XPS 13 7390 2-in-1 Service Manual Regulatory Model: P103G Regulatory Type: P103G001 November 2020 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. © 2019-2020 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries.
Contents Chapter 1: Safety instructions.......................................................................................................5 Before working inside your computer.............................................................................................................................5 Before you begin ...........................................................................................................................................................
Entering BIOS setup program.........................................................................................................................................37 Navigation keys..................................................................................................................................................................37 Boot Sequence........................................................................................................................................................
1 Safety instructions Use the following safety guidelines to protect your computer from potential damage and to ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes that you have read the safety information that shipped with your computer. NOTE: Before working inside your computer, read the safety information that shipped with your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/regulatory_compliance.
5. Remove any media card and optical disc from your computer, if applicable. Electrostatic discharge—ESD protection ESD is a major concern when you handle electronic components, especially sensitive components such as expansion cards, processors, memory DIMMs, and system boards. Very slight charges can damage circuits in ways that may not be obvious, such as intermittent problems or a shortened product life span.
● ● ● ● strapped to your wrist and push the button to test. A green LED is lit if the test is successful; a red LED is lit and an alarm sounds if the test fails. Insulator Elements – It is critical to keep ESD sensitive devices, such as plastic heat sink casings, away from internal parts that are insulators and often highly charged. Working Environment – Before deploying the ESD Field Service kit, assess the situation at the customer location.
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 screwdriver #00 Phillips screwdriver #0 Torx screwdriver T5 Flat-head screwdriver Plastic scribe Screw list NOTE: When removing screws from a component, it is recommended to note the screw type, the quantity of screws, and then place them in a screw storage box.
Table 1. Screw list (continued) Component Secured to Screw type Quantity System board Palm-rest assembly M1.6x2.5 4 System board Palm-rest assembly M1.2x3 3 System board Palm-rest assembly M1.2x4 1 captive screw Keyboard assembly Palm-rest assembly M1.2x1.4 38 Keyboard assembly Palm-rest assembly M1.2x1.6 10 Screw image Base cover Removing the base cover Prerequisites 1. Follow the procedure in Before working inside your computer.
Removing and installing components
Removing and installing components 11
Steps 1. Remove the eight Torx screws (M2x4.5) that secure the base cover to the palm-rest assembly. 2. Starting from the bottom-left corner, pry the base cover in the direction of the arrows to release it from the palm-rest assembly. CAUTION: Do not pull on or pry the base cover from the top as it may damage the base cover. 3. Hold both sides of the base cover and rotate from front to back to remove from palm rest assembly.
Steps 1. Align and secure the back of the base cover on the palm-rest assembly, and then snap the base cover into place. 2. Replace the eight Torx screws (M2x4.5) that secure the base cover to the palm-rest assembly. Next steps 1. Follow the procedure in After working inside your computer. Battery Lithium-ion battery precautions CAUTION: ● Exercise caution when handling Lithium-ion batteries. ● Discharge the battery completely before removing it.
● Do not apply pressure to the surface of the battery. ● Do not bend the battery. ● Do not use tools of any kind to pry on or against the battery. ● Ensure any screws during the servicing of this product are not lost or misplaced, to prevent accidental puncture or damage to the battery and other system components. ● If the battery gets stuck inside your computer as a result of swelling, do not try to release it as puncturing, bending, or crushing a lithium-ion battery can be dangerous.
Steps 1. Remove the Torx 5 screw (M1.6x3.4) that secures the battery cable to the system board. 2. Disconnect the battery cable from the interposer board. NOTE: Remove the interposer board immediately after disconnecting the battery cable to avoid misplacing it. Hold the edges of the interposer board to avoid damaging the pins on it. NOTE: The interposer board is not polarity sensitive and both sides are compatible. 3. Remove the interposer board from the system board. 4. Remove the seven screws (M1.
Steps 1. Adhere the magnet and the metal bar to the battery. NOTE: Install the magnet and the metal bar from the faulty battery. 2. Align the screw holes on the battery with the screw holes on the system board and palm-rest assembly. 3. Replace the two screws (M1.2x4) that secure the battery to the system board. 4. Replace the seven screws (M1.6x3) that secure the battery to the palm-rest assembly. 5. Place the interposer board to the connector on the system board.
