There is no sound when calling on iphone, and the other party cannot hear it. The sound is very noisy when turned on on speakerphone, but it can be used with WeChat voice or anything else, and the mic

There is no sound when calling on iphone, and the other party cannot hear it. The sound is very noisy when turned on on speakerphone, but it can be used with WeChat voice or anything else, and the microphone can also be used.

1. Check whether the iPhone has been muted accidentally.

2. There is a conflict between the software and the system, causing the iPhone to have no sound. It is recommended to restore the system. Method: Open Settings, General, Restore, select Erase all content and settings, wait a few minutes, and the phone will automatically recover.

3. The worst case scenario: the cable is in poor contact, the microphone is burned or the speaker is burned. It is recommended to contact after-sales service.