If you are seeing a "No Signal" message on your LG TV screen, it means the television cannot detect an incoming video broadcast or feed from your selected input source. To fix this, first use your LG remote to press the Input or Source button and verify that your TV is set to the exact port—such as HDMI 1, HDMI 2, or AV—where your cable box, gaming console, or streaming device is physically plugged in. If the correct input is selected but the message remains, inspect the back of the TV to ensure the HDMI cable is firmly inserted into both ports; try unplugging it completely, blowing out any dust, and plugging it back in tightly. If that fails to restore the picture, the issue may be a temporary software glitch or an external device freeze, which you can resolve by performing a power cycle. Disconnect the power cords of both your LG TV and your connected device from the wall outlet, wait for 60 seconds to drain any residual power, then plug them back in and turn them on to force a fresh handshaking signal between the hardware.
➔ Press the External Input button on the TV remote to change the external input mode.
Press the External Input button on the TV remote and select the current broadcasting program.
➔ If the cable connected to the external device is not in good condition, the No Signal message may appear.
- Turn off the power of the TV and external device, disconnect the HDMI cable on the back of the TV, and reconnect it.
- Also, remove the HDMI cable from the external device and reconnect it, if feasible.
- It is recommended to use an authentic HDMI cable to connect your TV with the external device. (Version 2.0)
If the external device is connected via a Component cable, reconnect the green, blue, and red cables.
※ An HDMI cable is preferred to a Component cable, as it offers superior picture quality and ease of connection.
➔ Run Auto Channel.
Press the button on the TV remote and select [All Settings] → [Channels] → [Channel Search] → [Auto Channel] → [Start].
① Turn on the TV and press the [Settings] button on your TV remote.
② Select [All Settings] in the [Settings] menu.
③ Select [Channel Search] in [Channels].
④ Select [Auto Channel] in [Channel Search].
⑤ When the channel search is complete, check the number of discovered channels.
If there are no or only a few channels discovered, please contact your property management office or broadcast service provider.
This guide was created for all models, so the images or content may be different from your product.
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