unable to activate imessage and facetime

alaz23 wrote:

i signed back into my icloud and i am trying to activate my imessage and facetime but an “error” keeps occurring

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

I know that everyone is trying to help by providing simple reset options but this seems to be an IOS 15.4 software bug that is causing this issue.

iOS 15.4 - iMessage won't active. Error m… - Apple Community

JustJarred wrote:

I know that everyone is trying to help by providing simple reset options but this seems to be an IOS 15.4 software bug that is causing this issue.

iOS 15.4 - iMessage won't active. Error m… - Apple Community

There is more than just doing reset to resolve the issue as outlined in the link I provided in this thread and the thread you linked.