Up mini 2 : Nozzle detect and CLAC CLAC CLAC....Up mini 2 blocked

Hello from France. I have changed the Main board of my Up mini 2 and my major problem, filament extrusion is ok, works now. BUT, when I want to make the NOZZLE DETECT, it works also until that the nozzle detect the metalic plate and then CLAC CLAC CLAC…the nozzle does’t come back.
That’s new problem, before the main board replacement, it worked fine
Have somebody idea from when I should come ?
Thanks for your help.

Hello Vincent, also from France,
I just saw you post, and i seem to experience the same slipping motor issue as you did.
Have you find any solution to it yet? Or at least some insights about it?