DELL 3502 User Manual

Displayed below is the user manual for 3502 by DELL which is a product in the Notebooks category. This manual has pages.

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Inspiron 3502

Service Manual

Regulatory Model: P90F

Regulatory Type: P90F003

August 2020

Rev. A03

Notes, cautions, and warnings

NOTE: A NOTE indicates important information that helps you make better use of your product.

CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid

the problem.

WARNING: A WARNING indicates a potential for property damage, personal injury, or death.

Other trademarks may be trademarks of their respective owners.

Chapter 1: Working inside your computer...................................................................................... 6

Before working inside your computer.............................................................................................................................6

Safety instructions.............................................................................................................................................................. 6

Electrostatic discharge—ESD protection......................................................................................................................7

ESD field service kit ........................................................................................................................................................... 7

Transporting sensitive components................................................................................................................................ 8

After working inside your computer................................................................................................................................8

Chapter 2: Removing and installing components........................................................................... 9

Recommended tools........................................................................................................................................................... 9

Screw list............................................................................................................................................................................... 9

Major components of Inspiron 3502............................................................................................................................. 10

Base cover........................................................................................................................................................................... 12

Removing the base cover...........................................................................................................................................12

Installing the base cover.............................................................................................................................................14

Solid-state drive................................................................................................................................................................. 16

Removing the M.2 2230 solid-state drive..............................................................................................................16

Installing the M.2 2230 solid-state drive................................................................................................................ 17

Removing the M.2 2280 solid-state drive..............................................................................................................18

Installing the M.2 2280 solid-state drive................................................................................................................19

Memory module................................................................................................................................................................. 20

Removing the memory module.................................................................................................................................20

Installing the memory module....................................................................................................................................21

Wireless card...................................................................................................................................................................... 22

Removing the wireless card...................................................................................................................................... 22

Installing the wireless card........................................................................................................................................ 23

Battery................................................................................................................................................................................. 25

Lithium-ion battery precautions...............................................................................................................................25

Removing the battery.................................................................................................................................................25

Installing the battery...................................................................................................................................................26

Hard drive............................................................................................................................................................................27

Removing the hard drive............................................................................................................................................27

Installing the hard drive..............................................................................................................................................28

I/O board.............................................................................................................................................................................30

Removing the I/O board............................................................................................................................................ 30

Installing the I/O board............................................................................................................................................... 31

Coin-cell battery................................................................................................................................................................ 32

Removing the coin-cell battery................................................................................................................................32

Installing the coin-cell battery.................................................................................................................................. 32

Speakers.............................................................................................................................................................................. 33

Removing the speakers..............................................................................................................................................33

Installing the speakers................................................................................................................................................ 34

Heat sink..............................................................................................................................................................................35

Removing the heat sink............................................................................................................................................. 35

Contents

Contents 3

Installing the heat sink................................................................................................................................................36

Power button with optional fingerprint reader...........................................................................................................37

Removing the power-button with optional fingerprint reader..........................................................................37

Installing the power-button with optional fingerprint reader........................................................................... 38

Fingerprint-reader board................................................................................................................................................. 39

Removing the fingerprint-reader board................................................................................................................. 39

Installing the fingerprint-reader board................................................................................................................... 39

Display assembly................................................................................................................................................................40

Removing the display assembly............................................................................................................................... 40

Installing the display assembly..................................................................................................................................42

Display bezel....................................................................................................................................................................... 43

Removing the display bezel.......................................................................................................................................43

Installing the display bezel.........................................................................................................................................44

Display panel.......................................................................................................................................................................45

Removing the display panel...................................................................................................................................... 45

Installing the display panel......................................................................................................................................... 47

Camera.................................................................................................................................................................................49

Removing the camera.................................................................................................................................................49

Installing the camera...................................................................................................................................................50

Touchpad............................................................................................................................................................................. 51

Removing the touchpad............................................................................................................................................. 51

Installing the touchpad...............................................................................................................................................52

System board..................................................................................................................................................................... 53

Removing the system board ....................................................................................................................................53

Installing the system board ...................................................................................................................................... 56

Power-adapter port..........................................................................................................................................................58

Removing the power-adapter port......................................................................................................................... 58

Installing the power-adapter port............................................................................................................................59

Palm-rest and keyboard assembly................................................................................................................................ 60

Removing the palm-rest and keyboard assembly................................................................................................60

Installing the palm-rest and keyboard assembly................................................................................................... 61

Chapter 3: Drivers and downloads............................................................................................... 63

Chapter 4: System setup............................................................................................................. 64

Entering BIOS setup program........................................................................................................................................ 64

Navigation keys..................................................................................................................................................................64

One time boot menu.........................................................................................................................................................65

System setup options.......................................................................................................................................................65

Main................................................................................................................................................................................ 65

Advanced.......................................................................................................................................................................66

Security.......................................................................................................................................................................... 67

Boot................................................................................................................................................................................ 69

Exit..................................................................................................................................................................................69

System and setup password...........................................................................................................................................69

Assigning a system setup password....................................................................................................................... 70

Deleting or changing an existing system setup password................................................................................. 70

Clearing CMOS settings............................................................................................................................................ 70

Clearing BIOS (System Setup) and System passwords......................................................................................71

4Contents

Updating the BIOS............................................................................................................................................................. 71

Updating the BIOS in Windows.................................................................................................................................71

Updating the BIOS using the USB drive in Windows...........................................................................................71

Updating the BIOS from the F12 One-Time boot menu.....................................................................................72

Chapter 5: Troubleshooting......................................................................................................... 73

Handling swollen Lithium-ion batteries........................................................................................................................ 73

Locate the Service Tag or Express Service Code of your Dell computer ..............................................73

System diagnostic lights.................................................................................................................................................. 74

SupportAssist | On-board Diagnostics......................................................................................................................... 75

Recovering the operating system................................................................................................................................. 75

Backup media and recovery options.............................................................................................................................75

WiFi power cycle............................................................................................................................................................... 75

Drain residual flea power (perform hard reset)......................................................................................................... 76

Chapter 6: Getting help and contacting Dell................................................................................ 77

Contents 5

Working inside your computer

Before working inside your computer

About this task

NOTE: The images in this document may differ from your computer depending on the configuration you ordered.

Steps

1. Save and close all open files and exit all open applications.

2. Shut down your computer. Click Start > Power > Shut down.

NOTE: If you are using a different operating system, see the documentation of your operating system for shut-down

instructions.

3. Disconnect your computer and all attached devices from their electrical outlets.

4. Disconnect all attached network devices and peripherals, such as keyboard, mouse, and monitor from your computer.

CAUTION: To disconnect a network cable, first unplug the cable from your computer and then unplug the

cable from the network device.

5. Remove any media card and optical disc from your computer, if applicable.

Safety instructions

Use the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless

otherwise noted, each procedure included in this document assumes that you have read the safety information that shipped

with your computer.

WARNING: Before working inside your computer, read the safety information that is shipped with your

computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/

regulatory_compliance.

WARNING: Disconnect your computer from all power sources before opening the computer cover or panels.

After you finish working inside the computer, replace all covers, panels, and screws before connecting your

computer to an electrical outlet.

CAUTION: To avoid damaging the computer, ensure that the work surface is flat, dry, and clean.

CAUTION: To avoid damaging the components and cards, handle them by their edges, and avoid touching the

pins and the contacts.

CAUTION: You should only perform troubleshooting and repairs as authorized or directed by the Dell technical

assistance team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. See the

safety instructions that is shipped with the product or at www.dell.com/regulatory_compliance.

CAUTION: Before touching anything inside your computer, ground yourself by touching an unpainted metal

surface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metal

surface to dissipate static electricity which could harm internal components.

6 Working inside your computer

CAUTION: When you disconnect a cable, pull it by its connector or its pull tab, not the cable itself. Some cables

have connectors with locking tabs or thumbscrews that you must disengage before disconnecting the cable.

When disconnecting cables, keep them evenly aligned to avoid bending the connector pins. When connecting

cables, ensure that the ports and the connectors are correctly oriented and aligned.

CAUTION: Press and eject any installed card from the media-card reader.

CAUTION: Exercise caution when handling Lithium-ion batteries in laptops. Swollen batteries should not be used

and should be replaced and disposed properly.

NOTE: The color of your computer and certain components may appear differently than shown in this document.

Electrostatic discharge—ESD protection

ESD is a major concern when you handle electronic components, especially sensitive components such as expansion cards,

processors, memory DIMMs, and system boards. Very slight charges can damage circuits in ways that may not be obvious, such

as intermittent problems or a shortened product life span. As the industry pushes for lower power requirements and increased

density, ESD protection is an increasing concern.

Due to the increased density of semiconductors used in recent Dell products, the sensitivity to static damage is now higher than

in previous Dell products. For this reason, some previously approved methods of handling parts are no longer applicable.

Two recognized types of ESD damage are catastrophic and intermittent failures.

●Catastrophic – Catastrophic failures represent approximately 20 percent of ESD-related failures. The damage causes

an immediate and complete loss of device functionality. An example of catastrophic failure is a memory DIMM that has

received a static shock and immediately generates a "No POST/No Video" symptom with a beep code emitted for missing or

nonfunctional memory.

●Intermittent – Intermittent failures represent approximately 80 percent of ESD-related failures. The high rate of

intermittent failures means that most of the time when damage occurs, it is not immediately recognizable. The DIMM

receives a static shock, but the tracing is merely weakened and does not immediately produce outward symptoms related to

the damage. The weakened trace may take weeks or months to melt, and in the meantime may cause degradation of memory

integrity, intermittent memory errors, etc.

