Latitude 3320 Service Manual Regulatory Model: P146G Regulatory Type: P146G001 August 2021 Rev.
Notes, cautions, and warnings NOTE: A NOTE indicates important information that helps you make better use of your product. CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. © 2021 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries.
Contents Chapter 1: Working inside your computer...................................................................................... 6 Safety instructions.............................................................................................................................................................. 6 Before working inside your computer....................................................................................................................... 6 Entering Service Mode.................
System fan.......................................................................................................................................................................... 33 Removing the left system fan.................................................................................................................................. 33 Installing the left system fan....................................................................................................................................
Handling swollen Lithium-ion batteries........................................................................................................................ 75 Dell SupportAssist Pre-boot System Performance Check diagnostics................................................................75 Running the SupportAssist Pre-Boot System Performance Check................................................................ 76 Built-in self-test (BIST)...................................................................
1 Working inside your computer Safety instructions Prerequisites Use the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes that the following conditions exist: ● You have read the safety information that shipped with your computer. ● A component can be replaced or, if purchased separately, installed by performing the removal procedure in reverse order.
6. After the computer is unplugged, press and hold the power button for 5 seconds to ground the system board. CAUTION: Place the computer on a flat, soft, and clean surface to avoid scratches on the display. 7. Place the computer face down. Entering Service Mode Service Mode allows users to immediately cut off electricity from the computer and conduct repairs without disconnecting the battery cable from the system board. To enter Service Mode: 1. Shut down your computer and disconnect the AC adapter. 2.
Bonding Bonding is a method for connecting two or more grounding conductors to the same electrical potential. This is done through the use of a field service electrostatic discharge (ESD) kit. When connecting a bonding wire, ensure that it is connected to bare metal and never to a painted or non-metal surface. The wrist strap should be secure and in full contact with your skin, and ensure that you remove all jewelry such as watches, bracelets, or rings prior to bonding yourself and the equipment.
● ESD Wrist Strap Tester – The wires inside of an ESD strap are prone to damage over time. When using an unmonitored kit, it is a best practice to regularly test the strap prior to each service call, and at a minimum, test once per week. A wrist strap tester is the best method for doing this test. If you do not have your own wrist strap tester, check with your regional office to find out if they have one.
2 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 #0 screwdriver ● Plastic scribe Screw List The following table shows the screw list and the image of the screws. Table 1.
Table 1. Screw list (continued) Component Screw type Quantity Touchpad M2x2 2 Heatsink assembly Captive screws 4 Power button with fingerprint reader M2x3 1 System board M2x2.
Major components of your system 1.
2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. Heatsink assembly Right system fan Left system fan Solid-state drive System board Battery Speaker Palmrest assembly Display assembly Input Output board Coin-cell battery WLAN card Power button with fingerprint reader 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.
Installing the MicroSD-card Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image provides a visual representation of the MicroSD-card installation procedure. Steps Insert the microSD-card into its slot until it clicks into place. Next steps 1. Follow the procedure in after working inside your computer. Base cover Removing the base cover Prerequisites 1.
Removing and installing components 15
Steps 1. Loosen the seven captive screws that secure the base cover to the chassis. 2. Using a plastic scribe, pry open the base cover starting from the recesses located in the U-shaped indents near the hinges at the top edge of the base cover. 3. Pry open the left, right, and bottom sides of the base cover. 4. Carefully lift and remove the base cover from the chassis. NOTE: Be careful of the latches while removing the base cover as the latches may break.
Steps 1. Align and place the base cover on the chassis, and snap the base cover into place. 2. Tighten the seven captive screws to secure the base cover to the chassis. Next steps 1. Exit the service mode. 2. Install the microSD-card. 3. Follow the procedure in after working inside your computer. Solid-state drive Removing the M.2 2230 solid-state drive Prerequisites 1. 2. 3. 4. Follow the procedure in before working inside your computer. Remove the microSD-card. Enter the service mode.
Steps 1. Open the solid-state drive mylar sheet that covers the solid-state drive. NOTE: There is a protective mylar sheet covering the solid-state drive. This mylar sheet must be opened in order to proceed with the removal procedure. 2. Remove the screw (M2x3) that secures the solid-state drive bracket to the system board. 3. Remove the solid-state drive bracket from the system board. 4. Slide and remove the solid-state drive from the M.2 card connector on the system board. Installing the M.
