This is still apparently an issue. I have 2 LG Rumor Touch phones (1 for me, and 1 for my wife). They are both having this issue. We have the latest update (LN510ZVC), but every once in awhile (everyday), we cannot text or call. What is going on with this issue? It has been months! I am about to drop Sprint (after over a decade).
I got my lg rumor touch for Christmas back in December. This code:34 issue has only just started for me for the past few days. Whatever the firmware update was suppose to have supposedly fix, has not been fixed. I keep getting that error notice.