Dell Inspiron 15 3521 Service Manual
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Dell Inspiron 15 3521 Service Manual

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Inspiron 15 3521
Service Manual
Regulatory Model: P112F
Regulatory Type: P112F004
February 2022
Rev. A00

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Summary of Contents for Dell Inspiron 15 3521

  • Page 1 Inspiron 15 3521 Service Manual Regulatory Model: P112F Regulatory Type: P112F004 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 3521..........................11 Secure Digital (SD) Card..............................13 Removing the secure digital card ..........................13 Installing the secure digital card ..........................13 Base cover................................... 14 Removing the base cover............................14...
  • Page 4 Removing the system board thermal plate ......................38 Installing the system board thermal plate ......................38 Touchpad.....................................39 Removing the touchpad ............................39 Installing the touchpad ..............................40 Display assembly................................42 Removing the display assembly ..........................42 Installing the display assembly ..........................44 Display hinge caps................................
  • Page 5 Deleting or changing an existing system setup password.................93 Clearing BIOS (System Setup) and System passwords..................94 Chapter 5: Troubleshooting......................95 Handling swollen Lithium-ion batteries........................95 Dell SupportAssist Pre-boot System Performance Check diagnostics............... 95 Running the SupportAssist Pre-Boot System Performance Check..............96 Built-in self-test (BIST)..............................96 M-BIST...................................96 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 3521

    ● 3 ● ● I/O daughter-board M2x3.5 Power button M2x2 Power button with optional M2x2 fingerprint reader Power-adapter port M2.5x5 Major components of Inspiron 15 3521 The following image shows the major components of Inspiron 15 3521. Removing and installing components...
  • Page 12 1. Base cover 2. Battery 3. Speakers 4. Power button assembly 5. Touchpad assembly 6. Touchpad-assembly bracket 7. Power-adapter port 8. M.2 solid-state drive shield Removing and installing components...

  • Page 13: Secure Digital (Sd) Card

    18. Hard-disk 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: Base Cover

    About this task The following images indicate the location of the secure digital card and provide a visual representation of the installation procedure. Steps Slide the secure digital card into the secure digital card slot until it clicks into place. Next steps 1.
  • 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 starting from the recesses, which are 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 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...

  • Page 18: Battery

    Steps 1. Connect the battery cable to the connector on the system board. 2. Place the base cover on top of the palm-rest and keyboard assembly. 3. Align the screw holes on the base cover with the screw holes on the palm-rest and keyboard assembly, and snap the base cover latches into place.

  • 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

    NOTE: Before removing the 3-cell battery, disconnect and remove the hard-drive flexible flat cable from its connector on the system board to avoid tugging of the 3-cell battery on the hard-drive flexible flat cable. 3. Disconnect and remove the battery cable from the 3-cell battery. Installing the 3-cell battery Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.

  • Page 21: Removing The 4-Cell Battery

    Removing the 4-cell battery Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the secure digital card. 3. Remove the base cover. 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.

  • 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 procedure. 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: Memory Module

    NOTE: When replacing the 4-cell battery, use a plastic scribe to push downward into the bottom-left screw hole to insert the battery rubber stopper into the slot on the new replacement 4-cell battery. 2. Connect the battery cable to the 4-cell battery. 3.

  • Page 24: Installing The Memory Module

    Steps 1. Using a plastic scribe, carefully pry the memory-module retention clips, securing the memory module to its slot, until the memory module pops-up. 2. Lift at an angle and remove the memory module from the memory-module slot on the system board. Installing the memory module Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.

  • Page 25: 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 firmly into the memory-module slot at an angle. 3. Press down on the memory module to snap it into place on the system board. Ensure that the memory-module retention clips have locked the memory module into place.

