Well yesterday I had my friends 1.0.2 iPhone, that was unlocked...revirginized it, upgraded it, jailbroke it. used anysim1.1 unlocked fine, he was at my house for about 3 hours and the phone was working perfectly. Had service the whole time. He leaves my house and soon as he gets down the street the phone has no service and hasn't had it since, its not the SIM because he put it in his other TMobile phones and they work perfect its just in the iPhone for some reason. Any suggestions?