Display assembly Removing the display assembly Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Remove the battery. About this task The following images indicate the location of display assembly and provide a visual representation of the removal procedure.
Steps 1. Loosen the captive screw (M1.6x3) that secures the display-cable bracket to the system board. 2. Lift the display-cable bracket off the system board. 3. Peel the tapes that secure the display cable and camera cable to the system board. 4. Using the tape as a pull tab, disconnect the display cable and camera cable from the system board. 5. Remove the display cable and camera cable from the routing guides on the system board. 6. Remove the four screws (M2.
Installing the display assembly Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following images indicate the location of display assembly and provide a visual representation of the installation procedure.
Steps 1. Slide the palm-rest assembly under the display assembly. 2. Align the screw holes on the palm-rest assembly with the screw holes on the display hinges. 3. Replace the four screws (M2.5x3) that secure the display hinges to the palm-rest assembly. 4. Route the display cable and camera cable through the routing guides on the system board.
5. Connect the display cable and camera cable to the system board. 6. Adhere the tapes that secure the display cable and camera cable to the system board. 7. Align and place the display-cable bracket on the system board. 8. Tighten the captive screw (M1.6x3) that secures the display-cable bracket to the system board. Next steps 1. Install the battery. 2. Install the base cover. 3. Follow the procedure in After working inside your computer. Speakers Removing the speakers Prerequisites 1.
Installing the speakers Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of speakers and provides a visual representation of the installation procedure. Steps 1. Slide the speakers into the slots on the palm-rest assembly. NOTE: Ensure that there is no adhesive residue from the faulty speakers that are removed previously. 2.
System-board assembly Removing the system board Prerequisites CAUTION: Back up all files on the solid-state drive (SSD) to an external storage device before getting your device ready for service. The SSD is soldered onto the system board, and the service replacement board does not have an operating system that is preinstalled on it. Restore files from your backup after the device has been serviced with its reinstalled operating system. 1. Follow the procedure in Before working inside your computer. 2.
Removing and installing components
Steps 1. Loosen the captive screw (M1.6x3) that secures the display-cable bracket to the system board. 2. Lift the display-cable bracket off the system board. 3. Peel the tapes that secure the display cable and camera cable to the system board. 4. Using the tape as a pull tab, disconnect the display cable and camera cable from the system board.
5. Remove the display cable and camera cable from the routing guides on the system board. 6. Remove the screw (M1.6x3) and the screw (M1.6x2) that secures the type-C bracket to the system board. NOTE: The M1.6x2 screw has a bigger head than the M1.6x3 screw. 7. Lift the type-C bracket off the system board. 8. Disconnect the speaker cable from the system board. 9. Open the latch and disconnect the fingerprint-reader cable from the system board. 10.
Removing and installing components 27
Steps 1. Align and place the power button and fingerprint-reader bracket on the palm-rest assembly. 2. Align the screw holes on the system board with the screw holes on the palm-rest assembly. 3. Replace the fours screws (M2x4), three screws (M1.2x3), and one screw (M1.2x4) that secure the system board to the palm-rest assembly. 4. Connect the keyboard-controller board cable to the system board and close the latch to secure the cable. 5. Connect the speaker cable to the system board. 6.
12. Adhere the tapes that secure the display cable and camera cable to the system board. 13. Align and place the display-cable bracket on the system board. 14. Tighten the captive screw (M1.6x3) that secures the display-cable bracket to the system board. Next steps 1. Install the battery. 2. Install the base cover. 3. Follow the procedure in After working inside your computer. Keyboard assembly Removing the keyboard assembly Prerequisites 1. 2. 3. 4.
Removing and installing components
Steps 1. Peel the fingerprint reader cable from the keyboard. 2. Remove the speaker cable from the routing guides on the left keyboard bracket. 3. Loosen the captive screw that secures the left keyboard bracket to the palm-rest assembly. 4. Using a plastic scribe, pry the left keyboard bracket off the palm-rest assembly. 5. Loosen the captive screw that secures the right keyboard bracket to the palm-rest assembly. 6. Using a plastic scribe, pry the right keyboard bracket off the palm-rest assembly. 7.