The more difficult type of damage to recognize and troubleshoot is the intermittent (also called latent or "walking wounded")

failure.

Perform the following steps to prevent ESD damage:

●Use a wired ESD wrist strap that is properly grounded. The use of wireless anti-static straps is no longer allowed; they do not

provide adequate protection. Touching the chassis before handling parts does not ensure adequate ESD protection on parts

with increased sensitivity to ESD damage.

●Handle all static-sensitive components in a static-safe area. If possible, use anti-static floor pads and workbench pads.

●When unpacking a static-sensitive component from its shipping carton, do not remove the component from the anti-static

packing material until you are ready to install the component. Before unwrapping the anti-static packaging, ensure that you

discharge static electricity from your body.

●Before transporting a static-sensitive component, place it in an anti-static container or packaging.

ESD field service kit

The unmonitored Field Service kit is the most commonly used service kit. Each Field Service kit includes three main components:

anti-static mat, wrist strap, and bonding wire.

Components of an ESD field service kit

The components of an ESD field service kit are:

●Anti-Static Mat – The anti-static mat is dissipative and parts can be placed on it during service procedures. When using an

anti-static mat, your wrist strap should be snug and the bonding wire should be connected to the mat and to any bare metal

on the system being worked on. Once deployed properly, service parts can be removed from the ESD bag and placed directly

on the mat. ESD-sensitive items are safe in your hand, on the ESD mat, in the system, or inside a bag.

Working inside your computer 7

●Wrist Strap and Bonding Wire – The wrist strap and bonding wire can be either directly connected between your wrist

and bare metal on the hardware if the ESD mat is not required, or connected to the anti-static mat to protect hardware that

is temporarily placed on the mat. The physical connection of the wrist strap and bonding wire between your skin, the ESD

mat, and the hardware is known as bonding. Use only Field Service kits with a wrist strap, mat, and bonding wire. Never

use wireless wrist straps. Always be aware that the internal wires of a wrist strap are prone to damage from normal wear

and tear, and must be checked regularly with a wrist strap tester in order to avoid accidental ESD hardware damage. It is

recommended to test the wrist strap and bonding wire at least once per week.

●ESD Wrist Strap Tester – The wires inside of an ESD strap are prone to damage over time. When using an unmonitored

kit, it is a best practice to regularly test the strap prior to each service call, and at a minimum, test once per week. A

wrist strap tester is the best method for doing this test. If you do not have your own wrist strap tester, check with your

regional office to find out if they have one. To perform the test, plug the wrist-strap's bonding-wire into the tester while it is

strapped to your wrist and push the button to test. A green LED is lit if the test is successful; a red LED is lit and an alarm

sounds if the test fails.

●Insulator Elements – It is critical to keep ESD sensitive devices, such as plastic heat sink casings, away from internal parts

that are insulators and often highly charged.

●Working Environment – Before deploying the ESD Field Service kit, assess the situation at the customer location. For

example, deploying the kit for a server environment is different than for a desktop or portable environment. Servers are

typically installed in a rack within a data center; desktops or portables are typically placed on office desks or cubicles. Always

look for a large open flat work area that is free of clutter and large enough to deploy the ESD kit with additional space to

accommodate the type of system that is being repaired. The workspace should also be free of insulators that can cause an

ESD event. On the work area, insulators such as Styrofoam and other plastics should always be moved at least 12 inches or

30 centimeters away from sensitive parts before physically handling any hardware components

●ESD Packaging – All ESD-sensitive devices must be shipped and received in static-safe packaging. Metal, static-shielded

bags are preferred. However, you should always return the damaged part using the same ESD bag and packaging that the

new part arrived in. The ESD bag should be folded over and taped shut and all the same foam packing material should be

used in the original box that the new part arrived in. ESD-sensitive devices should be removed from packaging only at an

ESD-protected work surface, and parts should never be placed on top of the ESD bag because only the inside of the bag is

shielded. Always place parts in your hand, on the ESD mat, in the system, or inside an anti-static bag.

●Transporting Sensitive Components – When transporting ESD sensitive components such as replacement parts or parts

to be returned to Dell, it is critical to place these parts in anti-static bags for safe transport.

ESD protection summary

It is recommended that all field service technicians use the traditional wired ESD grounding wrist strap and protective anti-static

mat at all times when servicing Dell products. In addition, it is critical that technicians keep sensitive parts separate from all

insulator parts while performing service and that they use anti-static bags for transporting sensitive components.

Transporting sensitive components

When transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place

these parts in anti-static bags for safe transport.

After working inside your computer

About this task

CAUTION: Leaving stray or loose screws inside your computer may severely damage your computer.

Steps

1. Replace all screws and ensure that no stray screws remain inside your computer.

2. Connect any external devices, peripherals, or cables you removed before working on your computer.

3. Replace any media cards, discs, or any other parts that you removed before working on your computer.

4. Connect your computer and all attached devices to their electrical outlets.

5. Turn on your computer.

8Working inside your computer

Removing and installing components

NOTE: The images in this document may differ from your computer depending on the configuration you ordered.

Recommended tools

The procedures in this document may require the following tools:

●Phillips screwdriver #0

●Phillips screwdriver #1

●Plastic scribe

Screw list

NOTE: When removing screws from a component, it is recommended to note the screw type, the quantity of screws, and

then place them in a screw storage box. This is to ensure that the correct number of screws and correct screw type is

restored when the component is replaced.

NOTE: Some computers have magnetic surfaces. Ensure that the screws are not left attached to such surfaces when

replacing a component.

NOTE: Screw color may vary with the configuration ordered.

Table 1. Screw list

Component Secured to Screw type Quantity Screw image

Base cover Palm-rest and keyboard

assembly

M2.5x6 7

Base cover Palm-rest and keyboard

assembly

Captive screw

M2.5x2.5+5L

Battery Palm-rest and keyboard

assembly

M2x3 3

Display panel Display assembly M2x2.5 2

Display panel Display assembly M2.5x2.5 6

Hard-drive assembly Palm-rest and keyboard

assembly

M2x3 3

Hard-drive bracket Hard drive M3x3 4

Heat sink Palm-rest and keyboard

assembly

M2x5 2

Heat sink System board Captive screw 4

Removing and installing components 9

Table 1. Screw list (continued)

Component Secured to Screw type Quantity Screw image

Display hinges Palm-rest and keyboard

assembly

M2.5x6 6

I/O board Palm-rest and keyboard

assembly

M2x4 3

Power button Palm-rest and keyboard

assembly

M2x3 2

M.2 thermal shield Palm-rest and keyboard

assembly

Captive screw 1

M.2 thermal shield Palm-rest and keyboard

assembly

M2x2.2 1

M.2 2230 solid-state

drive

Palm-rest and keyboard

assembly

M2x2 1

System board Palm-rest and keyboard

assembly

M2x4 1

Touchpad Palm-rest and keyboard

assembly

M2x2 2

Touchpad bracket Palm-rest and keyboard

assembly

M2x2 3

Wireless-card bracket System board M2x3 1

Major components of Inspiron 3502

The following image shows the major components of Inspiron 3502.

10 Removing and installing components

1. Base cover

2. Battery

3. Power-adapter port

4. Wireless card

5. M.2 2280 solid-state drive, if installed

6. System board

7. M.2 2230 solid-state drive, if installed

8. Memory module

9. Speakers

10. Palm-rest and keyboard assembly

11. Touchpad

12. Display assembly

13. Power button with optional fingerprint reader

14. I/O board

15. Coin-cell battery

Removing and installing components 11

16. Hard drive

17. Heat sink

NOTE: Dell provides a list of components and their part numbers for the original system configuration purchased. These

parts are available according to warranty coverages purchased by the customer. Contact your Dell sales representative for

purchase options.

Base cover

Removing the base cover

Prerequisites

1. Follow the procedure in Before working inside your computer.

About this task

NOTE: Before removing the base cover, ensure that there is no micro-SD card installed in the micro-SD card slot on your

computer.

The following images indicate the location of the base cover and provides a visual representation of the removal procedure.

12 Removing and installing components

Removing and installing components 13

Steps

1. Remove the seven screws (M2.5x6) that secure the base cover to the palm-rest and keyboard assembly.

2. Loosen the two captive screws (M2.5x2.5+5) that secure the base cover to the palm-rest and keyboard assembly.

3. Using a plastic scribe, pry the base cover from the bottom left and continue to work on the sides to open the base cover.

4. Lift and slide the base cover off the palm-rest and keyboard assembly.

5. Disconnect the battery cable from the system board and turn the computer over.

6. Press and hold the power button for 15 seconds to ground the computer and drain the flea power.

Installing the base cover

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

The following images indicate the location of the base cover and provides a visual representation of the installation procedure.

14 Removing and installing components

Removing and installing components 15

Steps

1. Connect the battery cable to the connector on the system board.

2. Place and snap the base cover into place on the palm-rest and keyboard assembly.

3. Tighten the two captive screws (M2.5x2.5+5) that secure the base cover to the palm-rest and keyboard assembly.

4. Replace the seven screws (M2.5x6) that secure the base cover to the palm-rest and keyboard assembly.

Next steps

1. Follow the procedure in After working inside your computer.

Solid-state drive

Removing the M.2 2230 solid-state drive

Prerequisites

1. Follow the procedure in Before working inside your computer.

2. Remove the base cover.

About this task

NOTE: This procedure applies only to computers shipped with an M.2 2230 solid-state drive installed.