  • Page 26: 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 screw (M2x2) that secures the M.2 2230 solid-state drive thermal plate to the palm-rest and keyboard assembly.
  • Page 27 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. Place the M.2 2230 solid-state drive thermal plate on the M.2 2230 solid-state drive. NOTE: When installing the M.2 2230 solid-state drive thermal plate on the system, tuck the tabs on the M.2 2230 solid-state drive thermal plate under the hooks on the palm-rest and keyboard assembly.

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

    4. Verify if the storage device is installed correctly: a. Turn on or restart your system. b. Press F2 when the Dell logo is displayed on the screen to enter the system setup (BIOS) program. NOTE: A list of storage devices is displayed under the System Information in the General group.

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

    Installing the M.2 2280 solid-state 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 M.2 2280 solid-state drive and provide a visual representation of the installation procedure.

  • Page 30: 2.5-Inch Hard Drive

    4. Verify if the storage device is installed correctly: a. Turn on or restart your system. b. Press F2 when the Dell logo is displayed on the screen to enter the system setup (BIOS) program. NOTE: A list of storage devices are displayed under the System Information in the General group.

  • Page 31: Installing The 2.5-Inch Hard Drive

    Steps 1. Lift the latch and disconnect the hard-drive flexible flat cable from the system board. 2. Remove the four screws (M2x3.5) that secure the hard-drive assembly to the palm-rest and keyboard assembly. 3. Lift the hard-drive assembly along with its interposer and flexible flat cable from the palm-rest and keyboard assembly. 4.
  • Page 32 Steps 1. Align and slide the hard drive into the hard-drive bracket. 2. Align the screw holes on the hard-drive bracket with the screw holes on the hard drive. 3. Replace the four screws (M3x3) to secure the hard drive to the hard-drive bracket. 4.

  • Page 33: Wireless Card

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

  • Page 34: Installing The Wireless Card

    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 images indicate the location of the wireless card and provide a visual representation of the installation procedure. Steps 1.

  • Page 35: Speakers

    Next steps 1. Install the base cover. 2. Install the secure digital card. 3. Follow the procedure in After working inside your computer. Speakers Removing the speakers Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the secure digital card.

  • Page 36: Installing The Speakers

    2. Unroute and remove the speaker cable from the routing guides on palm-rest and keyboard assembly. 3. 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 NOTE: If the rubber grommets are pushed out when removing the speakers, push them back in before replacing the...
  • Page 37 Steps 1. Using the alignment posts and rubber grommets, place the speakers into the slots on the palm-rest and keyboard assembly. NOTE: Ensure that the alignment posts are threaded through the rubber grommets on the speakers. 2. Route the speaker cable along the bottom side of the palm-rest and keyboard assembly, over the WLAN antenna cables. Then secure the speaker cable into the routing guides on the palm-rest and keyboard assembly.

  • Page 38: System Board Thermal Plate

    2. Install the secure digital card. 3. Follow the procedure in After working inside your computer. System board thermal plate Removing the system board thermal plate Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the secure digital card.

  • Page 39: Touchpad

    About this task NOTE: If either the system board or the system board thermal plate is replaced, use the thermal grease provided in the kit to ensure that thermal conductivity is achieved. The following image indicates the location of the system board thermal plate and provides a visual representation of the installation procedure.

  • Page 40: Installing The Touchpad

    Steps 1. Disconnect and remove the hard-drive flexible flat cable from the connector on the system board. 2. Remove the three screws (M2x2) that secure the touchpad bracket in place to the palm-rest and keyboard assembly. 3. Slide and lift the touchpad bracket off the touchpad assembly. 4.
  • Page 41 Steps 1. Align and place the touchpad along with the touchpad flexible flat cable into its slot on the palm-rest and keyboard assembly. 2. Replace the two screws (M2x2) to secure the touchpad to the palm-rest and keyboard assembly. 3. Connect the touchpad flexible flat cable to the connector on the system board. 4.

  • Page 42: Display Assembly

    Display assembly Removing the display assembly Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the secure digital card. 3. Remove the base cover. 4. Remove the wireless card. 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 43 Steps 1. Disconnect the display cable and the speaker cable from the respective connectors on the system board. Removing and installing components...

