Apple's mobile phone has no voice.

1. The most common thing is that the volume is not turned on and the mobile phone is set to vibration mode. Many people often forget to modify it after tuning it to vibration, which leads to unclear hearing. There is a button in the upper left corner of Apple's mobile phone to mute it. Please try it.

2. The mobile phone speaker is broken. Test whether playing music is normal with original headphones. If the earphone is used normally, there is a greater possibility of speaker failure, and it is recommended to send it for repair.

3. The mobile phone software is faulty and the audio driver is damaged. Eliminate software conflicts: backup mobile phone data (phone book, SMS, multimedia files, etc. ) and restore the factory settings (menu-Settings-Reset-Restore Factory Settings). In a similar situation, you can try to download the driver from the relevant mobile phone official website. Of course, if it can't be solved, it needs to be returned to the factory for maintenance.

4. The Bluetooth headset is connected. Please check whether your Bluetooth is turned on. If so, please turn it off. Please close the background application during the call. Maybe the background application robbed the media.

To sum up, please adjust the volume first to rule out whether it is a software problem.

If not, it is a hardware problem.