so far so good
except few thing that need to workout

1. i finally found the washout, the Black color font is splitting out the Red shadow.
this only happen when the resolutions is set to pc 4K resolution. (4096 × 2160).
fyi the standard 4K resolutions for tv is actually 3840 × 2160, so not a problem...

but i still managed to correct this problem, in HDMI2.0 settings the default "Chroma Subsampling"
is set to 4:2:2/4:4:4... which is obviously is not support by the tv.
after i correct it to 4:2:0, the washout is gone at the resolutions (4096 x 2160)

2. in Android TV Home Screen and all the google apps,
the default resolutions is set to FHD (1920 x 1080).
This cannot be corrected currently....
because the tv need to be ROOTed so we can edit the build.prop to enable 4K
... mean i cant watch youtube/kodi in 4K!!!~     

3. the voice remote control buildin's mic is not really good compared to phone.
i installed Google TV Remote Control on my phone
and test the speech recognition, i able to get 9/10 accuracy...
ps: i also tested on Cantonese speech recognition, not bad  :thumbsup:

4. unable to set HDMI brightness, it only affect the brightness at Google Apps... eg YouTube/Kodi/iflix/netflix
my Astro channel is very bright 

if not mistaken, u need to set the voice recognition to
Hong Kong (Cantonese)

u set the speech recognisation at the TV->Settings, NOT at the phone

The phone app "Android TV" will record your voice and transmit to TV and do the processing there