Hi,
I received my S9, did some engraving tests and everything worked perfectly.
Yesterday I bought some wood to do other tests, such as cutting, but then the computer does not connect to the machine.
In LaserWeb it appears Machine connected, after about 5 seconds:
No supported firmware detected.
Closing port /dev/tty.usbserial-210
machine disconnected
Does anyone know what can it be? Is there any test to do to find out where the problem is?