Hi Guys, this is my first post here. And that means that ive tried alot before i reached out to the internet to fix this thing.. Ive bought a phone second hand, but with the receipt and everything. Its an iphone 4s, which is simlock free, so i used my own prepaid card. Everything worked smoothly for a month, but since yesterday i have no signal anymore. The carier shows, and i got wifi. but no signal bars. I tried everything, from resetting network settings, to reinstalling software. Nothing worked. Could it be reported stolen maybe>? Or is it a common problem ? Any suggestions appreciated ! Here is an example pic that shows my problem.