Hello
I'am facing the same problem on my odriodc2 board. Installed 2 times according to the instructions given in post #6.
16 GB eMMC card setup with microSD Card Reader from hardkernel.
Unfortunately, i don't have a serial adapter to provide detailed boot logs.
Currently, i'am trying to set the eMMC up with nand-sata-install script. See wether it makes any differences.
regards
level-one