Restore Android on eMMC

Hello everyone,

how can i restore Android to eMMC in a same way as its coming from factory?
I wiped eMMC to load Armbian from SD. Its worked fine, but now id like to get Android back.
Was trying to write Android image which is publishe at https://dl.radxa.com/zero/images/. But no luck, also was trying to write uboot.bin. After power on its stuck on black screen. No logos or other stuff.

Is there any documentation how to install Android to eMMC?

ok, guys, feels a little stupid, but i got it, just download USB Burning Tool and burn img.