alright, it's been a long night. hope i didn't screw up my phone. i downgraded from 3.1.3 to 3.1.2 and experienced the no signal issue. but i thought that upgrading to 4.0 would take care of the problem (not sure why) so i'm currently on 4.0 with baseband 05.13.04 and i still have no signal. any thoughts on what i need to do to regain phone function? thanks.