CEC steps : Press Home on your Roku remote. Scroll and select Settings. Select System. Select Control other devices (CEC) Scroll and highlight System audio control. Check the box to enable System audio control. Highlight 1-touch play. Check the box to enable 1-touch play. Help Library: [LG OLED TV Settings] I want to enable Auto Power (HDMI - CEC). Learn how to use, update, maintain and troubleshoot your LG devices and appliances. Make sure that Digital sound out is set to Passthrough. Go back to live TV mode and reactivate eARC. Also, make sure that Simplink (hdmi-arc) is active in the Connection/device connection settings options. I find that PCM gives full auto switching on my tv/AV amp and correct routing of audio via arc. On my Sony A1 volume controls worked flawlessy. If you disable the SimpleLink function you'll be able to control your Xbox via the IR of the LG remote, but obviously all the HDMI CEC functionalities will be disabled. I hope that the upcoming Xbox update that should bring more efficient CEC support could fix this issue, otherwise I don't know The LG OLED48C1PUB is a television with a display diagonal of 48 inches, offering 4K Ultra HD resolution of 3840 x 2160 pixels. It utilizes OLED display technology, which provides high-quality visuals with vibrant colors and deep blacks. The screen shape is flat, providing a consistent viewing experience from any angle. First, you need to connect your simplink HDMI output port to your LG smart tv’s HDMI port. with help of the HDMI cable. After that, take your remote control and press on the Home icon button and select the more button (It is showing 3 vertical dots at the top right of your screen). After that, goto on General option and select the SIMPLINK Ensure the Anynet+ option is enabled in your TV: Anynet+ (HDMI-CEC) > Settings > General > External Device Manager > Anynet+ (HDMI-CEC)) and see if Anynet+ (HDMI-CEC) has been set to On. Check if Fast Boot and Deep S4/S5 are disabled in BIOS Setup and use the HDMI ports on your TV. Ensure your BIOS is up to date. HDMI-CEC (known as Anynet+ on your Samsung Smart TV) stands for HDMI Consumer Electronics Control. This feature allows devices connected through HDMI to communicate with each other. In other words, you’ll be able to control multiple HDMI devices using only your Samsung Smart TV’s remote control! For instance, you can turn on a soundbar or Go to Settings>Option>Set the Universal Control. If there is already a setting for your PS4 HDMI port select "Cancel Setting" to delete this profile. Otherwise just back out of that menu. Now we need to enable SimpLink. This was hidden in the apps list and not in Settings. Open the app and select SimpLink Setting. I show you how to turn on or off the HDMI-CEC ARC / eARC (HDMI port to send audio from TV to your sound bar or AV receiver) on an Amazon Fire TV. Hope this h 3bKo.