Dell Inspiron 15 3525 Service Manual
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Dell Inspiron 15 3525 Service Manual

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Inspiron 15 3525
Service Manual
Regulatory Model: P112F
Regulatory Type: P112F005/P112F006
February 2022
Rev. A00

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Summary of Contents for Dell Inspiron 15 3525

  • Page 1 Inspiron 15 3525 Service Manual Regulatory Model: P112F Regulatory Type: P112F005/P112F006 February 2022 Rev. A00...
  • Page 2 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.

  • Page 3: Table Of Contents

    After working inside your computer..........................9 BitLocker..................................9 Chapter 2: Removing and installing components................10 Recommended tools................................10 Screw list..................................... 10 Major components of Inspiron 15 3525......................... 11 Secure Digital (SD) Card..............................13 Removing the Secure Digital card..........................13 Installing the Secure Digital card..........................14 Base cover................................... 14 Removing the base cover............................14...
  • Page 4 Installing the speakers..............................35 Hard drive assembly................................. 36 Removing the hard drive ............................36 Installing the hard drive..............................37 I/O board.....................................39 Removing the Input/Output board......................... 39 Installing the Input/Output board........................... 39 I/O daughter board FFC..............................40 Removing the Input/Output daughter board FFC....................40 Installing the Input/Output daughter board FFC....................42 Heat sink....................................43 Removing the heat sink - UMA..........................
  • Page 5 Deleting or changing an existing system setup password.................90 Clearing BIOS (System Setup) and System passwords..................90 Chapter 5: Troubleshooting......................91 Handling swollen Lithium-ion batteries......................... 91 Dell SupportAssist Pre-boot System Performance Check diagnostics..............91 Running the SupportAssist Pre-Boot System Performance Check..............92 Built-in self-test (BIST)..............................92 M-BIST...................................92 LCD Power rail test (L-BIST)...........................

  • 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

    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.

  • Page 8: Esd Field Service Kit

    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.

  • 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. After working inside your computer About this task NOTE: Leaving stray or loose screws inside your computer may severely damage your computer.

  • 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 ● Plastic scribe Screw list NOTE: When removing screws from a component, it is recommended to note the screw type, the quantity of screws, and...

  • Page 11: Major Components Of Inspiron 15 3525

    M2x2 (O.D. 5 mm) USB type-C bracket M2x3.5 Touchpad M2x2 big head (O.D. 5 Touchpad bracket M2x2 big head (O.D. 5 Major components of Inspiron 15 3525 The following image shows the major components of Inspiron 15 3525. Removing and installing components...
  • Page 12 1. Base cover 2. Battery 3. Speakers 4. Power-button with optional fingerprint-reader Removing and installing components...

  • Page 13: Secure Digital (Sd) Card

    19. Hard drive 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 Secure Digital Card

    Installing the Secure Digital card Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task Steps Slide the secure digital into the slot until it clicks into place. Next steps 1. Follow the procedure in After working inside your computer.
  • Page 15 Removing and installing components...
  • Page 16 Steps 1. Remove the six screws (M2x5) that secure the base cover to the palm-rest and keyboard assembly. 2. Loosen the two captive screws that secure the base cover to the palm-rest and keyboard assembly. 3. Using a plastic scribe, pry open the base cover from the recesses located in the U-shaped indents at the top edge of the base cover near the hinges.

  • Page 17: Installing The Base Cover

    Installing the base cover Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the base cover and provide a visual representation of the installation procedure. Removing and installing components...

  • Page 18: Battery

    Steps 1. Connect the battery cable to the connector on the system board. 2. Place and snap the base cover into place on the palm-rest and keyboard assembly. 3. Tighten the two captive screws that secure the base cover to the palm-rest and keyboard assembly. 4.

