I am having the same issue.
Upgraded to 14.4.2 OS today morning. Since then my mobile is not receiving signal.
Always searches for signal and some times throws error saying "Your iPhone cannot make and receive calls or access mobile data until it has been updated".
Anyone has any solution for this?
thisistrinadh
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution