I purchased your product product last week through Amazon.  Out of the box the only option I had was 8 bits at 4:2:0 at 60hz which worked without a problem. In order to get it to work at 8 bits 4:4:4 60hz I had to turn on the HDMI UHD setting on my TV.  However, when I did that I got artifacts (white dots/snowflakes) on the screen.  Do you think the new firmware will help?