iPhone 17 iMessage activation error: 'An error occurred during activation. Try again.'

I just upgraded to an iPhone 17, and now I can no longer use my phone number to receive and reply to iMessages. "An error occurred during activation. Try again."



[Re-Titled by Moderator]

Original Title: Imessages

iPhone 15 Pro, iOS 18

Posted on Nov 16, 2025 1:36 PM

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Question marked as Top-ranking reply

Posted on Nov 17, 2025 2:10 PM

IIlIIIlI wrote:

I just upgraded to an iPhone 17, and now I can no longer use my phone number to receive and reply to iMessages. "An error occurred during activation. Try again."


[Re-Titled by Moderator]
Original Title: Imessages

Follow steps here If you can’t turn on or sign in to iMessage or FaceTime on your iPhone - Apple Support

1 reply
Question marked as Top-ranking reply

Nov 17, 2025 2:10 PM in response to IIlIIIlI

IIlIIIlI wrote:

I just upgraded to an iPhone 17, and now I can no longer use my phone number to receive and reply to iMessages. "An error occurred during activation. Try again."


[Re-Titled by Moderator]
Original Title: Imessages

Follow steps here If you can’t turn on or sign in to iMessage or FaceTime on your iPhone - Apple Support

iPhone 17 iMessage activation error: 'An error occurred during activation. Try again.'

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