NOTE: The M.2 card installed on your computer will depend on the configuration ordered. Supported card configurations on

the M.2 card slot:

16 Removing and installing components

●M.2 2230 solid-state drive + 2230 mounting bracket

●M.2 2280 solid-state drive

The following images indicate the location of the M.2 2230 solid-state drive and provides a visual representation of the removal

procedure.

Steps

1. Remove the screw (M2x2.2) that secures the M.2 thermal shield to the palm-rest and keyboard assembly.

2. Loosen the captive screw (M2x4) that secures the M.2 thermal shield to the palm-rest and keyboard assembly.

3. Slide and remove the M.2 thermal shield off the palm-rest and keyboard assembly.

4. Remove the screw (M2x2) that secures the M.2 2230 solid-state drive to the screw mount on the M.2 thermal shield.

5. Lift the M.2 2230 solid-state drive off the M.2 thermal shield.

Installing the M.2 2230 solid-state drive

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

NOTE: This procedure applies if you are installing a M.2 2230 solid-state drive.

NOTE: The M.2 card installed on your computer will depend on the configuration ordered. Supported card configurations on

the M.2 card slot:

●M.2 2230 solid-state drive + 2230 mounting bracket

●M.2 2280 solid-state drive

The following images indicate the location of the M.2 2230 solid-state drive and provides a visual representation of the

installation procedure.

Removing and installing components 17

Steps

1. Place the M.2 2230 solid-state drive on the M.2 thermal shield.

2. Align the screw hole on the M.2 2230 solid-state drive to the screw mount on the M.2 thermal shield.

3. Replace the screw (M2x2) that secures the M.2 2230 solid-state drive to the M.2 thermal shield.

4. Align the notch on the M.2 2230 solid-state drive with the tab on the M.2 card slot on the system board.

5. Slide the M.2 2230 solid-state drive and M.2 thermal shield into the M.2 card slot on the palm-rest and keyboard assembly.

6. Align the screw holes on the M.2 thermal shield to the screw holes on the palm-rest and keyboard assembly.

7. Replace the screw (M2x2.2) that secures the M.2 thermal shield to the palm-rest and keyboard assembly.

8. Tighten the captive screw (M2x4) that secures the M.2 thermal shield to the palm-rest and keyboard assembly.

Next steps

1. Install the base cover.

2. Follow the procedure in After working inside your computer.

Removing the M.2 2280 solid-state drive

Prerequisites

1. Follow the procedure in Before working inside your computer.

2. Remove the base cover.

About this task

NOTE: This procedure applies only to computers shipped with a M.2 2280 solid-state drive installed.

NOTE: The M.2 card installed on your computer will depend on the configuration ordered. Supported card configurations on

the M.2 card slot:

●M.2 2230 solid-state drive + 2230 mounting bracket

18 Removing and installing components

●M.2 2280 solid-state drive

The following images indicate the location of the M.2 2280 solid-state drive and provides a visual representation of the removal

procedure.

Steps

1. Remove the screw (M2x2.2) that secures the M.2 thermal shield to the palm-rest and keyboard assembly.

2. Loosen the captive screw (M2x4) that secures the M.2 thermal shield to the palm-rest and keyboard assembly.

3. Lift the M.2 thermal shield from the palm-rest and keyboard assembly.

4. Slide and remove the M.2 2280 solid-state drive from the M.2 card slot on the system board.

Installing the M.2 2280 solid-state drive

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

NOTE: This procedure applies if you are installing a M.2 2280 solid-state drive.

NOTE: The M.2 card installed on your computer will depend on the configuration ordered. Supported card configurations on

the M.2 card slot:

●M.2 2230 solid-state drive + 2230 mounting bracket

●M.2 2280 solid-state drive

The following images indicate the location of the M.2 2280 solid-state drive and provides a visual representation of the

installation procedure.

Removing and installing components 19

Steps

1. Align the notch on the M.2 2280 solid-state drive with the tab on the M.2 card slot on the system board.

2. Slide the M.2 2280 solid-state drive into the M.2 card slot on the system board.

3. Place the M.2 thermal shield on the M.2 2280 solid-state drive.

4. Align the screw holes on the M.2 thermal shield with the screw holes on the palm-rest and keyboard assembly.

5. Replace the screw (M2x2.2) that secures the M.2 thermal shield to the palm-rest and keyboard assembly.

6. Tighten the captive screw (M2x4) that secures the M.2 thermal shield to the palm-rest and keyboard assembly.

Next steps

1. Install the base cover.

2. Follow the procedure in After working inside your computer.

Memory module

Removing the memory module

Prerequisites

1. Follow the procedure in Before working inside your computer.

2. Remove the base cover.

About this task

NOTE: Depending on the configuration ordered your computer may come shipped with one or two memory module

installed.

The following images indicate the location of the memory module and provides a visual representation of the removal procedure.

20 Removing and installing components

Steps

1. Use your fingertips to carefully spread apart the securing-clips on each end of the memory-module slot until the memory

module pops up.

2. Lift at an angle and remove the memory module from its slot on the system board.

3. Repeat the procedure above for the second memory module, if applicable.

Installing the memory module

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

The following images indicate the location of the memory module and provides a visual representation of the installation

procedure.

Removing and installing components 21

Steps

1. Align the slot on the memory module with the notch on the memory module slot on the system board.

2. Slide the memory module into the slot on the system board.

3. Press down on the memory module to snap it into place.

4. Ensure that the securing clips have locked the memory module into place.

NOTE: If the securing clips are not locking the memory module into place remove the memory module from the slot and

repeat steps 1 to 3.

5. Repeat the procedure above for the second memory module, if applicable.

Next steps

1. Install the base cover.

2. Follow the procedure in After working inside your computer.

Wireless card

Removing the wireless card

Prerequisites

1. Follow the procedure in Before working inside your computer.

2. Remove the base cover.

About this task

The following images indicate the location of the wireless card and provides a visual representation of the removal procedure.

22 Removing and installing components

Steps

1. Remove the screw (M2x3) that secures the wireless-card bracket to the system board.

2. Lift the wireless-card bracket off the system board.

3. Disconnect the antenna cables from the wireless card.

4. Slide and remove the wireless card from the M.2 card slot on the system board.

Installing the wireless card

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

The following images indicate the location of the wireless card and provides a visual representation of the installation procedure.

Removing and installing components 23

Steps

1. Connect the antenna cables to the wireless card.

The following table provides the antenna-cable color scheme for the wireless card supported by your computer.

Table 2. Antenna-cable color scheme

Connectors on the wireless card Antenna-cable color

Main (white triangle) White

Auxiliary (black triangle) Black

2. Slide the wireless card into the M.2 card slot on the system board.

3. Place the wireless-card bracket on the wireless card.

4. Replace the screw (M2x3) that secures the wireless-card bracket to the system board.

Next steps

1. Install the base cover.

2. Follow the procedure in After working inside your computer.

24 Removing and installing components

Battery

Lithium-ion battery precautions

CAUTION:

●Exercise caution when handling Lithium-ion batteries.

●Discharge the battery completely before removing it. Disconnect the AC power adapter from the system and

operate the computer solely on battery power—the battery is fully discharged when the computer no longer

turns on when the power button is pressed.

●Do not crush, drop, mutilate, or penetrate the battery with foreign objects.

●Do not expose the battery to high temperatures, or disassemble battery packs and cells.

●Do not apply pressure to the surface of the battery.

●Do not bend the battery.

●Do not use tools of any kind to pry on or against the battery.

●Ensure any screws during the servicing of this product are not lost or misplaced, to prevent accidental

puncture or damage to the battery and other system components.

●If the battery gets stuck inside your computer as a result of swelling, do not try to release it as puncturing,

bending, or crushing a lithium-ion battery can be dangerous. In such an instance, contact Dell technical

support for assistance. See www.dell.com/contactdell.

●Always purchase genuine batteries from www.dell.com or authorized Dell partners and resellers.

●Swollen batteries should not be used and should be replaced and disposed properly. For guidelines on how to

handle and replace swollen Lithium-ion batteries, see Handling swollen Lithium-ion batteries.

Removing the battery

Prerequisites

1. Follow the procedure in Before working inside your computer.

2. Remove the base cover.

About this task

The following images indicate the location of the battery and provides a visual representation of the removal procedure.

Removing and installing components 25

Steps

1. Disconnect the battery cable from the system board, if applicable.

2. Remove the three screws (M2x3) that secure the battery to the palm-rest and keyboard assembly.

3. Slide and lift the battery off the palm-rest and keyboard assembly.

Installing the battery

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

The following images indicate the location of the battery and provides a visual representation of the installation procedure.

26 Removing and installing components

Steps

1. Slide the notch on the battery under the tab on the palm-rest and keyboard assembly and place the battery on the palm-rest

and keyboard assembly.

2. Align the screw holes on the battery to the screw holes on the palm-rest and keyboard assembly.

3. Replace the three screws (M2x3) that secure the battery to the palm-rest and keyboard assembly.

4. Connect the battery cable to the connector on the system board.

Next steps

1. Install the base cover.

2. Follow the procedure in After working inside your computer.

Hard drive

Removing the hard drive

Prerequisites

1. Follow the procedure in Before working inside your computer.

2. Remove the base cover.

3. Remove the battery.

About this task

The following images indicate the location of the hard drive and provides a visual representation of the removal procedure.

