Using a plastic opening pick, partially peel up the top of the back rubber grip.

Carefully begin lifting the back cover up away from the camera body.

Do not lift it all the way off. There is still a ribbon cable attaching the back cover to the main PCB board.

Use a plastic spudger to gently pry off the ribbon cable.

Use a plastic spudger to gently pry off the other cable connecting the back cover to the camera.

The connector tab sticks out slightly on each end of the connector, which gives you a good spot to pry the connector off.