I have a ATT Fusion Android phone. Trying to Send a text message using the Messaging app, I get an error "Send Failed" Error Code 50. Just started happening today. Yesterday I was able to send text messages . Any help on fixing this would be greatly appreciated.
Go into Messaging Settings and uncheck everything that was checked and then test with nothing checked and turned things on one by one to narrow down to see if anything particular thing was causing the problem. Weird, though. After I turned everything back on, it worked again.