The only solution is to do it as sns1081 suggested. Or you can try nano pi M6 dietpi IMG. That one works actually albeit with some glitches. I was never able to flash any of img from armbian directly. Images that actually works: rockchip Ubuntu (Joshua riek), but I read it's not maintained anymore (install via rkdevtool [Windows] or rkdeveloptool [Ubuntu, Linux mint doesn't work, didn't try other OS]. It supports VPU, that is you can watch 4K 60fps YouTube with few dropped frames (meaning that GPU/VPU drivers still not optimal, as android runs 8k). There is bredOS for rockchip3588 devices, which is arch based. If you're familiar with arch, it's easy. I kinda liked it as it boots from 90s BIOS style UEFI with clean and simple interface, where you can do some basic configs like changing .dtb and stuff :), but does not support you/gpu. Unfortunately all of OS'es installation done via mask ROM. Life would be much easier if it was possible to flash SD, insert into orange pi, copy OS to Emmc, change boot order to EMMC... Like you do in raspberry pi. What else? Btw building armbian or dietpi yourself bricks the device and then you need reflash it again. Will update if find anything else: haven't tried fedoras or SUSEs yet..