When connecting a 4K Ultra High Definition (UHD) device such as a 4K UHD Blu-ray Disc® player to the 4K Android™ TV, make sure of the following:
- Make sure that the TV supports the HDR format by checking the Applicable Products and Categories section at the bottom of this article.
- Make sure that you are using a high quality, high-speed HDMI® cable.
NOTE:  Go to Parts and Accessories.
Set the HDMI signal format setting on the TV to Enhanced.
- Using the supplied remote, press the HOME button.
- Select Settings.
- Select External inputs.
- Select HDMI signal format.
- Select Enhanced format.
NOTE: The 4K UHD player may have to be AC power cycled after adjusting the HDMI Signal Format to Enhanced.