  • Page 44: Installing The Display Assembly

    2. Unroute the speaker cable and WLAN antenna cables from the respective routing guides on the palm-rest and keyboard assembly. 3. Open the display assembly at an angle of 90 degrees and place the system on the edge of a flat surface such that the palm-rest and keyboard assembly lay flat on the surface and the display assembly is over the edge.
  • Page 45 Removing and installing components...
  • Page 46 Steps 1. Place the palm-rest and keyboard assembly on a flat surface. Removing and installing components...

  • Page 47: Display Hinge Caps

    NOTE: The power-adapter port is secured in place by the left display hinge. There is no screw, tape, or adhesives securing the power-adapter port to the palm-rest. As a result, technicians should take note of whether the power- adapter port has fallen out of the system during subsequent removal procedures. 2.

  • Page 48: Installing The Display Hinge Caps

    About this task The following images indicate the location of the display hinge caps and provide a visual representation of the removal procedure. Steps 1. Place the system on the edge of a flat surface and gently open the display hinges to at least 90 degrees. 2.
  • Page 49 About this task The following images indicate the location of the display hinge caps and provide a visual representation of the installation procedure. Steps 1. Align the rib inside the right-hinge cap to the left-outer side of the right hinge. 2.

  • Page 50: Display Bezel

    Display bezel Removing the display bezel Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the secure digital card. 3. Remove the base cover. 4. Remove the wireless card. 5. Remove the display assembly. 6. Remove the display hinge caps.

  • Page 51: Installing The Display Bezel

    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.

  • Page 52: Display Hinges

    Display hinges Removing the display hinges Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the secure digital card. 3. Remove the base cover. 4. Remove the wireless card. 5. Remove the display assembly. 6. Remove the display hinge caps.

  • Page 53: Installing The Display Hinges

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

  • Page 54: Display Panel

    Next steps 1. Install the display bezel. 2. Install the display hinge caps. 3. Install the display assembly. 4. Install the wireless card. 5. Install the base cover. 6. Install the secure digital card. 7. Follow the procedure in After working inside your computer.
  • Page 55 Removing and installing components...

  • Page 56: Installing The Display Panel

    Steps 1. Using a plastic scribe, pry the display panel from the bottom-right corner. 2. Using your hands, gently pry the display panel from the tabs along the right side of the display back-cover. 3. Repeat step 1 and 2 for the left side of the display panel assembly. 4.
  • Page 57 Removing and installing components...

  • Page 58: Camera

    Steps 1. Place the display panel and display assembly on a clean and flat surface. 2. Connect the display cable to the connector at the back of the display panel and close the latch to secure the cable. 3. Adhere the tape to secure the display-cable connector latch to the back of the display panel. 4.

  • Page 59: Installing The Camera

    6. Remove the display hinge caps. 7. Remove the display bezel. 8. Remove the display hinges. 9. Remove the display panel. About this task The following images indicate the location of the camera module and provide a visual representation of the removal procedure. Steps 1.

  • Page 60: Display Cable

    Steps 1. Using the alignment post, adhere the camera module on the display back-cover and antenna assembly. 2. Connect the camera cable to its connector on the camera module. Next steps 1. Install the display panel. 2. Install the display hinges.

  • Page 61: Installing The Display Cable

    Steps 1. Disconnect the display eDP cable from its connector on the camera module. 2. Carefully peel off and remove the display eDP cable from the display back-cover. Installing the display 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 display cable and provides a visual representation of the installation procedure.
  • Page 62 Steps 1. Adhere the display eDP cable to the display back-cover. 2. Connect the display eDP cable to its connector on the camera module. Next steps 1. Install the display panel. 2. Install the display hinges. 3. Install the display bezel.

