iMessage not working after iOS 26.3 update: How to resolve 'Text Message-RCS' issue?

fsabruhh wrote:

Is iMessage not working for you folks after having updated your firmware to iOS 26.3?

I noticed earlier this morning when one of my group chats moved over from iMessage to "Text Message-RCS". Did not think of it as a big deal as I was receiving messages through it, but by the end of today all my text messages are no longer "iMessage" with other iPhone users. I have used reddit and saw others having issues, and even reported the issue to Apple as of 02.18.2026.

[Re-Titled by Moderator]

Original Title: iOS 26.3-iMessage not working.

I have no issue with message and I updated to ios 26.3 the day it came out, maybe hours after it was released.

Click the links below:

http://support.apple.com/kb/ts2755

https://support.apple.com/en-us/HT213887