  • Page 19: Removing The 3-Cell 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 20: Installing The 3-Cell Battery

    Installing the 3-cell battery Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following image indicates the location of the 3-cell battery and provides a visual representation of the installation procedure. Steps 1.
  • Page 21 About this task The following image indicates the location of the 4-cell battery and provides a visual representation of the removal procedure. Steps 1. Disconnect the battery cable from the system board, if applicable. 2. Remove the four (M2x3) screws that secure the battery to the palm-rest and keyboard assembly. 3.

  • Page 22: Installing The 4-Cell Battery

    Installing the 4-cell battery Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following image indicates the location of the 4-cell battery and provides a visual representation of the installation procedure. Steps 1.

  • Page 23: Connecting The Battery Cable

    Steps 1. Lift the latch on the battery cable. 2. Disconnect the battery cable from the connector on the battery. Connecting the battery cable Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the battery cable and provide a visual representation of the installation procedure.

  • Page 24: Memory Modules

    Steps 1. Connect the battery cable to the connector on the battery. 2. Close the latch on the battery cable connector to secure it to the battery. Next steps 1. Install the base cover. 2. Install the card. 3. Follow the procedure in After working inside your computer.

  • Page 25: Installing The Memory Modules

    Steps 1. Using your fingertips, carefully spread apart the securing-clips on each end of the memory-module slot until the memory module pops-up. 2. Remove the memory module from the memory-module slot on the system board. NOTE: Your computer may have up to two memory modules installed. Repeat steps 1 to 2 if there is a second memory. module installed.

  • Page 26: M.2 Solid-State Drive

    Steps 1. Align the notch on the memory module with the tab on the memory-module slot on the system board. 2. Slide the memory module into the memory-module slot on the system board. 3. Press down on the memory module until the securing clips click, locking the memory module in place. NOTE: Repeat steps 1 to 3 if there is a second memory module to be installed into your computer.

  • Page 27: Installing The M.2 2230 Solid State Drive

    The following images indicate the location of the M.2 2230 solid state drive and provide a visual representation of the removal procedure. Steps 1. Remove the (M2x2) screw that secures the M.2 thermal plate to the palm-rest and keyboard assembly. 2.

  • Page 28: Removing The M.2 2280 Solid State Drive

    Steps 1. Align the notch on the M.2 2230 solid state drive with the tab on the M.2 card slot on the system board. 2. Slide the M.2 2230 solid state drive into the M.2 card slot on the system board . 3.

  • Page 29: Installing The M.2 2280 Solid State Drive

    Steps 1. Remove the (M2x2) screw that secures the M.2 thermal plate to the palm-rest and keyboard assembly. 2. Slide and lift the solid state drive thermal plate off the solid state drive. 3. Slide and remove the M.2 2280 solid state drive from the M.2 card slot on the system board. Installing the M.2 2280 solid state drive Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 30: Wireless Card

    Steps 1. Align the notch on the M.2 2280 solid state drive with the tab on the M.2 card slot on the system board. 2. Slide the M.2 2280 solid state drive into the M.2 card slot on the system board. 3.

  • Page 31: Installing The Wireless Card

    Steps 1. Remove the screw (M2x3.5) that secures the wireless-card bracket to the system board. 2. Lift 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 WLAN slot on the system board. Installing the wireless card Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
  • Page 32 Steps 1. Connect the antenna cables to the wireless card. The following table provides the antenna-cable color scheme for the wireless card supported by your computer. Table 2. Antenna-cable color scheme Connectors on the Antenna-cable color Silkscreen marking wireless card △...

  • Page 33: Fan

    Removing the fan Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the card. 3. Remove the base cover. About this task The following images indicate the location of the fan and provide a visual representation of the removal procedure. Steps 1.

  • Page 34: Speakers

    Steps 1. Place the fan on the palm-rest and keyboard assembly. 2. Align the screw holes on the fan to the screw holes on the palm-rest and keyboard assembly. 3. Replace the two (M2x5) screws that secure the fan to the palm-rest and keyboard assembly. 4.

