Guys i am unable to upgrade or restore my iPhone after gevey sim unlock. iTunes says that this device isn't eligible for the restore request built up. For the same i tried to contact apple and they informed me that as your phone is locked to at&t and you have tried some different method to unlock it, your iPhone couldn't restore or can be upgraded unless and until you contact at&t executive and get it unlocked. I tried contacting at&t but they informed me that they couldn't unlock my iPhone as they don't have any unlock settings and also they stated in a email that "I apologize but AT&T does not have the unlock codes for any Apple products including the iPhone. AT&T and Apple strongly caution against installing any software that makes unauthorized modifications to iPhone OS" Issues Caused by Unauthorized Modifications to iPhone. ? Inability to Apply Future Software Updates: Some unauthorized modifications have caused damage to the iPhone OS that is not repairable. This can result in the iPhone becoming permanently inoperable when a future Apple-supplied OS update is installed, and the user thus not being able to take advantage of continued device and OS improvements. So I am in to deep trouble now as i want to upgrade my os. Is there any alternative for this??