Remove the recessed screw that holds the lens in place (red).

Remove the CMOS's motherboard connection. It's connected via a LEGO-style connector under a foam insulator - use a thin spudger or a well-placed fingernail to gently pop it off.

If you are swapping the CMOS from one camera to another, remove it at this step.

Only for those swapping CMOS: remove the three blue encircled screws. The CMOS chip, cable, and shielding are all one module that lifts out. If you just want to remove the CMOS and keep the lens in place, you're done!