I just upgraded today to a 4GLTE Thunderbolt, I love the speed.
However I cannot send text messages. I can receive them. When I try to send I get error 97, class 2.
Text Messages worked when I first got the phone, but quit working since then. I tried rebooting and that did not fix it. I removed several apps that I saw online as suggested culprits, that did not resolve it. I removed my facebook account as suggested and that has not resolved it.
I tried *228 only to be told that my phone was activated by SIM card and therefore the *228 didn't matter.
Any other suggestions?