Vivos 12 caller ID has no ringtone and no page prompts.

There is no sound processing method for mobile phone calls:

1. Go to Settings-Sound and Vibration-Turn off mute, select "ringtone mode" and turn up the ringtone volume;

2. If the moon icon is displayed in the top status bar, it means that the mobile phone has entered do not disturb mode. At this point, the incoming call of the mobile phone will not be prompted. Please go to Settings-Sound and Vibration-do not disturb mode-Turn off "Manual On/Timing On";

3. Restart the phone to see if it is restored;

4. After backing up the data, go to Mobile Settings-System Management-Backup and Reset to restore all settings. This operation will not delete the data in the mobile phone, but will restore all the settings in the mobile phone, including the set wallpaper, unlocking method, WiFi, default opening program, etc. And the third-party software account registered in the mobile phone needs to log in again.

Troubleshooting method of not displaying the call interface when making a phone call;

1. Confirm whether the third-party call management software (such as TouchPal and Hi Call) has been downloaded and installed on the mobile phone. You can uninstall the third-party call management software or enter I Management-Application Management-Permission Management-Application-Call Software-Single Permission Setting-Open the "Background Pop-up Interface" and turn on the switch before using it;

2. Restart the phone;

3. Please back up your data, and then go to Settings-System Management-Backup and Reset to restore all settings. This operation will not delete the data in the mobile phone, but will restore all the settings in the mobile phone, including the set wallpaper, unlocking method, WiFi, default opening program, etc. And the third-party software account registered in the mobile phone needs to log in again.

If the above methods are ineffective after operation, you can take the mobile phone and purchase certificate to the customer service center for testing and processing in time. The address of the customer service center is: enter the service outlet of vivo official website /vivo Mall APP-mine-or the webpage version of vivo official website-slide to the bottom-service support-service outlet query-select provinces and cities to query the address of the customer service center. It is recommended to call in advance before going to avoid empty running, plan your trip reasonably and travel safely.