Removing and installing components
Steps 1. Align the screw holes on the keyboard with the screw holes on the palm-rest assembly. NOTE: Adhere the two conductive tapes on the keyboard, and then adhere the three copper foils on the palm-rest assembly to secure the keyboard assembly to the palm-rest assembly. 2. Replace the 38 screws (M1.2x1.4) and ten screws (M1.2x1.6) that secure the keyboard to the palm-rest assembly. NOTE: Do not install keyboard assembly screws into locations that are marked with MB.
Palm-rest assembly Removing the palm-rest and keyboard assembly Prerequisites 1. 2. 3. 4. 5. 6. 7. Follow the procedure in Before working inside your computer. Remove the base cover. Remove the battery. Remove the display assembly. Remove the speakers. Remove the system-board assembly. Remove the keyboard assembly. About this task The following image indicates the palm-rest assembly and provides a visual representation of the removal procedure.
Steps Place the palm-rest assembly on a flat surface. NOTE: If you are installing components to a new palm-rest assembly, use the power-button bracket from the previous palm-rest assembly. Next steps 1. 2. 3. 4. 5. 6. 7. Install the keyboard assembly. Install the system-board assembly. Install the speakers. Install the display assembly. Install the battery. Install the base cover. Follow the procedure in After working inside your computer.
3 Device drivers Intel Chipset Software Installation Utility In the Device Manager, check if the chipset driver is installed. Install the Intel chipset updates from www.dell.com/support. Video drivers In the Device Manager, check if the video driver is installed. Install the video driver update from www.dell.com/support. Intel Serial IO driver In the Device Manager, check if the Intel Serial IO driver is installed. Install the driver updates from www.dell.com/support.
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.
Boot Sequence Boot Sequence allows you to bypass the System Setup–defined boot device order and boot directly to a specific device (for example: optical drive or hard drive). During the Power-on Self Test (POST), when the Dell logo appears, you can: ● Access System Setup by pressing F2 key ● Bring up the one-time boot menu by pressing F12 key The one-time boot menu displays the devices that you can boot from including the diagnostic option.
Table 2. System setup options—System information menu (continued) Overview Processor ID Displays the processor identification code. Processor L3 Cache Displays the processor L3 Cache size. Current Clock Speed Displays the current processor clock speed. Minimum Clock Speed Displays the minimum processor clock speed. Microcode Version Displays the microcode version. Intel Hyper-Threading Capable Displays whether the processor is Hyper-Threading (HT) capable.
Table 4. System setup options—System Configuration menu System Configuration Date/Time Date Sets the computer date in MM/DD/YYYY format. Changes to the date take effect immediately. Time Sets the computer time in HH/MM/SS 24-hour format. You can switch between 12-hour and 24-hour clock. Changes to the time take effect immediately. Storage Interface Port Enablement Enables the selected onboard drives. SATA Operation Configures operating mode of the integrated SATA hard drive controller. Default: RAID.
Table 4. System setup options—System Configuration menu (continued) System Configuration Enable MediaCard Enables to switch all media cards On/Off or set the media card to read-only state. Default: Enable Secure Digital (SD) Card. Keyboard Illumination Configures the operating mode of the keyboard illumination feature. Default: Bright. Enable the keyboard illumination feature at 100% brightness level.
Table 6. System setup options—Security menu (continued) Security PPI Bypass for Enable Commands Enables or disables the OS to skip BIOS Physical Presence Interface (PPI) user prompts when issuing TPM PPI enabled and activate commands. Default: OFF. PPI Bypass for Disable Commands Enables or disables The OS to skip BIOS PPI user prompts when issuing TPM PPI Disable and Deactivate commands. Default: OFF.
