You can download the image at:
Image is based on the MIQI image
More or less a proof of concept but .... working
1) Read and follow: XT-Q8L-V10 – Armbian - be careful to backup your android image if you plan to go back (I didn't back it up and lost it forever , but hey at least I got Libreelec to run)
2) grab the image above and burn it on a SDCARD
What works (I quickly tested):
HW acc at least for H264
Resolution up to 3840x2160p @ 25Hz
Audio via HDMI
Maybe more, just download and test - at least for me it's enough since I mainly watch IP TV and H264
What does not work:
REBOOT !!! - it actually shuts down the device, you will have to manually power on the device
Wireless - sorry, just pop a rtl8188eu and you are good to go
jock @ forum.armbian.com for the help with uboot, the Q8 defconfig and the Q8 device tree
ROCKCHIP for the uboot documentation at: http://opensource.rock-chips.com/wiki_u-boot
!!!! PS !!!!
AVOID balenaEtcher on MAC, honestly I wrote a lot of images with etcher in the past before balena and worked OK, now they just don't work for me and created a false sense of images not working.
I used the Disk Image Writer from a Ubuntu VM to burn the image.