Be careful when removing the right side panel. There is a plastic component underneath the side panel that will come free. Note the orientation of this plastic component for reassembly because it is connected to the back-cover release switch.

Also be gentle when removing the top panel because it is delicate and is connected by wires.

Carefully remove the right side panel by grasping it at the bottom and rotating is counter-clockwise. The top panel is now free to snap off.