Failed to detect port to upload to. MP1.3.74, Fedora 33, USB via ttyACM0

Running MP 1.3.74 on Fedora 33. Connecting to a MiniPix via ttyACM0 without any issues.

I’d like to update the firmware on the MiniPix. I disconnect the MavLink connection. I select the Plane 4.0.9 Official firmware. When I confirm the upload, I get a “Failed to dected port to upload to” error.

The MiniPix is running Arduplane 3.9.0-dev.

Where do I go from here ?

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I am there too. except MP freezes. Will have to try another computer.

Ok, I moved to my son’s laptop and it worked immediately.