iPhone 5 unlock not working
I just put in my request to unlock my iPhone 5 from AT&T.
but it is still showing the message: SIM not valid (on itunes and phone itself)
I called AT&T personally and they say their system shows my imei as already unlocked, so i wonder why i cant activate it. Help me .
iPhone 5, iOS 8.3, Iphone 5 at&t,