Unable to enable UHD on Samsung UE55TU7020

[RonEUK]

Trying to connect my SKY Q to my new Samsung UE55TU7020 TV and getting Error: UH021 

I been unable to find any menu to enable UHD ?

[Pugs1957]

 Have you enabled deep colour output on the tv's settings for the hdmi port you're using?

[RonEUK]

Have not been able to find any settings on the TV

However left the Sky Q menu even though no picture output and it seems to have done the job. 

[Pugs1957]

Great 👍