Steinberg st-m01 not working with Boss BR800

I tried using my steinberg st-mo1 microphone on my friends Boss BR800, but there is no sound comig through. Does the microphone only work on steinberg equipment?

Phantom power? Only input 4 will work on the Boss BR800, I guess…

Thank you very much for responding. I tried all inputs, including input 4. Unfortunately, it did not work. I tried changing between mono and stereo as well. Do you perhaps have any other suggestion?
Edit: the solution was to search for phantom power boss br800. A manual showed how to turn on the phantom power