In the service menu find the lte bands and select ALL. Go to phone dialer and type (*#27663368378#) i forget where it is so just look around theres all kinds of stuff you can do.
P.S.
Cricket might not let you use lte i know Red Pocket wouldnt let me use it only h+. That is why i switched to Straight Talk.
P.S.
Cricket might not let you use lte i know Red Pocket wouldnt let me use it only h+. That is why i switched to Straight Talk.