Hi, a friend just brought home his 3g iphone. I dont know much about his phone and neither does he. All he know is that he was using TurboSim and was working perfectly until he accidentally updated to version 2.2.1. Now the thing is, the phone has no signal reception after update. Firmware on the phone is 02.30.03 and since it doesnt have Cydia installed I dont know how to check for bootloader version. Can somebody guide me through steps to work this out. Please? Ty.