Android Messages App Not Sending. If none of the solutions mentioned above work, then reset app preferences on your android phone. As a last resort if all troubleshooting fixes listed below do not fix it. If you paid good money for a flagship android that is on the forefront of technology, you’d probably expect it to be able to send and receive text messages, right?
You can try to fix that by clearing the messages app's app data. Sometimes you are not able to send text messages is mainly because of the message app itself.
Tried it once and installed messages, got the same behavior as soon as i installed the messages beta app.
That’s all about how to fix the “message app not working” issue on android. So, you need to clear the cache of the messages app. Open the messages app, go to spam and blocked > more > blocked contacts, and then remove the blocked contact from the list. Several users have been reporting an issue with android messages app that is not alerting users about incoming messages.