  • Page 35: Installing The Speakers

    Steps 1. Disconnect the speaker cable from the system board. 2. Unroute the speaker cable from the routing guides on the palm-rest and keyboard assembly. 3. Lift the speakers along with its cable from the palm-rest and keyboard assembly. Installing the speakers Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 36: Hard Drive Assembly

    Steps 1. Using the alignment posts, place the speakers on the palm-rest and keyboard assembly. NOTE: Ensure that the alignment posts are threaded through the rubber grommets on the speaker. 2. Route the speaker cable through the routing guides on the palm-rest and keyboard assembly. 3.

  • Page 37: Installing The Hard Drive

    Steps 1. Disconnect the hard drive cable from the system board. 2. Remove the four (M2x3.5) screws that secure the hard drive assembly to the palm-rest and keyboard assembly. 3. Lift the hard drive assembly and its cable from the palm-rest and keyboard assembly. 4.
  • Page 38 Steps 1. Place and slide the hard drive into the hard-drive bracket. 2. Align the screw holes on the hard drive bracket with the screw holes on the hard drive. 3. Replace the four (M3x3) screws that secure the hard drive to the hard drive bracket. 4.

  • Page 39: I/O Board

    I/O board Removing the Input/Output board Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the card. 3. Remove the base cover. About this task The following images indicate the location of the Input/Output board and provide a visual representation of the removal procedure.

  • Page 40: I/O Daughter Board Ffc

    About this task The following images indicate the location of the I/O board and provide a visual representation of the installation procedure. Steps 1. Place the I/O board on the palm-rest and keyboard assembly. 2. Align the screw holes on the I/O board to the screw holes on the palm-rest and keyboard assembly. 3.
  • Page 41 About this task The following image indicates the location of the Input/Output daughter board FFC and provides a visual representation of the removal procedure in an aluminum chassis. For systems shipped with a plastic chassis: Removing and installing components...

  • Page 42: Installing The Input/Output Daughter Board Ffc

    Steps 1. Open the latch and disconnect the I/O daughter board cable from the I/O board. 2. Open the latch and disconnect the I/O daughter board cable from the system board. 3. Lift the I/O daughter board cable off the palm-rest and keyboard assembly. NOTE: For systems shipped with a plastic chassis, slide the I/O daughter board cable underneath the wireless card antenna cables and lift off the palm-rest and keyboard assembly.

  • Page 43: Heat Sink

    Steps 1. Place the I/O daughter board FFC on the palm-rest and keyboard assembly. For systems shipped with a plastic chassis, slide and place the I/O daughter board FFC underneath the wireless card antenna cables on the palm-rest and keyboard assembly. 2.

  • Page 44: Installing The Heat Sink - Uma

    About this task NOTE: The heat sink may become hot during normal operation. Allow sufficient time for the heat sink to cool before you touch it. NOTE: For maximum cooling of the processor, do not touch the heat transfer areas on the heat sink. The oils in your skin can reduce the heat transfer capability of the thermal grease.

  • Page 45: Removing The Heat Sink - Discrete

    Steps 1. Place the heat sink on the system board. 2. Tighten the four captive screws that secure the heat sink to the system board. NOTE: Tighten the captive screws in the sequential order mentioned on the heat sink [1 > 2 > 3 > 4]. NOTE: The number of screws varies depending on the configuration ordered.

  • Page 46: Installing The Heat Sink - Discrete

    Steps 1. Loosen the seven captive screws that secure the heat sink to the system board. NOTE: Loosen the captive screws in the reverse sequential order mentioned on the heat sink [7>6>5>4>3>2>1]. NOTE: The number of screws varies depending on the configuration ordered. 2.

  • Page 47: Power-Button Board

    Steps 1. Place the heat sink on the system board. 2. Tighten the seven captive screws that secure the heat sink to the system board. NOTE: Tighten the captive screws in the sequential order mentioned on the heat sink [1 > 2 > 3 > 4> 5 > 6 > 7]. NOTE: The number of screws varies depending on the configuration ordered.

  • Page 48: Installing The Power Button

    Steps 1. Remove the single (M2x2) screw securing the power button to the palm-rest and keyboard assembly. 2. Remove the power button from the computer. Installing the power button 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 power button and provide a visual representation of the installation procedure.

