After upgrading my stock 9305 from 4.4 to a lollipop rom, I lost access to LTE (in Belgium, BASE). The connection icon only showed E,3G,H, H+. Modem was XXUFOA1, and going into *#*#INFO#*#* to force LTE only led to no data connection at all.
So now I tried XXALK2 and behold, instant LTE after...