Why is there no sound on the mobile phone?

If you use a vivo phone, it means that you can't hear the other party's voice during the call:

1. During a call, you can press the Volume Up button to turn up the volume, hang up the phone or change another number and try again.

2. If the mobile phone is connected with a Bluetooth device, you can play sound through the Bluetooth device, such as Bluetooth headset, car Bluetooth, etc. You can go to Settings-Other Networks and Connections, and turn off the Bluetooth function to view;

3. If the current network environment is poor, it will affect the call quality. It is suggested that both parties conduct the call test in the area with good signal;

4. If the local 2/3G call network environment is not good, it is recommended to contact the operator to open VoLTE HD call service and try again. After the VoLTE function is turned on, the high-definition icon will be displayed in the signal bar;

5. The new version of the system improves the compatibility and stability, and enters the setup-system upgrade. If it is not the latest version, it is recommended to upgrade the experience;

6. Check whether the receiver and speaker are blocked by protective shell, dust and film. If the receiver and speaker are blocked by dust, you need to go to the vivo customer service center for cleaning. Enter vivo official website-My Service Network, select provinces and cities to inquire the address and contact information of local service centers. You can also click on the webpage link to search for the address of the service center.

If there is no sound in other scenes, you can enter vivo official website-My Online Customer Service-and input the feedback of manual consultation online customer service.