daughter got new 6s and used my apple id, now our phones are synched and the data is shared, how to undo?
Daughter received a iphone 6 and the apple tech used my apple id while transferring her old phone data to the new. Now my iphone 4 and hers are synched, sharing all contacts and she received my messages. How do I unsync the two phones and separate the shared data?
iPhone 4S, iOS 7.1.2, unsync with 6S