Hidden settings on your TV. You need to know these codes to activate them

Many TV manufacturers, such as LG, Samsung, Sony, Panasonic, Philips, Hisense and TCL, hide advanced options in a special service menu. These hidden menus, accessible only via special key combinations on the remote control, offer a wide range of tools and settings that can significantly improve picture and sound quality, as well as provide diagnostic tools. Below you will find a practical guide on how to access these menus for each TV brand.

What will you find in the service menu?

The service menu offers a variety of options that are not available to everyday users. Here are the most important ones:

• Software updates: The ability to update your TV’s firmware, which can improve performance and add new features.

• Image calibration: adjust brightness, contrast, color temperature, gamma, white balance and color management.

• Screen settings: adjust resolution, sharpness, overscan and aspect ratio.

• Audio settings: Advanced sound tuning such as equalizer and audio sync.

• Diagnostic tools: View error logs and run tests on hardware components.

• Tuner settings: adjust frequency and channel search parameters.

• Network settings: WLAN and LAN configuration and diagnostic tools.

• Energy saving: manage power consumption and stand-by modes.

• Device Settings: Restore factory settings and manage device features.

• Hidden options: access to debugging and development options.

How do I access the service menu?

To open the service menu, follow the instructions specific to your TV brand:

1. LG: Press the “Menu” or “Settings” button, then quickly enter 1, 1, 0, 5 or 1, 1, 1, 1, and confirm with “OK”.

2. Samsung: Turn off the TV and quickly press “Info”, “Menu” and the “Mute” button twice.

3. Sony: Turn on the TV, then quickly enter “Display”, 5, “Volume +”, and “On”.

4. Panasonic: turn on the TV, press “Volume -” on the TV and “Menu” three times on the remote control.

5. Philips: Turn off the TV, hold “Volume -” and “Channel -” on the TV, then press “On” on the remote control.

6. Hisense: In the settings, go to “Sound”, then “advanced”. Go to “Balance”, enter: 1, 9, 6, 9, and when the screen changes, press “Menu”.

7. TCL: Go to the “Picture” menu, then “Advanced Settings”, leave the cursor on “Contrast” but do not press “OK”. Then enter 9, 7, 3, 5 on the remote.

Tips and Warnings

Before making changes to the TV’s service settings, it is worth noting the current configurations. Incorrect modifications can cause permanent damage to the device. In case of doubt, contact the manufacturer’s technical support. The benchmark.pl portal reminds that tampering with the service menu can lead to loss of warranty, because any changes can be recorded in the system logs.

When you buy a TV, your first step should be to set the mode to “home”. New TVs often operate in “shop mode”, which can affect the picture quality. To change this, look for the “shop/home mode” option in the settings menu.

TVs offer different picture modes, such as “Dynamic,” “Standard,” and “Movie.” “Movie” mode usually provides the most realistic picture. It’s worth testing different modes to find the one that suits you best.

To avoid cutting off the edges of the image, turn off the overscan function in the settings. The name of this function may vary depending on the TV manufacturer.

The TV service menu allows for advanced settings and diagnostics of the device. Use it with caution and always with full awareness of the possible consequences.