sad news
we can bury our cb2 boards.
Old, crap stock android 4.x. Armbian - non official supported. I try Lakka, but it even not boot. LE is the best that i try.
7 years for kernel support - hw decoding and hdmi-audio. No one have time and want to fix code for old chip support.
When and if there is a volunteer, the A10 / A20 will fall further behind technology.