How to change the tone of WeChat messages?
1. Open the WeChat app and click "Settings" on the "Me" page.
2. Click "New Message Notification" on the settings page.
3. Click on the "information prompt tone".
4. Check the tone to be set, and click Finish.
This paper takes Redmi k40 as an example, which is suitable for the version of WeChat V8.0.7 of MIUI 12.5 system.