So last I synced my phone was about a month ago so I went to sync it again yesterday to get all my new music and an error popped up saying "USB Device not recognized" So I went to another computer same thing. One is running win8 the other win7. I uninstalled Kies and all driver and reinstalled them on both computers same thing USB error. I tried my girlfriends S3 today and it connected no problem. So I know its a problem with my phone and not my computers. I have tried clearing the cache rebooting in safe mode and download mode, pulling out the battery and sim and pretty much everything else with no fix. What else am I missing here or what should I try?