Table 7. System setup options—Secure Boot menu Secure Boot Enable Secure Boot Enables or disables the computer to boot using only validated boot software. Default: OFF. NOTE: For Secure Boot to be enabled, the computer needs to be in UEFI boot mode and the Enable Legacy Option ROMs option needs to be turned off. Secure Boot Mode Selects the Secure Boot operation mode. Default: Deployed Mode. NOTE: Deployed Mode should be selected for normal operation of Secure Boot. Table 8.
Table 10. System setup options—Power Management menu (continued) Power Management Default: ON. Auto on Time Enables the computer to automatically power on for defined days and times. Default: Disabled. The system will not automatically power up. Battery Charge Configuration Enables the computer to run on battery during power usage hours. Use the below options to prevent AC power usage between certain times of each day. Default: Adaptive.
Table 12. System setup options—POST Behavior menu (continued) POST Behavior Default: ON. Enable Adapter Warnings Enables the computer to display adapter warning messages during boot. Default: ON. Extend BIOS POST Time Configures the BIOS POST (Power-On Self-Test) load time. Default: 0 seconds. Fastboot Configures the speed of the UEFI boot process. Default: Thorough. Performs complete hardware and configuration initialization during boot. Fn Lock Options Enables or disables the Fn lock mode.
Table 14. System setup options—Maintenance menu Maintenance Asset Tag Creates a system Asset Tag that can be used by an IT administrator to uniquely identify a particular system. Once set in BIOS, the Asset Tag cannot be changed. Service Tag Displays the Service Tag of the computer. BIOS Recovery from Hard Drive Enables the computer to recover from a bad BIOS image, as long as the Boot Block portion is intact and functioning. Default: ON.
Table 16. System setup options—SupportAssist menu (continued) SupportAssist ● The local Service OS does not boot or is not installed. System and setup password Table 17. System and setup password Password type Description System password Password that you must enter to log on to your system. Setup password Password that you must enter to access and make changes to the BIOS settings of your computer. You can create a system password and a setup password to secure your computer.
About this task To enter the System Setup, press F2 immediately after a power-on or reboot. Steps 1. In the System BIOS or System Setup screen, select System Security and press Enter. The System Security screen is displayed. 2. In the System Security screen, verify that Password Status is Unlocked. 3. Select System Password, alter or delete the existing system password and press Enter or Tab. 4. Select Setup Password, alter or delete the existing setup password and press Enter or Tab.
5 Troubleshooting SupportAssist diagnostics About this task The SupportAssist diagnostics (previously known as ePSA diagnostics) performs a complete check of your hardware. The SupportAssist diagnostics is embedded in the BIOS and is launched by it internally. The SupportAssist diagnostics provides a set of options for particular devices or device groups. It allows you to: ● ● ● ● ● ● Run tests automatically or in an interactive mode.
Table 18. Power and battery-charge status light (continued) Power and battery-charge status light Status of computer Off The computer is in sleep state, hibernation, or turned off. Blinking power and battery-charge status light The power and battery-status light blinks alternately between amber and off to indicate issues that your computer is encountering. For example, the power and battery-status light blinks amber two times followed by a pause, and then blinks white three times followed by a pause.
Flashing BIOS (USB key) Steps 1. Follow the procedure from step 1 to step 7 in "Flashing the BIOS" to download the latest BIOS setup program file. 2. Create a bootable USB drive. For more information see the knowledge base article SLN143196 at www.dell.com/support. 3. Copy the BIOS setup program file to the bootable USB drive. 4. Connect the bootable USB drive to the computer that needs the BIOS update. 5. Restart the computer and press F12 when the Dell logo is displayed on the screen. 6.
3. Turn off the wireless router. 4. Wait for 30 seconds. 5. Turn on the wireless router. 6. Turn on the modem. 7. Turn on your computer. Flea power release About this task Flea power is the residual static electricity that remains on the computer even after it has been powered off and the battery has been removed. The following procedure provides the instructions on how to conduct flea power release: Steps 1. Turn off your computer. 2. Remove the base cover. 3. Remove the battery. 4.
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 20. Self-help resources Self-help resources Resource location Information about Dell products and services www.dell.com My Dell Tips Contact Support In Windows search, type Contact Support, and press Enter. Online help for operating system www.dell.com/support/windows www.dell.
