Originally Posted by Thatzmister2u
They are buying a new device and will have a new PIN with ATT. Unless I missed something here.
No, it was me even originally.
Because you mentioned changing device PIN on t-mob BIS and resending service books; I was like, but the OP is going to AT&T and will need to setup a new account.
That's when I confused setting up the new device PIN and account with releasing the old device for use on the new BIS.