I tried unsuccessfully to install LE (LibreELEC-S905.arm-8.2-8.2.3.1.img.gz) from micro SD but that was because i had the wrong 1GB device tree (gxl_p212_1g.dtb).
When i realised my mistake and used gxl_p212_2g.dtb, the device (a brand new Magicsee Iron 2GB/16GB S905X) booted up fine from the SD and i thought i'd cracked it.
But the boot up only goes as far as the welcome screen and locks: none of the buttons on the remote has any effect and i cannot choose 'next' or do anything except pull the power cable.
I tried resetting to factory and then uninstalling and reinstalling Kodi but the same thing happens every time.
Help, please!