Earlier today I had a wierd situation. I saw the message “SIM not allowed”, and “emergency calls only” . I had a WIFI connection, but my cell connection was dead. After spending an hour researching the “SIM not allowed” situation I gave up and rebooted the phone. That fixed the problem. “SIM not allowed” message disappeared, and my cell service returned to normal.
This occurred at my home where I have tested the cell service in the past with WIFI turned off.
What is going on?