Removing and installing components 27

Steps

1. Disconnect the hard-drive cable from the system board.

2. Remove the three screws (M2x3) that secure the hard-drive assembly to the palm-rest and keyboard assembly.

3. Lift the hard-drive assembly along with its cable from the palm-rest and keyboard assembly.

4. Disconnect the hard-drive cable from the hard drive.

5. Remove the four screws (M3x3) that secure the hard-drive bracket to the hard drive.

6. Slide and remove the hard-drive bracket from the hard drive.

Installing the hard drive

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

The following images indicate the location of the hard drive and provides a visual representation of the installation procedure.

28 Removing and installing components

Steps

1. Place and slide the hard drive into the hard-drive bracket.

2. Align the screw holes on the hard-drive bracket with the screw holes on the hard drive.

3. Replace the four screws (M3x3) that secure the hard-drive bracket to the hard drive.

4. Connect the hard-drive cable to the hard drive.

5. Place the hard-drive assembly on the palm-rest and keyboard assembly.

6. Align the screw holes on the hard-drive assembly to the screw holes on the palm-rest and keyboard assembly.

7. Replace the three screws (M2x3) that secure the hard-drive assembly to the palm-rest and keyboard assembly.

8. Connect the hard-drive cable to the connector on the system board.

Next steps

1. Install the battery.

2. Install the base cover.

3. Follow the procedure in After working inside your computer.

Removing and installing components 29

I/O board

Removing the I/O board

Prerequisites

1. Follow the procedure in Before working inside your computer.

2. Remove the base cover.

About this task

The following images indicate the location of the I/O board and provides a visual representation of the removal procedure.

Steps

1. Open the latch and disconnect the fingerprint-reader board cable from the I/O board, if applicable.

2. Open the latch and disconnect the I/O-board power cable from the I/O board.

3. Open the latch and disconnect the fingerprint-reader cable from the I/O board, if applicable.

4. Open the latch and disconnect the I/O-board cable from the I/O board.

5. Remove the three screws (M2x4) that secure the I/O board to the palm-rest and keyboard assembly.

6. Lift the I/O board off the palm-rest and keyboard assembly.

30 Removing and installing components

Installing the I/O board

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

The following images indicate the location of the I/O board and provides a visual representation of the installation procedure.

Steps

1. Place the I/O board on the palm-rest and keyboard assembly.

2. Align the screw holes on the I/O board to the screw holes on the palm-rest and keyboard assembly.

3. Replace the three screws (M2x4) that secure the I/O board to the palm-rest and keyboard assembly.

NOTE: When replacing the screws, only replace the screws in the locations shown in the image.

4. Connect the fingerprint-reader board cable to the connector on the I/O board and close the latch, if applicable.

5. Connect the I/O-board power cable to the connector on the I/O board and close the latch.

6. Connect the fingerprint-reader cable to the connector on the I/O board and close the latch, if applicable.

7. Connect the I/O-board cable to the connector on the I/O board and close the latch.

Next steps

1. Install the base cover.

2. Follow the procedure in After working inside your computer.

Removing and installing components 31

Coin-cell battery

Removing the coin-cell battery

Prerequisites

1. Follow the procedure in Before working inside your computer.

2. Remove the base cover.

3. Remove the I/O board.

About this task

The following images indicate the location of the coin-cell battery and provides a visual representation of the removal procedure.

Steps

1. Flip the I/O board over.

2. Push on the securing clip to release the coin-cell battery from its holder on the I/O board.

3. Lift the coin-cell battery from its holder on the I/O board.

Installing the coin-cell battery

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

The following images indicate the location of the coin-cell battery and provides a visual representation of the installation

procedure.

32 Removing and installing components

Steps

1. Place the coin-cell battery into the coin-cell battery holder on the I/O board with the plus sign facing up.

2. Press down on the coin-cell battery to lock it in place in the coin-cell battery holder.

3. Turn the I/O board over.

Next steps

1. Install the I/O board.

2. Install the base cover.

3. Follow the procedure in After working inside your computer.

Speakers

Removing the speakers

Prerequisites

1. Follow the procedure in Before working inside your computer.

2. Remove the base cover.

3. Remove the M.2 2230 solid-state drive, if applicable.

4. Remove the M.2 2280 solid-state drive, if applicable.

About this task

The following images indicate the location of the speakers and provides a visual representation of the removal procedure.

Removing and installing components 33

Steps

1. Disconnect the speaker cable from the system board.

2. Remove the speaker cable from the routing guides on the palm-rest and keyboard assembly.

3. Lift the speakers along with its cable off the palm-rest and keyboard assembly.

Installing the speakers

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

The following images indicate the location of the speakers and provides a visual representation of the installation procedure.

34 Removing and installing components

Steps

1. Using the alignment posts, place the speakers on the palm-rest and keyboard assembly.

NOTE: Ensure that the alignment posts are threaded through the rubber grommets on the speaker.

2. Route the speaker cable through the routing guides on the palm-rest and keyboard assembly.

3. Connect the speaker cable to the system board.

Next steps

1. Install the M.2 2230 solid-state drive, if applicable.

2. Install the M.2 2280 solid-state drive, if applicable.

3. Install the base cover.

4. Follow the procedure in After working inside your computer.

Heat sink

Removing the heat sink

Prerequisites

1. Follow the procedure in Before working inside your computer.

2. Remove the base cover.

About this task

NOTE: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you

touch it.

NOTE: For maximum cooling of the processor, do not touch the heat transfer areas on the heat sink. The oils in your skin

can reduce the heat transfer capability of the thermal grease.

The following images indicate the location of the heat sink and provides a visual representation of the removal procedure.

Removing and installing components 35

Steps

1. In reverse sequential order (4>3>2>1) loosen the four captive screws that secure the heat sink to the system board.

NOTE: The number of screws varies depending on the configuration ordered.

2. Remove the two screws (M2x5) that secure the heat sink to the palm-rest and keyboard assembly.

3. Lift the heat sink from the system board.

Installing the heat sink

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

NOTE: If either the system board or the heat sink is replaced, use the thermal grease provided in the kit to ensure that

thermal conductivity is achieved.

The following images indicate the location of the heat sink and provides a visual representation of the installation procedure.

Steps

1. Place the heat sink on the system board.

2. Replace the two screws (M2x5) that secure the heat sink to the palm-rest and keyboard assembly.

3. In sequential order (1>2>3>4) tighten the four captive screws that secure the heat sink to the system board.

NOTE: The number of screws varies depending on the configuration ordered.

Next steps

1. Install the base cover.

2. Follow the procedure in After working inside your computer.

36 Removing and installing components

Power button with optional fingerprint reader

Removing the power-button with optional fingerprint reader

Prerequisites

1. Follow the procedure in Before working inside your computer.

2. Remove the base cover.

3. Remove the I/O board.

About this task

The following images indicate the location of the power-button with optional fingerprint reader and provides a visual

representation of the removal procedure.

Steps

1. Remove the two screws (M2x3) that secure the power-button with optional fingerprint reader to the palm-rest and

keyboard assembly.

2. Open the latch and disconnect the power-button cable from the fingerprint-reader board, if applicable.

NOTE: This step is only applicable if your computer was shipped with the optional fingerprint reader.

3. Peel the Mylar that secures and grounds the power-button cable to the palm-rest and keyboard assembly, if applicable.

NOTE: This step is only applicable if your computer was shipped with the optional fingerprint reader.

4. Lift the power-button, along with its cable, off the palm-rest and keyboard assembly.

Removing and installing components 37

Installing the power-button with optional fingerprint reader

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

The following images indicate the location of the power-button with optional fingerprint reader and provides a visual

representation of the installation procedure.

Steps

1. Using the alignment posts, place the power-button into its slot on the palm-rest and keyboard assembly.

2. Replace the two screws (M2x3) that secure the power-button to the palm-rest and keyboard assembly.

3. Connect the power-button cable to the fingerprint-reader board and close the latch, if applicable.

NOTE: This step is only applicable if your computer was shipped with the optional fingerprint reader.

4. Adhere the Mylar that secures and grounds the power-button cable to the palm-rest and keyboard assembly, if applicable.

NOTE: This step is only applicable if your computer was shipped with the optional fingerprint reader.

Next steps

1. Install the I/O board.

2. Install the base cover.

3. Follow the procedure in After working inside your computer.

38 Removing and installing components

Fingerprint-reader board

Removing the fingerprint-reader board

Prerequisites

1. Follow the procedure in Before working inside your computer.

2. Remove the base cover.

About this task

NOTE: The fingeprint-reader board is an optional component and will only be installed in systems shipped with a fingerprint

reader.

The following images indicate the location of the fingerprint-reader board and provides a visual representation of the removal

procedure.

Steps

1. Open the latch and disconnect the power-button cable from the fingerprint-reader board.

2. Open the latch and disconnect the fingerprint-reader board cable from the fingerprint-reader board.

3. Slide and remove the fingerprint-reader board from the securing clip on the palm-rest and keyboard assembly.

Installing the fingerprint-reader board

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

The following images indicate the location of the fingerprint-reader board and provides a visual representation of the installation

procedure.

