Why is there no sound when the phone calls?

If you use a vivo phone, you can check and handle it according to the following methods:

1. Go to Settings-Sound and Vibration-Turn off mute, select "ringtone mode" and turn up the ringtone volume; If there is a mute button on the side of the fuselage, you can dial the mute button up to cancel the mute mode;

2. If you enter do not disturb mode/Focus mode, there will be no incoming call prompt at this time. Please enter Settings-Sound and Vibration/Sound Vibration and Silent Keys-Focus Mode/do not disturb mode-Enter the corresponding scene-Turn off the function;

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

4. Enter Settings-System Management/More Settings-Backup and Reset/Restore Factory Settings-Restore All Settings-Restore;

Note: Restoring all settings will not delete any data or media files, but only restore all settings of the mobile phone (such as setting wallpaper, unlocking method, WiFi, default startup program, desktop layout, etc.). ), some third-party application accounts need to log in again. Please ensure that the use of the software will not be affected before operation. For the sake of data security, it is recommended to back up the mobile phone data in advance before operation. (You can go to Cloud Service-Device Cloud Backup-Backup Data Type-System Data-Back-Back up some backup system settings and desktop layout immediately; Cloud service-data synchronization-enable WLAN, Bluetooth, etc. Synchronize data to cloud services)

5. If the above methods can't be solved, please back up the important data of the mobile phone in advance and take it to the vivo customer service center for testing and processing.

Tips: It is recommended to bring relevant purchase vouchers (such as purchase invoices/warranty cards/ID cards) when you go, and call the service center staff in advance to ensure that the staff will go again during normal working hours, avoid running empty, and pay attention to safety on the way back and forth.