UPDATE.
Well, this project is actually rather difficult. Definitely wouldn't say this was simple and unfortunately, I ended up breaking something. The first 4 screws requires you to have to peel off the serial number sticker to get to one of the screws. No big deal there. But the next 2 screws to get the lens assembly knobs removed are a challenge because it's very hard to get the 2 screws to fall out once you've unscrewed 'em.
Then, you have this little black duffel-bag looking thing with 2 green canisters (which I believe are 2 electrolytic capacitors). That's the part where I broke a pair of wires off the solder joints on the board. I believe it's either a little speaker or the microphone. Evidently, the duffel bag sits in a socket and you have to pull it out, but the speaker/mic is under a strap on the duffel bag and I ripped the red & black wires off the board (my fault).
So it looks like it's a loss after all. At least I gave it a try. What a shame. This was an excellent camera when it worked. Calling it a loss and will prolly have to just chuck it. I wonder what actually caused it to get out of focus. Never did get to use the
nail polish. What would have been tough was to get into the lens assembly itself and somehow figure out how to adjust it. Then you'd have to keep re-assembling it to try it out, pull the card, look at the video, disassemble it, re-adjust again, wash, rinse, repeat and until/if you get it back in focus. That would be a lot of time and hassle. I would have broken it eventually.
Something else concerning is, there's a lithium battery that's glued in place so you can't replace it. Why? Won't the battery die out eventually and need to be replaced? It should be left unglued so you can replace it when it dies. Otherwise, you'd have to buy another camera?