Hey Auxbox good to see you here and trust you are well mate. With your known technical knowledge of compiling Linux based builds I am certain you can be a great help here in this forum my friend.
Yes that is the correct .dtb device tree file for S905X boxes though not all makes and models will be fully compatible. I am not 100% but have3 a freind on here who you will know of old who uses a NExbox with LE8 but I believe it is an S905 box not the newer S905X version that you have.
Personally I use the very nneat and fast and compatible Beelinkg MXIII II S905X box and other than having to installtointernal twice it is excellent and works brilliantly wiht both the MM and Nougat kernal LE8 builds but note I do not have a UHD TV so can only test up to 1080 res of course.
Hey Ray, have you moved to these builds now?
Everything works really well with just the very odd crash. Kszaq has done some really good work to bring Libreelec to these devices.
This latest build using the Marshmallow kernel has a darker picture in my opinion which is not that bad. Loving the addition of the LibreSSL libraries as i can now use the catchup tv addons in my country. Other than the this slow wifi problem on my device, which is hardly noticeable except the odd buffer while watching a movie, i'm really happy with it.