Manual

3. Disconnect all external devices from the computer.
4. Remove any SD card or SD blank from the computer.
5. Remove the service door (see Service door on page 33).
6. Remove the battery (see Battery on page 34).
7. Remove the hard drives (see Hard drive on page 35).
8. Remove the SSDs (see Solid-state drives (M.2) on page 39).
9. Remove the middle frame (see Middle frame on page 48).
10. Remove the speakers (see Speakers on page 49).
11. Remove the fans (see Fans on page 55).
12. Remove the keyboard (see Keyboard on page 61).
NOTE: When replacing the system board, be sure that the following components are removed from the
defective system board and installed on the replacement system board:
●
WLAN module (see WLAN module on page 40)
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WWAN module (see WWAN module on page 42)
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Memory module (see Memory module on page 44)
●
Heat sink (see Heat sink on page 58)
NOTE: You do not have to remove the heat sink to remove the system board.
Remove the system board:
1. Disconnect the following cables from the system board (note the routing location of the cables when
removing them):
(1) Speaker cable
(2) WWAN cable
(3) WLAN cable
(4) Fingerprint reader cable
(5) Smart Card reader cable
(6) Touchpad cable
(7) Display LED board cable
64 Chapter 6 Removal and replacement procedures for authorized service provider parts