If your device is an S905X or S912 and you are on and everything works, do not upgrade. Later versions introduced "Amlogic-ng" (Next Gen) builds that break the simple DTB structure. You will likely lose WiFi, Bluetooth, and audio passthrough. Version 4.3 is the final "universal" build for cheap hardware.
If you encounter a "failed to mount cores" error during install, try using the slow eMMC DTB file and renaming it to DTB.img . emuelec 4.3
: One of the most praised features is the robust handling of external storage. Users can host their massive ROM libraries on external hard drives or NAS systems, with EmuELEC 4.3 managing the mounting process seamlessly upon boot. If your device is an S905X or S912
: Optimized for modern television displays, EmuELEC 4.3 provides smoother scaling and 4K output on compatible devices like the GD20 Game Stick . Version 4
Noted for its updated "game chip" specifically tuned for EmuELEC 4.3, this model is frequently featured in enthusiast reviews for its consistent frame rates in 3D titles. RS5 Mini Console