“When I installed a Roku stick to my new 77 LG OLED, the Roku will not control the sound consistently and this screen keeps appearing (see attached photo). I tried a number of different suggested resolutions, and nothing has worked.”
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Regrettably, there is no attached photo showing the screen that appears on your LG 77" Class C5 Series OLED evo AI 4K UHD Smart webOS TV (2025), Model # OLED77C5PUA. You should be able to configure the Roku remote within the Roku menu (Settings > Remotes & devices > Remotes > Set up remote for TV control) to enable Infrared (IR) or HDMI-CEC volume control, but if it is not controlling the sound consistently, that will require some troubleshooting to determine what the issue is. You can either contact Roku Support for troubleshooting assistance or contact our Customer Support on social media (Twitter, Facebook, Instagram, YouTube), using our handle @LGUSSUPPORT...^Ivan.
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