Removing and installing components 39

Steps

1. Place and slide the fingerprint-reader board under the securing clip on the palm-rest and keyboard assembly.

2. Connect the fingerprint-reader board cable to the fingerprint-reader board and close the latch.

3. Connect the power-button cable to the fingerprint-reader board and close the latch.

Next steps

1. Install the base cover.

2. Follow the procedure in After working inside your computer.

Display assembly

Removing the display assembly

Prerequisites

1. Follow the procedure in Before working inside your computer.

2. Remove the base cover.

3. Remove the wireless card.

About this task

The following images indicate the location of the display assembly and provides a visual representation of the removal

procedure.

40 Removing and installing components

Removing and installing components 41

Steps

1. Disconnect the display cable from the system board.

2. Remove the display cable from the routing guides on the palm-rest and keyboard assembly.

3. Open the display and place the computer with the lid open at the edge of a stable elevation with the display hanging

downwards.

4. Remove the six screws (M2.5x6) that secure the display hinges to the palm-rest and keyboard assembly.

5. Lift the display assembly from the palm-rest and keyboard assembly.

Installing the display assembly

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

The following images indicate the location of the display assembly and provides a visual representation of the installation

procedure.

42 Removing and installing components

Steps

1. Place the display assembly on the palm-rest and keyboard assembly.

2. Align the screw holes on the display hinges with the screw holes on the palm-rest and keyboard assembly.

3. Replace the 6 screws (M2.5x6) that secure the display hinges to the palm-rest and keyboard assembly.

4. Route the display cable through the routing guides on the palm-rest and keyboard assembly.

5. Connect the display cable to the connector on the system board.

Next steps

1. Install the wireless card.

2. Install the base cover.

3. Follow the procedure in After working inside your computer.

Display bezel

Removing the display bezel

Prerequisites

1. Follow the procedure in Before working inside your computer.

2. Remove the base cover.

3. Remove the wireless card.

4. Remove the display assembly.

About this task

The following images indicate the location of the display bezel and provides a visual representation of the removal procedure.

Removing and installing components 43

Steps

1. Using a plastic scribe, pry the display bezel from the outer edge to separate it from the display assembly.

2. Lift the display bezel from the display assembly.

Installing the display bezel

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

The following images indicate the location of the display bezel and provides a visual representation of the installation procedure.

44 Removing and installing components

Steps

1. Place the display panel and display assembly on a clean and flat surface.

2. Place the display bezel on the display assembly.

3. Align the tabs on the display bezel to the slots on the display assembly.

4. Press down on the display bezel and snap the display bezel in place.

Next steps

1. Install the display assembly.

2. Install the wireless card.

3. Install the base cover.

4. Follow the procedure in After working inside your computer.

Display panel

Removing the display panel

Prerequisites

1. Follow the procedure in Before working inside your computer.

2. Remove the base cover.

3. Remove the wireless card.

4. Remove the display assembly.

Removing and installing components 45

5. Remove the display bezel.

About this task

The following images indicate the location of the display panel and provides a visual representation of the removal procedure.

46 Removing and installing components

Steps

1. Remove the six screws (M2.5x2.5) that secure the display panel to the display assembly.

2. Remove the two screws (M2x2.5) that secure the display panel to the display assembly.

3. Lift and rotate the display panel forward.

NOTE: Ensure that the display panel has a smooth and clean surface to rest on to prevent damage.

4. Disconnect the display cable from the display panel.

5. Peel the tape that secures the display-cable connector latch to the display panel.

6. Lift the display-cable latch and disconect the display cable from the display panel.

7. Lift the display panel off the display assembly.

NOTE: The display brackets are shipped together with the display panel, do not remove the display brackets from the

display panel.

Installing the display panel

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

The following images indicate the location of the display panel and provides a visual representation of the installation procedure.

Removing and installing components 47

48 Removing and installing components

Steps

1. Place the display panel and display assembly on a clean and flat surface.

2. Connect the display cable to the connector on the diplay panel and close the latch.

3. Adhere the tape that secures the display-cable connector latch to the display panel.

4. Lift and rotate the display panel, then place the display panel on the display assembly.

5. Align the screw holes on the display panel to the screw holes on the display assembly.

6. Replace the six screws (M2.5x2.5) that secure the display panel to the display assembly.

7. Replace the two screws (M2x2.5) that secure the display panel to the display assembly.

Next steps

1. Install the display assembly.

2. Install the wireless card.

3. Install the base cover.

4. Follow the procedure in After working inside your computer.

Camera

Removing the camera

Prerequisites

1. Follow the procedure in Before working inside your computer.

2. Remove the base cover.

3. Remove the wireless card.

4. Remove the display assembly.

5. Remove the display bezel.

6. Remove the display panel.

Removing and installing components 49

About this task

The following images indicate the location of the camera and provides a visual representation of the removal procedure.

Steps

1. Using the pull tab, disconnect the camera cable from the camera.

2. Using a plastic scribe, pry the camera from the display assembly.

3. Lift the camera off the display assembly.

Installing the camera

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

The following images indicate the location of the camera and provides a visual representation of the installation procedure.

50 Removing and installing components

Steps

1. Adhere the camera in its slot on the display assembly.

2. Connect the camera cable to the camera.

Next steps

1. Install the display panel.

2. Install the display bezel.

3. Install the display assembly.

4. Install the wireless card.

5. Install the base cover.

6. Follow the procedure in After working inside your computer.

Touchpad

Removing the touchpad

Prerequisites

1. Follow the procedure in Before working inside your computer.

2. Remove the base cover.

3. Remove the battery.

About this task

The following images indicate the location of the touchpad and provides a visual representation of the removal procedure.

Removing and installing components 51

Steps

1. Open the latch and disconnect the the touchpad cable from the touchpad.

2. Remove the three screws (M2x2) that secure the touchpad bracket to the palm-rest and keyboard assembly.

3. Lift the touchpad bracket off the touchpad.

4. Remove the two screws (M2x2) that secure the touchpad to the palm-rest and keyboard assembly.

5. Peel the tape that secures the touchpad to the palm-rest and keyboard assembly.

6. Lift the touchpad off the palm-rest and keyboard assembly.

Installing the touchpad

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

The following images indicate the location of the touchpad and provides a visual representation of the installation procedure.

52 Removing and installing components

Steps

1. Place the touchpad into its slot on the palm-rest and keyboard assembly.

2. Align the screw holes on the touchpad to the screw holes on the palm-rest and keyboard assembly.

3. Turn the computer over and open the display to ensure that the touchpad is equally aligned on all sides.

4. Close the display and place the computer in the position shown.

5. Replace the two screws (M2x3) that secure the touchpad to the palm-rest and keyboard assembly.

6. Adhere the tape that secures the touchpad to the palm-rest and keyboard assembly.

7. Place the touchpad bracket on the touchpad.

8. Align the screw holes on the touchpad bracket to the screw holes on the palm-rest and keyboard assembly.

9. Replace the three screws (M2x3) that secure the touchpad bracket to the palm-rest and keyboard assembly.

10. Connect the touchpad cable to the touchpad and close the latch.

Next steps

1. Install the battery.

2. Install the base cover.

3. Follow the procedure in After working inside your computer.

System board

Removing the system board

Prerequisites

1. Follow the procedure in Before working inside your computer.

2. Remove the base cover.

3. Remove the M.2 2230 solid-state drive, if applicable.

4. Remove the M.2 2280 solid-state drive, if applicable.

5. Remove the memory module.

6. Remove the heat sink.

7. Remove the wireless card.

8. Remove the display assembly.

Removing and installing components 53

About this task

The following images indicate the connectors on the system board.

1. Power-adapter port cable

2. Speaker cable

3. Keyboard cable

4. Keyboard-backlight cable

5. Touchpad cable

6. Battery cable

7. Hard-drive cable

8. I/O-board cable

9. Fingerprint-reader cable

10. Power-button cable

The following images indicate the location of the system board and provide a visual representation of the removal procedure.

54 Removing and installing components

Steps

1. Disconnect the power-adapter port cable from the system board.

2. Open the latch and disconnect the fingerprint-reader cable from the system board, if applicable.

3. Open the latch and disconnect the I/O-board cable from the system board.

4. Open the latch and disconnect the hard-drive cable from the system board, if applicable.

5. Open the latch and disconnect the touchpad cable from the system board.

6. Open the latch and disconnect the keyboard-backlight cable from the system board, if applicable.

7. Open the latch and disconnect the keyboard cable from the system board.

8. Disconnect the speaker cable from the system board.

9. Remove the screw (M2x4) that secures the system board to the palm-rest and keyboard assembly.

10. Lift the system board off the palm-rest and keyboard assembly.

Removing and installing components 55

Installing the system board

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

The following images indicate the connectors on the system board.

1. Power-adapter port cable

2. Speaker cable

3. Keyboard cable

4. Keyboard-backlight cable

5. Touchpad cable

6. Battery cable

7. Hard-drive cable

8. I/O-board cable

9. Fingerprint-reader cable

10. Power-button cable

The following images indicate the location of the system board and provides a visual representation of the installation procedure.