  • Page 49: Power Button With Fingerprint Reader

    Steps 1. Place the power-button board into the slot on the palm-rest and keyboard assembly. 2. Install the single (M2x2) screw to secure the power button to the palm-rest and keyboard assembly. Next steps 1. Install the display assembly. 2. Install the wireless card.

  • Page 50: Installing The Power Button With Optional Fingerprint Reader

    Steps 1. Remove the two (M2.5x5) screws that secure the display assembly hinge to the palm-rest and keyboard assembly. 2. Lift the display assembly hinge to access the power button. 3. Remove the (M2x2) screw that secures the power button to the palm-rest and keyboard assembly. 4.

  • Page 51: Display Assembly

    Steps 1. Using the alignment posts, place the power button with fingerprint reader into its slot on the palm-rest and keyboard assembly. 2. Replace the (M2x2) screw that secures the power button with fingerprint reader to the palm-rest and keyboard assembly. 3.
  • Page 52 About this task The following images indicate the location of the display assembly and provide a visual representation of the removal procedure. Removing and installing components...
  • Page 53 Steps 1. Remove the four (M2.5x5) screws that secure the display hinges to the palm-rest and keyboard assembly. 2. Disconnect the display cable and the speaker cable from the system board (for systems with plastic chassis). NOTE: Disconnect only the display cable from the system board for systems with aluminum chassis. Removing and installing components...

  • Page 54: Installing The Display Assembly

    3. Unroute the speaker cable from the routing guides on the palm-rest and keyboard assembly. 4. Unroute the WLAN antenna cables from the routing guides on the palm-rest and keyboard assembly (for systems with plastic chassis). 5. Open the display hinges at an angle of 90 degrees, and place the system on a flat surface. 6.

  • Page 55: Display Bezel

    Steps 1. Slide the display assembly at an angle, and place the display assembly on the palm-rest and keyboard assembly. 2. Gently press down on the display hinges to align the screw holes on the display hinges with the screw holes on the palm-rest and keyboard assembly.

  • Page 56: Installing The Display Bezel

    1. Follow the procedure in Before working inside your computer. 2. Remove the card. 3. Remove the base cover. 4. Remove the wireless card. 5. Remove the display assembly. 6. Remove the hinge caps. About this task The following images indicate the location of the display bezel and provide a visual representation of the removal procedure. Steps 1.
  • Page 57 NOTE: This procedure is applicable for systems with plastic chassis. About this task The following image indicates the location of the display bezel and provides a visual representation of the installation procedure. Steps Align the display bezel with the display back-cover and antenna assembly, and then gently snap the display bezel into place. Next steps 1.

  • Page 58: Display Panel

    Display panel Removing the display panel Prerequisites NOTE: This procedure is applicable for systems with a plastic chassis only. 1. Follow the procedure in Before working inside your computer. 2. Remove the card. 3. Remove the base cover. 4. Remove the wireless card.
  • Page 59 Steps 1. Use a plastic scribe to pry the display panel from the bottom-right corner. 2. Gently start prying the display panel along the left and right sides of the display back-cover using your hands. 3. Lift the bottom side of the display panel and slide it downward to release the display brackets from the slots at the top side of the display cover.

  • Page 60: Installing The Display Panel

    NOTE: Ensure that the panel has a clean and smooth surface to rest on to prevent damage. 5. Disconnect the display cable from the display panel assembly and lift the display panel away from the system. NOTE: Do not remove the metal brackets from the panel. Installing the display panel Prerequisites If you are replacing a component, remove the existing component before performing the installation process.
  • Page 61 Steps 1. Place the display panel and display assembly on a clean and flat surface. 2. Connect the display cable to the connector on the display panel and close the latch. 3. Adhere the tape to secure the display-cable connector latch to the display panel. 4.

