http://www.mediafire.com/file/l8ahm...5.arm-9.0-devel-20180519214344-b2dc839.img.gz
- burn the img to SD using LibreELEC USB-Creator
- delete dtb.img from the root of the SD card
- copy gxbb_p200_2g_minix_neo_u1.dtb from "device_tree" folder to the root of the SD
- rename gxbb_p200_2g_minix_neo_u1.dtb to dtb.img
- you should now have a root SD like this
- put the SD in the u1 and boot