The news of vivo mobile phone doesn't ring?

There is no prompt when receiving SMS, which can be solved by the following methods:

1, to confirm whether the speaker is faulty (if the speaker is damaged, after-sales treatment is required);

2. Enter Settings-Status Bar and Notification-Manage Notification to open the notification authority of information;

3. Enter Settings-Sound (and Vibration)-Information Ringtone-Change Other Ringtones;

4. In the standby interface, press the volume plus key to increase the volume of the ringtone;

5. Enter Settings-More Settings-Backup and Reset/Restore Factory Settings-Restore All Settings/Clear All Settings (please back up the data in your phone before clearing all data).