Do not remove any of the 3 black screws in the recessed holes or the 3 silver screws nearest the back lens.

Note that one of the FPC is connected to the orientation ring.

Note that one of the plastic tabs has an orientation pillar that fits into the small hole near one of the screws.

Be very careful if you disassemble the orientation ring. There is a sping loaded detent roller that is difficult to re-fit.