Hey guys, just wanted to share this with you. I used to use a M2, until I dropped it accidentally on the toilet (it was clean =P) and I thought "Welp, this one is gone". Just for pure curiosity, I disassembled it a day after it got dropped, cleaned it up and reassembled, but no response. I disassembled again, put it on a plastic bag and forgot it on a shelf. Today I found it and decided to reassemble it. Guess what? It's working! Well, not entirely, the screen (and most likely) the digitizer is dead too, but it boots, makes sounds, vibrates, lights up keyboard keys and touch buttons. I'm buying a new screen for it and will post results if it comes back to life completely.
Wish me luck! =D