DJI Mini 4 Pro & RC Pro & Litchi Pilot

Hi, anybody here who can tell me step by step how to bind my mini 4 with my RC Pro controller?

The RC Pro is the new one, that came with Mavic 3.
I installed Litchi Pilot already, it’s running.
I closed all DJI apps (hard close in the settings.)
I push & hold the power button on the mini.

What to do next? No binding starts.
Thanks.

I’m pretty sure that the RC Pro (Ocusync 3+) is not compatible with the Mini 4 Pro (Ocusync 4).