hi ... you sound like youZ guyZ know stuff ... i did from 3.1.3 to 3.1.2.ipsw ... i jb with redsn0w , it all went smooth ... at the end said 'Done' ... the phone had white screen for about 4-5 min. after it went black , after aprox. 5 min. ... i unplugged it from the computer ... i haven't been able to turn it ON since ... ============================================= left it charge over night with new charger ... again at times via USB in computer ... i tried - power/home button thing - nothing plung in computer , itunes nothing ... i tried 1clickboot , but it can find "libusb0.dll" ... what is there to do ? open it UP , disconnect the battery ? 2 days - 0 - action !! ?????????