questions related to, Service Packs for your Lenovo-preinstalled Microsoft Windows product. For more

information, contact the Customer Support Center.

Lenovo Support Web site

Technical support information is available on the Lenovo Support Web site at https://support.lenovo.com.

This Web site is updated with the latest support information such as the following:

• Drivers and software

• Diagnostic solutions

• Product and service warranty

• Product and parts details

• User guides and manuals

• Knowledge base and frequently asked questions

Calling Lenovo

If you have tried to correct the problem yourself and still need help, during the warranty period, you can get

help and information by telephone through the Customer Support Center. The following services are

available during the warranty period:

• Problem determination - Trained personnel are available to assist you with determining if you have a

hardware problem and deciding what action is necessary to fix the problem.

• Lenovo hardware repair - If the problem is determined to be caused by Lenovo hardware under warranty,

trained service personnel are available to provide the applicable level of service.

• Engineering change management - Occasionally, there might be changes that are required after a product

has been sold. Lenovo or your reseller, if authorized by Lenovo, will make selected Engineering Changes

(ECs) that apply to your hardware available.

The following items are not covered:

• Replacement or use of parts not manufactured for or by Lenovo or nonwarranted parts

• Identification of software problem sources

• Configuration of UEFI BIOS as part of an installation or upgrade

• Changes, modifications, or upgrades to device drivers

• Installation and maintenance of network operating systems (NOS)

• Installation and maintenance of programs

For the terms and conditions of the Lenovo Limited Warranty that apply to your Lenovo hardware product,

see “Warranty information” in the Safety and Warranty Guide that comes with your computer.

If possible, be near your computer when you make your call. Ensure that you have downloaded the most

current drivers and system updates, run diagnostics, and recorded information before you call. When calling

for technical assistance, have the following information available:

• Machine type and model

• Serial numbers of your computer, monitor, and other components, or your proof of purchase

• Description of the problem

• Exact wording of any error messages

• Hardware and software configuration information for your system

112 T480s User Guide

Telephone numbers

For a list of the Lenovo Support phone numbers for your country or region, go to https://

pcsupport.lenovo.com/supportphonelist or refer to the Safety and Warranty Guide that comes with your

computer.

Note: Phone numbers are subject to change without notice. The latest phone numbers are available at

https://pcsupport.lenovo.com/supportphonelist. If the number for your country or region is not provided,

contact your Lenovo reseller or Lenovo marketing representative.

Purchasing additional services

During and after the warranty period, you can purchase additional services. Service availability and service

name might vary by country or region.

For more information about these services, go to https://www.lenovo.com/services.

Chapter 10.Getting support 113

114 T480s User Guide

Appendix A. Supplemental information about the Ubuntu

operating system

In limited countries or regions, Lenovo offers customers an option to order computers with the preinstalled

Ubuntu® operating system.

If the Ubuntu operating system is available on your computer, read the following information before you use

the computer. Ignore any information related to Windows-based programs, utilities, and Lenovo preinstalled

applications in this documentation.

Accessing the Lenovo Limited Warranty

This product is covered by the terms of the Lenovo Limited Warranty (LLW), version L505-0010-02 08/2011.

You can view the LLW in a number of languages from the following Web site. Read the Lenovo Limited

Warranty at:

https://www.lenovo.com/warranty/llw_02

The LLW also is preinstalled on the computer. To access the LLW, go to the following directory:

/usr/share/doc/lenovo-doc

If you cannot view the LLW either from the Web site or from your computer, contact your local Lenovo office

or reseller to obtain a printed version of the LLW.

Accessing the Ubuntu help system

The Ubuntu help system provides information about how to use the Ubuntu operating system. To access the

help system from the Unity, move your pointer to the Launch bar, and then click the Help icon. If you cannot

find the Help icon from the Launch bar, click the Search icon, and type Help to search it.

To learn more about the Ubuntu operating system, go to:

https://www.ubuntu.com

Getting support information

If you need help, service, technical assistance, or more information about the Ubuntu operating system or

other applications, contact the provider of the Ubuntu operating system or the provider of the application. If

you need the service and support for hardware components shipped with your computer, contact Lenovo.

For more information about how to contact Lenovo, refer to the User Guide and Safety and Warranty Guide.

To access the latest User Guide and Safety and Warranty Guide, go to:

https://support.lenovo.com

116 T480s User Guide

Appendix B. Regulatory information

This chapter provides regulatory and compliance information about Lenovo products.

