Black & White Picture
Normally a black and white picture is an indication of the cables being mismatched or connected to the wrong input. If the screen appears in black and white when a set-top is connected, it may be due to a poor HDMI cable connection. If the screen appears in black and white only in certain channels, it is likely an issue with the broadcast signal rather than the TV itself.
Causes and Symptoms
- The HDMI connection to your set-top box is bad.
- The broadcast signal is unstable.
Wait! Find out more
There is an [Accessibility] function in your TV that can enable black and white display during TV operation. (Products released in 2020 or before with WebOS 5.0 or later)
If the [Grayscale] option is enabled in [Accessibility] in the TV Settings, disable it.
Starting with [2021 WebOS 6.0] TV models and moving onward (newer models) - How to change the Accessibility option
Press the

button on the TV remote and select [All Settings] → [General] → [Accessibility] → [Grayscale] → [Off].
[2020 WebOS 5.0] How to change the Accessibility option
Press the

button on the TV remote and select [All Settings] → [Accessibility] → [Grayscale] → [Off].
Adjusting the contrast and color saturation can also affect the color output.
Switch the Picture Mode to the Standard Picture.
To reset the picture and sound settings, press the [Mute] button on the AI (Magic) remote control three times in a row.
Try this
Have you checked the HDMI cable?
➔ Try reconnecting the HDMI cable to the set-top box.
Turn off the power of the TV and the set-top box, disconnect the HDMI cable on the back of the TV and the set-top box, and reconnect it.
Make sure that you use an HDMI cable version 2.0 or later.
Check the connections
Before troubleshooting can be started, you will need to determine which type of cables you are using.
Press the Enter or Info button on the LG Remote Control to determine the current input.
Is the TV currently on the Component Input?
If so, check the component connections on both the output device and the input of the TV. The colors should match. The component cables should have a total of 5 color coded connectors and they should be firmly connected to the output and input connection.
- For Video: Green(Y) / Red(Pr) / Blue(Pb)
- For Audio: Red(R) / White(L)
Check for loose cables
Sometimes a loose connection can cause a black and white picture so you will need to check each connection on the back of the TV to ensure it is firm and secure.
You will also need to check the output device’s cables to ensure they are also firmly connected.
Check other inputs
Check the various inputs on the television to see if the problem occurs with multiple inputs.
- If so, check the picture mode settings to ensure the color settings have not been changed.
Select a Picture Mode that does not say User beside it. You may also need to perform a Picture Reset. If not, there could be a problem with the cable itself that is being used.
Try using new cables
Connect the output device to the television with a different set of cables to determine whether or not the problem is with the output device itself.
- If the issue occurs with the different set of cables, the issue is with the output device itself
- If not, the cable being used to connect the two devices may be defective.
This guide was created for all types of Home Entertainment Flat Panel Display Panel Smart Television models. Images or content shown here may differ from your product.