Dell Latitude 9430 2-in-1 Service Manual
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Dell Latitude 9430 2-in-1 Service Manual

Dell Latitude 9430 2-in-1 Service Manual

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Latitude 9430/Latitude 9430 2-in-1
Service Manual
Regulatory Model: P141G/P142G
Regulatory Type: P141G002/P142G002
December 2022
Rev. A01

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Summary of Contents for Dell Latitude 9430 2-in-1

  • Page 1 Latitude 9430/Latitude 9430 2-in-1 Service Manual Regulatory Model: P141G/P142G Regulatory Type: P141G002/P142G002 December 2022 Rev. A01...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2022 Dell Inc. or its subsidiaries. All rights reserved. Dell Technologies, Dell, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.

  • Page 3: Table Of Contents

    Contents Chapter 1: Working inside your computer..................6 Safety instructions................................6 Before working inside your computer........................6 Safety precautions.................................7 Electrostatic discharge—ESD protection........................7 ESD field service kit ..............................8 Transporting sensitive components.......................... 9 After working inside your computer..........................9 Chapter 2: Removing and installing components................10 Recommended tools................................10 Screw list.....................................
  • Page 4 Deleting or changing an existing system setup password.................86 Clearing BIOS (System Setup) and System passwords...................87 Clearing Chassis Intrusion Alert............................. 87 Chapter 5: Keyboard shortcuts....................90 Chapter 6: Troubleshooting......................92 Handling swollen Lithium-ion batteries........................92 Dell SupportAssist Pre-boot System Performance Check diagnostics..............92 Running the SupportAssist Pre-Boot System Performance Check..............93 Contents...
  • Page 5 LCD Built-in Self Test (BIST)........................... 94 System diagnostic lights..............................94 Recovering the operating system..........................96 Backup media and recovery options..........................96 WiFi power cycle................................96 Drain residual flea power (perform hard reset)......................96 Chapter 7: Getting help and contacting Dell................98 Contents...

  • Page 6: Chapter 1: Working Inside Your Computer

    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.

  • Page 7: Safety Precautions

    Ensure that your computer is shut down and the AC adapter is disconnected. a. Hold <B> key on the keyboard and press the power button for 3 seconds or until the Dell logo appears on the screen. b. Press any key to continue.

  • Page 8: Esd Field Service Kit

    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.

  • Page 9: Transporting Sensitive Components

    Transporting sensitive components When transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place these parts in anti-static bags for safe transport.

  • Page 10: Chapter 2: Removing And Installing Components

    Removing and installing components NOTE: The images in this document may differ from your computer depending on the configuration you ordered. Recommended tools The procedures in this document may require the following tools: ● Phillips screwdriver #0 ● Phillips screwdriver #1 ●...

  • Page 11: Major Components Of Latitude 9430

    Table 1. Screw list (continued) Component Screw type Quantity Image Right speaker M1.6x1.8 WLAN antenna module M1.6x1.8 M1.6x3 I/O daughter board M2x4 Power button with fingerprint M1.6x2 reader assembly System board M1.6x2.5 M2x4 Captive screw USH daughter board M1.2x2.5 WWAN main antenna module M1.6x3 Major components of Latitude 9430 The following image shows the major components of Latitude 9430.
  • Page 12 Removing and installing components...

  • Page 13: Secure Digital (Sd) Card

    19. System fan 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.

  • Page 14: Installing The Sd Card

    Steps 1. Push the SD card to eject it from the slot. 2. Remove the SD card from the system. Installing the SD card Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image provides a visual representation of the SD card installation procedure.

  • Page 15: Sim Card Tray

    Steps Insert the SD card into its slot until it click into place. Next steps 1. Follow the procedure in After working inside your computer. NOTE: Ensure that your computer is in Service Mode. For more information see, step 6 in Before working inside your computer.

  • Page 16: Installing The Sim Card Tray

    Steps 1. Insert the SIM card removal pin into the release hole to release the SIM card tray. 2. Push the pin to disengage the lock, and eject the SIM card tray. 3. Slide the SIM card tray out of the slot on the system. 4.
  • Page 17 About this task The following image provides a visual representation of the SIM card tray installation procedure. Steps 1. Insert the SIM card removal pin into the release hole to remove the SIM card tray. 2. Push the pin to disengage the lock, and eject the SIM card tray. 3.

