Redmi K20pro wechat can only be seen when it is opened.

Whether to set a custom message prompt tone in WeChat, and use Xiaomi to change the phone or one-click to change the phone to migrate WeChat data. You can set up notification management in your mobile phone. If there is a sound option, you can directly select the required prompt tone. If there is no sound option, you can upgrade to the latest system version and repeat the first step. If it still doesn't exist, WeChat needs to be uninstalled and reloaded, and the data will be lost. It is suggested to use WeChat's own chat record migration function or chat record backup to restore data.