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your Videos need to be encoded very specifically to view HDR through the USB. The Vizio Web site has that Info in there FAQ section
Sorry, there was a problem. Please try again later.It might be difficult to play HDR 4K movies through USB as it might be too slow to transfer all the data. Especially because the TV only has USB 2.0.
Sorry, there was a problem. Please try again later.This may be dependent on the format of the file and what other files are on the drive. Please contact our customer support at 877-878-4946 for assistance with your television.
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