Iphone 6 no service
My Iphone 6 carrier won't update for Jamaican networks (Lime and Digicel). It keeps showing no service. The current carrier is 19.0 but when i tried updating the carrier with other sims it updated to 19.1 or 20.0. Im currently on ios 8.3. I tried updating to ios 8.4 but still no dice. Can anyone help or shed some light?