Steps
1. Remove the screw (M2x3) that secures the WLAN bracket to the system board.
2. Remove the WLAN bracket from the system board.
3. Disconnect the two antenna cables that are connected to the WLAN module.
4. For systems enabled with 4G LTE, disconnect the LTE signal cable from the connector on the system board.
5. Disconnect the 30-pin FFC and 40-pin FFC Input Output board cables from the connectors on the system board. Peel the
30-pin FFC and the 40-pin FFC cables.
6. For systems enabled with 4G LTE, disconnect the 30-pin FPC and 40-pin FFC Input Output board cables from the
connectors on the system board. Peel the 30-pin FPC cable with conductive tape and the 40-pin FFC cable.
7. Disconnect the Type-C power cable from the connector on the system board.
8. Open the latch and disconnect the touch pad FPC cable from the connector on the system board.
9. Open the latch and disconnect the keyboard FPC cable from the connector on the system board.
10. Disconnect the speaker cable from the connector on the system board.
11. Remove the screw (M2x4) that secures the display cable bracket to the system board. Lift and remove the display cable
bracket from the system board.
NOTE:
The screw securing the display cable bracket also secures the left Input Output bracket to the system board,
as a result removal of the display cable bracket may leave the left Input Output bracket unsecured. Technicians should
therefore ensure that the left Input Output bracket is not moved or lost during any subsequent disassembly processes.
12. Open the latch and disconnect the display cable from its connector on the system board.
13. Use a plastic scribe to peel and remove the Type-C bracket from the chassis.
14. Remove the four screws (M2x4) that secure the system board in place.
15. Carefully lift and remove the system board from the left side.
36
Removing and installing components
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