Any help here?
I got my Sprint iPhone unlocked and got the Tmobile sim and put it in, but it says 'sim not valid' and I can't even access the homescreen, just this error message. Tmobile reps don't understand what's wrong. 3 Sprint reps said 3 different things: 1) No idea what's wrong. 2) Tmobile sim and really any domestic carrier's sim will NEVER work in a Sprint phone; my unlocking was for int'l use which means only for local int'l companies' sims 3) It won't work in US, but once I go abroad, it'll start working.
Any tips? I'm kinda scared to just go abroad and *hope* it works.