i have an unlocked iphone. i didn't unlock the sim, jus jail broke it so i could put games and stuff on there. my you tube wasn't working so i did the itunes update and BAM !!! my i phone is cooked. rendered usless. there's gotta be someone out there who's had this same problem by now and fixed it. i'm just trying to find out how to fix it before i start using my phone as a chew toy for my dog. someone help!!!