That’s more information, so that’s good. A few things to try:
-
Power the laser first, then run LightBurn. You should see “Found RDCxxxx” in the status bar on the bottom of the main window.
-
Check your windows device manager to see if there’s anything in there that says a USB device is unrecognized.
-
Unplug the USB, and plug it back in - do you hear the ‘Ding!’ that says Windows knows something was connected? If not, probably a bad cable or connection
-
Are you plugged in to the ‘PC USB’ port on the laser, or the ‘UDisk’ port? (should be PC-USB)