How do I resolve iMessage activation error on iPhone?
imessage showing activation error
[Re-Titled by Moderator]
Original Title: iMessage activation error
iPhone XR, iOS 16
This usually does the trick, provided you have cellular service bars shown...
Settings, Apps, Messages, turn off iMessage,
Settings, Apps, Facetime, turn off Facetime,
Power down the phone.
Turn it on again.
Settings, Apps, Messages, turn on iMessage,
Settings, Apps, Facetime, turn on Facetime