Yes everything is up to date. Hardware issue is possible but I cant imagine what it would be. Phone has not been damaged and like I mentioned data including voice calls over cell network seem to have no issue. I would sort of understand the phone ...
Seems very similar to my issue. I have been having this issue for about a week. Calls will either not go through or they will connect and then drop usually within a minute. My wife also has public mobile (she is not having any issues) so I switched...