It's important to recognize that this is a camera produced by a Japanese camera manufacturer. The Japanese camera industry loves using JIS (Japanese Industrial Standard) screws over traditional Phillips screws.

Although PH#00 will interchange with JIS#00, it is not a perfect fit. Using Phillips can cause more wear on the head of the JIS screws and cause the screws to prematurely strip. If you are in a pinch, just go ahead and use Phillips.

Have both JIS#00 and JIS#000 screw drivers available for this teardown. Luckily, both bits are included in the ifixit 64bit kit.