Certification-related information

Product name: ThinkPad T480s

Compliance ID: TP00092A

Machine types: 20L7 and 20L8

The latest compliance information is available at:

https://www.lenovo.com/compliance

Wireless-related information

This topic provides wireless-related information about Lenovo products.

Wireless interoperability

Wireless-LAN card is designed to be interoperable with any wireless-LAN product that is based on Direct

Sequence Spread Spectrum (DSSS), Complementary Code Keying (CCK), and/or Orthogonal Frequency

Division Multiplexing (OFDM) radio technology, and is compliant to:

• The 802.11b/g Standard, 802.11a/b/g, 802.11n, or 802.11ac on wireless-LANs, as defined and approved

by the Institute of Electrical and Electronics Engineers.

• The Wireless Fidelity (Wi-Fi®) certification as defined by the Wi-Fi Alliance®.

Usage environment and your health

This computer contains integrated wireless cards that operate within the guidelines identified by radio

frequency (RF) safety standards and recommendations; therefore, Lenovo believes that this product is safe

for use by consumers. These standards and recommendations reflect the consensus of the worldwide

scientific community, and result from deliberations of panels and committees of scientists, who continually

review and interpret the extensive research literature.

In some situations or environments, the use of wireless devices might be restricted by the proprietor of a

building or responsible representatives of an organization. For example, these situations and areas might

include the following:

• On board of airplanes, in hospitals or near petrol stations, blasting areas (with electro-explosive devices),

medical implants or body-worn electronic medical devices, such as pace makers.

• In any other environment where the risk of interference to other devices or services is perceived or

identified as harmful.

If you are uncertain of the policy that applies to the use of wireless devices in a specific area (such as an

airport or hospital), you are encouraged to ask for authorization to use a wireless device prior to turning on

the computer.

Locating the UltraConnect wireless antennas

ThinkPad notebook computers feature an integrated UltraConnect™ wireless antenna system built into the

display for optimal reception, enabling wireless communication wherever you are.

The following illustration shows the antennas locations of your computer:

1 Wireless-LAN antenna (main)

2 Wireless-WAN antenna (main, available on some models)

3 Wireless-WAN antenna (auxiliary, available on some models)

4 Wireless-LAN antenna (auxiliary)

Wireless-radio compliance information

Computer models equipped with wireless communications comply with the radio frequency and safety

standards of any country or region in which it has been approved for wireless use.

Brazil wireless-radio compliance information

Este equipamento não tem direito à proteção contra interferência prejudicial e não pode causar interferência

em sistemas devidamente autorizados.

This equipment is not protected against harmful interference and may not cause interference with duly

authorized systems.

Mexico wireless-radio compliance information

Advertencia: En Mexico la operación de este equipo estásujeta a las siguientes dos condiciones: (1) es

posible que este equipo o dispositivo no cause interferencia perjudicial y (2) este equipo o dispositivo debe

aceptar cualquier interferencia, incluyendo la que pueda causar su operación no deseada.

Locating wireless regulatory notices

For more information about the wireless regulatory notices, refer to the Regulatory Notice shipped with your

computer.

118 T480s User Guide

If your computer is shipped without the Regulatory Notice, you can find it on the Web site at:

https://support.lenovo.com

TCO certification

To obtain the TCO certification information for your computer, go to:

https://www.lenovo.com/tco-cert

Export classification notice

This product is subject to the United States Export Administration Regulations (EAR) and has an Export

Classification Control Number (ECCN) of 5A992.c. It can be re-exported except to any of the embargoed

countries in the EAR E1 country list.

Electromagnetic emission notices

Federal Communications Commission (FCC) Supplier’s Declaration of

Conformity

The following information refers to ThinkPad T480s, machine types: 20L7 and 20L8.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to

Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful

interference in a residential installation. This equipment generates, uses, and can radiate radio frequency

energy and, if not installed and used in accordance with the instructions, may cause harmful interference to

radio communications. However, there is no guarantee that interference will not occur in a particular

installation. If this equipment does cause harmful interference to radio or television reception, which can be

determined by turning the equipment off and on, the user is encouraged to try to correct the interference by

one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult an authorized dealer or service representative for help.

Lenovo is not responsible for any radio or television interference caused by using other than recommended

cables and connectors or by unauthorized changes or modifications to this equipment. Unauthorized

changes or modifications could void the user’s authority to operate the equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1)

this device may not cause harmful interference, and (2) this device must accept any interference received,

including interference that may cause undesired operation.

