under Settings > Cellkular ...
it says that LTE loads data faster (my 5s/32 says that any way).
I turned off LTE .. and just use Cellular.
Some learned people have pointed out that the system is not up and running for LTE yet ... I don't know.
My 5s/32 keeps losing finger prints and keeps shutting off phone calls now;
That just started about 8 days ago .. when I saw the signal strength buttons on the upper left of the screen start to travel up and down the scale.
I also could not use any of the Apps for a while with just 1 of the 5 dots filled up.
I turn on Airplane Mode and then back on to regular .. that apparently resets the system and the iPhone starts to search for a cellular tower to hook up with.
Finds the Verizon source .. and only 1 out of 5 buttons filled up .. or 2 .. in a big city it is 5 out 5.
I live out in the country.
I am at a loss and Apple Care nor the Genius can sort it out either ...
The iPhone is not on fire or smoking ... nothing permanent is broken .. it just a failure to operate from time to time.
Seems to be completely software related ...
Anyhow .. for me .. a turn off of the LTE helps it work better.