Yes i instalation in instruction
Maybe do you hawe any ideas?
The firmware is already on the Arduino. No need to upload it again.
And how connect the groundcontrol i choise my com8?
GroundControl will not work with the Due board. You should use Makerverse. https://youtu.be/HsnEQgeWrmI Yes, COM8 seems to be the port you have the board connected to. Set 38400 Baud.
Edit: Please put that heat-sink back on that fell off Heat Sink
The boards come with all firmware preloaded. Please email me at email@example.com so we can get you up and running.
Crisma@makermadecnc.com i write too this email, but when you can answer mee?