Steps 1. Align the notch on the solid-state drive with the tab on the M.2 card connector. 2. Slide the solid-state drive into the M.2 card connector on the system board. 3. Align and place the solid-state drive bracket. 4. Install the screw (M2x3) that secures the solid-state drive bracket to the system board. 5. Close the solid-state drive mylar sheet to cover the solid-state drive. NOTE: There is a protective mylar sheet covering the solid-state drive.
Removing the M.2 2280 solid-state drive Prerequisites 1. 2. 3. 4. Follow the procedure in before working inside your computer. Remove the microSD-card. Enter the service mode. Remove the base cover. About this task The following image indicates the location of the solid-state drive and provides a visual representation of the removal procedure. Steps 1. Open the solid-state drive mylar sheet that covers the solid-state drive. NOTE: There is a protective mylar sheet covering the solid-state drive.
Steps 1. Align the notch on the solid-state drive with the tab on the M.2 card connector. 2. Slide the solid-state drive into the M.2 card connector on the system board. 3. Replace the screw (M2x3) that secures the solid-state drive to the system board. 4. Close the solid-state drive mylar sheet to cover the solid-state drive. NOTE: There is a protective mylar sheet covering the solid-state drive. This mylar sheet must be closed after the installation procedure. Next steps 1. 2. 3. 4.
Steps 1. Disconnect the speaker cable from the connector on the system board. 2. Unroute the speaker cable from the routing guide. 3. Peel the adhesive tapes that secure the speakers in place. 4. Remove the speakers from the chassis. Installing the speakers Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Steps 1. Align and place the speakers in the slot on the chassis. 2. Route the speaker cables through the routing guide. 3. Connect the speaker cable to the connector. 4. Adhere the adhesive tapes to secure the speakers in place. Next steps 1. 2. 3. 4. Install the battery. Install the base cover. Install the microSD-card. Follow the procedure in after working inside your computer. WLAN card Removing the WLAN card Prerequisites 1. 2. 3. 4. Follow the procedure in before working inside your computer.
Steps 1. Remove the screw (M2x3) that secures WLAN card bracket to the system board. 2. Lift the WLAN card bracket out of the system. 3. Disconnect the antenna cables from the connectors on the WLAN card. 4. Lift and remove the WLAN card from the WLAN card slot. Installing the WLAN card Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Steps 1. Align the notch on the WLAN card with the tab on the WLAN card slot. 2. Slide the WLAN card at an angle into the WLAN card slot. 3. Connect the antenna cables to the connectors on the WLAN card. NOTE: The antenna cable connectors are fragile and utmost care should be taken while replacing them. Table 2.
3. Install the microSD-card. 4. Follow the procedure in After working inside your computer. Coin-cell battery Removing the coin-cell battery Prerequisites 1. 2. 3. 4. Follow the procedure in before working inside your computer. Remove the microSD-card. Enter the service mode. Remove the base cover. About this task NOTE: When the coin-cell battery is removed, it clears the CMOS settings.
About this task The following image indicates the location of the coin-cell battery and provides a visual representation of the installation procedure. Steps 1. Align and place the coin-cell battery on the palmrest assembly. 2. Connect the coin-cell battery cable to the connector on the system board. Next steps 1. 2. 3. 4. Install the base cover. Exit the service mode. Install the microSD-card. Follow the procedure in after working inside your computer.
● Ensure any screws during the servicing of this product are not lost or misplaced, to prevent accidental puncture or damage to the battery and other system components. ● If the battery gets stuck inside your computer as a result of swelling, do not try to release it as puncturing, bending, or crushing a lithium-ion battery can be dangerous. In such an instance, contact Dell technical support for assistance. See www.dell.com/contactdell. ● Always purchase genuine batteries from www.dell.
Installing the battery 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 battery cable and provides a visual representation of the installation procedure. Steps Connect the battery cable to the connector on the system board. Next steps 1. 2. 3. 4. 5. Install the battery. Install the base cover. Exit the service mode. Install the microSD-card.
3. Enter the service mode. 4. Remove the base cover. About this task The following image indicates the location of the battery and provide a visual representation of the removal procedure. Steps 1. Peel the adhesive tapes that secure the battery in place. 2. Peel the adhesive tape and disconnect the battery cable from the connector on the battery. 3. Peel the adhesive tapes and unroute the battery cable from the routing channel in the battery. 4.
Steps 1. Align and place the battery in the slot on the chassis. 2. Install the three (M2x3) screws to secure the battery in place. 3. Route the battery cable through the routing channel in the battery. 4. Connect the battery cable to the connector on the battery and adhere the adhesive tape. 5. Adhere the adhesive tapes to secure the battery in place. Next steps 1. 2. 3. 4. Install the base cover. Exit the service mode. Install the microSD-card. Follow the procedure in After working on your computer.
Steps 1. Peel the adhesive tapes that secure the battery in place. 2. Peel the adhesive tape and disconnect the battery cable from the connector on the battery. 3. Peel the adhesive tapes and unroute the battery cable from the routing channel in the battery. 4. Remove the five (M2x3) screws that secure the battery to the palmrest assembly. 5. Carefully lift and remove the battery from the chassis.
Steps 1. Align and place the battery in the slot on the chassis. 2. Install the five (M2x3) screws to secure the battery in place. 3. Route the battery cable through the routing channel in the battery. 4. Connect the battery cable to the connector on the battery and adhere the adhesive tape. 5. Adhere the adhesive tapes to secure the battery in place. Next steps 1. 2. 3. 4. Install the base cover. Exit the service mode. Install the microSD-card. Follow the procedure in After working on your computer.
Steps 1. Disconnect the system fan cable from the connector on the system board. 2. Remove the two (M2x3) screws that secure the system fan in place. 3. Lift the system fan off the palmrest assembly. Installing the left 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 left system fan and provides a visual representation of the installation procedure.
Steps 1. Align and place the system fan onto the palmrest assembly. 2. Install the two (M2x3) screws that secure the system fan in place. 3. Connect the system fan cable to the connector on the system board. Next steps 1. 2. 3. 4. Install the battery. Install the base cover. Install the microSD-card. Follow the procedure in after working inside your computer. Removing the right system fan Prerequisites 1. 2. 3. 4. Follow the procedure in before working inside your computer. Remove the microSD-card.
Steps 1. For visibility, open the solid-state drive mylar sheet that covers the solid-state drive. 2. Disconnect the system fan cable from the connector on the system board. 3. Remove the two (M2x3) screws that secure the system fan in place. 4. Lift the system fan off the palmrest assembly. Installing the right system fan Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Steps 1. Align and place the system fan onto the palmrest assembly. 2. Install the two (M2x3) screws that secure the system fan in place. 3. Connect the system fan cable to the connector on the system board. 4. Close the solid-state drive mylar sheet to cover the solid-state drive. Next steps 1. 2. 3. 4. Install the battery. Install the base cover. Install the microSD-card. Follow the procedure in after working inside your computer.
Display assembly Removing the display assembly Prerequisites 1. 2. 3. 4. Follow the procedure in before working inside your computer. Remove the microSD-card. Enter the service mode. Remove the base cover. About this task The following images indicate the location of the display assembly and provide a visual representation of the removal procedure. NOTE: The display assembly removal procedure is the same for both laptop and convertible chassis.
Steps 1. Remove the (M2x2.5) screw that secures the display cable bracket. Remove the display cable bracket. 2. Disconnect the display cable from the connector on the system board. 3. Peel the adhesive tape that secures the display cable. 4. Remove the (M2x2.5) screw and four (M2x3) screws that secure the display hinges to the system. 5. Lift the left and right hinges in upward direction away from the system. 6. Lift the system chassis off the display assembly.
After performing the preceding steps, you are left with the display assembly. Installing the display assembly Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. NOTE: The display assembly installation procedure is the same for both laptop and convertible chassis. About this task The following images indicate the location of the display assembly and provide a visual representation of the installation procedure.
Removing and installing components 41
Steps 1. Align and place the system chassis under the hinges of the display assembly. 2. Install the (M2x2.5) screw and four (M2x3) screws that secure the display hinges to the system. 3. Connect the display cable to its connector on the system board. Adhere the adhesive tape to secure the display cable. 4. Align and place the display cable bracket in place. 5. Install the (M2x2.5) screw to secure the display cable bracket. Next steps 1. 2. 3. 4. Install the base cover. Exit the service mode.
Steps 1. Remove the two (M2x3) screws that secure the left display hinge to the system. 2. Lift the left hinge in upward direction away from the system. 3. Open the latch and disconnect the Input Output board cable from the connector on the Input Output board. 4. Remove the (M2x2.5) screw that secures the Input Output board to the palmrest assembly. 5. Lift the Input Output board off the palmrest assembly.
Steps 1. Align and place the Input Output board on the palmrest assembly. 2. Install the (M2x2.5) screw to secure the Input Output board to the palmrest assembly. 3. Connect the Input Output board cable to the connector on the Input Output board and close its latch. 4. Gently press the left hinge in downward direction toward the system. 5. Install the two (M2x3) screws to secure the left display hinge to the system. Next steps 1. 2. 3. 4. Install the base cover. Exit the service mode.
