ok guys after been tired of my 4g been more off than on and loosing signal at home
I found this app to turn off my lte and stay on 3g all the time.once install
open it up then device info then scroll to the bottom where it says set preferred network type there you can choose what you want it to be I did mine at cdma auto prl.i have 3g signal all the time so far i haven't gotten the no network found crap when on the 4g.just sharing my findings