Okay, so just to focus testing/debugging:
- Debian Jessie it nothing we further support, hence I'm not going to digging into this, as long as it is not an old system that was running Jessie since when it was still supported.
- Kernel 3.10 images is not something we can use, because Debian Stretch basically requires Linux 3.16, and we want Debian Buster. This was also the reason why we moved from Meverics old Jessie image to Armbian as basis.
- The current v6.22 Stretch image is up for a long time. So actually that should boot fine. Although I have no detailed download statistics but definitely would expect some more reports if that failed in many other cases as well.
- However we want Buster where possible, hence I would like to concentrate on the current Armbian Buster based image.
For you the current stable (Stretch) image works on SDcard? It is the same with the new Buster-based beta image?
I see now the following: https://www.armbian.com/odroid-c1/
Hence it is sad, but we have no acceptable chance to get this working currently. And I also don't believe that Armbian is going to invest much time to fix things for this device, since it is not even listed in their official devices list: https://www.armbian.com/download/?tx_maker=hardkernel
Found the thread where we discussed the Stretch image that time: https://github.com/MichaIng/DietPi/issues/2561
So yeah, no HDMI output indeed, and that seems to have not changed until now
. Also the issue is mentioned that reboot hangs with blue light and needs unplug cycle. This sounds like your boot issue, is it probably actually booting but then hangs on some initial reboot? Although there is no automated reboot done on current DietPi, as long as one does not enabled automated firstrun installs... And also this issue has been crossed through on Armbian product page
So what I derive from that is that we need to make the known issues clear on our download page as well. And I'll verify that correct serial console is enabled + local getty disabled, since no point in having this without video output.