Somehow my ASIAIR Plus seems to have become bricked, turned it off normally yesterday and today it won't start. By that I mean the SYS light stays permanently on while booting, no blinking at all. No matter what kind power supply or button combination I use it's the same. I did dive a bit deeper using rkdeveloptool, the gpt table seems to be intact, still readable as well as the partition's contents, but the device seems to boot in maskrom mode. Switching to loader mode doesn't help, it just fails to boot and goes back to maskrom, I guess the onboard firmware is corrupted and non bootable. I'm not familiar with the Rockchip platform, can't debug it the same way I could with the CM4 variant.
@Tech@ZWO would you mind sharing the full firmware image and step-by-step instructions to flash the eMMC?