1) If you do not have an enclosure and you are using the Snapmakerjs 2.6.1/2.7.1, please disable the "door detection" feature as shown below. You need to connect the machine with a computer to close the "door detection".
2) Please open the console in Snapmakerjs and enter the command "M1010 S0" in the console to close the "door detection" in firmware. You need to have the machine and the PC connected when you enter and operate the command in the console.
3) Please connect your computer with the machine, then generate a G-code, extract it to the Workplace, and run it.
Enter a command "M3" in the console to test the function of the laser module. If the light is on, it means that the controller is working properly.