Table of Contents
- Precision 3571 Service Manual
- Contents
- Working inside your computer
- Removing and installing components
- Recommended tools
- Screw list
- Major components of Latitude 5531
- SIM card
- Micro Secure Digital (SD) Card
- Base cover
- Wireless card
- Wireless Wide Area Network (WWAN) Card
- Solid-state drives
- Removing the 2230 solid-state drive—SSD1 slot
- Installing the 2230 solid-state drive—SSD1 slot
- Removing the 2280 solid-state drive—SSD1 slot
- Installing the 2280 solid-state drive—SSD1 slot
- Removing the 2230 solid-state drive—SSD2 slot
- Installing the 2230 solid-state drive—SSD2 slot
- Removing the 2280 solid-state drive—SSD2 slot
- Installing the 2280 solid-state drive—SSD2 slot
- Memory
- Dummy hard-drive filler
- Hard-drive assembly
- Hard drive
- Battery
- Battery cable
- Assembly inner frame
- LED board
- Heat sink
- Speakers
- System board
- Power button with fingerprint reader
- Smart card reader
- Coin-cell battery
- Keyboard assembly
- Keyboard bracket
- Display assembly
- Display bezel
- Display panel
- Camera
- eDP/display cable
- Sensor board
- Display hinges
- Display back cover
- Dummy SIM-card slot filler
- Palm-rest assembly
- Drivers and downloads
- BIOS setup
- Troubleshooting
- Handling swollen Lithium-ion batteries
- Dell SupportAssist Pre-boot System Performance Check diagnostics
- Built-in self-test (BIST)
- System-diagnostic lights
- Recovering the operating system
- Real-Time Clock (RTC Reset)
- Auto RTC reset
- Backup media and recovery options
- WiFi power cycle
- Drain residual flea power (perform hard reset)
- Getting help and contacting Dell
DELL 3571 User Manual
Displayed below is the user manual for 3571 by DELL which is a product in the Notebooks category. This manual has pages.
Related Manuals
Precision 3571
Service Manual
Regulatory Model: P104F
Regulatory Type: P104F007/P104F008
June 2022
Rev. A01
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.
© 2022 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other
trademarks may be trademarks of their respective owners.
Chapter 1: Working inside your computer...................................................................................... 7
Safety instructions.............................................................................................................................................................. 7
Before working inside your computer....................................................................................................................... 7
Safety precautions........................................................................................................................................................ 8
Electrostatic discharge—ESD protection............................................................................................................... 8
ESD field service kit ..................................................................................................................................................... 9
Transporting sensitive components.........................................................................................................................10
After working inside your computer........................................................................................................................ 10
BitLocker........................................................................................................................................................................ 10
Chapter 2: Removing and installing components...........................................................................11
Recommended tools...........................................................................................................................................................11
Screw list.............................................................................................................................................................................. 11
Major components of Latitude 5531............................................................................................................................. 12
SIM card............................................................................................................................................................................... 14
Removing the SIM card.............................................................................................................................................. 14
Installing the SIM card................................................................................................................................................ 15
Micro Secure Digital (SD) Card...................................................................................................................................... 17
Removing the microSD card...................................................................................................................................... 17
Installing the microSD card........................................................................................................................................ 17
Base cover........................................................................................................................................................................... 18
Removing the base cover...........................................................................................................................................18
Installing the base cover.............................................................................................................................................21
Wireless card...................................................................................................................................................................... 23
Removing the wireless card...................................................................................................................................... 23
Installing the wireless card........................................................................................................................................ 25
Wireless Wide Area Network (WWAN) Card............................................................................................................. 26
Removing the WWAN card....................................................................................................................................... 26
Installing the WWAN card..........................................................................................................................................27
Solid-state drives.............................................................................................................................................................. 29
Removing the 2230 solid-state drive—SSD1 slot............................................................................................... 29
Installing the 2230 solid-state drive—SSD1 slot................................................................................................. 30
Removing the 2280 solid-state drive—SSD1 slot................................................................................................31
Installing the 2280 solid-state drive—SSD1 slot................................................................................................. 32
Removing the 2230 solid-state drive—SSD2 slot.............................................................................................. 33
Installing the 2230 solid-state drive—SSD2 slot.................................................................................................34
Removing the 2280 solid-state drive—SSD2 slot.............................................................................................. 35
Installing the 2280 solid-state drive—SSD2 slot................................................................................................ 36
Memory................................................................................................................................................................................ 37
Removing the memory modules............................................................................................................................... 37
Installing the memory module...................................................................................................................................38
Dummy hard-drive filler................................................................................................................................................... 39
Removing the dummy hard-drive filler................................................................................................................... 39
Installing the dummy hard-drive filler..................................................................................................................... 40
Contents
Contents 3
Hard-drive assembly..........................................................................................................................................................41
Removing the hard-drive assembly..........................................................................................................................41
Installing the hard drive..............................................................................................................................................42
Hard drive............................................................................................................................................................................43
Removing the hard-drive...........................................................................................................................................43
Installing the hard drive..............................................................................................................................................44
Battery................................................................................................................................................................................. 45
Lithium-ion battery precautions...............................................................................................................................45
Removing the 4-cell battery..................................................................................................................................... 46
Installing the 4-cell battery........................................................................................................................................47
Removing the 6-cell battery..................................................................................................................................... 48
Installing the 6-cell battery....................................................................................................................................... 49
Battery cable...................................................................................................................................................................... 50
Removing the 4-cell battery cable .........................................................................................................................50
Installing the 4-cell battery cable............................................................................................................................. 51
Removing the 6-cell battery cable .........................................................................................................................52
Installing the 6-cell battery cable............................................................................................................................ 53
Assembly inner frame....................................................................................................................................................... 54
Removing the assembly inner frame.......................................................................................................................54
Installing the assembly inner frame.........................................................................................................................56
LED board........................................................................................................................................................................... 59
Removing the LED board...........................................................................................................................................59
Installing the LED board.............................................................................................................................................60
Heat sink.............................................................................................................................................................................. 61
Removing the heat sink and fan assembly - UMA............................................................................................... 61
Installing the heat sink and fan assembly - UMA.................................................................................................62
Removing the heat sink and fan assembly—discrete........................................................................................ 63
Installing the heat sink and fan assembly—discrete.......................................................................................... 65
Speakers.............................................................................................................................................................................. 66
Removing the speakers..............................................................................................................................................66
Installing the speakers................................................................................................................................................ 67
System board..................................................................................................................................................................... 68
Removing the system board..................................................................................................................................... 68
Installing the system board....................................................................................................................................... 72
Power button with fingerprint reader.......................................................................................................................... 74
Removing the power button with fingerprint reader.......................................................................................... 74
Installing the power button with fingerprint reader............................................................................................ 75
Smart card reader..............................................................................................................................................................77
Removing the smart card reader............................................................................................................................. 77
Installing the smart card reader............................................................................................................................... 79
Coin-cell battery................................................................................................................................................................80
Removing the coin-cell battery................................................................................................................................80
Installing the coin-cell battery...................................................................................................................................81
Keyboard assembly........................................................................................................................................................... 82
Removing the keyboard assembly........................................................................................................................... 82
Installing the keyboard assembly............................................................................................................................. 85
Keyboard bracket.............................................................................................................................................................. 87
Removing the keyboard bracket.............................................................................................................................. 87
Installing the keyboard bracket................................................................................................................................88
Display assembly................................................................................................................................................................90
4Contents
Removing the display assembly............................................................................................................................... 90
Installing the display assembly..................................................................................................................................93
Display bezel.......................................................................................................................................................................96
Removing the display bezel...................................................................................................................................... 96
Installing the display bezel.........................................................................................................................................98
Display panel.......................................................................................................................................................................99
Removing the display panel...................................................................................................................................... 99
Installing the display panel....................................................................................................................................... 102
Camera............................................................................................................................................................................... 105
Removing the camera...............................................................................................................................................105
Installing the camera................................................................................................................................................. 106
Removing the infrared camera............................................................................................................................... 107
Installing the infrared camera................................................................................................................................. 108
eDP/display cable............................................................................................................................................................108
Removing the eDP/display cable........................................................................................................................... 108
Installing the eDP cable.............................................................................................................................................110
Sensor board...................................................................................................................................................................... 111
Removing the sensor board...................................................................................................................................... 111
Installing the sensor board....................................................................................................................................... 112
Display hinges.................................................................................................................................................................... 112
Removing the display hinges....................................................................................................................................112
Installing the display hinges......................................................................................................................................114
Display back cover........................................................................................................................................................... 116
Removing the display back cover........................................................................................................................... 116
Installing the display back cover............................................................................................................................. 117
Dummy SIM-card slot filler.............................................................................................................................................118
Removing the dummy SIM-card slot filler............................................................................................................ 118
Installing the dummy SIM-card slot filler.............................................................................................................. 119
Palm-rest assembly..........................................................................................................................................................121
Removing the palm-rest assembly......................................................................................................................... 121
Installing the palm-rest assembly...........................................................................................................................122
Chapter 3: Drivers and downloads.............................................................................................. 124
Chapter 4: BIOS setup............................................................................................................... 125
BIOS overview..................................................................................................................................................................125
Entering BIOS setup program.......................................................................................................................................125
Navigation keys................................................................................................................................................................ 125
One time boot menu....................................................................................................................................................... 126
System setup options..................................................................................................................................................... 126
Updating the BIOS...........................................................................................................................................................136
Updating the BIOS in Windows.............................................................................................................................. 136
Updating the BIOS in Linux and Ubuntu.............................................................................................................. 136
Updating the BIOS using the USB drive in Windows........................................................................................ 136
Updating the BIOS from the F12 One-Time boot menu................................................................................... 137
System and setup password......................................................................................................................................... 138
Assigning a system setup password......................................................................................................................138
Deleting or changing an existing system setup password............................................................................... 138
Clearing CMOS settings.................................................................................................................................................139
Contents 5
Clearing BIOS (System Setup) and System passwords.........................................................................................139
Chapter 5: Troubleshooting....................................................................................................... 140
Handling swollen Lithium-ion batteries.......................................................................................................................140
Dell SupportAssist Pre-boot System Performance Check diagnostics..............................................................140
Running the SupportAssist Pre-Boot System Performance Check............................................................... 141
Built-in self-test (BIST).................................................................................................................................................. 141
M-BIST.......................................................................................................................................................................... 141
LCD Power rail test (L-BIST)..................................................................................................................................142
LCD Built-in Self Test (BIST)..................................................................................................................................142
System-diagnostic lights................................................................................................................................................142
Recovering the operating system................................................................................................................................144
Real-Time Clock (RTC Reset)...................................................................................................................................... 144
Auto RTC reset................................................................................................................................................................ 145
Backup media and recovery options........................................................................................................................... 145
WiFi power cycle..............................................................................................................................................................145
Drain residual flea power (perform hard reset)........................................................................................................145
Chapter 6: Getting help and contacting Dell............................................................................... 147
6Contents
Working inside your computer
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.
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.
Before working inside your computer
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.
1
Working inside your computer 7
5. Remove any media card and optical disc from your computer, if applicable.
6. After the computer is unplugged, press and hold the power button for 5 seconds to ground the system board.
CAUTION: Place the computer on a flat, soft, and clean surface to avoid scratches on the display.
7. Place the computer face down.
Safety precautions
The safety precautions chapter details the primary steps to be taken before performing any disassembly instructions.
Observe the following safety precautions before you perform any installation or break/fix procedures involving disassembly or
reassembly:
●Turn off the system and all attached peripherals.
●Disconnect the system and all attached peripherals from AC power.
●Disconnect all network cables, telephone, and telecommunications lines from the system.
●Use an ESD field service kit when working inside any notebook to avoid electrostatic discharge (ESD) damage.
●After removing any system component, carefully place the removed component on an anti-static mat.
●Wear shoes with non-conductive rubber soles to reduce the chance of getting electrocuted.
Standby power
Dell products with standby power must be unplugged before you open the case. Systems that incorporate standby power are
essentially powered while turned off. The internal power enables the system to be remotely turned on (wake on LAN) and
suspended into a sleep mode and has other advanced power management features.
Unplugging, pressing and holding the power button for 15 seconds should discharge residual power in the system board.
Bonding
Bonding is a method for connecting two or more grounding conductors to the same electrical potential. This is done through
the use of a field service electrostatic discharge (ESD) kit. When connecting a bonding wire, ensure that it is connected to bare
metal and never to a painted or non-metal surface. The wrist strap should be secure and in full contact with your skin, and
ensure that you remove all jewelry such as watches, bracelets, or rings prior to bonding yourself and the equipment.
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:
8Working inside your computer
●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.
●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.
Working inside your computer 9
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
NOTE: 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.
BitLocker
CAUTION: If BitLocker is not suspended before updating the BIOS, the next time you reboot the system it
will not recognize the BitLocker key. You will then be prompted to enter the recovery key to progress, and
the system will ask for this on each reboot. If the recovery key is not known this can result in data loss or
an unnecessary operating system reinstall. For more information about this subject, see Knowledge Article:
updating the BIOS on Dell systems with BitLocker enabled.
