To control a set-top box with an LG TV remote, first ensure HDMI-CEC is enabled on both devices (LG TV: Settings > General > External Device Manager > HDMI-CEC/Simplink > On; set-top box: find its CEC option in its settings and enable it).

Connect the STB to the TV via HDMI, then select the STB as the active input. With HDMI-CEC on, you can use the LG remote to power the STB on/off , navigate menus, and control playback using the remote’s directional pad and OK button; in some cases you may need to choose the STB as the target device in the LG remote’s setup (or switch to the STB input first). Note that exact labels and features vary by model, and some functions may be limited if the STB or TV firmware doesn’t fully support CEC. If full control isn’t available, you can still use the LG remote for basic navigation and rely on the STB’s own remote for advanced features. Suggestions: 1) Update firmware on both devices, 2) Recheck HDMI cable quality and port, 3) Check if your LG remote has a dedicated “STB” or “TV/Set-Top” mode.

How to Control Set Top Box with LG TV Remote

🔧 Setting up HDMI-CEC on LG TV and STB; 📺 Connecting the STB to your LG TV via HDMI; 🎛️ Using the LG remote to power, navigate, and control playback; 🧭 Selecting the STB as the active input or target device; 🛠️ Troubleshooting common CEC issues; 🔄 Firmware and cable checks for reliable control.

Important

Few function may not support depends on the connected device type.
If your Set Top Box (STB) manufacturer name is not found in listed device then LG TV will not support this feature.
This application support only with LG webOS Smart TV.
This feature supports only with the devices which are working on IR (Infra-Red) frequency remote controller.

You Can Control Set Top Box with LG Smart TV Remote controller

Follow these steps.

Step 1. Universal Control Setting Menu

Universal control setting menu can be find out from TV menu depends on TV models

TV models up to 2018 year --> Go to Device Connector App in front screen of TV (launcher bar)
TV models of 2019 & 2020--> Go to Device Connection in Connection Setting menu of TV
TV models of 2021--> Go to External Device in General Setting menu of TV

Step 2. Device connector app/ setting

After opening the Device connector app/ setting, select the device that you want to connect (Set top box, Audio system etc shown in list)

Step 3. Input in your selected device

Select the correct input in your selected device is connected (HDMI/AV etc.)

Step 4. Connecting device

Please make sure your connecting device is placed within 1 meter away from LG TV

Step 5. Select the correct device manufacturer name

Select the correct device manufacturer name from next window (search option also available)

Step 6. Use the Text Keys/Function

Use the text keys/function shown in next window to ensure TV remote is responding with your selected device. If TV remote is not responding then change remote control type and try until it works)

Step 7. Select done

Select done once you finished the set up and exist from page, Now you can use your TV remote controller to control your connected device's functions.

You may also click given link to know how to control Sound bar or home theater with LG TV remote: https://www.lg.com/in/support/video-tutorials/CT20150005-1443087276758

Frequently Asked Questions (FAQ)

Q. What if the LG remote can’t control the STB even after enabling CEC?: A. If control still fails, try a different HDMI port, replace the HDMI cable, and update firmware on both devices. Verify the STB’s CEC setting is enabled and that the LG remote has the STB mode or TV/STB switch enabled. If needed, use the STB’s own remote or a universal remote as a fallback.

Q. Can I control a set-top box with the LG TV remote via HDMI-CEC?: A. Enable HDMI-CEC on both devices, connect the STB to the LG TV via HDMI, and select the STB input. The LG remote can power, navigate, and control playback if the devices support CEC.

How to control set top box with LG TV Remote