How to Change the Screen Resolution on Xiaomi TV: A Complete Guide with Expert Tips

Xiaomi TVs with Android TV or Google TV offer a wide range of fine-tuning options, including changing screen resolution. However, many users face challenges: where exactly these settings are hidden, why some modes are not available, and how to choose the optimal resolution for watching movies, broadcasts or games. In this article, we will discuss all the ways to change the resolution, from standard settings to hidden engineering menus, and explain how to avoid typical errors that lead to blurred or cropped images.

It is important to understand that not all Xiaomi Mi TV, Redmi Smart TV or Xiaomi TV A models support manual resolution change in the same way. For example, budget devices are often limited to automatic selection, while flagship models (such as Xiaomi TV Q2 75" or Mi TV 6 OLED) allow you to manually set parameters up to the refresh rate. We will look at options for all types of TVs, including solutions for cases where the desired resolution is "gray" and not available for selection.

Why you might need to change the resolution on your Xiaomi TV

At first glance, it seems that the TV should automatically adapt to the signal from the source - whether it is a console, a game console or a streaming video. However, in practice, users face a number of problems that are solved by manually adjusting the resolution:

• 🎮 Game consoles (PS5, Xbox, Nintendo Switch: Many games support multiple output modes (e.g., Nintendo Switch, 4K/30fps or 1080p/60fps), The TV may not be able to determine the optimal.
• 📺 Old consoles (Dune) HD, MAG-250): Some devices transmit a signal in non-standard resolution, which causes the image to be cut or stretched.
• 🖥️ Connecting PCs to HDMI: When using a TV as a Windows monitor or macOS, it can send a signal in a resolution not supported TV (for example, 1366×768 instead 1920×1080).
• 📹 Streaming video with artifacts: some services (for example, YouTube or Netflix) at low Internet speed automatically reduce the resolution, but the TV continues to scale the picture, degrades the quality of the image.

Another common situation is that Android TV interfaces are not displayed correctly, for example, when the firmware updates, the fonts become too large or small, and menu items do not fit on the screen, in which case changing the resolution helps to restore usability.

⚠️ Note: If your Xiaomi TV does not support manual resolution change in standard settings, do not attempt to activate hidden modes through the engineering menu without understanding the consequences. Incorrect settings can lead to loss of warranty or failure of the matrix (especially on the computer). OLED-model).

Method 1: Change resolution through standard Android TV settings

Most Xiaomi TVs based on Android TV 9.0 and later allow you to change the resolution directly in the settings menu.

1. Turn on the TV and press the Settings button on the remote.
2. Go to Settings → Display and Sound → Screen Resolution.
3. In the list of available modes, select the desired resolution. Usually available options: 3840×2160 (4K UHD) for modern content; 1920×1080 (Full HD) for universal mode; 1280×720 (HD) for older devices; Auto-TV chooses the optimal one.

Confirm the choice and wait for the settings to be applied (the screen may blink).

If the resolution is not on the list, it means that your Xiaomi model does not support it at the hardware level, for example, Redmi Smart TV X series with Full HD screen resolution cannot physically display 4K, even if the connected device supports it.

Make sure that the HDMI cable supports the desired resolution (for example, 4K@60Hz requires HDMI 2.0)

Disable any additional devices (sound panels, receivers) that may affect the signal

Remember the current settings to return them in case of problems

Check if your TV supports the selected resolution (see model specifications)

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On some models (such as the Mi TV 4S), you may need to reboot after changing the resolution. To do this, press the Power button on the remote for 5 seconds and select Reboot.

Method 2: Configure permission for a specific HDMI-port

If you connect external devices (gaming console, PC, media player) to Xiaomi TV, you can set an individual permission for each device. HDMI-This is useful when one device requires a port. 4K, The other one works only in 720p.

Instructions:

1. Connect the device to the desired HDMI-port.
2. Go to Settings. → Devices and accessories → HDMI-device.
3. Select the port to which the device is connected (e.g. HDMI 1 (ARC)).
4. In the Signal Format or Display Mode section, select the desired resolution.
5. Activate the Save option for this port (if available).

On supportive TVs ALLM (Auto Low Latency Mode (e.g. Xiaomi) TV Q2) when choosing a permit for HDMI-You can also activate the low latency mode of the port, which is critical for games where the response to control is important.

