Four pieces came off the camera when it fell off the shelf...

I just had the same thing happen, and I think I fixed it! The two little black pieces cover the lens when not in use. There are little holes at 12:00 and 6:00 (as if you are looking at a clock). The little black pieces have notches that fit in the holes, and the two pieces fit together like puzzle pieces (almost like a yin/yang symbol). The larger black piece that is more square sort of snaps in over top of those. There are guide holes. Then the lens part snaps back on. You might have to fiddle with it to get those two small pieces to fit, but it should work. Good luck!

The back black piece around the lenses was loose and I ended up losing it after some time. In order to solve that, I am 3D modeling that piece and will print out soon. Even though it is still not possible for me to print out the notches (they are two tiny, and I couldn't find any disasembled piece to copy) I hope it will work out and prevent from dust get inside of the camera. If someone is willing to help me (with pictures/ dimensions of the isolated piece) I'd be more than happy to share my 3d files :)

Find the attached videos to fix this