  • Page 18: Base Cover

    NOTE: Ensure that your computer is in Service Mode. For more information see, step 6 in Before working inside your computer. Base cover Removing the base cover Prerequisites 1. Follow the procedure in Before working inside your computer. NOTE: Ensure that your computer is in Service Mode. For more information see, step 6 in Before working inside your computer.

  • Page 19: Installing The Base Cover

    Steps 1. Loosen the eight captive screws that secure the base cover to the system. 2. Using a plastic scribe, pry open the base cover starting from the recesses that are located in the U-shaped indents near the hinges at the top edge of the base cover. NOTE: Do not lift the base cover from the top side immediately after prying it from the recesses, as this will cause damage to the base cover.
  • Page 20 Removing and installing components...

  • Page 21: Solid-State Drive

    Steps 1. Align and place the base cover on the palm-rest assembly, and snap the base cover into place. 2. Tighten the eight captive screws to secure the base cover to the system. Next steps 1. Install the SIM card tray.
  • Page 22 About this task The following images indicate the location of the solid-state drive and provide a visual representation of the removal procedure. Steps 1. Using a plastic scribe pry open the solid-state drive shielding cover from the recess at the bottom edge of the solid-state drive shielding cover.

  • Page 23: Installing The Solid-State Drive

    Installing the solid-state drive 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 solid-state drive and provides a visual representation of the installation procedure.

  • Page 24: Wireless Wide Area Network (Wwan) Card

    Wireless Wide Area Network (WWAN) Card Removing the WWAN card Prerequisites 1. Follow the procedure in Before working inside your computer. NOTE: Ensure that your computer is in Service Mode. For more information see, step 6 in Before working inside your computer.
  • Page 25 Steps 1. Loosen the single captive (M2x3) screw securing the WWAN-card bracket to the system board. 2. Lift the WWAN-card bracket out of the system. 3. Disconnect the antenna cables from the connectors on the WWAN card. 4. Using a plastic scribe pry open the WWAN card shielding cover from the bottom edge of the WWAN card shielding cover. 5.

  • Page 26: Installing The Wwan Card

    NOTE: If any of the two thermal pads located underneath the WWAN card gets detached, adhere it back to the system board. Installing the WWAN card 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 WWAN card and provides a visual representation of the installation procedure.
  • Page 27 5. Align and place the WWAN-card bracket on the system board and WWAN card, and tighten the single captive (M2x3) screw. 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. Removing and installing components...

  • Page 28: System Fan

    Next steps 1. Install the base cover. 2. Install the SIM card tray. 3. Install the card. 4. Follow the procedure in After working inside your computer. System fan Removing the system fan Prerequisites 1. Follow the procedure in Before working inside your computer.

  • Page 29: Installing The System Fan

    3. Lift the system fan off the palm-rest assembly. Installing the system fan 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 system fan and provides a visual representation of the installation procedure. Steps 1.

  • Page 30: Heat Sink

    Heat sink Removing the heat sink Prerequisites 1. Follow the procedure in Before working inside your computer. NOTE: Ensure that your computer is in Service Mode. For more information see, step 6 in Before working inside your computer. 2. Remove the card.

  • Page 31: Installing The Heat Sink

    Steps 1. Remove the heat shield cover. 2. Peel off the heat absorber for the DDR5 onboard memory from the heat-sink. 3. Loosen the three captive screws that secure the heat sink to the system board. 4. Lift the heat sink off the system board. Installing the heat sink Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
  • Page 32 About this task The following image indicates the location of the heat sink and provides a visual representation of the installation procedure. Removing and installing components...

  • Page 33: Display Assembly

    Steps 1. Align the screw holes on the heat sink with the screw holes on the system board. 2. Tighten the three captive screws that secure the heat sink to the system board. 3. Adhere the heat absorber for the DDR5 onboard memory on the heat-sink. 4.
  • Page 34 Removing and installing components...
  • Page 35 Steps 1. Disconnect the display cable from the connector on the system board. CAUTION: The connector for the display cable features a latch that locks it in place on the system board. Flip open the display cable latch from the two tabs on the top side of the latch. After flipping open the latch, Removing and installing components...

