What are the recommended steps to replace the keyboard on an HP ProBook 640 G2 notebook?

Replacing the keyboard involves shutting down the system, disconnecting power and accessories. After removing the service door and battery in sequence according to instructions provided, including other hardware like SSD/HDD/Optical drive/WLAN/WWAN modules, proceed by unfastening 3 mounting screws beneath the keyboard and use a tool for keyboard detaching mechanism by gently pressing into release button area behind memory slots. Follow this with cable disconnect steps before taking off the mainboard attached unit for replacement or repair needs. Ensure reinstallation adheres to reverse sequence of these directions. (Page 48)