Responsible Party:

Lenovo (United States) Incorporated

7001 Development Drive

Morrisville, NC 27560

Email: FCC@lenovo.com

Appendix B. Regulatory information 119

Industry Canada Class B emission compliance statement

CAN ICES-3(B)/NMB-3(B)

European Union conformity

EU Contact: Lenovo, Einsteinova 21, 851 01 Bratislava, Slovakia

EMC Directive Statement: This product is in conformity with the protection requirements of EU Council

EMC Directive 2014/30/EU on the approximation of the laws of the Member States relating to

electromagnetic compatibility.

This product has been tested and found to comply with the limits for Class B equipment according to

European Standards harmonized in the Directives in compliance. The Class B requirements for equipment

are intended to offer adequate protection to broadcast services within residential environments.

Radio Equipment Directive Statement: This product is in conformity with all the requirements and essential

norms that apply to EU Council Radio Equipment Directive 2014/53/EU on the approximation of the laws of

the Member States relating to radio equipment. The full text of the system EU declaration of conformity and

the EU wireless module declarations are available at the following Internet addresses:

• For notebook computers: https://www.lenovo.com/eu-doc-notebooks

• For tablets: https://www.lenovo.com/eu-doc-tablets

Lenovo cannot accept responsibility for any failure to satisfy the protection requirements resulting from a

non-recommended modification of the product, including the installation of option cards from other

manufacturers. This product has been tested and found to comply with the limits for Class B equipment

according to European Standards harmonized in the Directives in compliance. The limits for Class B

equipment were derived for typical residential environments to provide reasonable protection against

interference with licensed communication devices.

German Class B compliance statement

Hinweis zur Einhaltung der Klasse B zur elektromagnetischen Verträglichkeit

Dieses Produkt entspricht den Schutzanforderungen der EU-Richtlinie zur elektromagnetischen

Verträglichkeit Angleichung der Rechtsvorschriften über die elektromagnetische Verträglichkeit in den EU-

Mitgliedsstaaten und hält die Grenzwerte der Klasse B der Norm gemäß Richtlinie.

Um dieses sicherzustellen, sind die Geräte wie in den Handbüchern beschrieben zu installieren und zu

betreiben. Des Weiteren dürfen auch nur von der Lenovo empfohlene Kabel angeschlossen werden. Lenovo

übernimmt keine Verantwortung für die Einhaltung der Schutzanforderungen, wenn das Produkt ohne

Zustimmung der Lenovo verändert bzw. wenn Erweiterungskomponenten von Fremdherstellern ohne

Empfehlung der Lenovo gesteckt/eingebaut werden.

Zulassungsbescheinigung laut dem Deutschen Gesetz über die elektromagnetische Verträglichkeit von

Betriebsmitteln, EMVG vom 20. Juli 2007 (früher Gesetz über die elektromagnetische Verträglichkeit von

Geräten), bzw. der EU Richtlinie 2014/30/EU, der EU Richtlinie 2014/53/EU Artikel 3.1b), für Geräte der

Klasse B.

120 T480s User Guide

Dieses Gerät ist berechtigt, in Übereinstimmung mit dem Deutschen EMVG das EG-Konformitätszeichen -

CE - zu führen. Verantwortlich für die Konformitätserklärung nach Paragraf 5 des EMVG ist die Lenovo

(Deutschland) GmbH, Meitnerstr. 9, D-70563 Stuttgart.

Japan VCCI Class B compliance statement

Japan compliance statement for products which connect to the power

mains with rated current less than or equal to 20 A per phase

Japan notice for ac power cord

The ac power cord shipped with your product can be used only for this specific product. Do not use the ac

power cord for other devices.

Lenovo product service information for Taiwan

Taiwan precautionary vision statement

警語：使用過度恐傷害視力

注意事項：

• 使用30分鐘請休息10分鐘。

• 2歲以下幼兒不看螢幕，2歲以上每天看螢幕不要超過1小時。

Eurasian compliance mark

Brazil audio notice

Ouvir sons com mais de 85 decibéis por longos períodos pode provocar danos ao sistema auditivo.

Appendix B. Regulatory information 121

122 T480s User Guide

Appendix C. WEEE and recycling statements of countries and

regions

This chapter provides environmental information about Lenovo products.

