My brother has a iphone4, a 1.66 mini with tiger. Synced his phone using usb to his mini. Update showed up so he went with it. Disaster. Got corrupt some how. Had no choice but follow on screen directions to set back to factory defaults. He thought he lost everything. Was surprised he didn't loose his photos. But lost all music and most programs. He did not have icloud turned on. He got everything back up and running using OTA update but found out his entire music on the phone and on the mini was erased. The music is all legit. Why would doing this update erase everything on his mini? He is pretty mad but told him I would look into it to find out why. Thanks in advanced for comments.