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If, after the change of the permit, HDMI-The image is gone, wait 15 seconds, the TV must automatically return the previous settings. HDMI, Go back to the menu and select a different mode.

Method 3: Use of an engineering menu (for power users)

On some Xiaomi models (especially those released before 2020), standard settings do not allow you to change the resolution, in which case you can use the engineering menu, but you need to do this with caution - incorrect settings can lead to a system failure.

To open the engineering menu:

1. Turn on the TV and on the standard Xiaomi remote sequentially press: Menu → Up. → Up. → Down. → Down. → Left. → Right. → Left. → Right (in some models, the combination may be different).
2. The menu will be called Factory Menu or Service Menu.
3. Go to Display Settings or HDMI Mode.
4. Find Resolution, HDMI Format, or Output Mode options.
5. Manually set the desired resolution using the Volume +/- buttons for navigation.
6. Save the settings and restart the TV.

⚠️ Attention: The engineering menu also has options that affect the matrix, color gamut and even firmware"EEPROM" If you are not sure about your actions, it is better to contact the service center.

On models with Google TV (for example, Xiaomi TV Q2 2023), the engineering menu can be blocked, in which case, to unlock, you will need to connect to ADB (Android Debug Bridge) and execute the command:

adb shell am start -n com.android.tv.settings/.device.devicesettings.DeviceSettingsActivity

Method 4: Change resolution through ADB (for advanced users)

If standard methods do not work and the engineering menu is not available, you can try changing the resolution through the ADB-This is a way to do things for Android TVs. TV unlocked USB.

Instructions:

1. Activate Developer Mode on your TV: Go to Settings → About TV. Find the Build Number and click on it 7 times in a row. Go back to the main settings menu and a new Developer section will appear.

USB debugging

USB 3.0

ADB Tools

adb devices

Make sure the TV is on the list.

adb shell dumpsys display

In the conclusion, find the mCurrentDisplayInfo string.

1920x1080

adb shell wm size 1920x1080

adb shell reboot

Note that changes through ADB are not always saved after a reboot, and to fix the resolution, you will need to edit system files, which requires root access and can disrupt the TV.

Standard settings for Android TV

Individual settings HDMI-port

Engineering menu

ADB-team

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Problem Solving: What to do if the right permission is not available

Sometimes users are faced with a situation where the required resolution is gray and it cannot be selected.

• 🔌 Inconsistency HDMI-cable: For 4K@60Hz or 1440p cable HDMI 2.0 Check the labeling on the cable or replace it with a certified one (e.g. Ultra High Speed). HDMI).
• 🖥️ Signal source limitations: If you connect a PC, make sure the graphics card supports the resolution you choose. UHD may not 4K laptop-on.
• 📺 TV Limitations: Xiaomi's Budget Models (e.g. Mi) TV 4A 32) physically not supported 4K. Check the characteristics of your model on the official website.
• 🔄 Conflict with scaling settings: In the Settings menu → Special facilities → Screen size can be activated zoom - turn it off.

If the Xiaomi TV doesn’t see the signal from the device after changing the resolution, try:

1. Turn off the HDMI cable for 30 seconds, then reconnect.
2. At the signal source (PC, console) manually set the standard resolution (for example, 1024×768), then connect to the TV again.
3. Reset the settings HDMI-Port: Go to Settings → Devices → HDMI-chain → Drop it.

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If the TV stops displaying after changing the resolution, don’t panic: after 10-15 seconds, it will automatically return to the previous settings. If this does not happen, use the reset button on the case (usually located next to the previous settings). HDMI-port).

Optimal resolution settings for different scenarios

The choice of resolution depends on how you use the TV, and below are the recommendations for tasks:

For Sony PlayStation 5 and Microsoft Xbox Series X on Xiaomi TVs Q2 or Mi TV 6 it is recommended to enable Game Mode mode in the settings HDMI-This will reduce input lag to 10-15 milliseconds, which is critical for shooters and racing.

If you use your TV as a monitor for work, avoid 4K resolution on small diagonals (e.g. Mi TV 43). Small text and icons can cause discomfort. In this case, you'd better choose 1920×1080 with a 125% interface zoom.

Frequently Asked Questions (FAQ)