ok. I have 5 cubieboard 1. Not possible memory card for every one.

Nobody knows, nobody tried. Give it a shot. There is only one way to find out.

Great! I will start to tinker around with armbian.

You can always restore to android. Armbian is providing kernel boot.img and a rootfs image, which will not harm flashing other os.

a friendly ping to maintainer of this device @amazingfate 😀