As I've been asked by a couple of people recently, and because it's easier to explain with pictures, I've just made a very quick (and not very polished!) video explaining how to remove the top shell of the Vision. If you need to get in there for repairs, or to put a Flytrex on or are just interested in the internals then this gives you a step-by-step and what tools you'll need. I've also shown how to remove the camera unit as well. http://youtu.be/FLgwyoJvqM8 Remember if you do open up the Vision and/or add/remove/swap out any of its hardware then you should always recalibrate the compass in a suitably wide-open and non-ferromagnetic/metallic environment before your next flight.