About this task The following image indicates the location of the heatsink assembly and provides a visual representation of the removal procedure. Steps 1. For visibility, open the solid-state drive mylar sheet that covers the solid-state drive. 2. Loosen the four captive screws (in reverse order, 4->3->2->1) that secure the heatsink assembly to the system board. 3. Slide, lift and remove the heatsink assembly from the system board.
Steps 1. Align and place the heatsink assembly into the slot on the system board. 2. Tighten the four captive screws to secure the heatsink assembly to the system board. 3. Close the solid-state drive mylar sheet to cover the solid-state drive. Next steps 1. 2. 3. 4. Install the base cover. Exit the service mode. Install the microSD-card. Follow the procedure in after working inside your computer. Touchpad Removing the touchpad Prerequisites 1. Follow the procedure in before working inside your computer.
2. Remove the microSD-card. 3. Remove the base cover. 4. Remove the battery. About this task The following image indicates the location of the touchpad and provides a visual representation of the removal procedure. Steps 1. Open the latch and disconnect the touchpad cable from the connector on the system board. 2. Remove the three (M2x2) screws that secure the touchpad bracket to the touchpad module. 3. Lift and remove the touchpad bracket from the touchpad module. 4.
Steps 1. Align and place the touchpad module into the slot on the palmrest assembly. 2. Install the two (M2x2) screws to secure the touchpad module to the palmrest assembly. 3. Align and place the touchpad bracket on the touchpad module. 4. Install the three (M2x2) screws to secure the touchpad bracket to the touchpad module. 5. Connect the touchpad cable to the connector on the system board and close the latch. Next steps 1. 2. 3. 4. Install the battery. Install the base cover. Install the microSD-card.
Steps 1. Open the latch and disconnect the power-button board cable from the connector on the system board. 2. Remove the (M2x3) screw that secures the power-button board to the chassis. 3. Remove the power-button board from the chassis. Installing the power-button board Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Steps 1. Align and place the power-button board on the chassis. 2. Install the (M2x3) screw to secure the power-button board to the chassis. 3. Connect the power-button board cable to the connector on the system board and close its latch. Next steps 1. 2. 3. 4. 5. 6. 7. Install the heatsink assembly. Install the input output board. Install the display assembly. Install the base cover. Exit the service mode. Install the microSD-card. Follow the procedure in after working inside your computer.
10. Remove the heatsink assembly. 11. Remove the power button with fingerprint reader. About this task The following image indicates the connectors on your system board. Figure 1. System-board connectors 1. 3. 5. 7. 9. Power button with fingerprint reader cable Display cable Backlit LED cable Touchpad cable Input output board cable 2. 4. 6. 8.
Steps 1. Open the latch and disconnect the touchpad cable, keyboard cable and LED cable from the connectors on the system board. 2. Disconnect the power cable, power button with finger print reader cable, speaker cable, and coin-cell battery cable from the connectors on the system board. 3. Open the latch and pull the input output board cable from the connector on the system board. 4. Remove the (M2x2.5) screw that secures the system board in place.
5. Remove the (M2x3) screw that secures the type-c bracket in place. 6. Lift and remove the system board from the system. 7. Lift and remove the type-c bracket from the system. Installing the system board Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the connectors on your system board. Figure 2. System-board connectors 1. 3. 5. 7. 9.
Removing and installing components
Steps 1. Align and place the type-c bracket on the system board. NOTE: The type-c bracket must be installed on the system board before installing the system board into the palmrest assembly. Technicians cannot install the Type-c bracket once the system board is assembled into the palmrest assembly. 2. Align and place the system board on the chassis. 3. Install the (M2x3) screw to secure the type-c bracket in place. 4. Install the (M2x2.5) screw to secure the system board in place. 5.
Power adapter port Removing the power adapter port Prerequisites 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Follow the procedure in before working inside your computer. Remove the microSD-card. Enter the service mode. Remove the base cover. Remove the speaker. Remove the M.2 solid-state drive. Remove the system fan. Remove the display assembly. Remove the input output board. Remove the heatsink assembly. Remove the power button with fingerprint reader. Remove the system board.
Installing the power adapter port 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 power adapter port and provides a visual representation of the installation procedure. Steps 1. Align and place the power adapter port on the chassis. 2. Route the power adapter port cable through the screw post.
