Redmi k30 cannot receive WeChat voice calls when the screen is locked.

You can't receive voice call messages because you haven't turned on the "Receive voice and video call invitations" setting on WeChat. You only need to turn this on, even if the screen is locked, you can still receive voice call requests. The opening method is as follows:

My mobile phone is also an Android system, and the WeChat version is 8.0.32.

The first step is to open WeChat and enter the "Me" page.

Step 2: On my page, find "Settings" and click Enter.

Step 3, find "New Message Notification" on the settings page.

Step 4: On the new message notification settings page, find "Receive voice and video call invitation" and open the settings. As shown below, this is enough.