I wonder if anyone else is experiencing the same issue. I asked to be upgraded to a 4G SIM Only contract from a 3G contract. I received a new 4G SIM with my number already programmed and it works. Except the speed I'm getting is still 6mpbs or less. Exactly what I got with my 3G SIM.
I am in a 4G area with "good" 4G coverage according to Virgin Mobile's coverage checker website. My phone (Sony Xperia Z Ultra) is 4G LTE compatible. "LTE (preferred)/WCDMA/GSM" is selected in the 'Preferred network type" box. However next to the signal bars, it still says "H+". What am I missing please?