So I found an iPhone 3G on the street, missing all the buttons aside from home, and it's locked with a passcode. There was no SIM card in there. I'd like to restore it and jailbreak it, but I can't seem to get it anywhere. I can't get it into DFU/Recovery because there's no power button, and no programs can detect its existence since it's locked with a passcode. I think it's running iOS 4.2.x, but I don't really have a way of checking. What can I do? I've already tried letting the battery drain, plugging it in, and holding down the home button to get it into recovery but that's not working..