Fantastic guide, what a help. Follow the caution details about stripping screws. I found that a #00 screwdriver worked better in some places than the #000. The screw in step 9 holds onto the back of the cameras frame in step 8 on my camera, so you might have to peel back the rubber thumb grip to get at it before you start prying the back case off so you don't bend or break the case. Other than that if I had to do it again it probably would take less than 20 minutes.Iit took me about an hour after stripping a couple screws with my #000 and looking for another screwdriver. Also a spudger isn't necessary, I used a guitar pick and a tooth pick to accomplish the same thing.