What happens if you get an AT&T iPhone 6s on the iPhone Upgrade Program, but then cancel the AT&T service (say if you'd like to use prepaid instead).
Do the 6s/6s+ get locked to AT&T once they are activated on AT&T or is that a thing of the past?
Do the 6s/6s+ get locked to AT&T once they are activated on AT&T or is that a thing of the past?
