I am using a Samsung S4 Mini Model GT-l9195 with Lineage OS 14.1. I used the LTE Image to install LOS. But actually, I am not sure if my phone is able to use LTE. Because there was also a non-LTE version available for LOS, I wonder if there are Samsung S4 phones that don't have LTE built in?
The problem is, I have never seen the LTE sing with the mobile data icon yet, but I am also not using Internet very much on the phone.