After using my phone with an AT&T SIM card in the US, I have no servicewith my Fido SIM card when I replaced it. What can I do?
***Edited to add labels***
Solved! Go to Solution.
Did you get the official unlock of your phone from Apple? If so, I'd suggest contacting them to see about having it unlocked again. It sounds to me as though it may have locked itself to AT&T when you inserted the SIM.
Let us know.