So I was trying to change the DNS on the Odroid when I realised I couldn't because) no interfaces were listed.
When I added one that started with 'et' (which I believed must be the ethernet port) and rebooted, I can now no longer access the device.
It shows up on my router as having an IP address, but it wont respond to any http or ssh requests.
If I were to pull the SD card, how could I restore the network interface section to its blank (auto?) status that appears to be the default for Odroid?