After putting the patched Koboroot file in a Aura H2O 2nd gen, it booted into XCSoar but with a vertically flipped screen.
I enabled (I think) USB OTG, then rebooted - which bricked the device.
This seems to be a known issue on some XCSoar versions http://gethighstayhigh.co.uk/kobo-self-build/
After putting the patched Koboroot file in a Aura H2O 2nd gen, it booted into XCSoar but with a vertically flipped screen.
I enabled (I think) USB OTG, then rebooted - which bricked the device.
This seems to be a known issue on some XCSoar versions http://gethighstayhigh.co.uk/kobo-self-build/