  • Page 36: Installing The Display Assembly

    hold the left and right sides of the cable's connector head and gently disconnect the display cable from the system board in a direct upward motion to prevent damage to the connector's pins. 2. Disconnect the camera cable from the connector on the system board and unroute the camera and display cables from the routing guides on the system board.
  • Page 37 NOTE: The display assembly installation procedure is the same for both laptop and 2-in-1 chassis. About this task The following image indicates the location of the display assembly and provides a visual representation of the installation procedure. Removing and installing components...

  • Page 38: Battery

    Steps 1. Align and place the palm-rest assembly under the hinges of the display assembly. 2. Replace the six (M2.5x3) screws that secure the display assembly to the system. 3. Connect the display and camera cable to the connectors on the system board. Next steps 1.

  • Page 39: Removing The Battery

    ● 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.
  • Page 40 Steps 1. Peel off the two pieces of tape securing the gray WWAN antenna cable in place at the bottom side of CPU shielding cover and unroute the wireless antenna cables from the routing guides on the system board and the routing guides along the top side of the battery.

  • Page 41: Installing The Battery

    NOTE: The cables for the WLAN antennas are routed over the plastic bracket at the upper right corner and within the routing guides along the bottom right side of the battery. You must be careful when unrouting the antenna cables from their routing guides while they are still attached to the wireless card.
  • Page 42 Steps 1. Align and place the battery on the palm-rest assembly. 2. Replace the single (M1.6x3) screw and four (M2x4) screws to secure the battery to the palm-rest assembly. 3. Reconnect the battery cable to the connector on the system board. 4.

  • Page 43: Speakers

    4. Install the card. 5. Follow the procedure in After working inside your computer. Speakers Removing the left speaker Prerequisites 1. Follow the procedure in Before working inside your computer. NOTE: Ensure that your computer is in Service Mode. For more information see, step 6 in Before working inside your computer.

  • Page 44: Installing The Left Speaker

    Installing the left speaker 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. Steps 1.

  • Page 45: Installing The Right Speaker

    NOTE: Ensure that your computer is in Service Mode. For more information see, step 6 in Before working inside your computer. 2. Remove the card. 3. Remove the SIM card tray. 4. Remove the base cover. 5. Remove the WWAN card.

  • Page 46: Wireless Local Area Network (Wlan) Antenna Module

    Steps 1. Align and place the right speaker in the slot on the system. 2. Replace the single (M1.6x1.8) screw that secures the right speaker to the system. Next steps 1. Install the battery. 2. Install the WWAN card. 3. Install the base cover.
  • Page 47 5. Remove the WWAN card. 6. Remove the battery. About this task The following images indicate the location of the WLAN antenna module and provide a visual representation of the removal procedure. Steps 1. Remove the single (M1.6x1.8) screw securing the Proximity sensor bracket to the plam-rest assembly and lift the Proximity sensor bracket off the system.

  • Page 48: Installing The Wlan Antenna Module

    4. Remove the two (M1.6x3) screws that WLAN antenna module to the palm-rest assembly, and lift the WLAN antenna module off the system. Installing the WLAN antenna module 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 WLAN antenna module and provides a visual representation of the installation procedure.

  • Page 49: I/O Daughter Board

    Steps 1. Align and place the WLAN antenna module in the slot on the system. 2. Replace the two (M1.6x3) screws that secure the WLAN antenna module to the palm-rest assembly. 3. Connect the WLAN antenna module's Proximity sensor cable to the RF board and route the Proximity sensor cable in the routing guides.

  • Page 50: Installing The I/O Daughter Board

    Steps 1. Disconnect the I/O daughter FPC cable from the connector on the system board. 2. Remove the single (M2x4) screw securing the I/O daughter board bracket to the palm-rest assembly. 3. Lift the I/O daughter board bracket off the system. 4.
  • Page 51 About this task The following image indicates the location of the I/O daughter board and provides a visual representation of the installation procedure. Steps 1. Connect the I/O daughter board FPC cable to the I/O daughter board. 2. Place the I/O daughter board with the FPC cable in the slot on the system. 3.

