Hi there. I have MECOOL M8S PRO W (Amlogic S905W, 1GB ROM). I have installed LibreELEC on my device from USB flash memory and everything is fine. My problem is that I can't make it to boot from internal or boot from SD/USB but using internal memory. Whatever device tree I had used (gxl_p212_1g, gxl_p281_1g with different suffixes) I couldn't see internal memory (/dev/system, /dev/data).