How to Write an Image to the eMMC Module Tutorial

[MarkHaysHarris777]

I have this situation z4v4l was talking about.
I put the image onto emmc with dd without using cable and jumper and
it looks ok for me. When sd is put in, it boots from sd and if there is no sd card in then it boots
from emmc. I got the impression you are saying that this shouldn't work and now I'm wondering
why it does work. Or did I misunderstood your post to z4v4l?

What you are describing is normal for the Pinebook, but not for the Rock64;  because the SD has boot priority over eMMC in the Pinebook.   The eMMC has boot priority on the Rock64 ( at least its supposed to ). 

You can put the image on the eMMC ( Rock64 ) with several techniques.  This tutorial is just ONE way that is straight-forward and usually works with the least amount of worries.  Sounds like your system is booting and running fine.