In order to boot Armbian from VIM3 with pre-flashed OS on eMMC you need to: Download Khadas Rescue tool for VIM3 and flash it to a spare SD card Insert SD card, attach USB keyboard + monitor or a serial console and boot into Khadas Rescue Tool Choose: Advanced -> eMMC -> Fast erase. Go …
Serial console: Blue color line: Tool Pin TXD, orange color: Tool Pin RXD, black: Tool Pin GND
To be able to boot Armbian SD card image and install Armbian to eMMC, use one of the methods to boot into upgrade mode. If you have most recent board revision (1.4 ->) then you only need to quickly press the function key (middle) 3 times in 2 seconds. Release and boot will proceed from …