I have a RK3228A TV Box which is able to properly boot armbian when flashed to its eMMC (no rknand) . However I don't use Armbian much often, probably a maximum of two to three times a month. I want to keep stock Android on eMMC, for video playback on the YouTube app is much faster compared to in firefox and Android has proper remote support which Armbian lacks. I tried flashing the armbian community image on the sdcard but the device didn't boot from sdcard unless the eMMC was wiped. I found that multitool is able to always boot from sdcard irrespective of whatever is in the emmc.
After doing some research on the multitool build process, I think I need a properly configured idbloader, uboot and tee binary and then place them at proper offsets in the image, however the Armbian image already contains different data at those offsets.
So, how can I build an Armbian image that can be booted from sdcard without wiping the eMMC ?
