Thank you very much for this great tutorial. I have still problems with copying SD to eMMC. I run the install to eMMC script. After it is completed I restart the box, and it just stays on splash screen. When i plugged in SD it also didin't booted. I've inserted card to PC and it was empty. I burned linux ISO to SD again and it's starts again from SD. How to force it to boot from eMMC after installation? (I didn't had any android/windows related files/folders on SD when installing to eMMC and also edited both files with good .dtb file).