Sim not supported
My iPhone 12 Pro used to work with my local sim before the recent update. After the 15.3.1 update when i insert my sim it brings an update complete screen and it says activation required
Did you buy ths phone used? If so, it was hacked to work with a different carrier. Installing the latest iOS undid the hack.
You have 2 choices:
- Conact the carrier it is locked to and ask them to unlock it.
- Sign up for cellular service with the compnay the phone is locked to.
