I live in an area where there is no LTE yet. My phone presently toggles nicely between wifi and 3g. Later today I'm going to the "big city" where LTE is available so I am trying to set my phone to automatically toggle between 3 g and LTE. I have tried LTE Switch and LTE on off apps and followed each of their instructions to select a particular setting which doesn't even show up on the available selections list. I am curious to know if I made a mistake when originally setting up the phone or so selections are not displayed because no LTE is presently available. Does anyone have any insight into this?