  • Page 62: Hinge Caps

    7. Press down on the display bezel and snap the display bezel in place. Next steps 1. Install the hinges. 2. Install the display bezel. 3. Install the hinge caps. 4. Install the display assembly. 5. Install the wireless card. 6.

  • Page 63: Installing The Hinge Caps

    Steps NOTE: Before removing the display hinge caps, open the display hinges to 90 degrees. 1. Pinch the left hinge cap in the center. 2. Using a plastic scribe pry the inner side of the left hinge cap and remove it from the left hinge. 3.
  • Page 64 Steps 1. Align the rib inside the left hinge cap to the outer sides. 2. Push the left hinge cap down until it clicks in place. 3. Align the rib inside the right hinge cap to the outer sides. 4. Push the right hinge cap down until it clicks in place. Next steps 1.

  • Page 65: Hinges

    Hinges Removing the hinges Prerequisites NOTE: This procedure is applicable for systems with a plastic chassis only. 1. Follow the procedure in Before working inside your computer. 2. Remove the card. 3. Remove the base cover. 4. Remove the wireless card.

  • Page 66: Installing The Hinges

    Steps 1. Remove the three (M2.5x3.8) screws from the left hinge. 2. Lift and remove the left hinge from the display assembly. 3. Remove the three (M2.5x3.8) screws from the right hinge. 4. Lift and remove the right hinge from the display assembly. Installing the hinges Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.

  • Page 67: Camera Module

    4. Install the three (M2.5x3.8) screws to secure the hinge to the display panel and back cover. Next steps 1. Install the display bezel. 2. Install the hinge caps. 3. Install the display assembly. 4. Install the wireless card. 5. Install the base cover.

  • Page 68: Installing The Camera Module

    NOTE: Start prying the camera module in a sequential order 1>2>3 as indicated on the display back cover. 3. Lift the camera module from the display assembly. Installing the camera module Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the camera module and provide a visual representation of the installation procedure.

  • Page 69: Installing The Edp Cable

    Steps 1. Disconnect the eDP cable from the camera. 2. Peel and remove the eDP cable from the display cover. Installing the eDP cable About this task NOTE: The eDP cable installation procedure is applicable only for systems with plastic chassis. The following image indicates the location of the eDP cable and provides a visual representation of the installation procedure.
  • Page 70 Steps 1. Adhere the tape to securing the eDP cable to the display back cover. 2. Connect the eDP cable to the camera. Next steps 1. Install the display panel. 2. Install the display hinges. 3. Install the display bezel. 4.

  • Page 71: Display Cover And Antenna Assembly

    Display cover and antenna assembly Replacement of the display cover and antenna assembly Prerequisites NOTE: This procedure is applicable for systems shipped with a plastic chassis only. 1. Follow the procedure in Before working inside your computer. 2. Remove the card.

  • Page 72: Touchpad

    Touchpad Removing the touchpad Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the card. 3. Remove the base cover. 4. Remove the 3-cell battery 4-cell battery (whichever applicable). About this task The following images indicate the location of the touchpad and provide a visual representation of the removal procedure. Steps 1.

  • Page 73: Installing The Touchpad

    4. Open the latch and disconnect the touchpad Flexible Flat cable from the connector on the system board. 5. Remove the two screws (M2x2) that secure the touchpad to the palm-rest and keyboard assembly. 6. Lift the touchpad from the palm-rest and keyboard assembly. Installing the touchpad Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 74: System Board

    6. Align the screw holes on the touchpad bracket to the screw holes on the palm-rest and keyboard assembly. 7. Replace the three (M2x2) screws that secure the touchpad bracket to the palm-rest and keyboard assembly. 8. Connect the hard drive cable to the connector on the system board. Next steps 1.
  • Page 75 5. Memory modules 6. Keyboard FFC connector 7. Keyboard-backlight FFC connector 8. Battery connector 9. Touchpad FFC connector 10. Hard drive FFC connector 11. Wireless connector 12. Speaker cable connector 13. Solid-state drive connector The following images indicate the location of the system board and provide a visual representation of the removal procedure. Steps 1.

