Just looked at the video. The mechanic is rough, unnecessarily so. His method of disassembly is questionable, why on earth did he not remove the neck strap first in stead of part way through. He almost bent the front cover getting it off
I could not be sure if he had worked on this camera before. The removal of screws was random which displays lack of knowledge, and the reckless order of placing loose screws would appear to be because he knows which one goes back correctly. I have partially dismantled a G10 and there are 2 or 3 different screw lengths, they must go back in the right places.
I had to laugh at his inability to fit the accessory adaptor before fitting the front cover.
OK, the general information in the video is sound, although I would not like this guy to service my cameras. For those of us not familiar with the interior of a digital camera I suggest you create a paper grid and label where the screws come from and make notes of the order of disassembly.
I bought a G9 knowing the lens has stuck out, and will be taking it apart to see if I can fix it. Or failing that fit a good used lens. Will post back here when I'm done. And looking forward to seeing anyone else's attempts.