I installed ubuntu following instructions, on a 128GB SD card. Plug it into the device, turns it on, but nothing boots. Screen remains black (as if in Maskrom mode).
I tried installing debian on the sd card, same results.
Any ideas how to fix this?
edit: after installing debian, and then ubuntu on the eMMC, booting completely bypasses sd card, and boot directly into ubuntu (eMMC), and does not get ‘stuck’ on the black screen.