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jamesbfg Author

Level 1

17 points

iOS 15.4 - iMessage won't active. Error message - "An error occurred during activation."

Hi all, I've just updated to iOS 15.4 and my iMessage has stopped working. I didn't turn it off but it stopped functioning on my iPhone (still works on my Mac).

I have tried

Restarting (hard reset) iPhone with iMessage off and then turning it on again.
Turning iMessage on and off again, but I get an error message - "An error occurred during activation."
I have tired turning on/off Airplane mode.

None of these have worked. A little worried it's a bug in iOS 15.4 as I didn't have any issues before. Any ideas greatly appreciated.

iPhone 12 mini, iOS 15

Posted on Mar 17, 2022 6:52 AM

Top-ranking reply

razmee209

Level 10

193,608 points

Posted on Mar 17, 2022 9:52 AM

jamesbfg wrote:

• Hi all, I've just updated to iOS 15.4 and my iMessage has stopped working. I didn't turn it off but it stopped functioning on my iPhone (still works on my Mac).

I have tried

Restarting (hard reset) iPhone with iMessage off and then turning it on again.

• Turning iMessage on and off again, but I get an error message - "An error occurred during activation."

• I have tired turning on/off Airplane mode.

None of these have worked. A little worried it's a bug in iOS 15.4 as I didn't have any issues before. Any ideas greatly appreciated.

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

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iOS 15.4 - iMessage won't active. Error message - "An error occurred during activation."

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