I got my unlocked T-Mobile phone today and popped in my AT&T sim from my iPhone 5 and it's working no problem. However, I got this text message from AT&T:
ATT Free Msg: Your new device requires a new SIM card to give you access to all services. Please visit your local ATT store to get a new SIM. Thanks.
Not sure if I actually need to do so since everything is working fine? Did anyone else get this message?
Yeah, I swapped from my 5S to my 6 and got the same text. Phone's working fine though.