The installation of the following components triggers BitLocker:
●Hard disk drive or solid state drive
●System board
10 Working 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
●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 Screw type Quantity Screw image
Base cover Captive 9
Wireless card Captive 1
WWAN M2x3 1
M.2 2230/2280 Solid-state
drive thermal plate
M2x2 2
M.2 2230 Solid-state drive M2x4 1
Dummy Hard-drive filler M2x4 4
Hard drive M2x4 4
Hard-drive bracket M3x3 4
4-Cell battery M2x4 3
6-Cell battery M2x4 4
Assembly inner frame M2x3 17
2
Removing and installing components 11
Table 1. Screw list (continued)
Component Screw type Quantity Screw image
Fingerprint bracket M2x3 1
4-Cell support frame M2x4 2
LED board M2x3 1
Discrete heatsink Captive 7
UMA heatsink Captive 6
System fan M2x4 2
System board M2x3 2
USB Type-C bracket M2x4 3
eDP cable bracket M2x3 2
Power button board with
fingerprint reader
M2x2 2
Smart card reader M2x3 2
Keyboard assembly M2x2 27
Keyboard bracket M2x2 14
Display hinge M2.5x5 6
Display back cover M2.5x3.5 4
Display panel bracket M2.5x3.5 2
Major components of Latitude 5531
The following image shows the major components of Latitude 5531.
12 Removing and installing components
Removing and installing components 13
1. Base cover 2. Battery
3. Wireless card 4. Heat sink and fan assembly
5. Memory module 6. System board
7. Keyboard support bracket 8. Speakers
9. Palm-rest assembly 10. Display assembly
11. Power-button board 12. Keyboard
13. Coin-cell battery 14. Fingerprint module
15. Assembly inner frame 16. Solid-state drive
17. Solid-state drive thermal plate 18. WWAN card
19. WWAN bracket
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.
SIM card
Removing the SIM card
Prerequisites
1. Follow the procedure in Before working inside your computer.
NOTE: SIM card or SIM tray removal is only available on systems that are shipped with WWAN module. The procedure for
removal is only applicable for systems that are shipped with a WWAN module.
CAUTION: Removing the SIM card with the computer turned on, may cause data loss or damage to the card.
Ensure that your computer is turned off or the network connections are disabled.
About this task
The following image provides a visual representation of the SIM card removal procedure.
14 Removing and installing components
Steps
1. Insert a pin into the release hole of the SIM tray and push inward until the tray is released.
2. Slide the SIM tray out of the slot on the computer.
3. Remove the SIM card from the SIM tray.
4. Slide the SIM card tray into the slot, until it clicks into place.
Installing the SIM card
Prerequisites
If you are replacing a component, remove the existing component before the installation procedure.
Removing and installing components 15
NOTE: SIM card or SIM tray removal is only available on systems that are shipped with WWAN module. Hence, removing
procedure is only applicable for systems that are shipped with WWAN module.
About this task
The following image indicates the location of the SIM card and provides a visual representation of the installation procedure.
Steps
1. Insert a pin into the hole of the SIM tray and push inward until the tray is released.
2. Slide the SIM card tray out of the slot on the computer.
3. Place the SIM card into the SIM tray with the metallic contact facing up.
4. Align the SIM tray with the slot on the computer and carefully slide it in.
5. Slide the SIM tray into the slot, until it clicks into place.
16 Removing and installing components
Next steps
1. Follow the procedure in After working inside your computer.
Micro Secure Digital (SD) Card
Removing the microSD card
Prerequisites
1. Follow the procedure in Before working inside your computer.
About this task
The following images indicate the location of the microSD card and provide a visual representation of the removal procedure.
Steps
1. Push the microSD card to release it from the computer.
2. Slide the microSD card out of the computer.
Installing the microSD card
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the microSD card and provides a visual representation of the installation procedure.
Removing and installing components 17
Steps
1. Align the microSD card to its slot on the computer.
2. Slide the microSD card into the slot until it clicks into place.
Next steps
1. Follow the procedure in After working inside your computer.
Base cover
Removing the base cover
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
About this task
The following images indicate the location of the base cover and provide a visual representation of the removal procedure.
18 Removing and installing components
Removing and installing components 19
20 Removing and installing components
Steps
1. Loosen the nine captive screws that secure the base cover to the palm-rest and keyboard assembly.
2. Using the flat-end of plastic scribe, pry the base cover from the U-shaped indents at the top edge of the base cover and
continue to work on the sides to release the base cover from the palm-rest and keyboard assembly.
3. Lift the base cover off the palm-rest and keyboard assembly.
4. Disconnect the battery cable from the system board.
5. Press and hold the power button for 20 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 procedure.
About this task
The following images indicate the location of the base cover and provide a visual representation of the installation procedure.
Removing and installing components 21
22 Removing and installing components
Steps
1. Connect the battery cable to the system board.
2. Adhere the tape to secure the battery cable.
3. Align the screw holes on the base cover with the screw holes on the palm-rest assembly and keyboard assembly, and then
snap the base cover into place.
4. Tighten the nine captive screws that secure the base cover to the palm-rest and keyboard assembly.
Next steps
1. Install the microSD card.
2. Install the SIM card.
3. 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 SIM card.
3. Remove the microSD card.
4. Remove the base cover.
Removing and installing components 23
About this task
The following images indicate the location of the wireless card and provide a visual representation of the removal procedure.
Steps
1. NOTE: When removing the wireless card from the computer, if the adhesive pad which helps secure the wireless card in
place is removed from the computer along with the WLAN card, adhere it back to the computer.
Loosen the single captive screw that secures the wireless-card bracket to the wireless card and system board.
2. Remove the wireless-card bracket from the wireless card.
3. Disconnect the antenna cables from the wireless card.
4. Slide and remove the wireless card from the wireless-card slot.
24 Removing and installing components
Installing the wireless card
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicate the location of the wireless card and provides a visual representation of the installation procedure.
Steps
1. Connect the antenna cables to the wireless card.
The following table provides the antenna-cable color scheme:
Removing and installing components 25
Table 2. Antenna-cable color scheme
Connectors on the
wireless card
Antenna-cable color Silkscreen marking
Main White MAIN △ (white triangle)
Auxiliary Black AUX ▲ (black triangle)
2. Align the notch on the wireless card with the tab on the wireless-card slot on the system board.
3. Slide and insert the wireless card at an angle into the wireless-card slot on the system board.
4. Align the screw hole on the wireless-card bracket to the screw hole on the wireless card and system board.
5. Tighten the single captive screw that secures the wireless-card bracket to the wireless card and the system board.
CAUTION: Ensure that the plastic washer is part of captive screw when you tighten the captive screw.
Tightening the captive screw without the plastic washer may damage the wireless-card bracket and the
wireless card.
Next steps
1. Install the microSD card.
2. Install the SIM card.
3. Install the base cover.
4. Follow the procedure in After working inside your computer.
Wireless Wide Area Network (WWAN) Card
Removing the WWAN card
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
About this task
The following image indicates the location of the WWAN card and provide a visual representation of the removal procedure.
26 Removing and installing components
Steps
1. Remove the single (M2x3) screw that secures the WWAN-card bracket to the WWAN card.
2. Slide and remove the WWAN card bracket off the WWAN card.
3. Disconnect the antenna cables from the connectors on the WWAN card.
4. Slide and remove the WWAN card from the WWAN card slot.
Installing the WWAN card
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
Removing and installing components 27
About this task
The following image indicates the location of the WWAN card and provides a visual representation of the installation procedure.
Steps
1. Connect the antenna cables to the WWAN card.
The following table provides the antenna-cable color scheme:
Table 3. Antenna-cable color scheme
Connectors on the
wireless card
Antenna-cable color Silkscreen marking
Main White MAIN △ (white triangle)
Auxiliary Black AUX ▲ (black triangle)
28 Removing and installing components
2. Align the notch on the WWAN card with the tab on the WWAN slot.
3. Slide the WWAN card at an angle into the WWAN slot.
4. Replace the single screw (M2x3) to secure the WWAN-card bracket to the WWAN card.
NOTE: For instructions on how to find your computer's IMEI (International Mobile Station Equipment Identity) number,
see the knowledge base article 000143678 at www.dell.com/support.
Next steps
1. Install the microSD card.
2. Install the SIM card.
3. Install the base cover.
4. Follow the procedure in After working inside your computer.
Solid-state drives
Removing the 2230 solid-state drive—SSD1 slot
Prerequisites
1. Follow the procedure in Before working inside your computer.
NOTE: Solid-state drives are fragile. Exercise care when handling the solid-state drive.
NOTE: To avoid data loss, do not remove the solid-state drive while the computer is in sleep or on state.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
About this task
NOTE: Depending on the configuration ordered, your computer may support a 2230 solid-state drive, or a 2280 solid-state
drive in M.2 slot.
NOTE: This procedure applies only to computers shipped with a 2230 solid-state drive installed in M.2 slot.
The following image indicates the location of the 2230 solid-state drive and provides a visual representation of the removal
procedure.
Removing and installing components 29
Steps
1. Remove the single screw (M2x4) that secures the M.2 2230 solid-state drive to the system board .
2. Slide and remove the M.2 2230 solid-state drive from the solid-state drive slot on the system board.
Installing the 2230 solid-state drive—SSD1 slot
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
NOTE: Solid-state drives are fragile. Exercise care when handling the solid-state drive.
NOTE: Depending on the configuration ordered, your computer may support a 2230 solid-state drive, or a 2280 solid-state
drive in M.2 slot.
NOTE: This procedure applies only if you are installing a 2230 solid-state drive in M.2 slot.
The following images indicate the location of the 2230 solid-state drive that is installed in M.2 slot and provides a visual
representation of the installation procedure.
30 Removing and installing components
Steps
1. Align the notch on the M.2 2230 solid-state drive with the tab on the solid-state drive slot.
2. Slide the M.2 2230 solid-state drive into the M.2 2230 solid-state drive slot on the system board.
3. Replace the single screw (M2x4) that secures the solid-state drive to the system board.
Next steps
1. Install the microSD card.
2. Install the SIM card.
3. Install the base cover.
4. Follow the procedure in After working inside your computer.
Removing the 2280 solid-state drive—SSD1 slot
Prerequisites
1. Follow the procedure in Before working inside your computer.
NOTE: Solid-state drives are fragile. Exercise care when handling the solid-state drive.
NOTE: To avoid data loss, do not remove the solid-state drive while the computer is in sleep or on state.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
About this task
NOTE: Depending on the configuration ordered, your computer may support a 2280 solid-state drive, or a 2280 solid-state
drive in M.2 slot.
NOTE: This procedure applies only to computers shipped with a 2280 solid-state drive installed in M.2 slot.
Removing and installing components 31
The following image indicates the location of the 2280 solid-state drive and provides a visual representation of the removal
procedure.
Steps
1. Remove the single screw (M2x4) that secures the M.2 2280 solid-state drive to the system board .
2. Slide and remove the M.2 2280 solid-state drive from the solid-state drive slot on the system board.
Installing the 2280 solid-state drive—SSD1 slot
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
NOTE: Solid-state drives are fragile. Exercise care when handling the solid-state drive.
NOTE: Depending on the configuration ordered, your computer may support a 2280 solid-state drive, or a 2280 solid-state
drive in M.2 slot.
NOTE: This procedure applies only if you are installing a 2280 solid-state drive in M.2 slot.
The following images indicate the location of the 2280 solid-state drive that is installed in M.2 slot and provides a visual
representation of the installation procedure.
32 Removing and installing components
Steps
1. Align the notch on the M.2 2280 solid-state drive with the tab on the solid-state drive slot.
2. Slide the M.2 2280 solid-state drive into the M.2 2280 solid-state drive slot on the system board.
3. Replace the single screw (M2x4) that secures the solid-state drive to the system board.
Next steps
1. Install the microSD card.
2. Install the SIM card.
3. Install the base cover.
4. Follow the procedure in After working inside your computer.
Removing the 2230 solid-state drive—SSD2 slot
Prerequisites
1. Follow the procedure in Before working inside your computer.
NOTE: Solid-state drives are fragile. Exercise care when handling the solid-state drive.
NOTE: To avoid data loss, do not remove the solid-state drive while the computer is in sleep or on state.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
About this task
NOTE: Depending on the configuration ordered, your computer may support a 2230 solid-state drive, or a 2280 solid-state
drive in M.2 slot.
NOTE: This procedure applies only to computers shipped with a 2230 solid-state drive installed in M.2 slot.
Removing and installing components 33
The following image indicates the location of the 2230 solid-state drive that is installed and provides a visual representation of
the removal procedure.
Steps
1. Remove the two screws (M2x2) that secures the solid-state drive thermal plate to the palm-rest and keyboard assembly.
2. Remove the solid-state drive thermal plate out of the computer.
3. Remove the single screw (M2x4) that secures the solid-state drive holder and solid-state drive to the system board.
4. Slide and remove the 2230 solid-state drive from the M.2 solid-state drive slot on the system board.
Installing the 2230 solid-state drive—SSD2 slot
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
NOTE: Solid-state drives are fragile. Exercise care when handling the solid-state drive.
NOTE: Depending on the configuration ordered, your computer may support a 2230 solid-state drive, or a 2280 solid-state
drive in M.2 slot.
NOTE: This procedure applies only if you are installing a 2230 solid-state drive in M.2 slot. When you install the M.2 2230
solid-state drive after purcharse, you must purchase a customer kit that includes holder and a screw to install the M.2 2230
solid-state drive,
NOTE: While installing M.2 PCIe 4.0 2230 solid-state drive on SSD2 slot, ensure you install the heat sink and thermal pad.