  • Page 63: System Board

    System board Removing the system board Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the secure digital card. 3. Remove the base cover. 4. Remove the memory module. 5. Remove the M.2 2230 solid-state drive or the M.2 2280 solid-state drive, whichever applicable.
  • Page 64 NOTE: When removing the system board to replace/access other parts, the system board can be removed with the system board thermal plate attached to it in order to simplify the procedure and preserve the thermal bond between the system board and system board thermal plate. The following images indicate the location of the system board and provide a visual representation of the removal procedure.
  • Page 65 Steps 1. Disconnect the following cables from the system board: a. I/O daughter-board FFC b. Power-adapter port cable c. Keyboard FFC d. Keyboard-backlight FFC, if applicable NOTE: This step applies only to systems shipped with a keyboard backlight installed. e. Touchpad FFC f.

  • Page 66: Installing The System Board

    2. Remove the screw (M2x2) and the three screws (M2x3.5) that secure the system board to the palm-rest and keyboard assembly. NOTE: When removing the system board with the system board thermal plate, remove the two screws (M2x5) that secure the system board thermal plate to the palm-rest and keyboard assembly. 3.
  • Page 67 1. I/O daughter-board FFC connector 2. eDP connector 3. DC-in port connector 4. Keyboard FFC connector 5. Keyboard-backlight FFC connector 6. Battery connector 7. Memory module connector 8. Touchpad FFC connector 9. Hard-drive FFC connector 10. Wireless card connector 11. Speaker cable connector 12.
  • Page 68 The following images indicate the location of the system board and provide a visual representation of the installation procedure. Removing and installing components...
  • Page 69 Steps 1. Place the system board (with the system board thermal plate, if applicable) on the palm-rest and keyboard assembly. 2. Align the screw holes on the system board with the screw holes on the palm-rest and keyboard assembly. NOTE: When installing the system board with the system board thermal plate, replace the two screws (M2x5) to secure the system board thermal plate to the palm-rest and keyboard assembly.

  • Page 70: I/O Daughter-Board Flexible Flat Cable

    3. Replace the screw (M2x2) and the three screws (M2x3.5) to secure the system board to the palm-rest and keyboard assembly. 4. Connect the following cables to the system board: a. I/O daughter-board FFC b. Power-adapter port cable c. Keyboard FFC d.

  • Page 71: Installing The I/O Daughter-Board Flexible Flat Cable

    3. Remove the base cover. About this task The following image indicates the location of the I/O daughter-board flexible flat cable and provides a visual representation of the removal procedure. Steps 1. Lift the latch and disconnect the I/O daughter-board flexible flat cable from the connector on the I/O daughter-board. 2.

  • Page 72: I/O Daughter-Board

    Steps 1. Place the I/O daughter-board flexible flat cable on the palm-rest and keyboard assembly. 2. Connect the I/O daughter-board flexible flat cable to the connector on the system board. 3. Close the latch on the I/O daughter-board flexible flat cable connector to secure it to the system board. 4.

  • Page 73: Installing The I/O Daughter-Board

    Steps 1. Remove the two screws (M2.5x5) that secure the right hinge in place to the palm-rest and keyboard assembly. 2. Lift the right hinge away from the palm-rest and keyboard assembly to access the I/O daughter-board. 3. Lift the latch and disconnect the I/O daughter-board flexible flat cable from the connector on the I/O daughter-board. 4.
  • Page 74 Steps 1. Place the I/O daughter-board under the right hinge and on the palm-rest and keyboard assembly. 2. Align the screw holes on the I/O daughter-board to the screw holes on the palm-rest and keyboard assembly. 3. Replace the three screws (M2x3.5) to secure the I/O daughter-board to the palm-rest and keyboard assembly. 4.

  • Page 75: Power Button

    Power button Removing the power button Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the secure digital card. 3. Remove the base cover. 4. Remove the wireless card. 5. Remove the display assembly. 6. Remove the daughter-board.