56 Removing and installing components

Steps

1. Place the system board on the palm-rest and keyboard assembly.

2. Align the screw hole on the system board to the screw hole on the palm-rest and keyboard assembly.

3. Replace the screw (M2x4) that secures the system board to the palm-rest and keyboard assembly.

4. Connect the speaker cable to the system board.

5. Connect the keyboard cable to the connector on the system board and close the latch.

6. Connect the keyboard-backlight cable to the connector on the system board and close the latch, if applicable.

7. Connect the touchpad cable to the connector on the system board and close the latch.

8. Connect the hard-drive cable to the connector on the system board and close the latch, if applicable.

9. Connect the I/O-board cable to the connector on the system board and close the latch.

10. Connect the fingerprint-reader cable to the connector on the system board and close the latch, if applicable.

Removing and installing components 57

11. Connect the power-adapter port cable to the system board.

Next steps

1. Install the display assembly.

2. Install the wireless card.

3. Install the heat sink.

4. Install the memory module.

5. Install the M.2 2230 solid-state drive, if applicable.

6. Install the M.2 2280 solid-state drive, if applicable.

7. Install the base cover.

8. Follow the procedure in After working inside your computer.

Power-adapter port

Removing the power-adapter port

Prerequisites

1. Follow the procedure in Before working inside your computer.

2. Remove the base cover.

3. Remove the M.2 2230 solid-state drive, if applicable.

4. Remove the M.2 2280 solid-state drive, if applicable.

5. Remove the wireless card.

6. Remove the display assembly.

7. Remove the system board.

NOTE: The system board can be removed along with the heat sink.

About this task

The following images indicate the location of the power-adapter port and provides a visual representation of the removal

procedure.

58 Removing and installing components

Steps

Lift the power-adapter port from its slot on the palm-rest and keyboard assembly.

Installing the power-adapter port

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

The following images indicate the location of the power-adapter port and provides a visual representation of the installation

procedure.

Removing and installing components 59

Steps

Place the power-adapter port into its slot on the palm-rest and keyboard assembly.

Next steps

1. Install the system board.

2. Install the display assembly.

3. Install the wireless card.

4. Install the M.2 2230 solid-state drive, if applicable.

5. Install the M.2 2280 solid-state drive, if applicable.

6. Install the base cover.

7. Follow the procedure in After working inside your computer.

Palm-rest and keyboard assembly

Removing the palm-rest and keyboard assembly

Prerequisites

1. Follow the procedure in Before working inside your computer.

2. Remove the base cover.

3. Remove the M.2 2230 solid-state drive, if applicable.

4. Remove the M.2 2280 solid-state drive, if applicable.

5. Remove the hard drive.

6. Remove the wireless card.

7. Remove the display assembly.

8. Remove the fingerprint-reader board.

9. Remove the touchpad.

10. Remove the speakers.

11. Remove the I/O board.

60 Removing and installing components

12. Remove the power-button with optional fingerprint reader.

13. Remove the system board.

NOTE: The system board can be removed along with the heat sink.

14. Remove the power-adapter port.

About this task

The following images indicate the location of the palm-rest and keyboard assembly and provides a visual representation of the

removal procedure.

Steps

After performing the pre-requisites you are left with the palm-rest and keyboard assembly.

Installing the palm-rest and keyboard assembly

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

The following images indicate the location of the palm-rest and keyboard assembly and provides a visual representation of the

installation procedure.

Removing and installing components 61

Steps

Place the palm-rest and keyboard assembly on a flat and clean surface and perform the post-requisites to install the palm-rest

and keyboard assembly.

Next steps

1. Install the power-adapter port.

2. Install the system board.

3. Install the power-button with optional fingerprint reader.

4. Install the I/O board.

5. Install the speakers.

6. Install the touchpad.

7. Install the fingerprint-reader board.

8. Install the display assembly.

9. Install the wireless card.

10. Install the hard drive.

11. Install the M.2 2230 solid-state drive, if applicable.

12. Install the M.2 2280 solid-state drive, if applicable.

13. Install the base cover.

14. Follow the procedure in After working inside your computer.

62 Removing and installing components

Drivers and downloads

When troubleshooting, downloading or installing drivers it is recommended that you read the Dell Knowledge Based article,

Drivers and Downloads FAQ 000123347.

Drivers and downloads 63

System setup

CAUTION: Unless you are an expert computer user, do not change the settings in the BIOS Setup program.

Certain changes can make your computer work incorrectly.

NOTE: Depending on the computer and its installed devices, the items listed in this section may or may not be displayed.

NOTE: Before you change BIOS Setup program, it is recommended that you write down the BIOS Setup program screen

information for future reference.

Use the BIOS Setup program for the following purposes:

●Get information about the hardware installed in your computer, such as the amount of RAM and the size of the hard drive.

●Change the system configuration information.

●Set or change a user-selectable option, such as the user password, type of hard drive installed, and enabling or disabling

base devices.

Entering BIOS setup program

Steps

1. Turn on your computer.

2. Press F2 immediately to enter the BIOS setup program.

NOTE: If you wait too long and the operating system logo appears, continue to wait until you see the desktop. Then,

turn off your computer and try again.

Navigation keys

NOTE: For most of the System Setup options, changes that you make are recorded but do not take effect until you restart

the system.

Table 3. Navigation keys

Keys Navigation

Up arrow Moves to the previous field.

Down arrow Moves to the next field.

Enter Selects a value in the selected field (if applicable) or follow

the link in the field.

Spacebar Expands or collapses a drop-down list, if applicable.

Tab Moves to the next focus area.

NOTE: For the standard graphics browser only.

Esc Moves to the previous page until you view the main screen.

Pressing Esc in the main screen displays a message that

prompts you to save any unsaved changes and restarts the

system.

64 System setup

One time boot menu

To enter one time boot menu, turn on your computer, and then press F2 immediately.

NOTE: It is recommended to shutdown the computer if it is on.

The one-time boot menu displays the devices that you can boot from including the diagnostic option. The boot menu options

are:

●Removable Drive (if available)

●STXXXX Drive (if available)

NOTE: XXX denotes the SATA drive number.

●Optical Drive (if available)

●SATA Hard Drive (if available)

●Diagnostics

NOTE: Choosing Diagnostics, will display the ePSA diagnostics screen.

The boot sequence screen also displays the option to access the System Setup screen.

System setup options

Main

Table 4. Main

Option Description

System Time Displays the current time in hh:mm:ss format.

System Date Displays the current date in mm/dd/yyyy format.

BIOS Version Displays the BIOS version.

Product Name Displays the model number of your computer.

Service Tag Displays the service tag of your computer.

Asset Tag Displays the asset tag of your computer.

CPU Type Displays the processor type.

CPU Speed Displays the processor speed.

CPU ID Displays the processor identification code.

CPU L1 Cache Displays the processor L1 cache size.

CPU L2 Cache Displays the processor L2 cache size.

First HDD Displays the type of HDD installed.

M.2 PCIe SSD Displays the type of SSD installed.

AC Adapter Type Displays the AC adapter type.

System Memory Displays the system memory information.

Memory Speed Displays the memory speed information.

Keyboard type Displays the keyboard information.

System setup 65

Advanced

Table 5. Advanced

Option Description

Intel SpeedStep Enables or disables the Intel SpeedStep mode of processor.

●Enable Intel SpeedStep

Default: Enabled

Virtualization Enables or disables the Intel Virtualization Technology feature

for the processor.

Default: Enabled

USB Emulation Enables or disables the USB emulation feature. This feature

defines how the BIOS, in the absence of a USB-aware

operating system, handles USB devices. USB emulation is

always enabled during POST.

Default: Enabled

NOTE: You cannot boot any type of USB device (floppy,

hard drive, or memory key) when this option is off.

USB Wake Support Enables or disables the USB devices to wake the computer

from Standby mode.

Default: Disabled

SATA Operation Enables you to configure the operating mode of the integrated

SATA drive controller.

Choose one of the following options:

●Disabled: The SATA controllers are hidden

●AHCI: SATA is configured for AHCI mode

●RAID On: SATA is configured to support RAID mode

Default: AHCI

Adapter Warnings Enables or disables the system setup (BIOS) warning

messages when you use certain power adapters.

●Enable Adapter Warnings

Default: Enabled

Function Key Behavior Enables you to set function key or multimedia key as the

default function key behavior.

Default: Multimedia key

Battery Health Displays the battery health.

Intel Software Guard Extensions Enables or disables Intel Software Guard Extensions.

Default: Software Controlled

Intel Software Guard Extensions allocated memory size Displays the allocated memory size for Intel Software Guard

Extensions.

Camera Enables or disables the camera.

Default: Enabled

Maintenance

66 System setup

Table 5. Advanced (continued)

Option Description

Data Wipe on next boot If enabled, the BIOS will queue up a data wipe cycle for

storage devices that are connected to the motherboard on

the next reboot.

Default: Disabled.

BIOS Recovery from Hard Drive Enables the computer to recover from a bad BIOS image, as

long as the Boot Block portion is intact and functioning.

Default: Enabled

BIOS Auto-Recovery Enables the computer to automatically recover the BIOS

without user actions. This feature requires BIOS Recovery

from Hard Drive to be set to Enabled.

Default: Disabled.

SupportAssist System Resolution

Auto OS Recovery Threshold Controls the automatic boot flow for SupportAssist System

Resolution Console and for Dell OS Recovery tool.

Default: 2

SupportAssist OS Recovery Enables or disables SupportAssist OS recovery.

Default: Enabled

Battery Charge Configuraion Enables the computer to run on battery during power usage

hours. Use the below options to prevent AC power usage

between certain times of each day.

Default: Adaptive. Battery settings are adaptively optimized

based on your typical battery usage pattern.

Advanced Battery Charge Mode Enables or disables Advanced Battery Charge Configuration

from the beginning of the day to a specified work period.

Advanced Battery Charged maximizes battery health while still

supporting heavy use during the work day.

Default: Disabled

Security

Table 6. Security

Option Description

Unlock Setup Status Displays if the setup status is unlocked.

