i tried to install the stable (4.2.3) and beta (4.3.0) CubeSolo ardupilot firmware. i tried manually using pixhawk.py as well as the method you described above.
in both cases it seems like the controller (artoo?) is not able to get a radio fix. i tried factory resetting the controller, clearing params on the pixhawk, etc. the only solution i could find was to revert to ardupilot.apj version included with OpenSolo4 release.
is it possible for the ardupilot firmware to become incompatible with the controller? is there some other important step i’ve missed?