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On your UHD TV, go to Menu >Screen >Press arrow buttons to select the ratio type >
Choose automatically display the entire screen.
6.5 The remote control does not work
Make sure the batteries are good and they are inserted correctly in the remote control.
Make sure no objects block the path between the remote control and the signal sensor
area on the product.
Make sure the distance between the remote control and the box is no more than 5 meters.
Check the batteries for power, and if exhausted replace the batteries in the remote
control.
6.6 No picture or sound
Check if the Audio/ Video output connection from the product to TV correctly.
Press the MUTE button Turn TV on.