Firmly secure the main body of the camera with one hand, and use your free hand to grip the front shell.

Rotate the bottom edge of the front shell upwards to separate it from the camera and remove it.

The shell can easily get caught on the flash unit and viewfinder. If you're having trouble, try gently wiggling the shell.

During reassembly:

Firmly push the front shell back onto the camera to engage the clips.

Be very careful that the clip on the right side of the camera doesn't dislodge any of the gears.

Check around the perimeter of the shell seam and make sure there are no gaps. If there are, firmly press the shells together to engage the clip near the gap.