General recycling information

Lenovo encourages owners of information technology (IT) equipment to responsibly recycle their equipment

when it is no longer needed. Lenovo offers a variety of programs and services to assist equipment owners in

recycling their IT products. For information about recycling Lenovo products, go to:

https://www.lenovo.com/recycling

The latest environmental information about our products is available at:

https://www.lenovo.com/ecodeclaration

Important WEEE information

The WEEE marking on Lenovo products applies to countries with WEEE and e-waste regulations (for

example, the European WEEE Directive, India E-Waste Management Rules). Appliances are labeled in

accordance with local regulations concerning waste electrical and electronic equipment (WEEE). These

regulations determine the framework for the return and recycling of used appliances as applicable within

each geography. This label is applied to various products to indicate that the product is not to be thrown

away, but rather put in the established collection systems for reclaiming these end of life products.

Users of electrical and electronic equipment (EEE) with the WEEE marking must not dispose of end of life

EEE as unsorted municipal waste, but use the collection framework available to them for the return, recycle,

and recovery of WEEE and to minimize any potential effects of EEE on the environment and human health

due to the presence of hazardous substances. Lenovo electrical and electronic equipment (EEE) may contain

parts and components, which at end-of-life might qualify as hazardous waste.

EEE and waste electrical and electronic equipment (WEEE) can be delivered free of charge to the place of

sale or any distributor that sells electrical and electronic equipment of the same nature and function as the

used EEE or WEEE.

For additional WEEE information, go to:

https://www.lenovo.com/recycling

WEEE information for Hungary

Lenovo, as a producer, bears the cost incurred in connection with the fulfillment of Lenovo’s obligations

under Hungary Law No. 197/2014 (VIII.1.) subsections (1)-(5) of section 12.

Japan recycling statements

Collecting and recycling a disused Lenovo computer or monitor

If you are a company employee and need to dispose of a Lenovo computer or monitor that is the property of

the company, you must do so in accordance with the Law for Promotion of Effective Utilization of Resources.

Computers and monitors are categorized as industrial waste and should be properly disposed of by an

industrial waste disposal contractor certified by a local government. In accordance with the Law for

Promotion of Effective Utilization of Resources, Lenovo Japan provides, through its PC Collecting and

Recycling Services, for the collecting, reuse, and recycling of disused computers and monitors. For details,

visit the Lenovo Web site at:

https://www.lenovo.com/recycling/japan

Pursuant to the Law for Promotion of Effective Utilization of Resources, the collecting and recycling of home-

used computers and monitors by the manufacturer was begun on October 1, 2003. This service is provided

free of charge for home-used computers sold after October 1, 2003. For details, go to:

https://www.lenovo.com/recycling/japan

Disposing of Lenovo computer components

Some Lenovo computer products sold in Japan may have components that contain heavy metals or other

environmental sensitive substances. To properly dispose of disused components, such as a printed circuit

board or drive, use the methods described above for collecting and recycling a disused computer or monitor.

Disposing of disused lithium batteries from Lenovo computers

A button-shaped lithium battery is installed inside your Lenovo computer to provide power to the computer

clock while the computer is off or disconnected from the main power source. If you need to replace it with a

new one, contact your place of purchase or contact Lenovo for service. If you need to dispose of a disused

lithium battery, insulate it with vinyl tape, contact your place of purchase or an industrial-waste-disposal

operator, and follow their instructions.

Disposal of a lithium battery must comply with local ordinances and regulations.

Disposing of a disused battery from Lenovo notebook computers

Your Lenovo notebook computer has a lithium ion battery or a nickel metal hydride battery. If you are a

company employee who uses a Lenovo notebook computer and need to dispose of a battery, contact the

proper person in Lenovo sales, service, or marketing, and follow that person's instructions. You also can

refer to the instructions at:

https://www.lenovo.com/jp/ja/environment/recycle/battery/

If you use a Lenovo notebook computer at home and need to dispose of a battery, you must comply with

local ordinances and regulations. You also can refer to the instructions at:

https://www.lenovo.com/jp/ja/environment/recycle/battery/

Recycling information for Brazil

Declarações de Reciclagem no Brasil

Descarte de um Produto Lenovo Fora de Uso

124 T480s User Guide

Equipamentos elétricos e eletrônicos não devem ser descartados em lixo comum, mas enviados à pontos de

coleta, autorizados pelo fabricante do produto para que sejam encaminhados e processados por empresas

especializadas no manuseio de resíduos industriais, devidamente certificadas pelos orgãos ambientais, de

acordo com a legislação local.