Admin Password Status Displays if the administrator password is clear or set.

Default: Not set

System Password Status Displays if the system password is clear or set.

Default: Not set

Asset Tag Creates a system Asset Tag that can be used by an IT administrator to uniquely identify a

particular system. Once set in BIOS, the Asset Tag cannot be changed.

Admin Password Enables you to set, change, or delete the administrator(admin) password.

The entries to set password are:

●Enter the old password:

●Create new password:

System setup 67

Table 6. Security (continued)

Option Description

●Confirm new password:

Click OK once you set the password.

NOTE: For the first time login, "Enter the old password:" field is not shown. Hence, password

has to be set for the first time you login and then you can change or delete the password.

System Password Enables you to set, change, or delete the System password.

The entries to set password are:

●Enter the old password:

●Create new password:

●Confirm new password:

Click OK once you set the password.

NOTE: For the first time login, "Enter the old password:" field is not shown. Hence, password

has to be set for the first time you login and then you can change or delete the password.

Password Change Enables you to change the System password when the administrator password is set.

Default: Permitted

Absolute Enable or disable the BIOS module interface of the optional Computrace Service from Absolute

Software.

Default: Enabled

Absolute status Displays the status of the Computrace Service from the Absolute Software.

Default: Deactivate

Firmware TPM Enables or disables the Trusted Platform Module (TPM) during POST.

Default: Enabled

PPI Bypass for Clear

Command

Enables you to control the TPM Physical Presence Interface (PPI). When enabled, this setting will

allow the OS to skip BIOS PPI user prompts when issuing the Clear command. Changes to this

setting take effect immediately.

Default: Disabled

UEFI Firmware Capsule

Updates

Enables you to update the system BIOS via UEFI capsule update packages.

Default: Enabled

WINDOWS SMM

SECURITY MITIGATIONS

Enables or disables additional WINDOWS SMM Security Mitigation protections.

Default: Disabled

Secure Boot

Secure Boot Enables or disables the computer to boos using only validated boot software.

Default: OFF.

Secure Boot Mode Selects the Secure Boot operation mode.

Default: Deployed Mode.

Expert Key Management Enables or disables the keys in the PK, KEK, db, and dbx security key databases to be modified.

Default: Disabled

68 System setup

Boot

Table 7. Boot

Option Description

Boot List Option Displays the available boot options.

●Legacy

●UEFI

Default: UEFI

File Browser Add Boot Option Enables you to add the boot options.

File Browser Del Boot Option Enables you to delete the boot options.

Boot Option Priorities Displays the boot sequence.

Boot Option #1 Displays the available first boot option.

Boot Option #2 Displays the available second boot option.

Boot Option #3 Displays the available third boot option.

Exit

Table 8. Exit

Option Description

Save Changes and Reset Enables you to exit system setup and save your changes.

Discard Changes and Reset Enables you to exit system setup and load previous values for

all system setup options.

Restore Defaults Enables you to restore default values for all system setup

options.

Discard Changes Enables you to load previous values for all system setup

options.

Save Changes Enables you to save the changes for all system setup options.

System and setup password

Table 9. System and setup password

Password type Description

System password Password that you must enter to log on to your system.

Setup password Password that you must enter to access and make changes to

the BIOS settings of your computer.

You can create a system password and a setup password to secure your computer.

CAUTION: The password features provide a basic level of security for the data on your computer.

CAUTION: Anyone can access the data stored on your computer if it is not locked and left unattended.

NOTE: System and setup password feature is disabled.

System setup 69

Assigning a system setup password

Prerequisites

You can assign a new System or Admin Password only when the status is in Not Set.

About this task

To enter the system setup, press F2 immediately after a power-on or reboot.

Steps

1. In the System BIOS or System Setup screen, select Security and press Enter.

The Security screen is displayed.

2. Select System/Admin Password and create a password in the Create new password field.

Use the following guidelines to assign the system password:

●A password can have up to 32 characters.

●The password can contain the numbers 0 through 9.

●Only lower case letters are valid, upper case letters are not allowed.

●Only the following special characters are allowed: space, (”), (+), (,), (-), (.), (/), (;), ([), (\), (]), (`).

3. Type the system password that you entered earlier in the Confirm new password field and click OK.

4. Press Esc and a message prompts you to save the changes.

5. Press Y to save the changes.

The computer restarts.

Deleting or changing an existing system setup password

Prerequisites

Ensure that the Password Status is Unlocked (in the System Setup) before attempting to delete or change the existing

System and Admin password. You cannot delete or change an existing System or Admin password, if the Password Status is

Locked.

About this task

To enter the System Setup, press F2 immediately after a power-on or reboot.

Steps

1. In the System BIOS or System Setup screen, select Security and press Enter.

The Security screen is displayed.

2. In the System Security screen, verify that Password Status is Unlocked.

3. Select System Password, alter, or delete the existing system password and press Enter or Tab.

4. Select Admin Password, alter, or delete the existing setup password and press Enter or Tab.

NOTE: If you change the System and/or Admin password, reenter the new password when prompted. If you delete the

System and Admin password, confirm the deletion when prompted.

5. Press Esc and a message prompts you to save the changes.

6. Press Y to save the changes and exit from System Setup.

The computer restarts.

Clearing CMOS settings

About this task

CAUTION: Clearing CMOS settings will reset the BIOS settings on your computer.

70 System setup

Steps

1. Remove the base cover.

2. Disconnect the battery cable from the system board.

3. Remove the coin-cell battery.

4. Wait for one minute.

5. Replace the coin-cell battery.

6. Connect the battery cable to the system board.

7. Replace the base cover.

Clearing BIOS (System Setup) and System passwords

About this task

To clear the system or BIOS passwords, contact Dell technical support as described at www.dell.com/contactdell.

NOTE: For information on how to reset Windows or application passwords, refer to the documentation accompanying

Windows or your application.

Updating the BIOS

Updating the BIOS in Windows

Steps

1. Go to www.dell.com/support.

2. Click Product support. In the Search support box, enter the Service Tag of your computer, and then click Search.

NOTE: If you do not have the Service Tag, use the SupportAssist feature to automatically identify your computer. You

can also use the product ID or manually browse for your computer model.

3. Click Drivers & Downloads. Expand Find drivers.

4. Select the operating system installed on your computer.

5. In the Category drop-down list, select BIOS.

6. Select the latest version of BIOS, and click Download to download the BIOS file for your computer.

7. After the download is complete, browse the folder where you saved the BIOS update file.

8. Double-click the BIOS update file icon and follow the on-screen instructions.

For more information, see knowledge base article 000124211 at www.dell.com/support.

Updating the BIOS using the USB drive in Windows

Steps

1. Follow the procedure from step 1 to step 6 in Updating the BIOS in Windows to download the latest BIOS setup program file.

2. Create a bootable USB drive. For more information, see the knowledge base article 000145519 at www.dell.com/support.

3. Copy the BIOS setup program file to the bootable USB drive.

4. Connect the bootable USB drive to the computer that needs the BIOS update.

5. Restart the computer and press F12 .

6. Select the USB drive from the One Time Boot Menu.

7. Type the BIOS setup program filename and press Enter.

The BIOS Update Utility appears.

8. Follow the on-screen instructions to complete the BIOS update.

System setup 71

Updating the BIOS from the F12 One-Time boot menu

Update your computer BIOS using the BIOS update.exe file that is copied to a FAT32 USB drive and booting from the F12

One-Time boot menu.

About this task

BIOS Update

You can run the BIOS update file from Windows using a bootable USB drive or you can also update the BIOS from the F12

One-Time boot menu on the computer.

Most of the Dell computers built after 2012 have this capability, and you can confirm by booting your computer to the F12

One-Time Boot Menu to see if BIOS FLASH UPDATE is listed as a boot option for your computer. If the option is listed, then the

BIOS supports this BIOS update option.

NOTE: Only computers with BIOS Flash Update option in the F12 One-Time boot menu can use this function.

Updating from the One-Time boot menu

To update your BIOS from the F12 One-Time boot menu, you need the following:

●USB drive formatted to the FAT32 file system (key does not have to be bootable)

●BIOS executable file that you downloaded from the Dell Support website and copied to the root of the USB drive

●AC power adapter that is connected to the computer

●Functional computer battery to flash the BIOS

Perform the following steps to perform the BIOS update flash process from the F12 menu:

CAUTION: Do not turn off the computer during the BIOS update process. The computer may not boot if you turn

off your computer.

Steps

1. From a turn off state, insert the USB drive where you copied the flash into a USB port of the computer.

2. Turn on the computer and press F12 to access the One-Time Boot Menu, select BIOS Update using the mouse or arrow keys

then press Enter.

The flash BIOS menu is displayed.

3. Click Flash from file.

4. Select external USB device.

5. Select the file and double-click the flash target file, and then click Submit.

6. Click Update BIOS. The computer restarts to flash the BIOS.

7. The computer will restart after the BIOS update is completed.

72 System setup

Troubleshooting

Handling swollen Lithium-ion batteries

Like most laptops, Dell laptops use lithium-ion batteries. One type of lithium-ion battery is the lithium-ion polymer battery.

Lithium-ion polymer batteries have increased in popularity in recent years and have become standard in the electronics industry

due to customer preferences for a slim form factor (especially with newer ultra-thin laptops) and long battery life. Inherent to

lithium-ion polymer battery technology is the potential for swelling of the battery cells.

