(07-13-2020, 06:12 PM)AstroCEO Wrote: It just blinks orange and does absolutely nothing with eMMC switch disabled, or even with it removed entirely. It only boots period with eMMC attached.
My guess would be that uboot on SPI isn't being used, or may not have flashed successfully, then. Without or without the emmc it should be able to boot SD or USB first.
If emmc is installed and you insert a bootable SD, what does it do?