Oppo mobile phone sends voice, but the other party can't hear voice.

If you can't hear voice or video calls on WeChat, you can try the following methods: 1. Verify that microphone permissions are turned on. If WeChat is not opened, a box will pop up, and you can choose to allow it.

2. Confirm whether a Bluetooth device is connected, and turn off the Bluetooth switch to try.

3. Change the friend conversation and confirm whether it is caused by a peer-to-peer anomaly.

4. Try to change the network environment and eliminate network reasons.

5. If other applications are using the recording channel and other applications in the mobile phone can't play the sound normally at this time, you need to restart the mobile phone or clean up the background applications of the mobile phone.

6. If you only have voice or video calls on WeChat, the other party can't hear your voice, which may be a WeChat application problem. I suggest you go to wechat > me > settings > help and feedback "and feed back the question to wechat customer service.

You can also back up WeChat data, enter the software store or use the mobile browser to download and install WeChat again.

7. If the above methods still can't solve your problem, I suggest you bring your mobile phone and purchase certificate to the nearest OPPO customer service center for testing by professional engineers.