To remove the wireless module, loosen the 8 screws on the base cover of the device. Pry the cover away from the recess points at the hinges. Lift the cover off of the system. Identify and unlatch the wireless module. Loosen the screw, remove the latch and disconnect the cable to lift the module out of the system.
To reinstall the wireless module, place it back in the system. Reconnect the cable, install the latch and tighten the screw. Latch the module to secure it. Place the cover back on the system and install the 8 screws.