I have been experiencing problems with my text messaging on my Samsung Galaxy Note 3 since the software update to Android Kit Kat. Messages being sent appear to "Fail" or states "Message Not Sent" in the notification drop down panel.
I spoke with a Verizon technician earlier, who had me clear my cache and force stop the Messages app in the Application Manager, then power cycle the phone. However, I'm still experiencing the same issues of not being able to send text messages since the update to Kit Kat from Jelly Bean. He advised that if I still continue to have issues, a factory reset would resolve the issues. I don't know if that's true or not though, since he said it would retain the Android Kit Kat OS on the phone after the reset and not revert back to the old OS (thus, to me, still have problems with the same OS as before). I have also tried to place the device into Safe Mode and still experiencing the same problem with sending messages. I'm able to receive messages just fine.
Is there anything else that can be done to fix this? I rely on text messaging a lot and cannot continue to have "Message Not Sent" and "Fail" as a continued problem.