17. Remove the four screws (M2x2.5), the two screws (M2x4) and the two screws (M2x3) that secure the system board to the
palm-rest and keyboard assembly.
NOTE: This step applies only to computers shipped with a power button without fingerprint reader installed.
18. Using a plastic scribe, pry the coin-cell battery off the palm-rest and keyboard assembly.
19. Carefully lift and remove the system board, along with the coin-cell battery, away from the palm-rest and keyboard
assembly.
20. For computers shipped with 5G antennas, peel off the 5G WWAN-card thermal pad sticker from the system board.
NOTE: The 5G WWAN-card thermal pad sticker must be transferred to the new replacement system board.
21. Remove the shielding cover from the bottom of the system board.
NOTE: This step applies only to computers shipped with a WLAN-antenna module installed on the palm-rest.
Removing and installing components 77
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