Tint Lamp and controller

I tried today to add my Tint (mueller-licht) into my home assistant.
It went totally wrong for a few reasons;
My lamp never got into pairing mode (like it was not flashing, my controller took control of random other zigbee devices and never showed up either)
Dus anyone have experience and maybe the ‘golden’ trick as how to add this to home assistant? Tried turning it on and off a millions times, something I do wrong I guess.

Its the big led ceiling panel I have.