The following images indicate the location of the 2230 solid-state drive and provides a visual representation of the installation
procedure.
34 Removing and installing components
Steps
1. Align and insert the solid-state drive holder on the system board to accommodate the M.2 2230 solid-state drive.
2. Align the notch on the M.2 2230 solid-state drive with the tab on the solid-state drive slot.
3. Slide the M.2 2230 solid-state drive into the solid-state drive slot on the system board
4. Replace the single screw (M2x4) that secures the solid-state drive to the holder and system board.
NOTE: If the computer is not shipped with a M.2 2230 solid-state drive, you must obtain a customer kit that includes
holder and a screw to install the M.2 2230 solid-state drive.
5. Align and place the solid-state drive thermal plate on the 2230 solid-state drive slot.
6. Replace the two screws (M2x2) that secure the solid-state drive thermal plate to the palm-rest and keyboard assembly.
Next steps
1. Install the microSD card.
2. Install the SIM card.
3. Install the base cover.
4. Follow the procedure in After working inside your computer.
Removing the 2280 solid-state drive—SSD2 slot
Prerequisites
1. Follow the procedure in Before working inside your computer.
NOTE: Solid-state drives are fragile. Exercise care when handling the solid-state drive.
NOTE: To avoid data loss, do not remove the solid-state drive while the computer is in sleep or on state.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
Removing and installing components 35
About this task
NOTE: Depending on the configuration ordered, your computer may support a 2280 solid-state drive, or a 2230 solid-state
drive in M.2 slot.
NOTE: This procedure applies only to computers shipped with a 2280 solid-state drive installed in M.2 slot.
The following image indicates the location of the 2280 solid-state drive that is installed in M.2 slot and provides a visual
representation of the removal procedure.
Steps
1. Remove the two screws (M2x2) that secure the solid-state drive thermal plate to the palm-rest and keyboard assembly.
2. Remove the solid-state drive thermal plate out of the computer.
3. Slide and remove the 2280 solid-state drive from the M.2 solid-state drive slot on the system board.
Installing the 2280 solid-state drive—SSD2 slot
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
NOTE: Solid-state drives are fragile. Exercise care when handling the solid-state drive.
NOTE: Depending on the configuration ordered, the computer one may support a 2280 solid-state drive, or a 2230
solid-state drive in M.2 slot.
NOTE: This procedure is applicable if you are installing a 2280 solid-state drive in M.2 slot.
NOTE: While installing M.2 PCIe 4.0 2280 solid-state drive on SSD2 slot, ensure you install the heat sink and thermal pad.
36 Removing and installing components
The following images indicate the location of the 2280 solid-state drive that is installed in M.2 slot and provides a visual
representation of the installation procedure.
Steps
1. Align the notch on the M.2 2280 solid-state drive with the tab on the M.2 solid-state drive slot.
2. Slide the M.2 2280 solid-state drive into the M.2 solid-state drive slot on the system board.
3. Place the solid-state drive thermal plate over the solid-state drive.
4. Align the screw holes on the solid-state drive and thermal plate with the screw hole on the palm-rest and keyboard
assembly.
5. Replace the two screws (M2x2) that secure the 2280 solid-state drive and thermal plate to the palm-rest and keyboard
assembly.
Next steps
1. Install the microSD card.
2. Install the SIM card.
3. Install the base cover.
4. Follow the procedure in After working inside your computer.
Memory
Removing the memory modules
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
Removing and installing components 37
About this task
NOTE: Precision 3571 supports two memory slots.
The following image indicates the location of the memory module and provides a visual representation of the removal procedure.
Steps
1. Using your fingertips, spread apart the securing clips on the memory-module slot until the memory module pops up.
2. Slide and remove the memory module from the memory-module slot.
NOTE: Repeat step 1 to step 2 to remove any other memory modules installed in your computer.
Installing the memory module
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
NOTE: Precision 3571 supports two memory slots.
The following images indicate the location of the memory module and provide a visual representation of the installation
procedure.
38 Removing and installing components
Steps
1. Align the notch on the memory module with the tab on the memory-module slot.
2. . Slide the memory module firmly into the slot at an angle and press the memory module down until it clicks into place.
NOTE: If you do not hear the click, remove the memory module and reinstall it.
NOTE: Repeat step 1 to step 4 to install any other memory modules in your computer.
NOTE: For 4G/5G WWAN configuration, the re-usable absorbers need to be transferred to the DIMM1/DIMM2 slot
while replacing the system board.
Next steps
1. Install the base cover.
2. Install the microSD card.
3. Install the SIM tray.
4. Follow the procedure in After working inside your computer.
Dummy hard-drive filler
Removing the dummy hard-drive filler
Prerequisites
1. Follow the procedure in Before working inside your computer.
Removing and installing components 39
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
About this task
The following image indicates the location of the dummy hard-drive filler and provides a visual representation of the removal
procedure.
Steps
1. Remove the four screws (M2x4) that secure the dummy hard-drive filler to the system board.
2. Remove the dummy hard-drive filler from the computer.
Installing the dummy hard-drive filler
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The figure indicates the location of the dummy hard-drive filler and provides a visual representation of the installation procedure.
40 Removing and installing components
Steps
1. Align the screw holes on the dummy hard-drive filler with the screw holes on the palm-rest assembly.
2. Replace the four screws (M2x4) that secure the dummy hard-drive filler to the computer.
Next steps
1. Install the base cover.
2. Install the microSD card.
3. Install the SIM card.
4. Follow the procedure in After working inside your computer.
Hard-drive assembly
Removing the hard-drive assembly
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
About this task
The following images indicate the location of the hard drive and provide a visual representation of the removal procedure.
Removing and installing components 41
Steps
1. Disconnect the hard-drive cable from the connector on the system board.
2. Remove the four screws (M2x4) that secure the hard drive to the palm-rest and keyboard assembly.
3. Lift and remove the hard drive from the computer.
Installing the hard drive
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the hard drive and provide a visual representation of the installation procedure.
42 Removing and installing components
Steps
1. Align the screw holes on hard drive with the screw holes on the palm-rest and keyboard assembly.
2. Replace the four screws (M2x4) that secure the hard drive to the computer.
3. Connect the hard drive cable to the connector on the system board.
Next steps
1. Install the base cover.
2. Install the microSD card.
3. Install the SIM tray.
4. 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 SIM card.
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the hard drive.
About this task
The following images indicate the location of the hard drive and provide a visual representation of the removal procedure.
Removing and installing components 43
Steps
1. Disconnect the interposer from connector on the hard drive.
2. Flip the hard-drive assembly.
3. Remove the four screws (M3x3) that secure the hard drive to the hard-drive bracket.
4. Lift the hard-drive assembly away from the hard-drive bracket.
NOTE: The following steps are applicable only for systems shipped with a 4-cell battery. You cannot install the 2.5-inch
SATA hard-drive on systems with a 6-cell battery.
NOTE: The hard-drive, the hard-drive bracket and the hard-drive interposer are all optional components.
Installing the hard drive
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the hard drive and provide a visual representation of the installation procedure.
44 Removing and installing components
Steps
1. Align the screw holes on hard drive with the screw holes on the hard-drive bracket.
2. Replace the four screws (M3x3) to secure the hard drive to the hard-drive bracket.
3. Flip the hard-drive assembly, and connect the interposer to the connector on the hard drive.
NOTE: The following steps are applicable only for systems shipped with a 4-cell battery. You cannot install the 2.5-inch
SATA hard-drive on systems with a 6-cell battery.
NOTE: The hard-drive, the hard-drive bracket and the hard-drive interposer are all optional components.
Next steps
1. Install the hard drive.
2. Install the base cover.
3. Install the microSD card.
4. Install the SIM card.
5. Follow the procedure in After working inside your computer.
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.
Removing and installing components 45
●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 4-cell battery
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
About this task
The following images indicate the location of the 4-cell (64 Wh) battery and provides a visual representation of the removal
procedure.
46 Removing and installing components
Steps
1. Disconnect the battery cable from the connector on the system board, if it was not disconnected earlier.
2. Remove the three screws (M2x4) that secure the 4-cell battery to the palm-rest and keyboard assembly.
3. Lift the 4-cell battery, along with its cable, off the palm-rest and keyboard assembly.
Installing the 4-cell battery
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the 4-cell (64 Wh) battery and provide a visual representation of the installation
procedure.
Removing and installing components 47
Steps
1. Align the screw holes on the 4-cell battery with the screw holes on the palm-rest and keyboard assembly.
2. Replace the three screws (M2x4) that secure the 4-cell battery to the palm-rest and keyboard assembly.
3. Connect the battery cable to the connector on the system board.
Next steps
1. Install the base cover.
2. Install the microSD card.
3. Install the SIM tray.
4. Follow the procedure in After working inside your computer.
Removing the 6-cell battery
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
About this task
The following images indicate the location of the 6-cell (97 Wh) battery and provides a visual representation of the removal
procedure.
48 Removing and installing components
Steps
1. Disconnect the battery cable from the connector on the system board, if it was not disconnected earlier.
2. Remove the four screws (M2x4) that secure the 6-cell battery to the palm-rest and keyboard assembly.
3. Lift the 6-cell battery, along with its cable, off the palm-rest and keyboard assembly.
Installing the 6-cell battery
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the 6-cell (97 Wh) battery and provide a visual representation of the installation
procedure.
Removing and installing components 49
Steps
1. Align the screw holes on the 6-cell battery with the screw holes on the palm-rest and keyboard assembly.
2. Replace the four screws (M2x4) that secure the 6-cell battery to the palm-rest and keyboard assembly.
3. Connect the battery cable to the connector on the system board.
Next steps
1. Install the base cover.
2. Install the microSD card.
3. Install the SIM tray.
4. Follow the procedure in After working inside your computer.
Battery cable
Removing the 4-cell battery cable
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the battery.
50 Removing and installing components
NOTE: If battery is disconnected from system board for service, then there is a delay during system boot as the system
undergoes RTC battery reset.
About this task
The following images indicate the location of the battery cable and provide a visual representation of the removal procedure.
Steps
1. Flip the battery and unroute the battery cable from the routing guides on the battery.
2. Disconnect the battery cable from the connector on the battery.
3. Lift the battery cable away from the battery.
Installing the 4-cell battery cable
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the battery cable and provide a visual representation of the installation procedure.
Removing and installing components 51
Steps
1. Connect the battery cable to the connector on the battery.
2. Route the battery cable through the routing guides on the battery.
Next steps
1. Install the battery.
2. Install the base cover.
3. Install the microSD card.
4. Install the SIM tray.
5. Follow the procedure in After working inside your computer.
Removing the 6-cell battery cable
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the battery.
NOTE: If battery is disconnected from system board for service, then there is a delay during system boot as the system
undergoes RTC battery reset.
About this task
The following images indicate the location of the battery cable and provide a visual representation of the removal procedure.
52 Removing and installing components
Steps
1. Flip the battery and unroute the battery cable from the routing guides on the battery.
2. Disconnect the battery cable from the connector on the battery.
3. Lift the battery cable away from the battery.
Installing the 6-cell battery cable
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the battery cable and provide a visual representation of the installation procedure.
Removing and installing components 53
Steps
1. Connect the battery cable to the connector on the battery.
2. Route the battery cable through the routing guides on the battery.
Next steps
1. Install the battery.
2. Install the base cover.
3. Install the microSD card.
4. Install the SIM tray.
5. Follow the procedure in After working inside your computer.
Assembly inner frame
Removing the assembly inner frame
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the battery.
6. Remove the hard drive.
7. Remove the wireless card.
8. Remove the WWAN card.
About this task
The following images indicate the location of the assembly inner frame and provide a visual representation of the removal
procedure.
54 Removing and installing components
Removing and installing components 55
Steps
1. Unroute the antenna cables from the routing guides on the assembly inner frame.
2. Remove the single screw (M2x3) that secures the fingerprint bracket to the assembly inner frame.
3. Remove the two screws (M2x4) that secure the 4-cell support frame to the assembly inner frame.
4. Remove the fifteen screws (M2x3) that secure the assembly inner frame to the system board and the palm-rest assembly.
5. Lift the assembly inner frame off the system board and the palm-rest assembly.
Installing the assembly inner frame
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the location of the assembly inner frame and provides a visual representation of the installation
procedure.
56 Removing and installing components
Removing and installing components 57
Steps
1. Align the screw holes on the assembly inner frame with the screw holes on the system board and the palm-rest assembly.
NOTE: Ensure that the tab on the top-left corner of the assembly inner frame is installed underneath the tab on the
palm-rest assembly.
2. Replace the fifteen screws (M2x3) that secure the assembly inner frame to the system board and the palm-rest assembly.
3. Replace the two screws (M2x4) to secure the 4-cell support frame to the assembly inner frame.
4. Align and place the fingerprint bracket on the assembly inner frame.
5. Replace the single screw (M2x3) to secure the fingerprint bracket to the assembly inner frame.
6. Route the antennas cable through the routing guides on the assembly inner frame.
Next steps
1. Install the battery.
2. Install the hard drive.
3. Install the WWAN card.
4. Install the wireless card.
5. Install the base cover.
6. Install the microSD card.
7. Install the SIM tray.
8. Follow the procedure in After working inside your computer.
58 Removing and installing components
LED board
Removing the LED board
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the 2280 solid-state drive or 2230 solid-state drive.
