iOS 15.6 update caused an error where the phone no longer accesses mobile data, nor makes or receives calls. I follow the instructions to re-do the update by connecting the phone to a MacBook but it just says software is up to date
iOS 15.6 update caused an error where the phone no longer accesses mobile data, nor makes or receives calls. I follow the instructions to re-do the update by connecting the phone to a MacBook but it just says software is up to date. What should I try next?
iPhone 8