Inspiron 5485 2-in-1 Service Manual Computer Model: Inspiron 5485 2-in-1 Regulatory Model: P93G Regulatory Type: P93G002
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 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries.
Contents 1 Before working inside your computer............................................................................................................. 7 Before you begin ................................................................................................................................................................7 2 After working inside your computer............................................................................................................... 8 3 Safety instructions....
14 Removing the solid-state drive................................................................................................................... 28 Prerequisites..................................................................................................................................................................... 28 Procedure.........................................................................................................................................................................
26 Removing the power-adapter port............................................................................................................. 43 Prerequisites..................................................................................................................................................................... 43 Procedure..........................................................................................................................................................................
38 Removing the palm-rest and keyboard assembly....................................................................................... 64 Prerequisites..................................................................................................................................................................... 64 Procedure..........................................................................................................................................................................
1 Before working inside your computer NOTE: The images in this document may differ from your computer depending on the configuration you ordered. Before you begin 1 Save and close all open files and exit all open applications. 2 Shut down your computer. Click Start > Power > Shut down. NOTE: If you are using a different operating system, see the documentation of your operating system for shut-down instructions. 3 Disconnect your computer and all attached devices from their electrical outlets.
2 After working inside your computer CAUTION: Leaving stray or loose screws inside your computer may severely damage your computer. 1 Replace all screws and ensure that no stray screws remain inside your computer. 2 Connect any external devices, peripherals, or cables you removed before working on your computer. 3 Replace any media cards, discs, or any other parts that you removed before working on your computer. 4 Connect your computer and all attached devices to their electrical outlets.
3 Safety instructions Use the following safety guidelines to protect your computer from potential damage and ensure your personal safety. WARNING: 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. WARNING: Disconnect all power sources before opening the computer cover or panels.
• Handle all static-sensitive components in a static-safe area. If possible, use anti-static floor pads and workbench pads. • When unpacking a static-sensitive component from its shipping carton, do not remove the component from the anti-static packing material until you are ready to install the component. Before unwrapping the anti-static packaging, ensure that you discharge static electricity from your body.
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. Lifting equipment Adhere to the following guidelines when lifting heavy weight equipment: CAUTION: Do not lift greater than 50 pounds. Always obtain additional resources or use a mechanical lifting device. 1 Get a firm balanced footing.
4 Recommended tools The procedures in this document may require the following tools: • Phillips screwdriver #1 • Flat-head screwdriver • Plastic scribe 12 Recommended tools
5 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. This is to ensure that the correct number of screws and correct screw type is restored when the component is replaced. NOTE: Some computers have magnetic surfaces. Ensure that the screws are not left attached to such surface when replacing a component. NOTE: Screw color may vary with the configuration ordered. Table 1.
Component Secured to Screw type Quantity Display assembly Palm-rest and keyboard assembly M2.
6 Removing the base cover WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance.
5 Peel off the tape that secures the battery cable to the battery. 6 Peel the tape that secures the battery cable to the battery-cable connector. 7 Disconnect the battery cable from the system board. 8 Turn the computer over, open the display, then press and hold the power button for 15 seconds to ground the system board.
7 Replacing the base cover WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure 1 Close the display and turn the computer over. Connect the battery cable to the system board.
5 Tighten the three captive screws that secure the base cover to the palm-rest and keyboard assembly. 6 Replace the six screws (M2x6) that secure the base cover to the palm-rest and keyboard assembly.
8 Removing the battery WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover.
Removing the battery
9 Replacing the battery WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance.
Post-requisites Replace the base cover.
10 Removing the coin-cell battery WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. CAUTION: Removing the coin-cell battery resets the BIOS setup program’s settings to default.
11 Replacing the coin-cell battery WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure 1 Adhere the coin-cell battery to the palm-rest and keyboard assembly.
12 Removing the memory modules WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover.
13 Replacing the memory modules WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance.
Post-requisites Replace the base cover.
14 Removing the solid-state drive WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. CAUTION: Solid-state drives are fragile. Exercise care when handling the solid-state drive.
Removing the solid-state drive 29
15 Replacing the solid-state drive WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. CAUTION: Solid-state drives are fragile. Exercise care when handling the solid-state drive.
16 Removing the hard drive WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. CAUTION: Hard drives are fragile. Exercise care when handling the hard drive.
5 Remove the four screws (M3x3) that secure the hard-drive bracket to the hard drive. 6 Remove the hard-drive bracket off the hard drive.
17 Replacing the hard drive WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. CAUTION: Hard drives are fragile. Exercise care when handling the hard drive.
Post-requisites 1 Replace the battery. 2 Replace the base cover.
18 Removing the heat sink WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. WARNING: The heat sink may become hot during normal operation.
19 Replacing the heat sink WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. CAUTION: Incorrect alignment of the heat sink can damage the system board and processor.
20 Removing the fan WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover.
21 Replacing the fan WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure 1 Align the screw holes on the fan with the screw holes on the palm-rest and keyboard assembly.
22 Removing the speakers WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover. Procedure 1 Disconnect the speaker cable from the system board.
23 Replacing the speakers WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance.
24 Removing the I/O board WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover.
25 Replacing the I/O board WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance.
26 Removing the power-adapter port WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover.
27 Replacing the power-adapter port WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance.
28 Removing the wireless card WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites Remove the base cover. Procedure 1 Locate the wireless card on the system board.
Removing the wireless card
29 Replacing the wireless card WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure CAUTION: To avoid damage to the wireless card, do not place any cables under it.
30 Removing the display assembly WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites 1 Remove the base cover. 2 Remove the wireless card.
