Hm, no reply up to now. I am a bit disappointed. The M4 is a real powerful and nice piece of hardware but without a fully functioning Android on emmc it is not of much use to me. Well, I knew it's a development board and that this means, some software has still to be developed .....

Same for me. Is there a solution? And what does recover mean? Erasing and formatting the emmc?

I found a "typec image" in the download section. How is this image transferred to the emmc? Via the USB C socket of the board?