3.
Disconnect the following cables from the system board:
(1) WLAN antenna cables from the WLAN antenna terminals on the system board
(2) GPS antenna cable from the GPS antenna terminal on the system board
(3) Front-facing webcam cable from the ZIF connector on the system board
(4) Display panel cable from the ZIF connector on the system board
(5) Transfer board cable from the ZIF connector on the system board
4.
Turn the middle frame upside down with the volume control buttons facing away.
5.
Disconnect the WWAN antenna cables from the WWAN terminals (1) on the system board.
6.
Remove the five Phillips PM1.9×2.5 screws (2) that secure the system board to the
display panel assembly.
7.
Detach the WLAN antenna transceivers (3) from the system board. (The WLAN antenna transceivers are
attached to the system board with double-sided adhesive.)
8.
Detach the GPS antenna transceiver (4) from the system board. (The GPS antenna transceiver is
attached to the system board with double-sided adhesive.)
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Chapter 5 Removal and replacement procedures