Palmrest assembly Removing the palmrest assembly Prerequisites 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. Follow the procedure in before working inside your computer. Remove the microSD-card. Remove the base cover. Remove the battery. Remove the speaker. Remove the M.2 solid-state drive. Remove the system fan. Remove the display assembly. Remove the input output board. Remove the heatsink assembly. Remove the touchpad. Remove the power button with fingerprint reader. Remove the system board.
2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. Install the power button with fingerprint reader. Install the heatsink assembly. Install the touchpad. Install the input output board. Install the display assembly. Install the system fan. Install the M.2 solid-state drive. Install the speakers. Install the battery. Install the base cover. Install the microSD-card. Follow the procedure in after working inside your computer.
3 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.
4 System setup CAUTION: Unless you are an expert computer user, do not change the settings in the BIOS Setup program. Certain changes can make your computer work incorrectly. NOTE: Before you change BIOS Setup program, it is recommended that you write down the BIOS Setup program screen information for future reference. Use the BIOS Setup program for the following purposes: ● Get information about the hardware installed in your computer, such as the amount of RAM and the size of the hard drive.
Keys Navigation Down arrow Moves to the next field. Enter Selects a value in the selected field (if applicable) or follow the link in the field. Spacebar Expands or collapses a drop-down list, if applicable. Tab Moves to the next focus area. Esc Moves to the previous page until you view the main screen. Pressing Esc in the main screen displays a message that prompts you to save any unsaved changes and restarts the system.
Table 3. System setup options—System information menu (continued) Overview Health Displays the battery health of the system. AC Adapter Displays whether the AC adapter is connected or not. Processor Information Processor Type Displays the processor type. Maximum Clock Speed Displays the maximum processor clock speed. Minimum Clock Speed Displays the minimum processor clock speed. Current Clock Speed Displays the current processor clock speed.
Table 4. System setup options—Boot Configuration menu (continued) Boot Configuration Secure Boot Mode Enable or disable to change the secure boot mode options. By default, the Deployed Mode is enabled. Expert Key Management Enable Custom Mode Enable or disable custom mode. By default, the custom mode option is not enabled. Custom Mode Key Management Select the custom values for expert key management. Table 5.
Table 6. System setup options—Storage menu (continued) Storage Type Displays the M.2 PCIe SSD type information of the system. Device Displays the M.2 PCIe SSD device information of the system. Enable MediaCard Secure Digital (SD) Card Enable or disable the SD card. By default, the Secure Digital (SD) Card option is enabled. Secure Digital (SD) Card Read-Only Mode Enable or disable the SD card read-only mode. By default, the Secure Digital (SD) Card Read-Only Mode option is not enabled. Table 7.
Table 9. System setup options—Power menu (continued) Power Enable Advanced Battery Charge Configuration Enable or disable the advanced battery charge configuration. By default, the Enable Advanced Battery Charge Configuration option is disabled. Peak Shift Enables the system to run on battery during peak power usage hours. Enable Peak Shift By default, the Enable Peak Shift option is disabled.
Table 10. System setup options—Security menu (continued) Security SHA-256 When enabled, the BIOS and TPM will use the SHA-256 hash algorithm to extend measurements into the TPM PCRs during BIOS boot. By default, the SHA-256 option is enabled. Clear Enables to clear the TPM owner information and returns the TPM to the default state. By default, the Clear option is disabled. PPI Bypass for Clear Commands Controls the TPM Physical Presence Interface (PPI).
Table 11. System setup options—Passwords menu (continued) Passwords Password Bypass When enabled, this always prompts for system and internal hard drive passwords when powered on from the off state. By default, the Disabled option is selected. Password Changes Enable Non-Admin Password Changes Enable or disable to change system and hard drive password without the need for admin password. By default, the option is enabled.
Table 13. System setup options—Update, Recovery menu (continued) Update, Recovery BIOSConnect Enable or disable cloud Service operating system recovery if the main operating system fails to boot with the number of failures equal to or greater than the value specified by the Auto operating system Recovery Threshold setup option and local Service operating system does not boot or is not installed. By default, the option is enabled.
Table 16. System setup options—Pre-boot Behavior menu (continued) Pre-boot Behavior By default, the 0 seconds option is enabled. Table 17. System setup options—Virtualization menu Virtualization Intel Virtualization Technology Enable Intel Virtualization Technology (VT) When enabled, the system will be able to run a Virtual Machine Monitor (VMM). By default, the option is enabled. VT for Direct I/O When enabled, the system will be able to perform Virtualization Technology for Direct I/O (VT-d).
