Use the opening tool and your fingers to pry apart the outer case. Hold back camera as well as menu navigation buttons while you remove the case.

Unscrew two small Phillips screws holding the outer case to the motherboard. Use the opening tool to unhook the case from the plate covering the motherboard.

The second screw (top left) is under the control PCB. The PCB is mounted to a metal plate that is retained by some adhesive tape underneath and two prongs (bottom-left). You need to pry the plate from the top-right until the tape is broken, then slide the plate upwards (relative to photo). Take care not to pull or tear the ribbon cable.