LibreELEC-AMLGX.arm-9.95.1-box.img.gz and also *10.0-nigthly* do not boot, they only freezes Box.
I've tested nigthly with chainload: Image booting, only sound works, screen is black.
I've build uboot for chainload from 2021.04
I've got no idea how to patch u-boot.bin to enable screen.
Other u-boot.ext from balbes150 could not handle lzo compressed Imgs.