“When I try to use 4k the screen turns red .. I have a compatible cable.. I used the same cable for the tv but I can’t get 4k quality I’ve run it thru the xumo box and I’ve not used xumo snd results are the same ..”
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Hi David, To best assist you, please call us at 1-800-SAMSUNG, available daily from 8AM - 12AM EST. You can also visit the Samsung website and click on ‘Support’ for: • Live Chat • Manuals, Software, & Warranty Info ~ Samsung Advisor
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