I got my iphone 4 replaced by apple at the genius bar yesterday, and when I restored it, it reset all my passcodes and locks which was fine, but there Is a passcode on the restrictions in settings. I did set a passcode for that before with my old Iphone 4, but i entered it and it said it was wrong??? I'm guessing that apple set a passcode on it??? Cause i put all of my possible codes in???? It;s really weird and strange.. Any help???