There is an easy fix. Go to settings. Then open "mobile networks" and after that, change yous setting under "Network mode" from "GLOBAL" to either "LTE / CDMA" or LTE / GSM / UMTS," depending on your carrier's requirements.
There is an easier fix. Go to settings. Then open "mobile networks" and after that, change yous setting under "Network mode" from "GLOBAL" to either "LTE / CDMA" or LTE / GSM / UMTS," depending on your carrier's requirements.