I ran a test here, all working fine on my board (revision v1.1):
The only thing I believe it could be:
- ARMbian 5.25 (kernel 3.4.113) current, breaks EMMC detection on your board. Nothing we can do about that. I believe if you run apt-get update and apt-get dist-upgrade on the ARMbian image, issue should re-occur once 5.25 is installed via their repo (which we use).
You could try (if its disabling EMMC when SD is plugged in):
- Load up ARMbian with lower version on SD
- Write to EMMC as per: EDIT: REMOVED OBSOLETE LINK