Table 18. System setup options—Performance menu (continued) Performance Dynamic Tuning:Machine Learning Enable Dynamic Tuning:Machine Learning Enables the operating system capability to enhance dynamic power tuning capabilities based on detected workloads. By default, the option is disabled. Table 19. System setup options—System Logs menu System Logs BIOS Event Log Clear Bios Event Log Displays BIOS events. By default, the Keep Log option is enabled.
Updating the BIOS in Linux and Ubuntu To update the system BIOS on a computer that is installed with Linux or Ubuntu, see the knowledge base article 000131486 at www.dell.com/support. Updating the BIOS using the USB drive in Windows About this task CAUTION: If BitLocker is not suspended before updating the BIOS, the next time you reboot the system it will not recognize the BitLocker key. You will then be prompted to enter the recovery key to progress and the system will ask for this on each reboot.
Perform the following steps to perform the BIOS update flash process from the F12 menu: CAUTION: Do not turn off the computer during the BIOS update process. The computer may not boot if you turn off your computer. Steps 1. From a turn off state, insert the USB drive where you copied the flash into a USB port of the computer. 2. Turn on the computer and press F12 to access the One-Time Boot Menu, select BIOS Update using the mouse or arrow keys then press Enter. The flash BIOS menu is displayed. 3.
5. Press Y to save the changes. The computer reboots. Deleting or changing an existing system setup password Prerequisites Ensure that the Password Status is Unlocked (in the System Setup) before attempting to delete or change the existing System and Setup password. You cannot delete or change an existing System or Setup password, if the Password Status is Locked. About this task To enter the System Setup, press F2 immediately after a power-on or reboot. Steps 1.
5 Troubleshooting Handling swollen Lithium-ion batteries Like most laptops, Dell laptops use lithium-ion batteries. One type of lithium-ion battery is the lithium-ion polymer battery. Lithium-ion polymer batteries have increased in popularity in recent years and have become standard in the electronics industry due to customer preferences for a slim form factor (especially with newer ultra-thin laptops) and long battery life.
● ● ● ● Display or save test results Run thorough tests to introduce additional test options to provide extra information about the failed device(s) View status messages that inform you if tests are completed successfully View error messages that inform you of problems encountered during testing NOTE: Some tests for specific devices require user interaction. Always ensure that you are present at the computer terminal when the diagnostic tests are performed. For more information, see https://www.dell.
4. If there is no failure with the system board, the LCD will cycle through the solid color screens described in the LCD-BIST section for 30 seconds and then power off. LCD Power rail test (L-BIST) L-BIST is an enhancement to the single LED error code diagnostics and is automatically initiated during POST. L-BIST will check the LCD power rail. If there is no power being supplied to the LCD (i.e., the L-BIST circuit fails), the battery status LED will flash either an error code [2,8] or an error code [2,7].
Table 22. System-diagnostic lights (continued) Blinking pattern Amber White Problem description Suggested resolution 1 5 EC unable to program i-Fuse Replace the system board. 1 6 Generic catch-all for ungraceful EC code flow errors Disconnect all power source (AC, battery, coin cell) and drain flea power by pressing and holding down power button for 3~5 seconds.
Table 22. System-diagnostic lights (continued) Blinking pattern Amber White Problem description 3 6 Flash corruption detected by SBIOS. Suggested resolution ● ● ● ● 3 7 Timeout waiting on ME to reply to HECI message. Press power button for over 25 seconds to do RTC reset. If problem persists, replace the system board. Disconnect all power source (AC, battery, coin cell) and drain flea power by pressing and holding down power button 3~5 seconds to ensure all power are drained.
WiFi power cycle About this task If your computer is unable to access the internet due to WiFi connectivity issues a WiFi power cycle procedure may be performed. The following procedure provides the instructions on how to conduct a WiFi power cycle: NOTE: Some ISPs (Internet Service Providers) provide a modem/router combo device. Steps 1. Turn off your computer. 2. Turn off the modem. 3. Turn off the wireless router. 4. Wait for 30 seconds. 5. Turn on the wireless router. 6. Turn on the modem. 7.
6 Getting help and contacting Dell Self-help resources You can get information and help on Dell products and services using these self-help resources: Table 23. Self-help resources Self-help resources Resource location Information about Dell products and services www.dell.com My Dell app Tips Contact Support In Windows search, type Contact Support, and press Enter. Online help for operating system www.dell.
