The firmware on the Himedia site should be the same as here.
2.0.4 doesn't appear to be on the HiMedia site yet (http://www.himediatech.com/support.htm).
Where did you get it from?
According to your quote last month. There are two updates. One from Himedia and the other is HiSilicon targeted to the HDR Aspect Ratio. Now the 2.0.4 already fix the HDR Aspect Ratio. Then what is the HiSilicon fix for? Will it come to fix something others? Will it possible that the Dolby Vision? Also how about the HLG.
I have another question about the TrueHD Atmos. Is the Q10 Pro can downmix it to 5.1 by setting the HBR to RAW 5.1? At the moment, my old 5.1 Pionner and the Sony X80D 4K TV do not have audio for any TrueHD Atmos sound track. My setting is HDMI - RAW, HBR - RAW 5.1. I don't use SPDIF. DTS has not problem for DTS-HD MA. I don't have DTS-X movie to test.
For the so call strange format VISIONPLUS HDR1000 at 4:2:2 chroma like the Rogue One. It can play at my MacBook Pro with MplayerX but not in VLC and Kodi also Q10 Pro. I think it is 12 Bit YUV 4:2:2 rather than the Mediainfo reported 10 bit. Another movie Indiana Jones And The Last Crusade has 10 Bit YUV 4:2:0 has no problem in Q10 Pro.
Sorry I may have too many question in one post.
Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : @L5@High
Codec ID : V_MPEGH/ISO/HEVC
Duration : 2h 13mn
Bit rate : 39.8 Mbps
Width : 3 840 pixels
Height : 1 608 pixels
Display aspect ratio : 2.40:1
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) fps
Color space : YUV
Chroma subsampling : 4:2:2 (Type 2)
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.269
Stream size : 37.2 GiB (86%)
Title : TEKNO3D.com Rogue One: A Star Wars Story 4K VISIONPLUSHDR-1000 4:2:2 Edition
Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5.1@Main
Codec ID : V_MPEGH/ISO/HEVC
Duration : 2h 6mn
Bit rate : 35.4 Mbps
Width : 3 840 pixels
Height : 1 632 pixels
Display aspect ratio : 2.35:1
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) fps
Color space : YUV
Chroma subsampling : 4:2:0 (Type 2)
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.235
Stream size : 31.3 GiB (90%)
Title : TEKNO3D.com Indiana.Jones.And.The.Last.Crusade.4K.HDR.HEVC.10bit.BT2020.DTS.HD-MA-VISIONPLUSHDR1000