CDMA Cellular Configuration Doesn't Complete and No Ability to Call Android 7.1 and Below

Symptoms

• "Cell configuration required" error
• Reset Device "Warning: SCRTN will execute the following operation and reboot phone, are you sure to continue? Reset the MDN to factory default. Reset the MSID to factory default. Reset the Slot 1 NAI to factory default. Reset the Slot 1 NAI password to factory default" message
• Unable to place calls on WiFi or cell

Environment

• All Republic Wireless Phones
• CDMA network
• Android 7.1 and Below

Resolution

1. Connect to WiFi
2. Open Settings
3. Tap More under "Wireless & Networks"
4. Tap Cellular networks
5. Tap CDMA subscription
6. Tap RUIM/SIM
7. Tap Carrier settings 
8. Tap Update device config and wait for the download to finish
9. Open the dialer
10. Enter the code *#*#72786#*#*
11. Wait for the phone to reboot

Cause

Incorrect cellular settings

Additional Notes

This will not factory reset your phone or cause any data to be lost.  The "reset" is only for the cellular settings of the phone.