Hello All,
- I continue to make an update of my old review on the A10.
- I am not an audio-visual expert and I write what I see on the screen
- I will re-check if the A10 / A5 always meets the specifications of HDMI 2.0.
- I will do new tests tonight

I will do tests with the following parameters :
YcBcR / RGB 4.4.4 / 10Bit / HDR AUTO / with UHD Demo/ UHD movies (BDMV) having a frequency below 30HZ
YcBcR 4.2.0 / 10Bit / HDR AUTO / with UHD Demo having a frequency above 30HZ
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All my videos are on my NAS
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Note:
My receiver Onkyo 656 takes a few seconds to switch to the right frequency, It's almost instantaneous when I plug the Egreat directly to my Sony TV.
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When they announced that UHD movies would be in 4.2.0 10Bit, many people were disappointed to see that they had chosen the lowest compression quality, many people would hope to have ycbcr 4.4.4 10Bit with the new UHD movies specs, 
The reason must be the gain in storage space
The 2160p60 YcBcR 4.2.0 10Bit is only available above 30Hz.
Do not forget either you have to manually change the parameters if it is a 1080p or a 2160p, this is due to a limitation of android OS 5.1 if I remember correctly, you can
correct me in case of error on my part
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to be continued....