hi, i got a phone with firmware 1.0.2, and useing mac. My phone have worked in a month now and it is from week 39. i activated my phone and jailbraked it with iNdependence on my mac. I used iUnlock too unlock my iPhone. Everything worked fine until some hours ago. without doing anything my phone got "No service" in the left corner of the screen.

i have deactivated the phone and activated/jailbraked it again (without running iUnlocker) i can choose network in the settings, but i got an error when i have choosed the network.

Anyone have an idea?
Thanks