Swollen battery may impact the performance of the laptop. To prevent possible further damage to the device enclosure or

internal components leading to malfunction, discontinue the use of the laptop and discharge it by disconnecting the AC adapter

and letting the battery drain.

Swollen batteries should not be used and should be replaced and disposed of properly. We recommend contacting Dell product

support for options to replace a swollen battery under the terms of the applicable warranty or service contract, including options

for replacement by a Dell authorized service technician.

The guidelines for handling and replacing Lithium-ion batteries are as follows:

●Exercise caution when handling Lithium-ion batteries.

●Discharge the battery before removing it from the system. To discharge the battery, unplug the AC adapter from the system

and operate the system only on battery power. When the system will no longer power on when the power button is pressed,

the battery is fully discharged.

●Do not crush, drop, mutilate, or penetrate the battery with foreign objects.

●Do not expose the battery to high temperatures, or disassemble battery packs and cells.

●Do not apply pressure to the surface of the battery.

●Do not bend the battery.

●Do not use tools of any type to pry on or against the battery.

●If a battery gets stuck in a device as a result of swelling, do not try to free it as puncturing, bending, or crushing a battery

can be dangerous.

●Do not attempt to reassemble a damaged or swollen battery into a laptop.

●Swollen batteries that are covered under warranty should be returned to Dell in an approved shipping container (provided

by Dell)—this is to comply with transportation regulations. Swollen batteries that are not covered under warranty should be

disposed of at an approved recycling center. Contact Dell product support at https://www.dell.com/support for assistance

and further instructions.

●Using a non-Dell or incompatible battery may increase the risk of fire or explosion. Replace the battery only with a

compatible battery purchased from Dell that is designed to work with your Dell computer. Do not use a battery from other

computers with your computer. Always purchase genuine batteries from https://www.dell.com or otherwise directly from

Dell.

Lithium-ion batteries can swell for various reasons such as age, number of charge cycles, or exposure to high heat. For more

information on how to improve the performance and lifespan of the laptop battery and to minimize the possibility of occurrence

of the issue, see Dell Laptop Battery - Frequently Asked Questions.

Locate the Service Tag or Express Service Code of

your Dell computer

Your Dell computer is uniquely identified by a Service Tag or Express Service Code. To view relevant support resources for your

Dell computer, we recommend entering the Service Tag or Express Service Code at www.dell.com/support.

For more information on how to find the Service Tag for your computer, see Locate the Service Tag for your Dell Laptop.

Troubleshooting 73

System diagnostic lights

The power and battery status light indicates the power and battery status of the computer. These are the power states:

Solid white: Power adapter is connected, and the battery has more than 5% charge.

Amber: Computer is running on battery, and the battery has less than 5% charge.

Off:

●Power adapter is connected, and the battery is fully charged.

●Computer is running on battery, and the battery has more than 5% charge.

●Computer is in sleep state, hibernation, or turned off.

The power and battery-status light may also blink amber or white according to predefined "beep codes" indicating various

failures.

For example, the power and battery-status light blinks amber two times followed by a pause, and then blinks white three times

followed by a pause. This 2,3 pattern continues until the computer is turned off, indicating no memory or RAM is detected.

The following table shows different power and battery-status light patterns and associated problems.

NOTE: The following diagnostic light codes and recommended solutions are intended for Dell service technicians to

troubleshoot problems. You should only perform troubleshooting and repairs as authorized or directed by the Dell technical

support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty.

Table 10. Diagnostic-light codes

Diagnostic light codes

(Amber, white)

Problem description

2,1 Processor failure

2,2 System board: BIOS or ROM (Read-Only

Memory) failure

2,3 No memory or RAM (Random-Access Memory)

detected

2,4 Memory or RAM (Random-Access Memory)

failure

2,5 Invalid memory installed

2,6 System-board or chipset error

2,7 Display failure - SBIOS message

3,1 CMOS battery failure

3,2 PCI, video card/chip failure

3,3 BIOS recovery image not found

3,4 Recovery image found but invalid

3,5 Power-rail failure

3,6 System BIOS Flash incomplete

3,7 Management Engine (ME) error

Camera status light: Indicates whether the camera is in use.

●Solid white—Camera is in use.

●Off—Camera is not in use.

Caps Lock status light: Indicates whether Caps Lock is enabled or disabled.

●Solid white—Caps Lock enabled.

●Off—Caps Lock disabled.

74 Troubleshooting

SupportAssist | On-board Diagnostics

About this task

The SupportAssist | On-board Diagnostics performs a complete check of your hardware.

This diagnostic is the new on-board diagnostic tool and replaces the ePSA 3.0 diagnostics. It has a clean and modern user

interface, quicker tests, simplified messaging.

SupportAssist | On-board Diagnostics can be initiated by one of the following methods:

●Pressing F12 to enter one-time Boot Menu and selecting Diagnostics to initiate the diagnostics OR Fn + Power

●BIOS POST detecting a hardware failure or error and initiating the diagnostics

The SupportAssist | On-board Diagnostics is embedded with the BIOS and is launched by the BIOS internally. The embedded

system diagnostics provides a set of options for particular devices or device groups allowing you to:

●Run tests in either Quick Test Mode or Advanced Test Mode

●Run thorough tests to introduce additional test options to provide extra information about the failed device(s)

●Run tests in either Automatic Mode or Interactive Test Mode

●Run interactive tests on LCD panel and keyboard

●Display or save test results

●View status messages that indicate if the tests are completed successfully

●View error messages that indicate if problems were encountered during the test

NOTE: Some tests for specific devices require user interaction. Ensure that you are present at the computer terminal when

the diagnostic tests are performed.

For more information, see SupportAssist Pre-Boot System Performance Check.

Recovering the operating system

When your computer is unable to boot to the operating system even after repeated attempts, it automatically starts Dell

SupportAssist OS Recovery.

Dell SupportAssist OS Recovery is a standalone tool that is preinstalled in all Dell computers installed with Windows operating

system. It consists of tools to diagnose and troubleshoot issues that may occur before your computer boots to the operating

system. It enables you to diagnose hardware issues, repair your computer, back up your files, or restore your computer to its

factory state.

You can also download it from the Dell Support website to troubleshoot and fix your computer when it fails to boot into their

primary operating system due to software or hardware failures.

For more information about the Dell SupportAssist OS Recovery, see Dell SupportAssist OS Recovery User's Guide at

www.dell.com/serviceabilitytools. Click SupportAssist and then, click SupportAssist OS Recovery.

Backup media and recovery options

It is recommended to create a recovery drive to troubleshoot and fix problems that may occur with Windows. Dell proposes

multiple options for recovering Windows operating system on your Dell PC. For more information. see Dell Windows Backup

Media and Recovery Options.

WiFi power cycle

About this task

If your computer is unable to access the internet due to WiFi connectivity issues a WiFi power cycle procedure may be

performed. The following procedure provides the instructions on how to conduct a WiFi power cycle:

NOTE: Some ISPs (Internet Service Providers) provide a modem/router combo device.

Troubleshooting 75

Steps

1. Turn off your computer.

2. Turn off the modem.

3. Turn off the wireless router.

4. Wait for 30 seconds.

5. Turn on the wireless router.

6. Turn on the modem.

7. Turn on your computer.

Drain residual flea power (perform hard reset)

About this task

Flea power is the residual static electricity that remains in the computer even after it has been powered off and the battery is

removed.

For your safety, and to protect the sensitive electronic components in your computer, you are requested to drain residual flea

power before removing or replacing any components in your computer.

Draining residual flea power, also known as a performing a "hard reset", is also a common troubleshooting step if your computer

does not power on or boot into the operating system.

To drain residual flea power (perform a hard reset)

Steps

1. Turn off your computer.

2. Disconnect the power adapter from your computer.

3. Remove the base cover.

4. Remove the battery.

5. Press and hold the power button for 20 seconds to drain the flea power.

6. Install the battery.

7. Install the base cover.

8. Connect the power adapter to your computer.

9. Turn on your computer.

NOTE: For more information about performing a hard reset, see the knowledge base article 000130881 at

www.dell.com/support.

76 Troubleshooting

Getting help and contacting Dell

Self-help resources

You can get information and help on Dell products and services using these self-help resources:

Table 11. Self-help resources

Self-help resources Resource location

Information about Dell products and services www.dell.com

My Dell app

Tips

Contact Support In Windows search, type Contact Support, and press

Enter.

Online help for operating system www.dell.com/support/windows

Access top solutions, diagnostics, drivers and downloads, and

learn more about your computer through videos, manuals and

documents.

Your Dell computer is uniquely identified by a Service Tag or

Express Service Code. To view relevant support resources for

your Dell computer, enter the Service Tag or Express Service

Code at www.dell.com/support.

For more information on how to find the Service Tag for your

computer, see Locate the Service Tag on your computer.

Dell knowledge base articles for a variety of computer

concerns

1. Go to www.dell.com/support.

2. On the menu bar at the top of the Support page, select

Support > Knowledge Base.

3. In the Search field on the Knowledge Base page, type the

keyword, topic, or model number, and then click or tap the

search icon to view the related articles.

Contacting Dell

To contact Dell for sales, technical support, or customer service issues, see www.dell.com/contactdell.

NOTE: Availability varies by country/region and product, and some services may not be available in your country/region.

NOTE: If you do not have an active Internet connection, you can find contact information about your purchase invoice,

packing slip, bill, or Dell product catalog.

Getting help and contacting Dell 77

Table of Contents

DELL 3502 User Manual

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