my customer log in in his app ID and he use the same account in icloud too,his ipad got an error other shop write upgrade ,his ipad can't activate with his icloud account.
i use <my e-mail> for activate my ipad Mini but still can't.
<E-mail Edited by Host>
iPad, iOS 7.0.4, i use my iD: taisnguyen7@gmail.com