iPhone 3GS 5.0/4.2.1 BB 6.15 unlocked for Tmobile need help badly
I upgraded to iOS 5 using iTunes and realize that I couldn't get a AT&T sim to unlock and I later realized that I should have used custom firmware to restore. However I found the snowbreeze custom 5.0 firmware and I restored my phone and I installed ultrasn0w 1.2.4 and I notice that my phone says searching and then it later says no service so far I downgraded to 4.2.1 and I'm still having the same problem