What is the procedure to replace the WLAN module in my HP ProBook 640 G2?

To remove the module: 1. Power off computer and disconnect all devices, then power source. 2. Open cover access door and carefully uninstall the battery, hard drive, solid-state drive (if applicable), WWAN module and optical drive in sequence. Disconnect 2 ribbon cable ends from WLAN card and unscrew the mounting screw to release it completely for replacement/reinstallation. Ensure you reconnect the cables then replace the cover components back in reverse order afterward. (Page 44)