You dont need the device tree for this box and forget the remote method to restart. I have the same box (with 1gb ram) and i have now libreelec installed. I have used a micro-sd card, no usb.
1. Write this image to sd card: LibreELEC-S905.arm-8.2-8.2.0.1.img.gz
2. Start the box and then insert the card.
3. Take a toothpick and stick it at the bottom side of the box (there is a very little hole)
4. Unplug the power plug and back, now start the box with libreelec boot screen. (when you see the libreelec picture, you can release the toothpick and the box started again with libreelec)
Thank you man, you are great
It worked, and holy #&%$ Kodi on LibreELEC is so much smoother than on Android! Its a difference like night an day.