【Info Need】Video of Control Board at Power ON

In order to help you locate the cause of the fault, please shoot a video to us.

This video should include:

  1. Disconnect the connection of the laser module
  2. Aim your camera at the LED on the control board
  3. Connect the 12V power
  4. Connect the USB cable

If you don’t know how to upload video, The following link may be helpful:
https://neje99.com/forum/how-to-attach-a-video-when-i-post.html