Iphone 3gs 5.1.1 ios baseband 05.13.04 Stuck at No Service
Hi, I have an iphone 3g but when I upgraded it from 3.1.3 ios in itunes to 5.1.1 it is being read as a 3gs ever since in all programs. It's definitely a 3g phone though.
Anyway, I downgraded from the ipad baseband to 05.13.04 and reinstalled mobile substrate as well as reinstalled ultrasn0w 1.2.7 and I still get no service when I put my tmobile sim card. I rebooted, reset network setting and have 3g turned off but still none of them worked.
Carrier reads as 12.0 and when I go to carrier network selection and turn off automatic, it doesnt generate a list of carriers either. It just returns to automatic on.
Please help? I don't know what else to do.