Unable to adjust the power always 100%

Hello, I have a 20W Ortur laser master 2 driven with a MacBook pro and Lightburn V0.9.20. I have the power which seems to be blocked at 100% even with the fire button at 0.25%, I burn everything …
Ortur replaced the laser module and the problem is the same.
Do you have an idea ?

I have the same problem! That and some other problems.

Ortur Laser burning squares instead of designs

If I get my problem fixed maybe you can get yours too!

Would recomend writing at

I pop here now and again but not as often as i should

It’s done I’m waiting for an answer.
I saw the same problem on several forums but there is never a solution …