I am T-Mo customer and as such can not enroll in IUP online, obviously. My wife has AT&T line (MIL's phone) and offered to use that line to enroll into IUP and pre-order X when it becomes available.
My question is, when we receive X is it possible to eject AT&T SIM before I even power it on for the first time and activate it with my T-Mobile SIM instead?
My question is, when we receive X is it possible to eject AT&T SIM before I even power it on for the first time and activate it with my T-Mobile SIM instead?