

Radxa-Nio-12L uses EFI Boot via Grub with DeviceTree. To make use of it follow this Guide from Collabora to flash Uboot onto the UFS storage. Then you can flash one of the provided images onto a SD-Card and power on the SBC which will automatically boot into Armbian. Keep in mind the Boot order has UFS at first place so you need to erase any OS you have on on UFS to boot from a SD Card.
Hold power button for about 7-8 seconds to power the device up. Boot log: http://ix.io/1r19
Known problems: