If all other functions works, except channel buttons, your remote control need cleaning. Check the site liked here for more details about how to clean a remote control. Pull up older posts there. Do a search by entering thebrand name to your deviceby its search box at top right of the display window, because, posts are not arranged in alphabetical order, but by brand name first.
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If all other functions works, except channel buttons, your remote control need cleaning. Check the site liked here for more details about how to clean a remote control. Pull up older posts there. Do a search by entering the brand name to your device by its search box at top right of the display window, because, posts are not arranged in alphabetical order, but by brand name first.