imessages
I put someone's else's sim card in my phone to check a number they can call cuz their phone isn't working so after I do that I put back my sim card and it wont add it to my iMessages "send and receive" accounts and it's just saying "waiting for activation" so what can i do please cuz it's annoying me :(
Also my iMessages are working fine and the messages are blue which is more weird
iPhone 12, iOS 15