I was given a 1 gen Iphone and I used blackra1n to jailbreak it. It will not let me use my sim to finish unlock through the Blackra1n app installed on the phone. When I put my sim in it shows I have a new voicemail but no signal. itunes recognizes my phone perfectly. I used my friends sim to try it out and his sim is a reg sim with his iphone and still no signal. what did I do wrong? This phonr had been unlocked previously and was using t-mobile sim when I got it. I had to restore because the screen lock code was forgotten. Before restore my sim got a signal when inserted into the iphone. Please help. I want more out of this phone then a ipod with camera