  • Page 52: Power Button With Fingerprint Reader Assembly

    2. Install the heat sink. 3. Install the base cover. 4. Install the SIM card tray. 5. Install the card. 6. Follow the procedure in After working inside your computer. Power button with fingerprint reader assembly Removing the power button with fingerprint reader assembly Prerequisites NOTE: For system shipped with power button with fingerprint reader assembly only.

  • Page 53: Installing The Power Button With Fingerprint Reader Assembly

    2. Remove the three (M1.6x2) screws securing the power button with fingerprint reader bracket to the palm-rest assembly. 3. Lift the power button with fingerprint reader bracket off the system. 4. Peel off the power button with fingerprint reader assembly from the palm-rest assembly and lift the power button with fingerprint reader assembly off the system.

  • Page 54: System Board

    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. NOTE: Ensure that your computer is in Service Mode. For more information see, step 6 in Before working inside your computer.
  • Page 55 14. System fan cable connector The following images indicate the location of the system board assembly and provide a visual representation of the removal procedure. Removing and installing components...
  • Page 56 NOTE: Do not remove the system board together with the heat-sink, as this may damage the I/O daughter board, I/O daughter board FPC, and system board. The system features an I/O daughter board FPC which is connected to the system board underneath the heat-sink, as a result, the heat-sink must be removed first in order to disconnect the I/O daughter board FPC from the system board and then remove the system board.
  • Page 57 NOTE: Flip open the display cable latch from the two tabs on the top side of the latch. Hold the left and right sides of the cable's connector head and gently disconnect the display cable in a direct upward motion to prevent damage to the connector.
  • Page 58 13. Unroute the white/gray WWAN main antenna cable and black/gray WWAN antenna cable from the metal clips on the system board. 14. Remove the three (M2x4) screws that secures the USB Type-C bracket to the system board. 15. Remove the four (M1.6x2.5) screws that secure the system board to the palm-rest assembly. CAUTION: Do not remove the screw which is used to secure the base cover hook in place.

  • Page 59: Installing The System Board

    16. Hold the left side of the system board and partially lift the system board from the system. CAUTION: To prevent obstructions while lifting the system board, you should clear the area around the system board of cables, FFCs, FPCs, and any adhesive items. NOTE: For WWAN configurations, after removing the defective system board from the system, install the old shielding cover back to the defective system board.
  • Page 60 Removing and installing components...
  • Page 61 NOTE: For WWAN configurations, transfer the SIM card tray when replacing the system board. Removing and installing components...
  • Page 62 NOTE: Replacement system boards are pre-attached with four thermal pads on the underside of the heatsink shielding cover. Before installing the cover back to the system board, make sure the four thermal pads are attached to the correct locations. Steps 1.

  • Page 63: Ush Daughter Board

    9. Connect the LED board FPC cable to the connector on the system board. 10. Connect the touchpad FPC cable to the connector on the system board. 11. Connect the Proximity sensor RF board FPC cable to the connector on the system board. 12.
  • Page 64 Steps 1. Gently disconnect the power button with fingerprint reader FPC cable from the connector on the USH daughter board. 2. Peel off the USH daughter board FPC cable from the keyboard. 3. Remove the two (M1.2x2.5) screws securing the USH daughter board to the palm-rest assembly. NOTE: Do Not remove the screw which is used to secure the keyboard bracket in place.

  • Page 65: Installing The Ush Daughter Board

    Installing the USH daughter board 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 USH daughter board and provides a visual representation of the installation procedure.

  • Page 66: Wireless Wide Area Network (Wwan) Antenna Module

    Wireless Wide Area Network (WWAN) Antenna module Removing the WWAN main antenna module Prerequisites 1. Follow the procedure in Before working inside your computer. NOTE: Ensure that your computer is in Service Mode. For more information see, step 6 in Before working inside your computer.

  • Page 67: Installing The Wwan Main Antenna Module

    Steps 1. Remove the four (M1.6x3) screws securing the WWAN main antenna module to the palm-rest assembly. 2. Lift the WWAN main antenna module off the system. Installing the WWAN main antenna module 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 WWAN main antenna module and provides a visual representation of the installation procedure.

