Vivoy30, what if the phone doesn't sound?

I can't hear the sound when I make a phone call. Please check the following operation methods:

1. Please turn up the phone.

During the call, press the volume increase button to increase the call volume.

2. Confirm whether the Bluetooth device is connected.

If the mobile phone is connected with a Bluetooth device, it can play sounds through Bluetooth devices, such as Bluetooth headsets and car Bluetooth. You can go to Settings-Other Networks and Connections and turn off the Bluetooth function to view.

3. Ensure that the sound holes of the receiver, microphone and speaker are not blocked or blocked.

Please pay attention to whether the protective case and membrane of the mobile phone block the sound hole. If the sound hole is blocked, you can try to clean it or take your mobile phone to the customer service center for cleaning.

4. Check whether the cell phone signal is good.

If the cell phone signal is not good, it will affect the call quality. I suggest you go to a good signal area for a call test.

5. Comparative test

Comparing different contacts, if a number is abnormal, it may be because of the other person's mobile phone or network.

6. It is recommended to open VoLTE HD calling service (contact the operator to open it).

If the 2/3G calling network environment in your location is not good, it is recommended that you contact the operator to open the VoLTE HD calling service and try again. When the VoLTE function is turned on, the HD icon will be displayed in the signal bar.

7. Upgrade the system

Please upgrade your mobile phone to the latest version for viewing.

8, service center testing

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.