HP Pavilion x360 Convertible Maintenance And Service Manual page 48

Remove the system board:
1. Disconnect the following cables from the system board:
(1): Display cable
(2): Touch board cable
(3): Power connector cable
(4): Speaker cable
(5): USB/card reader board cable
(6): Wireless antennas (may include one or two antennas)
(7): Power button board cable
2. Remove the Phillips PM2.5×3.0 screw from the WLAN module (1).
CAUTION:
socket until AFTER you removing the system board from the computer.
3. Remove the five Phillips PM2.5×4.0 screws (2) that secure the system board to the computer.
40 Chapter 5 Removal and replacement procedures for Authorized Service Provider parts
To avoid damaging the WLAN module, do not remove the module from the system board