I download Q10.0.0_2.4.0_AUTO_DEMO_8Q / automotive-10.0.0_2.4.0_image_8qmek2.tar.gz and flash on eMMC with xen features (spl, dtbo and bootloader, vbmeta images) via UUU.
I don't see any outputs in DEBUG consoles, looks like board doesn't boot at all.
Default and multidisplay configurations works without any issues.