Remove the WLAN module:
Detach the black Mylar covering (not illustrated) that surrounds the fan.
Several system cables are routed through a channel between the fan and the battery bay. Detach
the black tape from the cables.
Disconnect the wireless antenna cables (1) from the terminals on the WLAN module.
Remove the Phillips PM2.0×3.0 screw (2) that secures the WLAN module to the system board.
(The edge of the module opposite the slot rises away from the device.)
Remove the WLAN module (3) by pulling the module away from the slot at an angle.
WLAN modules are designed with a notch (4) to prevent incorrect insertion.
Reverse this procedure to install the WLAN module.
Component replacement procedures