How to set up a screen grid via Wi-Fi: detailed instructions for all TV models

Have you noticed blurry edges, fuzzy lines, or strange grid-like artifacts appearing on your TV screen? These are typical signs of improper setup. pixel structure of the screen — a parameter that many users don't even know exists. In modern TVs (especially those with a resolution 4K And 8K) The screen grid may become out of alignment after a firmware update, a change in signal source, or even when connecting to a new Wi-Fi network. Fortunately, most manufacturers allow you to adjust this setting remotely—directly over a wireless connection.

In this article we will look at how to set up a grid through Wi-Fi On TVs of different brands, why it gets out of sync, and what to do if standard methods don't work. You'll learn about hidden service menus, proprietary calibration apps, and even how to avoid common mistakes that lead to poor picture quality. And if your TV doesn't support remote setup, we'll suggest workarounds.

What is a "screen grid" and why should you adjust it?

The term "screen grid" (or pixel grid) refers to the pixel structure on a TV's matrix. Ideally, pixels should form smooth, unshifted lines, but due to hardware issues, firmware errors, or external interference, this structure can become distorted. The result is Blurred subpixels, "dirty" colors, and a "double image" effect, especially noticeable on text or thin lines.

The main reasons why the grid gets out of alignment:

• 🔄 Firmware update — new software versions sometimes reset the screen calibration to factory settings.
• 📶 Wi-Fi interference - If the TV receives a signal with interference (for example, from neighboring networks on the same channel), this may affect image processing.
• 🎮 Changing the signal source - connecting a set-top box, PC or gaming console with a non-standard resolution (1440p, 1080i).
• ⚡ Power surges — even short-term fluctuations can disrupt the matrix settings.

Setting up the grid via Wi-Fi relevant for Smart TV with remote control support (most models Samsung QLED, LG OLED, Sony Bravia 2019 and newer). Older TVs (pre-2017) usually require a cable connection or a remote control with service buttons.

Preparing your TV for setup via Wi-Fi

Before you begin grid calibration, make sure your TV is ready for the process. Here are the minimum requirements:

If your TV is connected to Wi-Fi but the connection is unstable, follow these steps:

1. Reboot your router (unplug the power for 30 seconds).
2. Reconnect your TV to the network: go to Settings → Network → Wi-Fi Settings and select your network again.
3. If used 5 GHz, try switching to 2.4 GHz (or vice versa) - some TVs work better at one of the frequencies.

Important! If you use Android TV (For example, Xiaomi Mi TV or Philips), before setting up, disable all apps running in the background. To do this:

1. Go to Settings → Applications.
2. Select Running applications.
3. Stop all processes except system ones.

Setting up the grid on Samsung TVs (QLED, Neo QLED, The Frame)

Televisions Samsung with the operating system Tizen Allows you to adjust the pixel structure via a hidden service menu. This doesn't require physical access to the TV—a Wi-Fi connection and a standard remote control are sufficient.

Instructions for 2018 and newer models:

1. Turn on your TV and wait until the main screen loads.
2. On the remote control fast (within 2 seconds) press the sequence:

   Info → Menu → Mute → Power

   After this, the service menu will open. SVC Mode.

3. Go to the section Picture → Pixel Adjustment.
4. Select an option Grid Calibration and follow the on-screen prompts. The TV will display a test pattern (grid), which you'll need to adjust using the buttons. Up/Down And Left/Right.
5. After setting up, save the changes by clicking Exit.

For models Samsung The Frame (2020–2026) the process is slightly different:

• 🖼️ Turn it on Art mode (button Art Mode on the remote control).
• Go to Settings → Display → Additional settings.
• Select Pixel calibration and follow the instructions.

What to do if the service menu does not open?

If the key combination doesn't work, try:

1. Use the original remote control (not universal).

2. Disconnect the TV from the network for 5 minutes, then try again.

3. Update the firmware to the latest version.

On some models (eg, Samsung QN90C) the service menu is blocked - in this case, you will need to connect via cable or contact a service center.

Warning! Do not change other parameters in the service menu unless you are sure of their purpose. Incorrect settings may result in loss of warranty or irreversible deterioration of image quality.

LG OLED and NanoCell Grid Calibration via Wi-Fi

Televisions LG With webOS (models C1, C2, G2, QNED and newer) support remote adjustment of the pixel structure via the application LG ThinQThis method only works when connected to the same Wi-Fi network as your TV.

Step-by-step instructions:

1. Install the application LG ThinQ on smartphone (Android or iOS).
2. Connect your phone and TV to the same Wi-Fi network.
3. Launch the application and select your TV from the list of devices.
4. Go to the section Picture settings → Advanced → Screen calibration.
5. Select Grid settings and follow the on-screen instructions. The app will prompt you to calibrate the grid using a test image (usually a checkerboard or lines).
6. Once completed, click Save — the settings will be applied automatically.

For models LG OLED (For example, C3 or G3) an additional option is available Pixel Refresh, which helps eliminate residual artifacts. To activate it:

1. Go to Settings → General → About TV → Additional settings.
2. Select Pixel Refresh and start the process. It will take about 10 minutes.

