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LG TV - How to Test an HDMI cable connected to my LG TV?

  • Troubleshooting

At a Glance

HDMI cable test is available on products running on 2019 webOS or later.

Try this

Press and hold the [9] button on the TV remote for more than 1 second.

➔ The [9] button is a hotkey to quickly access the [Quick Help] screen.

Image of entering the Quick Help menu by pressing key 9 on the remote control

Go to [Quick Help] in Settings.

➔ Open the TV Settings menu and select the menu items as instructed below.

[2022 WebOS22], [2021 WebOS 6.0] or later

Press the Setting botton button on the TV remote and select [All Settings] → [Support] → [Quick Help] → [Check Items] → [Check The Status of TV] → [Check RF/HDMI] → [Start Diagnosis] → [Learn More].

[2020] Checking HDMI with [Quick Help] in the Settings

Press the Setting botton button on the TV remote and select [All Settings] → [Support] → [Quick Help] → [Check Items] → [Check The Status of TV] → [Check RF/HDMI] → [Start Diagnosis] → [Learn More].

1. Turn on the TV and press the [Settings] button on your TV remote.
Select [All Settings] in the [Settings] menu.

Image that enters all settings by pressing the setting button on the remote control

2. Select [Quick Help] in [Support].

Running the Quick Help menu in Support

3. Select [Check items] in [Quick Help].

Image of selecting check items from the Quick Help menu

4. Select [Check The status of TV] in [Check items].

Image of selecting Check the Status of TV from Check Items

5. Select [Check RF/HDMI] in [Check The status of TV].

Image of selecting Check RF/HDMI in Check the Status of TV

6. Select [start Diagnosis] in [Check RF/HDMI] and then select [Learn More].

Image to test RF/HDMI status by pressing Start Diagnostics
Images to select Learn More after checking

[2019] Checking HDMI with [Quick Help] in the Settings

Press the Setting botton button on the TV remote and select [All Settings] → [General] → [About This TV] → [Quick Help] → [Check The status of TV] → [Check RF/HDMI] → [Start Diagnosis] → [Learn More].

1. Turn on the TV and press the [Settings] button on your TV remote.
Select [All Settings] in the [Settings] menu.

Image that enters all settings by pressing the setting button on the remote control

2. Select [General] and then [About This TV].

Image of selecting About This TV from the General menu

3. Select [Quick Help] in [About This TV].

Image of selecting Quick Help on About This TV

4. Select [Check The Status of TV] in [Quick Help].

Image of selecting Check the Status of TV in Quick Help

5. Select [Check RF/HDMI] in [Check The Status of TV].

Image of selecting check RF/HDMI on Check the Status of TV

6. Select [Start Diagnosis] in [Check RF/HDMI] and then select [Learn More].

Images to select Start Diagnosis from the Check RF/HDMI menu
Image to select Learn More after diagnosis

This guide was created for all models, so the images or content may be different from your product.

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