6. Remove the battery.
7. Remove the hard drive.
8. Remove the wireless card.
9. Remove the WWAN card.
10. Remove the assembly inner frame.
About this task
The following image indicates the location of the LED board and provides a visual representation of the removal procedure.
Steps
1. Open the latch and disconnect the smartcard reader cable from the connector on the USH-daughter board.
2. Remove the smartcard reader cable away from the USH-daughter board.
Removing and installing components 59
3. Disconnect the LED-board cable from the connector on the system board.
4. Peel the LED-board cable from the computer.
5. Remove the single screw (M2x3) that secures the LED board to the palm-rest assembly.
6. Lift the LED board and cable away from the palm-rest assembly.
Installing the LED board
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the LED board and provide a visual representation of the installation procedure.
Steps
1. Align the screw hole on the LED board with the screw hole on the palm-rest assembly.
2. Replace the single screw (M2x3) to secure the LED board to the palm-rest assembly.
3. Route the LED-board cable and connect the cable to the connector on the system board.
CAUTION: Do not route the LED-board cable under the coin-cell battery. Incorrect routing of the LED-board
cable may damage the LED board, LED-board cable, and system board.
4. Route the smartcard reader cable on the palm-rest assembly.
5. Connect the smartcard reader cable to the connector on the USH-daughter board and close the latch.
60 Removing and installing components
Next steps
1. Install the assembly inner frame.
2. Install the battery.
3. Install the hard drive.
4. Install the WWAN card.
5. Install the wireless card.
6. Install the 2280 solid-state drive or 2230 solid-state drive.
7. Install the base cover.
8. Install the microSD card.
9. Install the SIM tray.
10. Follow the procedure in After working inside your computer.
Heat sink
Removing the heat sink and fan assembly - UMA
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
About this task
The following images indicate the location of the heat sink and fan assembly and provide a visual representation of the removal
procedure.
Removing and installing components 61
Steps
1. Disconnect the system fan cable from the connector on the system board.
2. Remove the two screws (M2x4) that secure the system fan to the system board.
3. In reverse sequential order (as indicated on the heat sink), loosen the six captive screws that secure the heat sink and fan
assembly to the system board.
4. Lift the heat sink and fan assembly off the system board.
Installing the heat sink and fan assembly - UMA
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
CAUTION: Incorrect alignment of the heat sink can damage the system board and processor.
NOTE: If either the system board or the heat sink is replaced, use the thermal pad/paste provided in the kit to ensure that
thermal conductivity is achieved.
About this task
The following images indicate the location of the heat sink and fan assembly and provide a visual representation of the
installation procedure.
62 Removing and installing components
Steps
1. Align the screw holes on the heat sink and fan assembly with the screw holes on the system board.
2. In sequential order (as indicated on the heat sink), tighten the six captive screws that secure the heat sink and fan assembly
to the system board.
3. Replace the two screws (M2x4) that secure the system fan to the frame.
4. Connect the system fan cable to the connector on the system board.
Next steps
1. Install the base cover.
2. Install the microSD card.
3. Install the SIM card.
4. Follow the procedure in After working inside your computer.
Removing the heat sink and fan assembly—discrete
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
Removing and installing components 63
About this task
The following images indicate the location of the heat sink and fan assembly and provide a visual representation of the removal
procedure.
Steps
1. Disconnect the system fan cable from the connector on the system board.
2. Remove the two screws (M2x4) that secure the system fan to the system board.
3. In reverse sequential order (as indicated on the heat sink), loosen the seven captive screws that secure the heat sink and
fan assembly to the system board.
4. Lift the heat sink and fan assembly off the system board.
64 Removing and installing components
Installing the heat sink and fan assembly—discrete
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
CAUTION: Incorrect alignment of the heat sink can damage the system board and processor.
NOTE: If either the system board or the heat sink is replaced, use the thermal pad/paste provided in the kit to ensure that
thermal conductivity is achieved.
About this task
The following images indicate the location of the heat sink and fan assembly and provide a visual representation of the
installation procedure.
Removing and installing components 65
Steps
1. Align the screw holes on the heat sink and fan assembly with the screw holes on the system board.
2. In sequential order (as indicated on the heat sink), tighten the seven captive screws that secure the heat sink and fan
assembly to the system board.
3. Replace the two screws (M2x4) that secure the system fan to the frame.
4. Connect the system fan cable to the connector on the system board.
Next steps
1. Install the base cover.
2. Install the microSD card.
3. Install the SIM tray.
4. 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 SIM card.
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the hard drive.
6. Remove the battery.
7. Remove the assembly inner frame.
About this task
The following image indicates the location of the speakers and provide a visual representation of the removal procedure.
66 Removing and installing components
Steps
1. Disconnect the speaker cable from the connector on the system board.
2. Peel the tape that secures the speaker cable to the palm-rest and keyboard assembly.
3. Note the speaker cable routing, and unroute the speaker cable from the routing guides on the palm-rest and keyboard
assembly.
4. Lift the speakers, along with the 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 procedure.
About this task
The following image indicates the location of the speaker and provides a visual representation of the installation procedure.
Removing and installing components 67
Steps
1. Using the alignment posts and rubber grommets, place the speakers on the slots of the palm-rest and keyboard assembly.
2. Route the speaker cable through the bottom-left corner of the system and ensure that the speaker cables are routed firmly
into the routing guides on the palm-rest and keyboard assembly.
3. Connect the speaker cable to the connector on the system board.
Next steps
1. Install the assembly inner frame.
2. Install the battery.
3. Install the hard drive.
4. Install the base cover.
5. Install the microSD card.
6. Install the SIM tray.
7. 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 SIM card.
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the 2280 solid-state drive or 2230 solid-state drive.
6. Remove the battery.
68 Removing and installing components
7. Remove the hard drive.
8. Remove the wireless card.
9. Remove the WWAN card.
10. Remove the assembly inner frame.
11. Remove the heat sink.
About this task
The following image indicates the connectors on your system board.
Figure 1. System board connectors
1. Fingerprint reader connector
2. Wireless connector
3. Memory modules
4. eDP cable connector
5. Display cable connector
6. System fan connector
7. Clickpad cable connector
8. Solid-state drive—slot 1
9. Battery cable connector
10. Solid-state drive—slot 2
11. LED cable connector
12. USH board connector
13. WWAN connector
14. Hard-drive cable connector
15. Speaker cable connector
The following images indicate the location of the system board and provide a visual representation of the removal procedure.
Removing and installing components 69
70 Removing and installing components
Steps
NOTE: The system board can be removed and installed with the heat sink attached in order to simplify the procedure and
preserve the thermal bond between the system board and heat sink. In order to do so, technicians must also remove the
two screws (M2x5) that secure the system fan to the system board.
NOTE: For the models shipped with a fingerprint reader, disconnect the fingerprint reader cable from the connector on the
system board before removing the system board from the palm-rest assembly and keyboard assembly.
1. Disconnect the fingerprint reader cable from the connector on the system board.
2. Remove the three screws (M2x4) that secure the USB Type-C bracket to the system board.
3. Remove the two screws (M2x3) that secure the eDP cable bracket to the system board.
4. Lift the eDP cable bracket away from the computer.
5. Peel the tape that secures the display cable to the system board.
6. Using the pull tab, disconnect the display cable from the connector on the system board.
7. Disconnect the eDP cable from the connector on the system board and unroute it from the routing guide.
8. Disconnect IR camera cable from the connector on the system board (for models shipped with an IR camera).
9. Disconnect the touchscreen cable from the connector on the system board (for models shipped with a touchscreen).
10. Open the latch and disconnect the USH board cable from the connector on the system board.
11. Open the latch and disconnect the clickpad cable from the connector on the system board.
12. Open the latch and disconnect the LED board cable from the connector on the system board.
13. Pry the coin-cell battery off the palm-rest assembly and remove it from the routing guides on the palm-rest assembly.
NOTE: When you disconnect the coin-cell battery cable from the connecter on the system board, the CMOS setting is
cleared.
14. Remove the two screws (M2x3) that secure the system board to the palm-rest assembly and keyboard assembly.
15. Lift the system board off the palm-rest assembly and keyboard assembly.
NOTE: Transfer the re-useable thermal pad (WWAN configuration only) and the DIMM absorbers over to the new
replacement system board.
Removing and installing components 71
Installing the system board
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the system board and provide a visual representation of the installation procedure.
72 Removing and installing components
Steps
NOTE: The system board can be removed and installed with the heat sink attached in order to simplify the procedure and
preserve the thermal bond between the system board and heat sink. In order to do so, technicians must also remove the
two screws (M2x5) that secure the system fan to the system board.
1. Slide the system board to make the USB Type-C connector to toe-in to the hinge saddle and align the screw holes on the
system board with the screw holes on the palm-rest assembly and keyboard assembly.
2. Replace the two screws (M2x3) to secure the system board to the palm-rest assembly and keyboard assembly.
3. Route the coin-cell battery cable through the routing guide on palm-rest assembly and adhere the coin-cell battery on the
palm-rest assembly.
4. Connect the fingerprint reader cable to the connector on the system board.
5. Align and place the USB Type-C bracket on the system board.
6. Replace the three screws (M2x4) that secure the USB Type-C bracket to the system board.
7. Route the display and eDP cable through the routing guide on the system board.
8. Connect the eDP cable to the connector on the system board.
9. Connect the display cable to the connector on the system board.
10. Adhere the tape that secures the display cable to the system board.
11. Align the screw holes on the eDP cable bracket with the screw holes on the system board.
Removing and installing components 73
12. Replace the two screws (M2x3) that secure the eDP cable bracket to the system board.
13. Connect the touchscreen cable from the connector on the system board (for models shipped with a touchscreen).
14. Connect IR camera cable from the connector on the system board (for models shipped with an IR camera).
15. Connect the clickpad cable to the system board and close the latch to secure the cable to the system board.
16. Connect the USH board cable to the system board and close the latch to secure the cable to the system board.
Next steps
1. Install the heat sink.
2. Install the assembly inner frame.
3. Install the battery.
4. Install the hard drive.
5. Install the WWAN card.
NOTE: For 4G/5G WWAN configurations, ensure that you transfer the absorbers to the new system board.
6. Install the wireless card.
7. Install the 2280 solid-state drive or 2230 solid-state drive.
8. Install the base cover.
9. Install the microSD card.
10. Install the SIM card.
11. Follow the procedure in After working inside your computer.
Power button with fingerprint reader
Removing the power button with fingerprint reader
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the 2280 solid-state drive or 2230 solid-state drive.
6. Remove the memory modules.
7. Remove the battery.
8. Remove the hard drive.
9. Remove the wireless card.
10. Remove the WWAN card.
11. Remove the assembly inner frame.
12. Remove the system board.
NOTE: The system board can be removed with the heat sink attached in order to simplify the procedure and preserve
the thermal bond between the system board and heat sink.
About this task
The following image indicates the location of the power-button board and provide a visual representation of the removal
procedure.
74 Removing and installing components
Steps
1. Remove the two screws (M2x2) that secure the power-button board to the palm-rest assembly.
2. Lift the power-button board off the palm-rest assembly.
Installing the power button with fingerprint reader
About this task
The following image indicates the location of the power-button board and provide a visual representation of the installation
procedure.
Removing and installing components 75
Steps
1. Align and place the power-button board on the palm-rest assembly.
2. Replace the two screws (M2x2) that secure the power-button board to the palm-rest assembly.
Next steps
1. Install the system board.
2. Install the assembly inner frame.
3. Install the battery.
4. Install the memory modules.
5. Install the hard drive.
6. Install the WWAN card.
7. Install the wireless card.
8. Install the 2280 solid-state drive or 2230 solid-state drive.
9. Install the base cover.
10. Install the microSD card.
11. Install the SIM card.
12. Follow the procedure in After working inside your computer.
76 Removing and installing components
Smart card reader
Removing the smart card reader
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the 2280 solid-state drive or 2230 solid-state drive.
6. Remove the battery.
7. Remove the hard drive.
8. Remove the WLAN card.
9. Remove the WWAN card.
10. Remove the assembly inner frame.
About this task
The following images indicate the location of the smart card reader and provide a visual representation of the removal
procedure.
Removing and installing components 77
Steps
1. Open the latch and disconnect the smart card reader cable from the connector on the USH board.
2. Peel the smart card reader cable from the palm-rest and keyboard assembly.
3. Remove the two screws (M2x3) that secure the smart card reader to the palm-rest and keyboard assembly.
4. Lift the smart card reader off the palm-rest and keyboard assembly.
78 Removing and installing components
Installing the smart card reader
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the smart card reader and provide a visual representation of the installation
procedure.
