Playback Issues - Audio/Video & Power

Help with audio & video playback issues, TV display type recognition & compatibility, HDCP messages, troubleshooting playback errors, advertisements, and resolving power issues.
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Level 7

Roku unable to play 4k files via USB port in back of Hisense TV

I have 5 examples of mp4 video file formats Roku can and cannot play

Small: 640x360, - Roku plays the video clip OK!
HD: 1280x720, - Roku plays the video clip OK!
Full HD: 1920x1080, - Roku plays the video clip OK!
Quad HD: 2560x1440, - Roku only loads video clip 1/2 way, them stops
Ultra HD: 3840x2160, - Roku only loads video clip 1/2 way, them stops

I want to show higher resolution videos to my clients. After all Hisense claims its TV's can produce video resolution of 3840x2160 which is 4K.

What is wrong with the Hisense USB port?  or

What is wrong with the Roku software ?

 

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