NOTE: When removing or reinstalling the USB Type-C bracket to the system board, technicians must place the system
board on an ESD mat to avoid damage.
Installing system board
1. Align the system board with the screw holders on the system.
2. Replace the M2.0 x 3.0 screws to secure the system board to the system.
3. Connect the speaker, LED board, coin cell battery, touchpad, and USH cables, and power connector, cables to the
connectors on the system board.
4. Connect the eDP cable to the connector on the system board.
5. Place the metal bracket over the eDP cable and replace the M2.0 x 3.0 screws to secure it.
6. Place the metal bracket over the memory module connectors and replace the M2.0 x 3.0 screws to secure it to the system.
NOTE: Replacement system boards do not include the SIM card tray (if available), USB Type-C bracket, and DDR ESD
bracket and must be transferred.
7. Install the heat sink.
8. Install the WLAN card.
9. Install the WWAN card.
10. Install the PCIe SSD card.
11. Install the memory module.
12. Connect the battery cable to the connector on the system board.
13. Install the base cover.
14. Install the dummy SIM card tray.
15. Install the SIM card.
16. Follow the procedure in After working inside your computer.
Keyboard
Removing keyboard assembly
NOTE: The keyboard and the keyboard tray together are called the keyboard assembly.
44 Removing and installing components
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