Can't use iMessage and FaceTime on iPhone 6 Plus
I am using iPhone 6+, with the latest iOS available for the device that is 12.4.8. I cannot use iMessage and facetime. When I turn it on, it asks for the regular carrier permission, and then activation error message comes on. rest carrier related text messages like for icloud and some payment apps do get sent, but not for these two.
[Re-Titled by Moderator]
iPhone 6 Plus, iOS 12