  • Page 76: Power Button With Optional Fingerprint Reader

    Steps 1. Place the power button into its slot on the palm-rest and keyboard assembly. 2. Align the screw hole on the power button to the screw hole on the palm-rest and keyboard assembly. 3. Replace the screw (M2x2) to secure the power button to the palm-rest and keyboard assembly. Next steps 1.

  • Page 77: Installing The Power Button With Optional Fingerprint Reader

    Steps 1. Remove the two screws (M2.5x5) that secure the right hinge in place to the palm-rest and keyboard assembly. 2. Lift the right hinge away from the palm-rest and keyboard assembly to access the power button with optional fingerprint reader.

  • Page 78: Power-Adapter Port

    Steps 1. Place the power button with optional fingerprint reader into its slot on the palm-rest and keyboard assembly. 2. Align the screw hole on the power button with optional fingerprint reader to the screw hole on the palm-rest and keyboard assembly.

  • Page 79: Installing The Power-Adapter Port

    About this task The following images indicate the location of the power-adapter port and provide a visual representation of the removal procedure. Steps 1. Remove the two screws (M2.5x5) that secure the left hinge in place to the palm-rest and keyboard assembly. 2.

  • Page 80: Display Back-Cover And Antenna Assembly

    Steps 1. Align and place the power-adapter port into its slot on the palm-rest and keyboard assembly. NOTE: The power-adapter port is secured in place by the left display hinge. There is no screw, tape, or adhesives securing the power-adapter port to the palm rest. As a result, technicians should take note of whether the power- adapter port has fallen out of the system during subsequent removal procedures.

  • Page 81: Installing The Display Back-Cover And Antenna Assembly

    9. Remove the display panel. 10. Remove the camera. 11. Remove the display cable. About this task NOTE: The display back-cover and antenna assembly cannot be further disassembled once all the pre-removal parts procedures are completed. If the wireless antennas are malfunctioning and are required to be replaced, replace the entire display back-cover and antenna assembly.

  • Page 82: Palm-Rest And Keyboard Assembly

    Steps Place the display back-cover and antenna assembly on a flat surface and perform the post-requisites to install the display back-cover and antenna assembly. Next steps 1. Install the display cable. 2. Install the camera. 3. Install the display panel. 4.

  • Page 83: Installing The Palm-Rest And Keyboard Assembly

    6. Remove the 2.5-inch hard-disk drive, if applicable. NOTE: This procedure applies only to systems shipped with a 2.5-inch hard-disk drive installed. 7. Remove the wireless card. 8. Remove the speakers. 9. Remove the 3-cell battery or the 4-cell battery, whichever applicable. 10.
  • Page 84 About this task NOTE: The system board can be installed with the system board thermal plate attached to it in order to simplify the procedure and preserve the thermal bond between the system board and system board thermal plate. The following image indicates the location of the palm-rest and keyboard assembly and provides a visual representation of the installation procedure.

  • Page 85: 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 86: 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 87: One Time Boot Menu

    Table 3. 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 88 Table 4. System setup options—Main menu (continued) Main Keyboard Type Displays the type of keyboard installed on the system. Table 5. System setup options—Advanced menu Advanced Virtualization Enables or disables the Virtualization technology. Default: Enabled VI for Direct I/O Enables or disables the Virtualization technology for Direct I/O.
  • Page 89 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 90 Displays if the system password is clear or set. Default: Deactivate WINDOWS SMM SECURITY MITIGATIONS TABLE Enables or disables configuration of platform features on (WSMT) Dell Client Systems with WSMT-enabled BIOS. Default: Enabled Firmware TPM Enable or disable the firmware TPM. Default: Enabled...

  • Page 91: Updating The Bios

    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 92: 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 93: Assigning A System Setup Password

    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.

  • Page 94: 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 95: 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 96: 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 97: 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 98: Recovering The Operating System

    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.

  • Page 99: Real-Time Clock (Rtc Reset)

    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.
  • Page 100 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 101: 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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