my iphone 3g 4.2.1 turned itself off in the middle of my redsnow jailbreak doing the baseband upgrade to 06.15.00 from 05.15.04. The break was successful, but the baseband is blank! the wifi is grayed out and the bluetooth 00:00:00:00. I tried to redo the baseband change, but my phone turned itself off automatically right during the "flashing BB (don't interrupt!)" part!! Now I can't even turn it on. I guess I need to replace the battery, but not if I can't get the thing back on its feet again. Be charitable! Help a noob!