How to cast Android mobile to Android TV streamer?

Here is how everything is connected:
- Android Mobile->Same wifi network->Android TV streamer->HDMI cable->TV
My own configuration:
- Xiaomi MI5->Wifi 5GHz (No less)->Xiaomi Mibox 3 streamer android TV v.8.
How tocast from Mobile to Tv?
- Step 1: Android mobile install Google home app.
- Step 2: On the streamer Android TV, install app AirScreen.
- Step 3: Run the AirScreen app on streamer.
- Step 4: Run Google home app on mobile.
- Step 5: at google home app, select “Cast screen / Audio”and select a device that runs AirScreen.
  - There can be more than 1 device.

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