From the screenshot you provide I see a āOpen GRBLā button. Do you know what version of GRBL this controller/laser system is using? That information will be critical for proper setup of LightBurn.
Have a look at this for a good place to help you get started.
I looked up the laser on Google - I canāt see anywhere on the listing what itās running, so thereās a very good chance itās proprietary. I did see āNEJEā on the sample pictures, and if itās one of theirs, itās their own custom firmware, not supported by LightBurn.
I managed to let Lightburns to work with it however itās not working As it should itās giving me Homing Error number 5 And If I use the x and y it gives me different dimension thatās been set up by the manufacture And the power Off the laser is 20 W
āError 5ā is GRBL telling you that youāve asked it to home, but do not have homing enabled in the firmware. When you set up the device you probably enabled āAuto-home on startupā which would tell the controller to home, and give you that error.

