@Terry @Gouwa
which u-boot should be flashed in order to boot directly to micro SD / USB which have @kszaq libreelec image?
I found an older post where you wrote ubuntu-rom-for-khadas-vim :
Erase the eMMC and Khadas VIM will boot from the SD card automately.
Force enter into MaskRom mode first, then Khadas VIM will try to boot from SD card.
Long press the Function button to boot from SD card.(Need upgrade to the latest ROM first)
I did erase eMMC and on reset I just see this:
GXL:BL1:9ac50e:a1974b;FEAT:ADFC318C;POC:3;RCY:0;EMMC:0;READ:0;CHK:AA;SD:0;READ:0;CHK:AA;USB:8;
it was an Android Nougat u-boot/image before erase command.