Removing and installing components 79
Steps
1. Align and place the smart card reader on the palm-rest and keyboard assembly.
2. Replace the two screws (M2x3) that secure the smart card reader to the palm-rest and keyboard assembly.
3. Adhere the smart card reader cable on the palm-rest and keyboard assembly.
4. Connect the smart card reader cable to the connector on the USH board.
Next steps
1. Install the assembly inner frame.
2. Install the battery.
3. Install the hard drive.
4. Install the WWAN card.
5. Install the wireless card.
6. Install the 2280 solid-state drive or 2230 solid-state drive.
7. Install the base cover.
8. Install the microSD card.
9. Install the SIM card.
10. Follow the procedure in After working inside your computer.
Coin-cell battery
Removing the coin-cell battery
Prerequisites
1. Follow the procedure in Before working inside your computer.
CAUTION: Removing the coin-cell battery resets the BIOS setup program’s settings to default. It is
recommended that you note the BIOS setup program’s settings before removing the coin-cell battery.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the 2280 solid-state drive or 2230 solid-state drive.
6. Remove the battery.
7. Remove the hard drive.
8. Remove the wireless card.
9. Remove the WWAN card.
10. Remove the assembly inner frame.
About this task
The following image indicates the location of the coin-cell battery and provides a visual representation of the removal procedure.
80 Removing and installing components
Steps
1. Disconnect the coin-cell battery cable from the connector on the system board.
2. Unroute the coin-cell battery cable from the routing guides on the palm-rest assembly.
3. Pry and remove the coin-cell battery from the palm-rest assembly.
Installing the coin-cell battery
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the location of the coin-cell battery and provides a visual representation of the installation
procedure.
Removing and installing components 81
Steps
1. Adhere the coin-cell battery to the slot on the palm-rest assembly.
2. Route the coin-cell battery cable through the routing guides on the palm-rest assembly.
3. Connect the coin-cell battery cable to the connector on the system board.
Next steps
1. Install the assembly inner frame.
2. Install the battery.
3. Install the hard drive.
4. Install the WWAN card.
5. Install the wireless card.
6. Install the 2280 solid-state drive or 2230 solid-state drive.
7. Install the base cover.
8. Install the microSD card.
9. Install the SIM card.
10. Follow the procedure in After working inside your computer.
Keyboard assembly
Removing the keyboard assembly
Prerequisites
1. Follow the procedure in Before working inside your computer.
82 Removing and installing components
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the 2280 solid-state drive or 2230 solid-state drive.
6. Remove the battery.
7. Remove the hard drive.
8. Remove the wireless card.
9. Remove the WWAN card.
10. Remove the assembly inner frame.
11. Remove the system board.
NOTE: The system board can be removed with the heat sink attached in order to simplify the procedure and preserve
the thermal bond between the system board and heat sink.
About this task
The following images indicate the location of the keyboard assembly and provide a visual representation of the removal
procedure.
Removing and installing components 83
Steps
1. NOTE: For models shipped with a USH module, disconnect the USH cable from the keyboard bracket.
Open the latch and disconnect the backlight cable and the keyboard cable from the connector on the clickpad.
2. Remove the 27 screws (M2x2) that secure the keyboard assembly to the palm-rest assembly.
3. Remove the keyboard assembly off the palm-rest assembly.
84 Removing and installing components
NOTE: If the keyboard support bracket is replaced, transfer the re-useable thermal pad (WWAN configuration only)
over to the new replacement keyboard support bracket.
Installing the keyboard assembly
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
NOTE: The system board can be installed with the heat sink attached in order to simplify the procedure and preserve the
thermal bond between the system board and heat sink.
The following images indicate the location of the keyboard assembly and provide a visual representation of the installation
procedure.
Removing and installing components 85
Steps
1. Align and place the keyboard assembly on the palm-rest assembly.
2. Replace the 27 screws (M2x2) that secure the keyboard assembly to the palm-rest assembly.
3. Connect the keyboard cable and keyboard backlit cable to the connectors on the clickpad.
NOTE: For models shipped with a USH module, connect the USH cable to the keyboard bracket.
86 Removing and installing components
Next steps
1. Install the system board.
2. Install the assembly inner frame.
3. Install the battery.
4. Install the hard drive.
5. Install the WWAN card.
6. Install the wireless card.
7. Install the 2280 solid-state drive or 2230 solid-state drive.
8. Install the base cover.
9. Install the microSD card.
10. Install the SIM card.
11. Follow the procedure in After working inside your computer.
Keyboard bracket
Removing the keyboard bracket
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the2280 solid-state drive or 2230 solid-state drive.
6. Remove the battery.
7. Remove the hard drive.
8. Remove the WLAN card.
9. Remove the WWAN card.
10. Remove the assembly inner frame.
11. Remove the system board.
NOTE: The system board can be removed with the heat sink attached in order to simplify the procedure and preserve
the thermal bond between the system board and heat sink.
12. Remove the Keyboard assembly.
About this task
The following images indicate the location of the keyboard bracket and provide a visual representation of the removal procedure.
Removing and installing components 87
Steps
1. Remove the fourteen screws (M2x2) that secure the keyboard to the keyboard bracket.
2. Remove the keyboard from the keyboard bracket.
Installing the keyboard bracket
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
NOTE: The system board can be installed with the heat sink attached in order to simplify the procedure and preserve the
thermal bond between the system board and heat sink.
The following image indicates the location of the keyboard bracket and provides a visual representation of the installation
procedure.
88 Removing and installing components
Steps
1. Align and place the keyboard on the keyboard bracket.
2. Replace the 14 screws (M2x2) to secure the keyboard to the keyboard bracket.
NOTE: For 5G WWAN configuration, ensure that you transfer the absorber to new keyboard bracket.
Next steps
1. Install the keyboard assembly.
2. Install the system board.
3. Install the assembly inner frame.
4. Install the battery.
5. Install the hard drive.
6. Install the WWAN card.
7. Install the wireless card.
8. Install the 2280 solid-state drive or 2230 solid-state drive.
9. Install the base cover.
10. Install the microSD card.
11. Install the SIM card.
12. Follow the procedure in After working inside your computer.
Removing and installing components 89
Display assembly
Removing the display assembly
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the Wireless card.
6. Remove the WWAN card.
About this task
The following images indicate the location of the display assembly and provide a visual representation of the removal procedure.
90 Removing and installing components
Removing and installing components 91
92 Removing and installing components
Steps
1. Remove the two screws (M2x3) that secure the eDP cable bracket to the system board.
2. Lift the eDP cable bracket away from the computer.
3. Peel the tape that secures the display cable to the system board.
4. Using the pull tab, disconnect the display cable from the connector on the system board.
5. Disconnect the eDP cable from the connector on the system board and unroute it from the routing guide.
6. Disconnect the IR camera cable from its connector on the system board (for models shipped with an IR camera).
7. Disconnect the touchscreen cable from its connector on the system board (for models shipped with a touchscreen).
8. Remove the six screws (M2.5x5) that secure the display hinges to the system board.
9. Lift the base assembly slightly at an angle.
10. Lift the base assembly away from the display assembly.
Installing the display assembly
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
Removing and installing components 93
About this task
The following images indicate the location of the display assembly and provide a visual representation of the installation
procedure.
94 Removing and installing components
Removing and installing components 95
Steps
1. Place the display assembly on the system, and align the screw holes on the display hinges with screw holes on the system
board.
2. Replace the six screws (M2.5x5) that secure the display hinges to the system board.
3. Close the display.
4. Route the display and eDP cable through the routing guide on the system board.
5. Connect the eDP cable to the connector on the system board.
6. Connect the display cable to the connector on the system board.
7. Adhere the tape that secures the display cable to the system board.
8. Connect the IR camera cable from its connector on the system board (for models shipped with an IR camera).
9. Connect the touchscreen cable from its connector on the system board (for models shipped with a touchscreen).
10. Align the screw holes on the eDP cable bracket with the screw holes on the system board.
11. Replace the two screws (M2x3) that secure the eDP cable bracket to the system board.
Next steps
1. Install the WWAN card.
2. Install the Wireless card.
3. Install the base cover.
4. Install the microSD card.
5. Install the SIM card.
6. 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 SIM card.
3. Remove the microSD card.
4. Remove the base cover.
96 Removing and installing components
5. Remove the Wireless card.
6. Remove the WWAN card.
7. Remove the display assembly.
About this task
The following images indicate the location of the display bezel and provide a visual representation of the removal procedure.
Steps
NOTE: The display bezel is adhered to the display panel with adhesive. Insert a plastic scribe into the recesses near both
hinge caps to start the prying process to release the display bezel. Pry along the outside edge of the display bezel and work
your way around the entire display bezel until the display bezel is separated from the display cover.
CAUTION: Carefully pry and remove the display bezel to minimize the risk of display panel damages.
1. Using a plastic scribe, pry open the recesses near the left and right hinges on the bottom edge of the display bezel.
2. Carefully work your way around the edges of the display bezel to release it from the display back cover.
3. Lift the display bezel from the display assembly.
Removing and installing components 97
Installing the display bezel
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the location of the display bezel and provides a visual representation of the installation procedure.
Steps
1. Align and place the display bezel on the display assembly.
2. Gently snap the display bezel into place.
Next steps
1. Install the display assembly.
2. Install the WWAN card.
3. Install the Wireless card.
4. Install the base cover.
5. Install the microSD card.
6. Install the SIM card.
7. Follow the procedure in After working inside your computer.
98 Removing and installing components
Display panel
Removing the display panel
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the wireless card.
6. Remove the WWAN card.
7. Remove the display assembly.
8. Remove the display bezel.
About this task
The following images indicate the location of the display panel and provide a visual representation of the removal procedure.
Removing and installing components 99
100 Removing and installing components
Removing and installing components 101
Steps
NOTE: The display panel is preassembled with the display brackets as a single service part. Do not pull the Stretch Release
(SR) tapes and separate the brackets from the display panel.
1. Remove the four screws (M2.5x3.5) that secure the display panel to the display back cover.
NOTE: While removing the display panel, disengage the display panel tabs from the display cover before flipping it over.
2. Lift and open the display panel to access the display cable.
3. Peel the conductive tape on the display cable connector.
4. Open the latch and disconnect the cable from the connector on the display panel.
5. Lift the display panel away from the display back cover.
Installing the display panel
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the display panel and provide a visual representation of the installation procedure.
102 Removing and installing components
Removing and installing components 103
Steps
1. Connect the display cable to the connector on the display panel and close the latch.
2. Adhere the conductive tape to secure the display cable to the display panel.
3. Close the display panel and the display back cover to assemble.
NOTE: Ensure that the display panel tabs are inserted into the slots on the display cover.
4. Replace the four screws (M2.5x3.5) to secure the display panel to the display back cover.
104 Removing and installing components
Next steps
1. Install the display bezel.
2. Install the display assembly.
3. Install the WWAN card.
4. Install the wireless card.
5. Install the base cover.
6. Install the microSD card.
7. Install the SIM card.
8. 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 SIM card.
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the Wireless card.
6. Remove the WWAN card.
7. Remove the display assembly.
8. Remove the display bezel.
9. Remove the display panel.
10. Remove the display hinges.
About this task
The following images indicate the location of the camera module and provide a visual representation of the removal procedure.
Removing and installing components 105
Steps
1. Peel the two conductive tapes that secure the camera module in place.
NOTE: An abrupt peeling may also remove the camera shutter from the display bezel and damage the camera shutter.
2. Disconnect the camera cable from the connector on the camera module.
3. Carefully pry up the camera module starting from the prying point at the bottom edge of the camera module.
4. Carefully lift the camera module from the display back cover.
Installing the camera
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the camera and provide a visual representation of the installation procedure.
Steps
1. Align and place the camera module into the slot on the display back cover.
2. Connect the camera cable to the connector on the camera module.
3. Adhere the tape to secure the camera cable in place.
Next steps
1. Install the display hinge.
2. Install the display panel.
3. Install the display bezel.
4. Install the display assembly.
5. Install the WWAN card.
6. Install the Wireless card.
106 Removing and installing components
7. Install the base cover.
8. Install the microSD card.
9. Install the SIM card.
10. Follow the procedure in After working inside your computer.
Removing the infrared camera
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the Wireless card.
6. Remove the WWAN card.
7. Remove the display assembly.
8. Remove the display bezel.
9. Remove the display panel.
10. Remove the display hinges.
About this task
The following images indicate the location of the infrared camera module and provide a visual representation of the removal
procedure.
Steps
1. Peel the tape that secures the infrared camera cable.
NOTE: An abrupt peeling may also remove the camera shutter from the display bezel and damage the camera shutter.
2. Lift the latch and disconnect the infrared camera cable from the connector on the camera module.
3. Carefully pry up the camera module starting from the prying point at the bottom edge of the camera module.
4. Carefully lift the camera module from the display back cover.
Removing and installing components 107
Installing the infrared camera
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the location of the infrared camera and provides a visual representation of the installation
procedure.
Steps
1. Align and place the infrared camera module into the slot on the display back cover.
2. Connect the infrared camera cable to the connector on the camera module.
3. Adhere the tape to secure the infrared camera cable in place.
Next steps
1. Install the display hinge.
2. Install the display panel.
3. Install the display bezel.
4. Install the display assembly.
5. Install the WWAN card.
6. Install the Wireless card.
7. Install the base cover.
8. Install the microSD card.
9. Install the SIM card.
10. Follow the procedure in After working inside your computer.
eDP/display cable
Removing the eDP/display cable
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
108 Removing and installing components
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the Wireless card.
6. Remove the WWAN card.
7. Remove the display assembly.
8. Remove the display bezel.
9. Remove the display panel.
About this task
The following images indicate the location of the eDP cable and provide a visual representation of the removal procedure.