On TVs LG NanoCell (For example, Nano85 or Nano90) the service menu opens differently:

1. Press and hold the button on the remote control Settings (gear) for 5 seconds.
2. Enter the code 0413 (for 2020–2026 models).
3. Go to Picture → Grid Adjustment.

Setting up a network on Sony Bravia (Android TV and Google TV)

Televisions Sony Bravia With Android TV or Google TV (models X90J, X95K, A80L and newer) allow you to customize the pixel structure through the built-in menu or application Sony Video & TV SideViewThe main advantage is support. automatic calibration according to reference images.

Method 1: Via the TV menu

1. Open Settings → Image → Additional settings.
2. Select Display Settings → Grid Calibration.
3. The TV will display a test image (usually lines or dots). Use the buttons Up/Down/Left/Rightto align the grid.
4. Save the settings.

Method 2: Via the app Sony Video & TV SideView

• 📱 Install the app on your smartphone and connect to the same Wi-Fi network as your TV.
• 🔍 Select your TV from the list of devices.
• 🎛️ Go to Image Settings → Calibration.
• 🖥️ Follow the on-screen instructions (the app will prompt you to calibrate the grid using a template).

Peculiarity! On some models Sony (For example, X90L) there is a function Auto Pixel Alignment, which automatically adjusts the grid each time you turn it on. To activate it:

1. Go to Settings → System → Auto settings.
2. Enable the option Auto Pixel Alignment.

Troubleshooting: Grid won't adjust or distortions persist

If after all these steps the grid is still distorted or Wi-Fi setup is unavailable, check the following:

If the problem persists, try reset image settings:

1. On Samsung: Settings → Support → Self-diagnosis → Reset image.
2. On LG: Settings → All settings → General → Factory reset → Picture settings only.
3. On Sony: Settings → System → Reset → Reset picture settings.

Attention! ⚠️ On TVs TCL And Hisense (especially on models with Roku TV) Configuring a Wi-Fi network is often unavailable. In this case, you'll need:

• 🔌 Connect the TV to the router via cable and use the web interface (if supported).
• 📞 Contact a service center for hardware calibration.

Alternative methods for setting up the grid without the service menu

If your TV does not support remote calibration via Wi-Fi, you can try alternative methods:

1. Using test videos

On YouTube There are videos for screen calibration (for example, "TV Grid Test Pattern"). Play this video on your TV and manually adjust the settings:

• 🔍 Sharpness (set to 50–70%).
• 🎯 Noise Reduction (turn off).
• 🖼️ Reality Creation (on Sony) or AI Upscaling (on Samsung) - turn it off.

2. HDMI-CEC connection

If your TV supports HDMI-CEC (HDMI control function), you can try to set up the grid through a connected device (for example, NVIDIA Shield or Apple TV):

1. Connect the device to the same HDMI port as the signal source.
2. In your device settings, find the screen calibration option (for example, Match Content on Apple TV).
3. Follow the instructions on the screen.

3. Software calibration via PC

For TVs with Android TV you can use the app CalMAN (requires Wi-Fi connection and calibrator):

1. Install CalMAN on PC.
2. Connect your TV and PC to the same network.
3. Follow the setup wizard in the program.

FAQ: Frequently asked questions about setting up a Wi-Fi network

Is it possible to set up a network on an old TV (before 2017) via Wi-Fi?

No, most TVs prior to 2017 do not support remote pixel calibration. You will need:

• Use the service remote control with a button SVC.
• Connect via cable (for example, via RS-232 or LAN).
• Contact the service center.

Exception - some models Samsung 2015–2016 Tizen, where the service menu is opened by a combination of buttons.

After adjusting the grid, stripes appeared on the screen. What should I do?

This is a typical issue with over-calibration. Reset the settings to factory defaults:

1. On Samsung: Settings → Support → Self-diagnosis → Reset image.
2. On LG: Settings → All settings → General → Factory reset → Picture settings only.

If the stripes remain, check your HDMI cable or signal source - the problem may not be with the network, but with the data transmission.

Do I need to adjust the grid on OLED TVs?

Yes, but carefully! OLED-screens (for example, LG C3 or Sony A95K) Incorrect calibration may result in:

• 🔥 Temporary afterimage (burn-in effect).
• 🎨 Color distortion (especially in dark scenes).

We recommend using automatic calibration (if any) or contact a specialist.

Is it possible to set up a grid on a TV without Smart TV?

On TVs without Smart TV (for example, old ones Philips or Panasonic) remote configuration is not possible. Alternatives:

• 🔧 Use external processor (For example, DarbeeVision), which corrects the signal before displaying it on the screen.
• 🛠️ Contact a service center for hardware calibration.

How often should the grid be adjusted?

The frequency depends on the operating conditions:

• 📺 In normal use — once every 6–12 months.
• 🎮 During active gaming (especially at high resolutions) - once every 3-4 months.
• ⚡ After power surges or firmware updates - immediately after the event.