So when i got my 5s i restored it from a back up of my 4 and now when I purchase app and music on my 5s it says it isn't authorized with my Apple ID and makes me answer security questions. Also when I go on iTunes on my computer and check my authorized devices it only has my 4 and not my 5s even after putting the the security questions answers. Any idea on how to get my 5s authorized to my Apple ID?