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How to fix auto brightness issues on LG A1, B1, C1 and G1

When using your LG A1, B1, C1 or G1, you may notice that the brightness level keeps randomly changing. You can check out this troubleshooting guide at Seeking Tech to see how you can fix these auto brightness issues.

This tutorial should cover all screen sizes of LG’s 2021 A1, B1, C1 and G1 series, which include the following model numbers:

  • OLED48A1AUA
  • OLED48A1PUA
  • OLED48C1AUB
  • OLED48C1PUB
  • OLED55A1AUA
  • OLED55A1PUA
  • OLED55B1PUA
  • OLED55C1AUB
  • OLED55C1PUA
  • OLED55C1PUB
  • OLED55G1PUA
  • OLED65A1AUA
  • OLED65A1PUA
  • OLED65B1PUA
  • OLED65C1AUA
  • OLED65C1AUB
  • OLED65C1PUB
  • OLED65G1PUA
  • OLED77A1AUA
  • OLED77A1PUA
  • OLED77B1PUA
  • OLED77C1AUA
  • OLED77C1AUB
  • OLED77C1PUB
  • OLED77G1PUA
  • OLED83C1AUA
  • OLED83C1PUA

1. The first step we recommend taking is to make sure that the Energy Savings is turned off.

In order to do so, you can take the following steps:

  • Press the gear button on the Magic Remote for your LG TV.
  • If you opened the game dashboard, select All Settings and then Support. If you opened the regular menu, then you should be able to select Support right away.
  • In Support, select Energy Saving.
  • On the Energy Saving menu, select Energy Saving Step.
  • In the Energy Saving Step menu, make sure you set this setting to off.

2. We also recommend turning off the Logo Brightness.

To disable this setting, you can do the following:

  • Press the gear button on the remote controller to open Settings. If you open the game dashboard instead, select the All Settings option in the dashboard.
  • In Settings, select Support.
  • In Support, select OLED Panel Care (if you have an older firmware for the TV, then this will be named OLED Screen Saver).
  • In the new menu, select Adjust Logo Brightness.
  • Set the Adjust Logo Brightness setting to Off.

3. Another feature that you can disable is the AI Brightness Settings, which you can do by taking the following steps:

  • On your TV remote, press the gear button in order to get to Settings. If this action brings up the game dashboard instead, then you will then need to select All Settings in the dashboard.
  • After getting to Settings, select General.
  • In General, select AI Service.
  • Inside of the AI Service menu, make sure that the AI Brightness Settings is disabled. If the switch next to it is set to the right ride, then it indicates that this setting is currently enabled. To turn it off, simply select AI Brightness Settings to move the same switch to the left side.

4. You should also disable Auto Dynamic Contrast by doing the following:

  • Go to the Settings of your LG A1, B1, C1 or G1.
  • Inside Settings, select Picture.
  • In the Picture menu, select Advanced Settings.
  • Inside the Advanced Settings menu, select Brightness.
  • In the Brightness menu, make sure that Auto Dynamic Contrast is turned off.