Steps
1. Disconnect the eDP/display cable from the connector on the camera module.
Removing and installing components 109
2. Peel the conductive tape and unroute the eDP/display cable to release it from adhesive and lift the eDP/display cable from
the display back cover.
Installing the eDP cable
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the location of the eDP cable and provide a visual representation of the installation procedure.
Steps
1. Connect the eDP/display cable to the connector on the camera.
110 Removing and installing components
2. Adhere the eDP/display cable to the display back cover.
3. Adhere the conductive tape and route the eDP/display cable to the display back cover.
Next steps
1. Install the display panel.
2. Install the display bezel.
3. Install the display assembly.
4. Install the WWAN card.
5. Install the Wireless card.
6. Install the base cover.
7. Install the microSD card.
8. Install the SIM card.
9. Follow the procedure in After working inside your computer.
Sensor board
Removing the sensor board
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the Wireless card.
6. Remove the WWAN card.
7. Remove the display assembly.
8. Remove the display bezel.
9. Remove the display panel.
About this task
NOTE: This procedure applies only to computers shipped with a sensor board.
The following image indicates the location of the sensor board and provide a visual representation of the removal procedure.
Removing and installing components 111
Steps
1. Open the latch and disconnect the LED cable from connector on the sensor board.
2. Gently lift the sensor board away from the display back cover.
Installing the sensor board
About this task
The following image indicates the location of the sensor board and provide a visual representation of the removal procedure.
Steps
1. Align and place the sensor board on the display back cover.
2. Connect the LED cable to the connector on the sensor board and close the latch.
Next steps
1. Install the display panel.
2. Install the display bezel.
3. Install the display assembly.
4. Install the WWAN card.
5. Install the Wireless card.
6. Install the base cover.
7. Install the microSD card.
8. Install the SIM card.
9. Follow the procedure in After working inside your computer.
Display hinges
Removing the display hinges
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
112 Removing and installing components
4. Remove the base cover.
5. Remove the Wireless card.
6. Remove the WWAN card.
7. Remove the display assembly.
8. Remove the display bezel.
9. Remove the display panel.
About this task
The following images indicate the location of the display hinges and provide a visual representation of the removal procedure.
Removing and installing components 113
Steps
1. Remove the single (M2.5x3.5) screw that secures the right hinge to the display back cover.
2. Lift and remove the right hinge from the display back cover.
3. Remove the single (M2.5x3.5) screw that secures the left hinge to the display back cover.
4. Lift and remove the left hinge from the display back cover.
Installing the display hinges
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following images indicate the location of the display hinges and provides a visual representation of the installation
procedure.
114 Removing and installing components
Steps
1. Align the screw hole on the left hinge with the screw hole on the display back cover.
2. Replace the single (M2.5x3.5) screw to secure the left hinge to the display back cover.
3. Align the screw hole on the right hinge with the screw hole on the display back cover.
4. Replace the single (M2.5x3.5) screw to secure the right hinge to the display back cover.
Next steps
1. Install the display panel.
Removing and installing components 115
2. Install the display bezel.
3. Install the display assembly.
4. Install the WWAN card.
5. Install the Wireless card.
6. Install the base cover.
7. Install the microSD card.
8. Install the SIM card.
9. Follow the procedure in After working inside your computer.
Display back cover
Removing the display back cover
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the wireless card.
6. Remove the WWAN card.
7. Remove the display assembly.
8. Remove the display bezel.
9. Remove the display panel.
10. Remove the camera module.
11. Remove the eDP/display cable.
12. Remove the sensor board.
13. Remove the display hinges.
About this task
The following images indicate the location of the display back cover and provide a visual representation of the removal
procedure.
116 Removing and installing components
Steps
After performing the steps in the pre-requisites, we are left with the display back cover.
Installing the display back cover
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the location of the display back cover and provides a visual representation of the installation
procedure.
Removing and installing components 117
Steps
Place the display back cover on a flat surface.
Next steps
1. Install the display hinges.
2. Install the sensor board.
3. Install the eDP/display cable.
4. Install the camera module.
5. Install the display panel.
6. Install the display bezel.
7. Install the display assembly.
8. Install the WWAN card.
9. Install the wireless card.
10. Install the base cover.
11. Install the microSD card.
12. Install the SIM card.
13. Follow the procedure in After working inside your computer.
Dummy SIM-card slot filler
Removing the dummy SIM-card slot filler
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the memory module.
6. Remove the 2280 solid-state drive or 2230 solid-state drive.
7. Remove the battery.
8. Remove the hard drive.
118 Removing and installing components
9. Remove the WLAN card.
10. Remove the WWAN card.
11. Remove the assembly inner frame.
12. Remove the speakers
13. Remove the system board.
NOTE:
The system board can be removed with the heat sink attached in order to simplify the procedure and preserve the
thermal bond between the system board and heat sink.
14. Remove the power-button board.
15. Remove the LED board.
16. Remove the smart card reader.
17. Remove the keyboard assembly.
18. Remove the display assembly.
19. Remove the palm-rest assembly.
About this task
NOTE: For models shipped with WLAN antennas only, the dummy SIM-card slot filler is a separate service part and is not
included with replacement palm rest. As a result, the dummy SIM-card slot filler must be removed and then reinstalled when
replacing the palm-rest assembly.
The following images indicate the dummy SIM-card slot filler and provides a visual representation of the dummy SIM-card slot
filler removal procedure.
Steps
1. Push the dummy SIM-card slot filler from the top side of the palm-rest assembly.
2. Lift the dummy SIM-card slot filler out of the palm-rest assembly.
Installing the dummy SIM-card slot filler
Prerequisites
If you are replacing a component, remove the necessary component before the installation procedure.
Removing and installing components 119
About this task
The following images indicate the location of the dummy SIM-card slot filler and provides a visual representation of the dummy
SIM-card slot filler installation procedure.
Steps
1. Place the dummy SIM-card slot filler into its compartment on the palm rest.
NOTE: Ensure that the dummy SIM-card slot filler is aligned with the ribs on the palm-rest assembly.
2. Press the dummy SIM-card slot filler until it clicks into place and ensure it fits securely into the SIM card slot.
Next steps
1. Install the display assembly.
2. Install the keyboard assembly.
3. Install the smart card reader.
4. Install the LED board.
5. Install the power-button board.
6. Install the system board.
7. Install the assembly inner frame.
8. Install the speakers.
9. Install the battery.
10. Install the WWAN card.
11. Install the wireless card.
12. Install the 2280 solid-state drive or 2230 solid-state drive.
13. Install the memory module.
14. Install the base cover.
15. Install the microSD card.
16. Install the SIM card.
17. Follow the procedure in After working inside your computer.
120 Removing and installing components
Palm-rest assembly
Removing the palm-rest assembly
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the SIM card.
3. Remove the microSD card.
4. Remove the base cover.
5. Remove the memory module.
6. Remove the 2280 solid-state drive or 2230 solid-state drive.
7. Remove the battery.
8. Remove the hard drive or dummy hard-drive slot filler.
9. Remove the WLAN card.
10. Remove the WWAN card.
11. Remove the assembly inner frame.
12. Remove the speakers
13. Remove the system board.
NOTE:
The system board can be removed with the heat sink attached in order to simplify the procedure and preserve the
thermal bond between the system board and heat sink.
14. Remove the power-button board.
15. Remove the LED board.
16. Remove the smart card reader.
17. Remove the keyboard assembly.
18. Remove the display assembly.
19. Remove the dummy SIM-card slot filler.
About this task
The following image indicates the palm-rest assembly and provides a visual representation of the removal procedure.
Removing and installing components 121
Steps
After performing the steps in the pre-requisites, we are left with the palm-rest assembly.
Installing the palm-rest assembly
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the palm-rest assembly and provides a visual representation of the installation procedure.
122 Removing and installing components
Steps
1. Place the palm-rest assembly on a flat surface.
2. Remove the dummy SIM card filler for the non-WWAN LTE configuration.
Next steps
1. Install the dummy SIM-card slot filler.
2. Install the display assembly.
3. Install the keyboard assembly.
4. Install the smart card reader.
5. Install the LED board.
6. Install the power-button board.
7. Install the system board.
8. Install the assembly inner frame.
9. Install the speakers.
10. Install the battery.
11. Install the Hard drive or dummy hard-drive slot filler
12. Install the WWAN card.
13. Install the WLAN card.
14. Install the 2280 solid-state drive or 2230 solid-state drive.
15. Install the memory module.
16. Install the base cover.
17. Install the microSD card.
18. Install the SIM card.
19. Follow the procedure in After working inside your computer.
Removing and installing components 123
BIOS 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.
BIOS overview
The BIOS manages data flow between the computer's operating system and attached devices such as hard disk, video adapter,
keyboard, mouse, and printer.
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 4. 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.
4
BIOS setup 125
Table 4. Navigation keys (continued)
Keys Navigation
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.
One time boot menu
To enter one time boot menu, turn on your computer, and then press F12 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
The boot sequence screen also displays the option to access the System Setup screen.
System setup options
NOTE: Depending on your computer and its installed devices, the items listed in this section may or may not appear.
Table 5. System setup options—System information menu
Overview
Precision 3571
BIOS Version Displays the BIOS version number.
Service Tag Displays the Service Tag of the computer.
Asset Tag Displays the Asset Tag of the computer.
Manufacture Date Displays the manufacture date of the computer.
Ownership Date Displays the ownership date of the computer.
Express Service Code Displays the express service code of the computer.
Ownership Tag Displays the Ownership Tag of the computer.
Signed Firmware Update Displays whether the Signed Firmware Update is enabled on your computer.
Battery Information
Primary Displays that battery is primary.
Battery Level Displays the battery level of the computer.
Battery State Displays the battery state of the computer.
Health Displays the battery health of the computer.
AC Adapter Displays whether the AC adapter is connected or not.
Battery Life Type Display the Battery Life type of the computer
Processor Information
126 BIOS setup
Table 5. System setup options—System information menu (continued)
Overview
Processor Type Displays the processor type.
Maximum Clock Speed Displays the maximum processor clock speed.
Minimum Clock Speed Displays the minimum processor clock speed.
Current Clock Speed Displays the current processor clock speed.
Core Count Displays the number of cores on the processor.
Processor ID Displays the processor identification code.
Processor L2 Cache Displays the processor L2 Cache size.
Processor L3 Cache Displays the processor L3 Cache size.
Microcode Version Displays the microcode version.
Intel Hyper-Threading Capable Displays whether the processor is Hyper-Threading (HT) capable.
64-Bit Technology Displays whether 64-bit technology is used.
Memory Information
Memory Installed Displays the total computer memory installed.
Memory Available Displays the total computer memory available.
Memory Speed Displays the memory speed.
Memory Channel Mode Displays single or dual channel mode.
Memory Technology Displays the technology used for the memory.
DIMM_SLOT 1 Displays the DIMM 1 memory size.
DIMM_SLOT 2 Displays the DIMM 2 memory size.
Devices Information
Panel Type Displays the Panel Type of the computer.
Video Controller Displays the video controller type of the computer.
Video Memory Displays the video memory information of the computer.
Wi-Fi Device Displays the wireless device information of the computer.
Native Resolution Displays the native resolution of the computer.
Video BIOS Version Displays the video BIOS version of the computer.
Audio Controller Displays the audio controller information of the computer.
Bluetooth Device Displays the Bluetooth device information of the computer.
LOM MAC Address Displays the LAN On Motherboard (LOM) MAC address of the computer.
Pass Through MAC Address Displays the pass through MAC address of the computer.
Cellular Device Displays the M.2 PCIe SSD information of the computer.
dGPU Video Controller Displays the Discrete graphics card information on the computer.
Table 6. System setup options—Boot Configuration menu
Boot Configuration
Boot Sequence
Boot mode Displays the boot mode.
Boot Sequence Displays the boot sequence.
Secure Digital (SD) Card Boot Enable or disable the SD card read-only boot.
By default, the Secure Digital (SD) Card Boot option is not enabled.
BIOS setup 127
Table 6. System setup options—Boot Configuration menu (continued)
Boot Configuration
Secure Boot
Enable Secure Boot Enable or disable the secure boot feature.
By default, the option is not enabled.
Secure Boot Mode Enable or disable to change the secure boot mode options.
By default, the Deployed Mode is enabled.
Expert Key Management
Enable Custom Mode Enable or disable custom mode.
By default, the custom mode option is not enabled.
Custom Mode Key Management Select the custom values for expert key management.
Table 7. System setup options—Integrated Devices menu
Integrated Devices
Date/Time Displays the current date in MM/DD/YYYY format and current time in
HH:MM:SS AM/PM format.
Camera Enables or disable the camera.
By default, the Enable Camera option is selected
Audio
Enable Audio Enable or disable the integrated audio controller.
By default, all the options are enabled.
USB/Thunderbolt Configuration ●Enable or disable booting from USB mass storage devices connected to
external USB ports.
By default, the Enable External USB Ports option is enabled.
●Enable or disable booting from USB mass storage devices such as external
hard drive, optical drive, and USB drive.
By default, the Enable USB Boot Support option is enabled.
Enable Thunderbolt Technology
Support
Enable or disable the associated ports and adapters.
By default, the Enable Thunderbolt Technology Support option is selected.
Enable Thunderbolt Boot Support Enable or disable the Thunderbolt adapter peripheral device and USB devices
connected to the Thunderbolt adapter to be used during BIOS Pre-boot.