  • Page 76: Installing The System Board

    c. Hard drive Flexible Flat cable (for systems with 2.5-inch hard drive) d. Touchpad Flexible Flat cable e. Keyboard backlight Flexible Printed cable (for systems with backlit keyboard) f. Keyboard Flexible Printed cable g. Power adapter port cable h. eDP cable 4.
  • Page 77 Steps 1. Place the system board on the palm-rest and keyboard assembly. 2. Align the screw holes on the system board with the screw holes on the palm-rest assembly. 3. Replace the single (M2x2) screw that secures the system board to the palm-rest assembly. 4.

  • Page 78: Power-Adapter Port

    h. eDP cable 6. Close the right-display hinge and align the screw holes on the right-display hinge with the screw holes on the system board. 7. Replace the two (M2.5x5) screws to secure it to the palm-rest assembly. Next steps 1.

  • Page 79: Installing The Power-Adapter Port

    Steps 1. Remove the two (M2.5x5) screws that secure the right hinge to the palm-rest and keyboard assembly. 2. Disconnect the power-adapter cable from the connector on the system board. 3. Lift the power-adapter port from its slot on the palm-rest and keyboard assembly. Installing the power-adapter port Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 80: Palm-Rest And Keyboard Assembly

    Palm-rest and keyboard assembly Removing the palm-rest and keyboard assembly Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the card. 3. Remove the base cover. 4. Remove the 3-cell battery 4-cell battery (whichever applicable). 5. Remove the M.2 2230 solid-state drive M.2 2280 solid-state drive (whichever applicable).

  • Page 81: Installing The Palmrest And Keyboard Assembly

    Steps After performing the pre-requisites, you are left with the palm-rest and keyboard assembly. Installing the palmrest and keyboard assembly Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following image indicates the location of the palmrest and keyboard assembly and provides a visual representation of the installation procedure.
  • Page 82 14. Install the 3-cell battery 4-cell battery (whichever applicable). 15. Install the base cover. 16. Install the card. 17. Follow the procedure in After working inside your computer. Removing and installing components...

  • Page 83: 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 84: 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 85: One Time Boot Menu

    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: ●...
  • Page 86 Table 5. System setup options—Advanced menu (continued) Advanced Default: Enabled USB Emulation Enables or disables the USB emulation feature. This feature defines how the BIOS, in the absence of a USB-aware operating system, handles USB devices. USB emulation is always enabled during POST. NOTE: You cannot boot any type of USB device (floppy, hard drive, or memory key) when this option is off.
  • Page 87 Default: Disabled SupportAssist System Resolution Auto OS Recovery Threshold Controls the automatic boot flow for SupportAssist System Resolution Console and for the Dell OS Recovery tool. Default: 2 SupportAssist OS Recovery Enables or disables the boot flow for the SupportAssist OS Recovery tool in the even of certain system errors.

  • Page 88: Updating The Bios

    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, see Knowledge Article: https:// www.dell.com/support/article/sln153694 BIOS setup...

  • Page 89: Updating The Bios In Linux And Ubuntu

    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.

  • Page 90: Deleting Or Changing An Existing System Setup Password

    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 91: Chapter 5: 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 92: 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 93: 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 94 Table 11. System-diagnostic lights (continued) Blinking pattern Amber White Problem description Suggested resolution System board failure (included ● Flash latest BIOS version BIOS corruption or ROM ● If problem persists, error) replace the system board. No memory/RAM detected ● Confirm that the memory module is installed properly.

  • Page 95: 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 96: Drain Residual Flea Power (Perform Hard Reset)

    5. Press and hold the power button for 20 seconds to drain the flea power. 6. Install the battery. 7. Install the base cover. 8. Connect the power adapter to your computer. 9. Turn on your computer. NOTE: For more information about performing a hard reset, see the knowledge base article 000130881 www.dell.com/support. Troubleshooting...

  • Page 97: Chapter 6: 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 12. Self-help resources Self-help resources Resource location Information about Dell products and services www.dell.com My Dell app...

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