  • Page 68: Palm-Rest Assembly

    7. Install the WWAN card. 8. Install the base cover. 9. Install the SIM card tray. 10. Install the card. 11. Follow the procedure in After working inside your computer. Palm-rest assembly Removing the palm-rest assembly Prerequisites 1. Follow the procedure in Before working inside your computer.

  • Page 69: Installing 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 images indicate the location of the palm-rest assembly and provide a visual representation of the removal procedure.
  • Page 70 NOTE: When replacing the palm rest, relocate the WWAN main antenna/dummy antenna module to the replacement palm rest. Removing and installing components...
  • Page 71 1. WWAN main antenna 2. Dummy antenna module Steps Place the palm-rest assembly on a flat surface. Next steps 1. Install the WWAN main antenna module. 2. Install the USH daughter board. 3. Install the system board 4. Install the power button with fingerprint reader (for systems shipped with a fingerprint reader).

  • Page 72: Chapter 3: Drivers And Downloads

    Drivers and downloads When troubleshooting, downloading or installing drivers it is recommended that you read the Dell Knowledge Based article, Drivers and Downloads FAQ 000123347. Drivers and downloads...

  • Page 73: Chapter 4: Bios Setup

    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.

  • Page 74: One Time Boot Menu

    Table 2. Navigation keys (continued) Keys Navigation 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.
  • Page 75 Table 3. System setup options—System information menu (continued) Overview 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.
  • Page 76 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.
  • Page 77 Table 5. System setup options—Integrated Devices menu (continued) Integrated Devices Audio Enable or disable the usage of audio on Dell Dock external ports. By default, the Audio option is enabled. Enable or disable the usage of LAN on Dell Dock external ports.
  • Page 78 Table 7. System setup options—Display menu (continued) Display By default, the option is not enabled. Table 8. 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.
  • Page 79 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.
  • Page 80 Table 10. System setup options—Security menu (continued) Security 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.
  • Page 81 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 12. System setup options—Update, Recovery menu...
  • Page 82 Table 13. 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...
  • Page 83 Table 15. System setup options—Pre-boot Behavior menu (continued) Pre-boot Behavior 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.

  • Page 84: Updating The Bios

    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...

  • Page 85: Updating The Bios From The F12 One-Time Boot Menu

    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.

  • Page 86: System And Setup Password

    System and setup password Table 18. 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.

  • Page 87: Clearing Bios (System Setup) And System Passwords

    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.
  • Page 88 If Block Boot Until Cleared is set to OFF, select Continue to boot up normally or BIOS-Setup to clear the alert. NOTE: If Continue is selected, the user will continue to see the alert each time the system is powered on until the alert is cleared.
  • Page 89 BIOS setup...

  • Page 90: Chapter 5: Keyboard Shortcuts

    Keyboard shortcuts NOTE: Keyboard characters may differ depending on the keyboard language configuration. Keys used for shortcuts remain the same across all language configurations. Some keys on your keyboard have two symbols on them. These keys can be used to type alternate characters or to perform secondary functions.
  • Page 91 Table 19. List of keyboard shortcuts (continued) Function key Primary behavior Function key Secondary behavior Fn + F10 Operating system and Print Screen application specific F10 behavior Fn + F11 Operating system and Home application specific F11 behavior Fn + F12 Operating system and application specific F12 behavior...

  • Page 92: Chapter 6: Troubleshooting

    ● 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.

  • Page 93: Running The Supportassist Pre-Boot System Performance Check

    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.

  • Page 94: Lcd Power Rail Test (L-Bist)

    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.
  • Page 95 The following table shows different power and battery-status light patterns and associated problems. Blinking Pattern Problem description Suggested resolution TPM detection failure Replace the system board. Unrecoverable SPI flash failure Replace the system board. EC unable to program i-Fuse Replace the system board. Generic catch-all for ungraceful Disconnect all power source EC code flow errors...

  • Page 96: Recovering 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.
  • Page 97 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. Troubleshooting...

  • Page 98: Chapter 7: Getting Help And Contacting Dell

    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 22. Self-help resources Self-help resources Resource location Information about Dell products and services www.dell.com My Dell app...

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Latitude 9430P141gP142g

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