I can read the card on a pc, and tried 4 other cards. When sending commands M20, there is no feedback at all, the message area stays blank.
There is no reaction when trying to move the nozzle. The nozzle temp reads 0, it will allow me set the temp but there is no reaction after doing so.
I have been trying to connect to the board on my pc, but Windows 10 no longer shows com ports, they are now usb ports. So Yat shows no com ports available. If switched to usb ports in Yat it lists all my usb ports and whats connected to them, except it doesnt show the Duet when its plugged in.
I should mention that before it stopped working, the nozzle was at 190 deg and i was extruding some filament, then it suddenly shut down as it would with a heater fault except there was no message, it hasnt worked since.