Unlike numbers of comments, I'd say it's actually very simple to mount and unmount the hull, once you understand the technique. I quickly explained (for left-handed, simply reverse the hands):
- Get on the phone with the left hand firmly holding it between the thumb and middle finger on either side of the unit.
- With the index finger of the same hand, press hard on the lens of the camera. Do not worry, it's solid!
- With the thumb of the right hand, press the upper right corner of the hull (! Not worth having nails), and it just comes. It is the combination of the force on the lens and on the corner of the shell which allows disassembly.
Be careful however, as soon as the hull is released, the battery may fall. It is better to make handling over a table or a support that will prevent the battery from exploding on the tiles of the kitchen falling ...