No service when 3G enabled
I wonder if someone can help me. Trust me, I searched all over the web for this, and have been fooling around with my phone for months, but still couldn't get this issue resolved. Reset network settings, reboot iPhone and all else bring 3G back, that stays on for no more than a few hours. Then, the phone loses service and, when it finds some signal temporarily, sticks to edge, and not 3G anymore. Then no service again...
I have a factory unlocked iPhone 4, but in order to have 3G without rebooting the phone all the time, I keep reinstalling ultrasn0w, that restarts commcenter without wasting time during its set up. I wonder if anyone knows what could be done, really in the deeps of the software if needed. 3G works, temporarily, and that's why I think a software issue is causing this.
Thanks a lot!