It's okay for Huawei to make a phone call and listen to other people's voices, but there is no sound when it makes its own voice.

1. Check whether the phone is set to conference mode or silent mode.

2. Check whether the ringtone is set to "mute"

3. You can also set "Flip Mute" in Settings-Gesture Control and cancel it.

3. Play the music to see if there is sound. If it is silent, the speaker is broken.

Second, the other party can't hear the local voice.

1, first check whether the microphone is set to mute.

2. Check the phone settings to see if the call volume is adjusted to the lowest.

3. If all are excluded, it may be that the microphone of the mobile phone is broken.

If the hardware fails, it is recommended to send it to Huawei for after-sales or online maintenance, and the maintenance will be free during the warranty period.