@kengoodhope said in Duet3 6HC unable to connect to SBC:
Is it possible I can get an RMA?
Yes provided we can identify the problem.
You say you've updated the firmware on the board. How did you do that and what firmware did you use?
Does the board respond to commands via USB terminal? Can you send M122 and copy paste the results?
Have you tried setting it up in standalone mode yet?
https://docs.duet3d.com/en/User_manual/Overview/Getting_started_Duet_3_MB6HC#getting-started
This will at least let us know if the board is alive or not.
If it is, we can try and gather some information from the SBC side to see what is actually happening.
https://github.com/Duet3D/DuetSoftwareFramework/wiki/SBC-Setup-Guide#increasing-log-level