Wondering if anyone knows if I update my iPhone 4 to ios6 if AT&T can still unlock it. I have it jailbroken on 5.0.1 and no matter what I do I can not get it to restore. Nothing but errors in iTunes. Tried changing the host files and tried tiny umbrella . Have my blobs saved and stitched to the ipsw . Not even sure if the phone will update to ios6. Can't even get the phone to erase through the phone itself . I've read and searched everywhere and tried everything even 3 different computers. Let me know your thoughts. Thanks