i got a 3g off craigslist as is, i thought i can fix it but i was wrong, so anyways when i insert a sim card it dosint even recognize it at all it still says no sim, i tried all kinda of sim cards, att, t mobile, i already unlocked it and jailbroke it, i tried restoring it, but nothing happens, still says no sim?? i thing its something wrong with the sim slot itself?? other than that the phone works perfetct