Why won't my messages send on my LG OPTIMUS G PRO AT&T after software update TO 4.4.1?

[AC Question]

why won't my messages send on my LG OPTIMUS G PRO AT&T after software update TO 4.4.1?

Why won't my messages send on my LG OPTIMUS G PRO AT&T after software update TO 4.4.1?

I get an alert "Message not sent". whether I use AT&T SMS Messages or Messaging. Please help!

I can receive messages but can't send.

 

[itguyjax8430]

Re: why won't my messages send on my LG OPTIMUS G PRO AT&T after software update TO 4.4.1?

Why won't my messages send on my LG OPTIMUS G PRO AT&T after software update TO 4.4.1?

I get an alert "Message not sent". whether I use AT&T SMS Messages or Messaging. Please help!

I can receive messages but can't send.

Try going to settings, more networks, mobile networks, Access Point Names, and click the menu button up top and rest your APN settings to default.