What if there is no sound when the mobile phone makes a voice call?

The voice quality of mobile phone calls is mainly affected by the signal quality of related audio equipment and mobile phone network. If you are using a Huawei mobile phone, please follow the following steps to find out whether the call sound is abnormal:

1. Please make sure that the receiver is not blocked or blocked.

Please pay attention to observe whether the protective sleeve/shell or film covers the receiver; If the receiver is dirty and blocked, try cleaning it with a soft brush dipped in alcohol.

2. Please check whether the sound of the equipment is normal according to the following methods.

Please open my Huawei APP/ service APP on your mobile phone and find my Huawei app> service > I want to test > other > device sound problem (service app> troubleshooting > more > other > device sound problem > start detection).

(1) If abnormal sound is detected, it is recommended to back up important data in advance (third-party applications such as QQ and WeChat need to be backed up separately) and bring the purchase voucher to Huawei Customer Service Center for professional testing.

(2) If the detected sound is normal, please proceed to the next step.

Please check whether the cell phone signal is normal.

If the cell phone signal is abnormal, it will affect the call quality.

Warm reminder: If you use third-party software to make calls (WeChat phone, QQ phone, etc.). ), please ensure that the call is conducted under a good network to ensure the quality of the call.

Please turn Volte on or off again to see if the phone is back to normal.

At present, operators are increasing the construction and coverage of VoLTE network, but there are still some local networks that are not covered, incomplete or incompatible, which may affect the call quality. It can be effectively solved by turning on or off the VoLTE HD call switch. (If the VoLTE switch is not found, the phone turns on VoLTE by default. )

5. Please restore all settings and try again.

(1) Please enter the settings in the search box and press enter to restore all the settings;

(2) Enter the Restore All Settings page and click Restore All Settings;

(3) After entering the screen lock password, confirm it again and click Restore all settings.

Warm reminder:

If your phone doesn't have a screen lock password, you don't need to enter a password. If you forget the screen lock password, please try to get it back.

The path of EMUI 5.0 is set to >; Advanced settings > backup and reset. When the reset settings are used, the switch of the application avatar will be turned off, resulting in the loss of the application avatar data. Please back up the application data before this operation.

After all the settings are restored, when you set the face or fingerprint to unlock, you need to enter the application lock password to verify the binding. If you forget the application lock password, please try to retrieve it.

If you still can't solve the problem, please back up the data in advance (third-party applications such as QQ and WeChat need to be backed up separately) and bring the purchase voucher to the nearby Huawei customer service center for testing.