LTE worked perfectly fine on 7.1.2, with carrier version TFW 16.0. Now on iOS 8, carrier version was updated to TFW 17.0 and LTE is unusable. When I toggle LTE off, 3G works fine and 3G works fine in areas with 3G only. When LTE is automatically picked up its impossibly slow and unusable. LTE worked fine on the previous iOS versiom. Is there anyway I can downgrade the carrier version to TFW 16.0 without going back to 7.1.2? Anyone else having this issue? Thanks.