I have been without my LTE for about a week now. I have tried everything from changing the APN settings around to various ones to resetting the phone to flashing it back to stock. Nothing works. The last thing I remember doing before losing my LTE was checking out the hidden service menu using 3845#*980#. But there's nothing in there that can turn off the LTE. The "LTE only" menu just gives me the test option. It doesn't have a settings option like my wifes phone does, she has the Optimus G. I looked around in there for a few and exited the menu. After that I noticed my LTE was gone. Any ideas?