If it means there is no sound from the speaker, please check the following methods:
1. Press the volume up button to turn up the sound;
2. If connected If you have disconnected a Bluetooth headset or wired headset, please disconnect and try again;
3. Close the background running software and try again;
4. Call up the control center and turn off the silent mode. Do not disturb mode/focus mode;
5. Check whether there is sound from the hands-free during a call, and rule out abnormalities in playing music, videos and other resources;
6. If the body is damaged , liquid or dust entering the outside may affect the sound, please go to vivo customer service center for testing;
7. Please make sure that the speaker is not blocked or blocked, such as protective case, dirt, etc. If there is a blockage, you can try to clean it or go to the vivo customer service center to clean it;
8. Please upgrade the system to the latest version, restart the device, and check again;
9. If the phone is not plugged into a headset and the headset icon is still displayed, the sound may be muted. If the headset is not plugged in but the headset is connected:
1) If the device is dropped and damaged, liquid or dust enters the headphone jack, etc., which may affect the function of the headphone jack, please bring the device to the customer Service center detection;
2) Please try to plug and unplug the headset once to confirm whether the headset icon display returns to normal. If there is still a headphone icon, you can try restarting the phone to check;
3) If the device uses a Type-C headphone interface, please confirm whether you are using a one-to-multiple charging cable or an unofficial headphone adapter cable. These devices may be incompatible with the device, causing the headset icon to display abnormally. It is recommended to disconnect the device to view it.
10. If the above methods fail to help restore, it is recommended to go to the vivo customer service center for processing. Address of vivo customer service center: Go to vivo official website/vivo mall APP--My--site query, select the current city to get the address and contact information of the service center. It is recommended to call in advance before going to avoid empty runs, plan your itinerary reasonably, and travel safely.
If you have more questions or there is no sound in the earpiece, you can go to the vivo official website--My--Online Customer Service--Scroll down to the bottom--Online Customer Service--Enter manual customer service for consultation.