Disconnect the WLAN (Wi-Fi) antenna cables.

These cables connect like button snaps, so just unsnap them by tugging lightly or gently prying them up away from the WLAN card.

Gather the antenna cables (black, white, and grey) and unwind them from the clips they are pinned under to keep them from rattling around.

The grey cable may be attached or unattached to the WLAN card depending on the number of antenna cables your card supports.

Remove the single screw (Philips #0).