● Solid-state drive (see Solid-state drive on page 46).
● Heat sink (see Heat sink on page 58).
Remove the system board:
1. Release the ZIF connector (1) the connector board cable is connected to, and then disconnect the
connector board cable from the system board.
2. Disconnect the webcam cable (2) from the system board.
3. Carefully disconnect the WWAN module antenna cables (3) from the WWAN module.
NOTE: Computer models have one to four WWAN module antenna cables. The antenna cables
have tags that identify them with a number that corresponds to a terminal on the WWAN module.
Connect the antenna cable to the corresponding WWAN module terminal.
4. Disconnect the display panel cable (4) from the system board.
5. Release the display panel cable from the retention clips (5) that are built into the computer.
6. Carefully disconnect the WLAN module antenna cables (6) from the WLAN module.
NOTE: Computer models have either one or two WLAN module antennas. On models with two
antennas, the #1 white WLAN module antenna cable connects to the WLAN module #1 Main
terminal. The #2 black WLAN module antenna cable connects to the WLAN module #1 Aux terminal.
7. Release the WLAN module antenna cables from the retention clips (7) that are built into the
computer.
8. Disconnect the following cables from the system board:
● Speaker cables (8)
● Keyboard ZIF cable (9)
● Card reader ZIF cable (10)
● Touchpad ZIF cable (11)
● Backlight ZIF cable (12)
● NFC module ZIF cable (13)
● RTC battery cable (14)
● Fingerprint reader ZIF cable (15)
56
Chapter 5 Removal and replacement procedures for authorized service provider parts
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