The first step to replacing any camera parts is to remove the back panel. This only involves removing several small screws.
Remove the two screws from the side panel closest to the camera lens.
Remove the two screws from the camera bottom panel.
Remove the 2 screws from the side panel farthest from the lens.
Pull the back panel away from the camera body, starting at the end with the function buttons.
Remove the small cover panel and attached wrist strap mount.