By default, the Enable Thunderbolt Boot Support option is disabled.
Enable Thunderbolt (and PCIe behind
TBT) pre-boot modules
Enable or disable the PCIe devices that are connected through a Thunderbolt
adapter to execute the PCIe devices UEFI Option ROM (if present) during
pre-boot.
By default, the Enable Thunderbolt (and PCIe behind TBT) pre-boot
modules option is disabled.
Disable USB4 PCIE Tunneling Disable the USB4 PCIE Tunneling option.
By default, the option is disabled.
Video/Power only on Type-C Ports Enable or disable the Type-C port functionality to video or only power.
By default, the Video/Power only on Type-C Ports option is disabled.
Type-C Dock Override Enables to use connected Type-C Dell Dock to provide data stream with
external USB ports disabled. When Type-C Dock override is enabled, the
Video/Audio/Lan submenu is activated.
128 BIOS setup
Table 7. System setup options—Integrated Devices menu (continued)
Integrated Devices
By default, the Type-C Dock Override option is enabled.
Video Enable or disable the usage of video on Dell Dock external ports.
By default, the Video option is disabled.
Audio Enable or disable the usage of audio on Dell Dock external ports.
By default, the Audio option is enabled.
Lan Enable or disable the usage of LAN on Dell Dock external ports.
By default, the Lan option is enabled.
Miscellaneous Devices Enable or disable Fingerprint Reader device.
By default, the Enable Fingerprint Reader Device option is enabled.
Unobtrusive Mode
Enable Unobtrusive Mode Enable or disable all the computer light and sound.
By default, the Enable Unobtrusive Mode option is disabled.
Table 8. System setup options—Storage menu
Storage
SMART Reporting
Enable SMART Reporting Enable or disable Self-Monitoring, Analysis, and Reporting Technology
(SMART) during computer startup.
By default, the Enable SMART Reporting option is not enabled.
Drive Information
SATA-1
Type Displays the SATA-1 type information of the computer.
Device Displays the SATA-1 device information of the computer.
M.2 PCIe SSD-1
Type Displays the M.2 PCIe SSD-1 type information of the computer.
Device Displays the M.2 PCIe SSD-1 device information of the computer.
M.2 PCIe SSD-2
Type Displays the M.2 PCIe SSD-2 type information of the computer.
Device Displays the M.2 PCIe SSD-2 device information of the computer.
Enable MediaCard
Secure Digital (SD) Card Enable or disable the SD card.
By default, the Secure Digital (SD) Card option is enabled.
Secure Digital (SD) Card Read-Only Mode Enable or disable the SD card read-only mode.
By default, the Secure Digital (SD) Card Read-Only Mode option is not
enabled.
Table 9. System setup options—Display menu
Display
Display Brightness
BIOS setup 129
Table 9. System setup options—Display menu (continued)
Display
Brightness on battery power Enable to set screen brightness when the computer is running on battery
power.
Brightness on AC power Enable to set screen brightness when the computer is running on AC power.
Touchscreen Enable to activate the Touchscreen on operating system
Full Screen Logo Enable or disable full screen logo.
By default, the option is not enabled.
Table 10. System setup options—Connection menu
Connection
Network Controller Configuration
Integrated NIC Controls the on-board LAN controller.
By default, the Enabled with PXE option is enabled.
Enable UEFI Network Stack Enable or disable UEFI Network Stack.
By default, the Enable UEFI Network Stack and Enabled w/PXE option are
enabled.
Wireless Device Enable
WWAN/GPS Enable or disable the internal WWAN/GPS device
By default, the option enabled.
WWAN Bus Mode Set the interface type of the Wireless Wan (WWAN) card.
By default, the Bus Mode PCIe option is enabled.
WLAN Enable or disable the internal WLAN device
By default, the option enabled.
Bluetooth Enable or disable the internal Bluetooth device
By default, the option enabled.
Contactless smartcard/NFC Enable or disable the internal Contactless smartcard/NFC device
By default, the option enabled.
Enable UEFI Network Stack Enable or disable UEFI Network Stack and controls the on-board LAN
Controller.
By default, the Enable UEFI Network Stack option are enabled.
Wireless Radio Control
Control WLAN radio Sense the connection of the computer to a wired network and subsequently
disable the selected wireless radios (WLAN).
By default, the option is disabled.
Control WWAN radio Sense the connection of the computer to a wired network and subsequently
disable the selected wireless radios (WWAN).
By default, the option is disabled.
HTTPs Boot Feature
HTTPs Boot Enable or disable the HTTPs Boot feature.
By default, the HTTPs Boot option is enabled.
HTTPs Boot Mode With Auto Mode, the HTTPs Boot extracts Boot URL from the DHCP. With
Manual Mode, the HTTPs Boot reads Boot URL from the user-provided data.
130 BIOS setup
Table 10. System setup options—Connection menu (continued)
Connection
By default, the Auto Mode option is enabled.
Table 11. System setup options—Power menu
Power
Battery configuration Enables the computer to run on battery during peak power usage hours. Use
the table Custom Charge Start and Custom Charge Stop, to prevent AC
power usage between certain times of each day.
By default, the Adaptive option is enabled.
Advanced Configuration
Enable Advanced Battery Charge
Configuration
Enable or disable the advanced battery charge configuration.
By default, the Enable Advanced Battery Charge Configuration option is
disabled.
Peak Shift Enables the computer to run on battery during peak power usage hours.
By default, the Enable Peak Shift option is enabled.
Enable Peak Shift
USB PowerShare
Enable USB PowerShare Enable or disable the USB PowerShare.
By default, the Enable USB PowerShare option is disabled
Thermal Management Enables to cool the fan and processor heat management to adjust the
computer performance, noise, and temperature.
By default, the Optimized option is enabled.
USB Wake Support
Wake on Dell USB-C Dock When enabled, connecting a Dell USB-C Dock will wake the computer from
standby.
By default, the Wake on Dell USB-C Dock option is enabled.
Block Sleep Enables to block entering sleep (S3) mode in the operating system.
By default, the Block Sleep option is disabled.
Lid Switch Enable or disable the lid switch.
By default, the Lid Switch option is enabled.
Intel Speed Shift Technology Enable or disable the Intel speed shift technology support.
By default, the Intel Speed Shift Technology option is enabled.
Table 12. System setup options—Security menu
Security
TPM 2.0 Security
TPM 2.0 Security On Enable or disable TPM 2.0 security options.
By default, the TPM 2.0 Security On option is enabled.
Attestation Enable Enables to control whether the Trusted Platform Module (TPM) Endorsement
Hierarchy is available to the operating system.
By default, the Attestation Enable option is enabled.
BIOS setup 131
Table 12. System setup options—Security menu (continued)
Security
Key Storage Enable Enables to control whether the Trusted Platform Module (TPM) Storage
Hierarchy is available to the operating system.
By default, the Key Storage Enable option is enabled.
SHA-256 BIOS and the TPM will use the SHA-256 hash algorithm to extend
measurements into the TPM PCRs during BIOS boot.
By default, the SHA-256 option is enabled.
Clear Enables to clear the TPM owner information and returns the TPM to the
default state.
By default, the Clear option is disabled.
PPI ByPass for Clear Commands Controls the TPM Physical Presence Interface (PPI).
By default, the PPI ByPass for clear Commands option is disabled.
Intel Total Memory Encryption
Total Memory Encryption Enable or disable you to protect memory from physical attacks including freeze
spray, probing DDR to read the cycles, and others.
By default, the Total Memory Encryption option is disabled.
Chassis intrusion Controls the chassis intrusion feature.
By default, the On-Silent option is enabled.
SMM Security Mitigation Enable or disable SMM Security Mitigation.
By default, the option is enabled.
Data Wipe on Next Boot
Start Data Wipe Enable or disable the data wipe on next boot.
By default, the option is enabled.
Absolute Enable or disable or permanently disable the BIOS module interface of the
optional Absolute Persistence Module service from Absolute software.
By default, the option is enabled.
UEFI Boot Path Security Controls whether or not the computer will prompt the user to enter the admin
password (if set) when booting to a UEFI boot device from the F12 boot menu.
By default, the Always Except Internal HDD option is enabled.
Table 13. System setup options—Passwords menu
Passwords
Admin Password Set, change, or delete the administrator password.
System Password Set, change, or delete the computer password.
NVMe SSD0 Set, change, or delete the NVMe SSD0 password.
Password Configuration
Upper Case Letter Reinforces password must have at least one upper case letter.
By default, the option is disabled.
Lower Case Letter Reinforces password must have at least one lower case letter.
By default, the option is disabled.
Digit Reinforces password must have at least one digit.
By default, the option is disabled.
132 BIOS setup
Table 13. System setup options—Passwords menu (continued)
Passwords
Special Character Reinforces password must have at least one special character.
By default, the option is disabled.
Minimum Characters Set the minimum characters allowed for password.
Password Bypass When enabled, this always prompts for computer and internal hard drive
passwords when powered on from the off state.
By default, the Disabled option is enabled.
Password Changes
Enable Non-Admin Password Changes Enable or disable to change computer and hard drive password without the
need for admin password.
By default, the option is enabled.
Admin Setup Lockout
Enable Admin Setup Lockout Enables administrators control over how their users can or cannot access BIOS
setup.
By default, the option is disabled.
Master Password Lockout
Enable Master Password Lockout When enabled, this will disable the master password support.
By default, the option is disabled.
Allow Non-Admin PSID Revert
Enable Allow Non-Admin PSID Revert Controls access to the Physical Security ID (PSID) revert of NVMe hard-drives
from the Dell Security Manager prompt.
By default, the option is disabled.
Table 14. System setup options—Update, Recovery menu
Update, Recovery
UEFI Capsule Firmware Updates Enable or disable BIOS updates through UEFI capsule update packages.
By default, the option is enabled.
BIOS Recovery from Hard Drive Enables the user to recover from certain corrupted BIOS conditions from a
recovery file on the user primary hard drive or an external USB key.
By default, the option is enabled.
BIOS Downgrade
Allow BIOS Downgrade Enable or disable the flashing of the computer firmware to previous revision is
blocked.
By default, the option is enabled.
SupportAssist OS Recovery Enable or disable the boot flow for SupportAssist OS Recovery tool in the
event of certain computer errors.
By default, the option is enabled.
BISOConnect Enable or disable cloud Service OS recovery if the main operating system fails
to boot with the number of failures equal to or greater than the value specified
by the Auto OS Recovery Threshold setup option and local Service OS does not
boot or is not installed.
By default, the option is enabled.
BIOS setup 133
Table 14. System setup options—Update, Recovery menu (continued)
Update, Recovery
Dell Auto OS Recovery Threshold Controls the automatic boot flow for SupportAssist System Resolution Console
and for Dell OS Recovery Tool.
By default, the threshold value is set to 2.
Table 15. System setup options—System Management menu
System Management
Service Tag Display the Service Tag of the computer.
Asset Tag Create a computer Asset Tag.
AC Behavior
Wake on AC Enable or disable the wake on AC option.
By default, the option is disabled.
Wake on LAN
Wake on LAN Enable or disable the computer to power on by special LAN signals when it
receives a wakeup signal from the WLAN.
By default, the Disabled option is selected.
Auto on Time Enable to set the computer to turn on automatically every day or on a
preselected date and time. This option can be configured only if the Auto On
Time is set to Everyday, Weekdays, or Selected Days.
By default, the option is disabled.
Intel AMT Capability Enable Intel Active Management Technology
MEBx Hotkey Allows the user to use Ctrl+P hotkey to access MEBx
USB Provision When enabled, Intel AMT can be provisioned using the local provisioning file
through a USB storage device
Table 16. System setup options—Keyboard menu
Keyboard
Numlock Enable Enable or disable the Numlock function when the computer boots.
By default, the option is enabled.
Fn Lock Options By default, the Fn lock option is enabled.
Keyboard Illumination Enables to change the keyboard illumination settings.
By default, the Bright option is enabled.
Keyboard Backlight Timeout on AC Set the timeout value for the keyboard backlight when an AC adapter is
connected to the computer.
By default, the 10 seconds option is enabled.
Keyboard Backlight Timeout on
Battery
Set the timeout value for the keyboard backlight when the is running only on
battery power.
By default, the 10 seconds option is enabled.
Device Configuration Hotkey Access Manages whether you can access device configuration screens through
hotkeys during computer startup.
By default, the option is enabled.
134 BIOS setup
Table 17. System setup options—Pre-boot Behavior menu
Pre-boot Behavior
Adapter Warnings
Enable Adapter Warnings Enable or disable the warning messages during boot when the adapters with
less power capacity are detected.
By default, the option is enabled.
Warning and Errors Enable or disable the action to be done when a warning or error is encountered.
By default, the Prompt on Warnings and Errors option is enabled.
Fastboot Enable to set the speed of the boot process.
By default, the Minimal option is enabled.
Extend BIOS POST Time Set the BIOS POST time.
By default, the 0 seconds option is enabled.
MAC Address Pass-Through Replaces the external NIC MAC address with the selected MAC address from
the computer.
By default, the System Unique MAC Address option is enabled.
Table 18. System setup options—Performance menu
Performance
Multi Core Support
Active Cores Enables to change the number of CPU cores available to the operating system.
