This tutorial shows how to connect a Xiaomi Yi 4k+ camera with the Webcam Tool for Action Cameras.
Important: Make sure that the Xiaomi Yi 4k+ is updated to firmware 1.14 or newer.
Now start your Xiaomi Yi 4k+ camera and select Live:
Then scan the QR code with your Xiaomi Yi camera shown on your computer screen:
After around 30-60 seconds the Xiaomi Yi 4k+ should be connected to the WiFi network and streaming. If the connection fails then you can try to generate a QR code either with the Xiaomi Yi App or on this website.
Next we start the webcam: