I think the Pinebook Pro image works on the RockPro64. I wonder if you could try that, or other images for different devices.
Also I wonder if your SPI ROM has something on it. There are apparently Linuces that will write to that without prompting; and there are certainly U-boots that will boot Linux but not NetBSD.
Also I wonder if your SPI ROM has something on it. There are apparently Linuces that will write to that without prompting; and there are certainly U-boots that will boot Linux but not NetBSD.