A Lenovo possui um canal específico para auxiliá-lo no descarte desses produtos. Caso você possua um

produto Lenovo em situação de descarte, ligue para o nosso SAC ou encaminhe um e-mail para:

reciclar@lenovo.com, informando o modelo, número de série e cidade, a fim de enviarmos as instruções

para o correto descarte do seu produto Lenovo.

Battery recycling information for the European Union

Notice: This mark applies only to countries within the European Union (EU).

Batteries or packaging for batteries are labeled in accordance with European Directive 2006/66/EC

concerning batteries and accumulators and waste batteries and accumulators. The Directive determines the

framework for the return and recycling of used batteries and accumulators as applicable throughout the

European Union. This label is applied to various batteries to indicate that the battery is not to be thrown

away, but rather reclaimed upon end of life per this Directive.

In accordance with the European Directive 2006/66/EC, batteries and accumulators are labeled to indicate

that they are to be collected separately and recycled at end of life. The label on the battery may also include

a chemical symbol for the metal concerned in the battery (Pb for lead, Hg for mercury, and Cd for cadmium).

Users of batteries and accumulators must not dispose of batteries and accumulators as unsorted municipal

waste, but use the collection framework available to customers for the return, recycling, and treatment of

batteries and accumulators. Customer participation is important to minimize any potential effects of batteries

and accumulators on the environment and human health due to the potential presence of hazardous

substances.

Before placing electrical and electronic equipment (EEE) in the waste collection stream or in waste collection

facilities, the end user of equipment containing batteries and/or accumulators must remove those batteries

and accumulators for separate collection.

Disposing of lithium batteries and battery packs from Lenovo products

A coin-cell type lithium battery might be installed inside your Lenovo product. You can find details about the

battery in the product documentation. If the battery needs to be replaced, contact your place of purchase or

contact Lenovo for service. If you need to dispose of a lithium battery, insulate it with vinyl tape, contact your

place of purchase or a waste-disposal operator, and follow their instructions.

Disposing of battery packs from Lenovo products

Your Lenovo device might contain a lithium-ion battery pack or a nickel metal hydride battery pack. You can

find details on the battery pack in the product documentation. If you need to dispose of a battery pack,

insulate it with vinyl tape, contact Lenovo sales, service, or your place of purchase, or a waste-disposal

operator, and follow their instructions. You also can refer to the instructions provided in the user guide for

your product.

Appendix C. WEEE and recycling statements of countries and regions 125

For proper collection and treatment, go to:

https://www.lenovo.com/lenovo/environment

Battery recycling information for Taiwan

Battery recycling information for the United States and Canada

Recycling information for China

126 T480s User Guide

Appendix D. Restriction of Hazardous Substances (RoHS)

Directive of countries and regions

The latest environmental information about Lenovo products is available at:

https://www.lenovo.com/ecodeclaration

European Union RoHS

This Lenovo product, with included parts (cables, cords, and so on) meets the requirements of Directive

2011/65/EU on the restriction of the use of certain hazardous substances in electrical and electronic

equipment ("RoHS recast" or "RoHS 2").

For more information about Lenovo worldwide compliance on RoHS, go to:

https://www.lenovo.com/rohs-communication

Turkish RoHS

The Lenovo product meets the requirements of the Republic of Turkey Directive on the Restriction of the Use

of Certain Hazardous Substances in Waste Electrical and Electronic Equipment (WEEE).

Ukraine RoHS

India RoHS

RoHS compliant as per E-Waste (Management) Rules.

China RoHS

The information in the following table is applicable to products manufactured on or after January 1, 2015 for

sale in the People’s Republic of China.

128 T480s User Guide

Taiwan RoHS

Appendix D. Restriction of Hazardous Substances (RoHS) Directive of countries and regions 129

130 T480s User Guide

Appendix E. ENERGY STAR model information

ENERGY STAR® is a joint program of the U.S. Environmental Protection Agency and the U.S. Department of

Energy aimed at saving money and protecting the environment through energy efficient products and

practices.

Lenovo is proud to offer our customers products with the ENERGY STAR qualified designation. You might

find an ENERGY STAR mark affixed on the computer or displayed on the power settings interface. Lenovo

computers of the following machine types, if carry an ENERGY STAR mark, have been designed and tested

to conform to the ENERGY STAR program requirements for computers.

20L7 and 20L8

By using ENERGY STAR qualified products and taking advantage of the power-management features of the

computer, you can help reduce the consumption of electricity. Reduced electrical consumption can

contribute to potential financial savings, a cleaner environment, and the reduction of greenhouse gas

emissions.

For more information about ENERGY STAR, go to:

https://www.energystar.gov

Lenovo encourages you to make efficient use of energy an integral part of your day-to-day operations. To

help in this endeavor, Lenovo has preset the following power-management features to take effect when the

computer has been inactive for a specified length of time:

Power plan: Default (when plugged into ac power)

• Turn off the display: After 10 minutes

• Put the computer to sleep: After 30 minutes

To awaken the computer from sleep mode, press the Fn key on your keyboard. For more information about

these settings, see the Windows help information on the computer.

The Wake on LAN function is enabled when your Lenovo computer is shipped from the factory, and the

setting remains valid even when the computer is in sleep mode. If you do not need to have Wake on LAN

enabled while the computer is in sleep mode, you can reduce the power consumption and prolong the time

in sleep mode, by disabling the setting of Wake on LAN for sleep mode.

To disable the setting of Wake on LAN for sleep mode, do the following:

1. Go to Control Panel and view Control Panel by Category. Click Hardware and Sound ➙ Device

Manager.

2. In the Device Manager window, expand Network adapters.

3. Right-click your network adapter device, and click Properties.

4. Click the Power Management tab.

5. Clear the Allow this device to wake the computer check box.

6. Click OK.

132 T480s User Guide

Appendix F. Notices

Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult

your local Lenovo representative for information on the products and services currently available in your

area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that

Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service

that does not infringe any Lenovo intellectual property right may be used instead. However, it is the user's

responsibility to evaluate and verify the operation of any other product, program, or service.

Lenovo may have patents or pending patent programs covering subject matter described in this document.

The furnishing of this document does not give you any license to these patents. You can send license

inquiries, in writing, to:

Lenovo (United States), Inc.

1009 Think Place - Building One

Morrisville, NC 27560

U.S.A.

Attention: Lenovo Director of Licensing

LENOVO PROVIDES THIS PUBLICATION "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS

OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT,

MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions do not allow

disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply to

you.

This information could include technical inaccuracies or typographical errors. Changes are periodically made

to the information herein; these changes will be incorporated in new editions of the publication. Lenovo may

make improvements and/or changes in the product(s) and/or the application(s) described in this publication

at any time without notice.

The products described in this document are not intended for use in implantation or other life support

applications where malfunction may result in injury or death to persons. The information contained in this

document does not affect or change Lenovo product specifications or warranties. Nothing in this document

shall operate as an express or implied license or indemnity under the intellectual property rights of Lenovo or

third parties. All information contained in this document was obtained in specific environments and is

presented as an illustration. The result obtained in other operating environments may vary.

Lenovo may use or distribute any of the information you supply in any way it believes appropriate without

incurring any obligation to you.

Any references in this publication to non-Lenovo Web sites are provided for convenience only and do not in

any manner serve as an endorsement of those Web sites. The materials at those Web sites are not part of the

materials for this Lenovo product, and use of those Web sites is at your own risk.

Any performance data contained herein was determined in a controlled environment. Therefore, the result

obtained in other operating environments may vary significantly. Some measurements may have been made

on development-level systems and there is no guarantee that these measurements will be the same on

generally available systems. Furthermore, some measurements may have been estimated through

extrapolation. Actual results may vary. Users of this document should verify the applicable data for their

specific environment.

This document is copyrighted by Lenovo and is not covered by any open source license, including any Linux

agreement(s) which may accompany software included with this product. Lenovo may update this document

at any time without notice.

To obtain the most up-to-date documentation for your computer, go to:

https://support.lenovo.com

134 T480s User Guide

Appendix G. Trademarks

LENOVO, LENOVO logo, THINKPAD, THINKPAD logo, TRACKPOINT, and ULTRACONNECT are trademarks

of Lenovo. Intel, Intel SpeedStep, Optane, and Thunderbolt are trademarks of Intel Corporation or its

subsidiaries in the U.S. and/or other countries. Microsoft, Windows, Direct3D, BitLocker, and Cortana are

trademarks of the Microsoft group of companies. Mini DisplayPort (mDP) and DisplayPort are trademarks of

the Video Electronics Standards Association. Ubuntu is a registered trademark of Canonical Ltd. The terms

HDMI and HDMI High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI

Licensing LLC in the United States and other countries. Wi-Fi, Wi-Fi Alliance, WiGig, and Miracast are

registered trademarks of Wi-Fi Alliance. NVIDIA is a registered trademark of NVIDIA Corporation. USB-C is a

2018 Lenovo.

136 T480s User Guide

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Lenovo T480s User Manual

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