Update on my button issue: As i mentioned above, mine was serviced by vgoodiez for another issue in May, and got the new button installed. It started failing to work, and also sometimes shutting down with one button press.
After some back and forth emailing with Tinymight World Headquarters in Finland and sending them videos, they issued me a warranty service authorization. Mailed it to vgoodiez, they received it 1pm Monday 9/30, and have put it in the mail back to me by 2:30 today 10/3. That's a 37.5 hour turnaround time, pretty snappy service.
Of course i have no idea if it works again yet, but have high hopes that i will be back to the super-reliable functioning that i had for the first two years.