“Just bought a Samsung Q7 4K. I also bought a Samsung 4K blue ray. I can only watch the blue ray in 1080. Any higher and the screen goes black after 30 seconds. Then it pops up source not found. Tried 4 times with the same problem occurring.”

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• Upgrade your HDMI cable(s) to 4K compatible. It'll make a difference.

  Answered by Doug 7 years ago

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• Sending a single cable to the tv 4K slot and switching inputs through the box works perfectly.

  Answered by George 7 years ago

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