A couple weeks ago the phone stopped reliably making and receiving calls. Now it won’t do it at all. I tried the SIM in my old phone and it works. Contacted the carrier and exhausted their troubleshooting ideas and confirmed the correct network settings.
Anyone have any ideas?
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Try the following: In > Settings, navigate to > Reset options :: Network, apps or device can be reset.
In Reset options, select Reset Wi-Fi, Mobile & Bluetooth. This will reset all network settings, including: Wi-Fi, Mobile data, Bluetooth. Confirm with > Reset settings.
Now reboot your device, set up Wi-Fi again and check APN for SIM Card Carrier, which should have adjusted themselves.