I am good with 1.1.0, updated to 2.0.3 - 2.0.3c recently then suffer from 5G wifi connectivity and micro shutter(2.0.3) or video/sound unsync(2.0.3c) problems.
Also cannot watch uhd bluray rip on any firmware - get error when try to read m2ts file. same file can be read by panasonic UB900 player.
I guess Himedia team is busy support their thousand dollar H1000 now. Q5/Q10 becomes a low priority