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Be sure the HDMI cables are rated for 4K video or higher and that they are snugly fitted. If using 4K cables doesn't fix the issue, and other 4K sources play properly through the same TV input, then a return may be in order.
Sorry, there was a problem. Please try again later.Hello. We advise making sure that the firmware version of the Blu-ray is the latest one. However if the outcome will not change, please contact the Support Team via Live Chat on the Panasonic Website, Contact Us option, Mon-Fri, 9am-5pm EST. -G
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