By default, the All Cores options is enabled.
Intel SpeedStep
Enable Intel SpeedStep Technology Enables the computer to dynamically adjust processor voltage and core
frequency, decreasing average power consumption and heat production.
By default, the option is enabled.
C-States Control
Enable C-State Control Enable or disable additional processor sleep states.
By default, the option is enabled.
Intel TurbocBoost Technology
Enable Intel Turbo Boost Technology Enable or disable Intel TurboBoost mode of the processor.
By default, the option is enabled.
Intel Hyper-Threading Technology
Enable Intel Hyper-Threading Technology Enable or disable Hyper-Threading in the processor.
By default, the option is enabled.
Dynamic Tuning:Machine Learning
Enable Dynamic Tuning:Machine Learning Enables the operating system capability to enhance dynamic power tuning
capabilities based on detected workloads.
By default, the option is disabled.
Table 19. System setup options—System Logs menu
System Logs
BIOS Event Log
Clear Bios Event Log Display BIOS events.
BIOS setup 135
Table 19. System setup options—System Logs menu (continued)
System Logs
By default, the Keep option is enabled.
Thermal Event Log
Clear Thermal Event Log Display Thermal events.
By default, the Keep option is enabled.
Power Event Log
Clear Power Event Log Display power events.
By default, the Keep option is enabled.
License Information Displays the license information of the computer.
Updating the BIOS
Updating the BIOS in Windows
About this task
CAUTION: If BitLocker is not suspended before updating the BIOS, the next time you reboot the system it
will not recognize the BitLocker key. You will then be prompted to enter the recovery key to progress and the
system will ask for this on each reboot. If the recovery key is not known this can result in data loss or an
unnecessary operating system re-install. For more information on this subject, search in the Knowledge Base
Resource at www.dell.com/support.
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, search in the Knowledge Base Resource at www.dell.com/support.
Updating the BIOS in Linux and Ubuntu
To update the system BIOS on a computer that is installed with Linux or Ubuntu, see the knowledge base article 000131486 at
www.dell.com/support.
Updating the BIOS using the USB drive in Windows
About this task
CAUTION: If BitLocker is not suspended before updating the BIOS, the next time you reboot the system it
will not recognize the BitLocker key. You will then be prompted to enter the recovery key to progress and the
136 BIOS setup
system will ask for this on each reboot. If the recovery key is not known this can result in data loss or an
unnecessary operating system re-install. For more information on this subject, search in the Knowledge Base
Resource at www.dell.com/support.
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, search in the Knowledge Base Resource 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.
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
CAUTION: If BitLocker is not suspended before updating the BIOS, the next time you reboot the system it
will not recognize the BitLocker key. You will then be prompted to enter the recovery key to progress and the
system will ask for this on each reboot. If the recovery key is not known this can result in data loss or an
unnecessary operating system re-install. For more information on this subject, search in the Knowledge Base
Resource at www.dell.com/support.
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.
BIOS setup 137
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.
System and setup password
Table 20. System and setup password
Password type Description
System password Password that you must enter to log in 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 that is stored on your computer if it is not locked and left unattended.
NOTE: System and setup password feature is disabled.
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 F12 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 Enter the new password field.
Use the following guidelines to assign the system password:
●A password can have up to 32 characters.
●At least one special character: ! " # $ % & ' ( ) * + , - . / : ; < = > ? @ [ \ ] ^ _ ` { | }
●Numbers 0 through 9.
●Upper case letters from A to Z.
●Lower case letters from a to z.
3. Type the system password that you entered earlier in the Confirm new password field and click OK.
4. Press Esc and save the changes as prompted by the pop-up message.
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/or Setup password. You cannot delete or change an existing System or Setup password, if the Password Status is
Locked.
138 BIOS setup
About this task
To enter the System Setup, press F12 immediately after a power-on or reboot.
Steps
1. In the System BIOS or System Setup screen, select System Security and press Enter.
The System Security screen is displayed.
2. In the System Security screen, verify that Password Status is Unlocked.
3. Select System Password, update, or delete the existing system password, and press Enter or Tab.
4. Select Setup Password, update, or delete the existing setup password, and press Enter or Tab.
NOTE: If you change the System and/or Setup password, reenter the new password when prompted. If you delete the
System and/or Setup 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.
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.
BIOS setup 139
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, search Dell Laptop Battery in the Knowledge Base Resource at www.dell.com/support.
Dell SupportAssist Pre-boot System Performance
Check diagnostics
About this task
SupportAssist diagnostics (also known as system diagnostics) performs a complete check of your hardware. The Dell
SupportAssist Pre-boot System Performance Check 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 automatically or in an interactive mode
●Repeat tests
●Display or save test results
5
140 Troubleshooting
●Run thorough tests to introduce additional test options to provide extra information about the failed device(s)
●View status messages that inform you if tests are completed successfully
●View error messages that inform you of problems encountered during testing
NOTE: Some tests for specific devices require user interaction. Always ensure that you are present at the computer
terminal when the diagnostic tests are performed.
For more information, see https://www.dell.com/support/kbdoc/000180971.
Running the SupportAssist Pre-Boot System Performance Check
Steps
1. Turn on your computer.
2. As the computer boots, press the F12 key as the Dell logo appears.
3. On the boot menu screen, select the Diagnostics option.
4. Click the arrow at the bottom left corner.
Diagnostics front page is displayed.
5. Click the arrow in the lower-right corner to go to the page listing.
The items detected are listed.
6. To run a diagnostic test on a specific device, press Esc and click Yes to stop the diagnostic test.
7. Select the device from the left pane and click Run Tests.
8. If there are any issues, error codes are displayed.
Note the error code and validation number and contact Dell.
Built-in self-test (BIST)
M-BIST
M-BIST (Built In Self-Test) is the system board's built-in self-test diagnostics tool that improves the diagnostics accuracy of
system board embedded controller (EC) failures.
NOTE: M-BIST can be manually initiated before POST (Power On Self Test).
How to run M-BIST
NOTE: M-BIST must be initiated on the system from a power-off state either connected to AC power or with battery only.
1. Press and hold both the M key on the keyboard and the power button to initiate M-BIST.
2. With both the M key and the power button held down, the battery indicator LED may exhibit two states:
a. OFF: No fault detected with the system board
b. AMBER: Indicates a problem with the system board
3. If there is a failure with the system board, the battery status LED will flash one of the following error codes for 30 seconds:
Table 21. LED error codes
Blinking Pattern Possible Problem
Amber White
2 1 CPU Failure
2 8 LCD Power Rail Failure
1 1 TPM Detection Failure
2 4 Unrecoverable SPI Failure
4. If there is no failure with the system board, the LCD will cycle through the solid color screens described in the LCD-BIST
section for 30 seconds and then power off.
Troubleshooting 141
LCD Power rail test (L-BIST)
L-BIST is an enhancement to the single LED error code diagnostics and is automatically initiated during POST. L-BIST will check
the LCD power rail. If there is no power being supplied to the LCD (i.e., the L-BIST circuit fails), the battery status LED will flash
either an error code [2,8] or an error code [2,7].
NOTE: If L-BIST fails, LCD-BIST cannot function as no power will be supplied to the LCD.
How to invoke L-BIST Test:
1. Press the power button to start the system.
2. If the system does not start up normally, look at the battery status LED:
●If the battery status LED flashes an error code [2,7], the display cable may not be connected properly.
●If the battery status LED flashes an error code [2,8], there is a failure on the LCD power rail of the system board, hence
there is no power supplied to the LCD.
3. For cases, when a [2,7] error code is shown, check to see if the display cable is properly connected.
4. For cases when a [2,8] error code is shown, replace the system board.
LCD Built-in Self Test (BIST)
Dell laptops have a built-in diagnostic tool that helps you determine if the screen abnormality you are experiencing is an inherent
problem with the LCD (screen) of the Dell laptop or with the video card (GPU) and PC settings.
When you notice screen abnormalities like flickering, distortion, clarity issues, fuzzy or blurry image, horizontal or vertical lines,
color fade etc., it is always a good practice to isolate the LCD (screen) by running the Built-In Self Test (BIST).
How to invoke LCD BIST Test
1. Power off the Dell laptop.
2. Disconnect any peripherals that are connected to the laptop. Connect only the AC adapter (charger) to the laptop.
3. Ensure that the LCD (screen) is clean (no dust particles on the surface of the screen).
4. Press and hold D key and Power on the laptop to enter LCD built-in self test (BIST) mode. Continue to hold the D key, until
the system boots up.
5. The screen will display solid colors and change colors on the entire screen to white, black, red, green, and blue twice.
6. Then it will display the colors white, black and red.
7. Carefully inspect the screen for abnormalities (any lines, fuzzy color or distortion on the screen).
8. At the end of the last solid color (red), the system will shut down.
NOTE: Dell SupportAssist Pre-boot diagnostics upon launch, initiates an LCD BIST first, expecting a user intervention
confirm functionality of the LCD.
System-diagnostic lights
This section lists the system-diagnostic lights of your Latitude 5531.
Table 22. System-diagnostic lights
Blinking pattern
Problem description Suggested resolutionAmber White
1 1 TPM detection failure Replace the system board.
1 2 Unrecoverable SPI Flash
Failure Replace the system board.
1 5 EC unable to program i-Fuse Replace the system board.
142 Troubleshooting
Table 22. System-diagnostic lights (continued)
Blinking pattern
Problem description Suggested resolutionAmber White
1 6 Generic catch-all for
ungraceful EC code flow
errors
Disconnect all power source
(AC, battery, coin cell) and
drain flea power by pressing
and holding down power
button for 3~5 seconds.
2 1 CPU failure ●Run the Dell Support
Assist/Dell Diagnostics
tool.
●If problem persists,
replace the system board.
2 2 System board failure (included
BIOS corruption or ROM
error)
●Flash latest BIOS version
●If problem persists,
replace the system board.
2 3 No memory/RAM detected ●Confirm that the memory
module is installed
properly.
●If problem persists,
replace the memory
module.
2 4 Memory/RAM failure ●Reset and swap memory
modules among the slots.
●If problem persists,
replace the memory
module.
2 5 Invalid memory installed ●Reset and swap memory
modules among the slots.
●If problem persists,
replace the memory
module.
2 6 System board/Chipset Error Replace the system board.
2 7 LCD failure (SBIOS message) Replace the LCD module.
2 8 LCD failure (EC detection of
power rail failure) Replace the system board.
3 1 CMOS battery failure ●Reset the main battery
connection.
●If problem persists,
replace the main battery.
3 2 PCI or Video card/chip failure Replace the system board.
3 3 BIOS Recovery image not
found
●Flash latest BIOS version
●If problem persists,
replace the system board.
3 4 BIOS Recovery image found
but invalid
●Flash latest BIOS version
●If problem persists,
replace the system board.
3 5 Power rail failure Replace the system board.
3 6 Flash corruption detected by
SBIOS.
●Press power button for
over 25 seconds to do
Troubleshooting 143
Table 22. System-diagnostic lights (continued)
Blinking pattern
Problem description Suggested resolutionAmber White
RTC reset. If problem
persists, replace the
system board.
●Disconnect all power
source (AC, battery, coin
cell) and drain flea power
by pressing and holding
down power button 3~5
seconds to ensure all
power are drained.
●Run "BIOS recovery from
USB", and the instructions
are in the website Dell
support.
●If problem persists,
replace the system board.
3 7 Timeout waiting on ME to
reply to HECI message. Replace the system board.
NOTE: Blinking 3-3-3 LEDs on Lock LED (Caps-Lock or Nums-Lock), Power button LED (without Fingerprint reader), and
Diagnostic LED indicates failure to provide input during LCD panel test on Dell SupportAssist Pre-boot System Performance
Check diagnostics.
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.
Real-Time Clock (RTC Reset)
The Real Time Clock (RTC) reset function allows you or the service technician to recover Dell systems from No POST/No
Power/No Boot situations. The legacy jumper enabled RTC reset has been retired on these models.
Start the RTC reset with the system powered off and connected to AC power. Press and hold the power button for
thirty (30) seconds
. The system RTC Reset occurs after you release the power button.
NOTE: If AC power is removed from the system during the process or the power button is held less than 25 seconds or
longer than 40 seconds, the RTC Reset process will not run.
The RTC reset will reset the BIOS to default options, un-provision Intel vPro, and reset the computer date and time. (The IT
administrator's vPro account and password on the computer will be un-provisioned. The computer will need to go through the
setup and configuration process again to reconnect it to the vPro server).
The following items are unaffected by the RTC reset:
144 Troubleshooting
●If TPM is on and Enabled, it is not affected by RTC Reset (Remains on and Enabled)
●Asset Tag
●Service Tag
●Ownership Tag
●Admin Password
●System Password
●HDD Password
●Key Databases
●System Logs
These items may or may not reset based on your custom BIOS setting selections:
●Boot List
●Secure Boot Enable - Allow BIOS Downgrade
●Enable Legacy Option ROMs
Auto RTC reset
The auto RTC reset feature automates the manual process of the RTC recovery function from a No Power or No POST failures.
When two instances of No Power, No POST issues are detected, the computer automatically attempts an RTC Reset.
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.
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.
Troubleshooting 145
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, search in the Knowledge Base Resource at www.dell.com/
support.
146 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 23. 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
www.dell.com/support/linux
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.
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