Tested NanoPC-T4 dtb from image 20190925 KODI-18 and:
Ethernet = Working
WiFi = Working
Bluetooth = Working
HDMI & Sound = Working, [email protected] (my TV max)
eMMC = Sorry, not using your image so can't test this out. JerryPenguin will comment on this.
How's 10bit HEVC & 10bit x264 performance on your images?
Edit 1: Day 2 of testing you dtb. Why do I think with your dtb, there is a 70% less caching issue on playback. JerryPenguin , can you test it too please