Removing the display assembly 49
31 Replacing the display assembly WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance.
Post-requisites 1 Replace the wireless card. 2 Replace the base cover.
32 Removing the power button with fingerprint reader WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. NOTE: Applicable only for computers that are shipped with fingerprint reader.
33 Replacing the power button with fingerprint reader WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. NOTE: Applicable only for computers that are shipped with fingerprint reader.
34 Removing the system board WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. NOTE: Your computer’s Service Tag is stored in the system board.
5 Disconnect the power-adapter port cable from the system board. 6 Remove the two screws (M2x3) that secure the USB Type-C port bracket to the system board and palm-rest assembly. 7 Lift the USB Type-C port bracket off the system board. 8 Disconnect the speaker cable from the system board. 9 Open the latch, and disconnect the keyboard cable from the system board. 10 Open the latch, and disconnect the keyboard-backlight cable from the system board.
14 Remove the six screws (M2x2) that secure the system board to the palm-rest and keyboard assembly. 15 Lift the system board off the palm-rest and keyboard assembly.
35 Replacing the system board WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. NOTE: Your computer’s Service Tag is stored in the system board.
12 Connect the touch-screen board cable to the system board. 13 Slide the display cable into the connector on the system board and close the latch to secure the cable. 14 Adhere the tapes that secure the display cable and touch-screen board cable to their respective connectors on the system board. 15 Slide the I/O-board cable into the connector on the system board and close the latch to secure the cable.
Post-requisites 1 Replace the wireless card. 2 Replace the heat sink. 3 Replace the fan. 4 Replace the solid-state drive. 5 Replace the coin-cell battery. 6 Replace the memory modules. 7 Replace the battery. 8 Replace the base cover.
36 Removing the touchpad WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites 1 Remove the base cover. 2 Remove the battery.
Removing the touchpad 61
37 Replacing the touchpad WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance.
Post-requisites 1 Replace the battery. 2 Replace the base cover.
38 Removing the palm-rest and keyboard assembly WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Prerequisites 1 Remove the base cover. 2 Remove the battery.
39 Replacing the palm-rest and keyboard assembly WARNING: Before working inside your computer, read the safety information that shipped with your computer and follow the steps in Before working inside your computer. After working inside your computer, follow the instructions in After working inside your computer. For more safety best practices, see the Regulatory Compliance home page at www.dell.com/ regulatory_compliance. Procedure Place the palm-rest and keyboard assembly on a clean and flat surface.
40 Device drivers Wireless and Bluetooth drivers In the Device Manager, check if the network card driver is installed. Install the driver updates from www.dell.com/support. In the Device Manager, check if the Bluetooth driver is installed. Install the driver updates from www.dell.com/support.
41 System setup NOTE: Depending on the computer and its installed devices, the items listed in this section may or may not be displayed. 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).
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.
Table 4. System setup options—Advanced menu Advanced PowerNow! Enable Enables or disables the Intel(R) SpeedStep(tm) mode of the processor. Default: Enabled Virtualization Enables or disables the Intel Virtualization technology. 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.
Advanced Default: Express Charge Battery Health Displays the battery health. Camera Enables or disables the camera. Default: Disabled Battery Charge Configuration Set the battery charge settings with a preselected custom charge start and stop. Default: Adaptive Advanced Battery Charge Configuration Enable Advanced Battery Charge Configuration from the beginning of the day to a specified work period. Default: Disabled Sleep Mode Selects the power-saving state when your computer is idle.
Security HDD2 password Allows you to set, change, or delete the hard-disk drive password. Password Change Allows you to permit or deny system password or HDD password changes. Default: Permitted Computrace Enables or disables the BIOS module interface of the optional Computrace Service from Absolute Software. Default: Deactivate SED Block SID Authentication Enables or disables SED Block SID Authentication.
Boot Default: Disabled File Browser Add Boot Option Allows you to add the boot options. Table 7. System setup options—Exit menu Exit Exit Saving Changes Allows you to exit system setup and save your changes. Save Change Without Exit Allows you to save your changes without exiting the BIOS setup. Exit Discarding Changes Allows you to exit the BIOS setup without saving the changes. Load Optimal Defaults Allows you to restore default values for all system setup options.
42 Troubleshooting Flashing the BIOS You may need to flash (update) the BIOS when an update is available or when you replace the system board. Follow these steps to flash the BIOS: 1 Turn on your computer. 2 Go to www.dell.com/support. 3 Click Product support, enter the Service Tag of your computer, and then click Submit. 4 Click Drivers & downloads > Find it myself. 5 Select the operating system installed on your computer. 6 Scroll down the page and expand BIOS.
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. Running the ePSA diagnostics 1 Turn on your computer. 2 As the computer boots, press the F12 key before the Dell logo appears. 3 On the boot menu screen, select the Diagnostics option. 4 Click the arrow at the bottom left corner. Diagnostics front page is displayed. 5 Click the arrow in the lower-right corner to go to the page listing.
Camera status light: Indicates whether the camera is in use. • Solid white – Camera is in use. • Off – Camera is not in use. Caps Lock status light: Indicates whether Caps Lock is enabled or disabled. • Solid white – Caps Lock enabled. • Off – Caps Lock disabled. WiFi power cycle If your computer is unable to access the internet due to WiFi connectivity issues a WiFi power cycle procedure may be performed.
43 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 9. Self-help resources Self-help resources Resource location Information about Dell products and services www.dell.com Dell Help & Support app Accessing help In Windows search, type Help and Support, and press Enter. Online help for operating system www.dell.
