M Performance Steering Wheel not working

[is]

So, my M Performance Steering Wheel is either not working or I've no idea how to use it. I can't find anything online about how to use it.

What happens is it occasionally flashes all the shift lights, then appears to be "booting", then goes blank / no lights. Pressing the buttons does nothing.

It's a 2017, and tbh when I got it I didn't know how to use it (still don't), nor cared to much. Now I'd like to figure out if it's broken and I should take in for repair, or I'm just being dumb.

[trininav]

does the display show anything? the shift lights only come on after you've set the threshold.

[arashir]

Try holding down both of the mini screen buttons simultaneously for 3 seconds to turn on the mini screen.
Mine flashes all the shift lights back and forth at some interval only when the car is unlocked but before ignition is started.