Owners of Xiaomi smart TVs often face the need to manually adjust image settings, especially after connecting a new media player or game console. Android TV standard settings sometimes automatically choose the incorrect mode, which leads to a fuzzy picture or black stripes at the edges of the frame. Proper configuration of the matrix is not just a matter of aesthetics, but also a way to extend the life of the device and reduce the load on the eyes.
Modern Mi TV and Redmi TV panels support a wide range of standards, from the classic 1080p to advanced 4K UHD. However, to get the maximum quality, the user often has to intervene in the system itself. In this article, we will discuss in detail how to change the resolution, refresh rate and other critical parameters of the video output.
Before we get into the technical details, it is worth noting that most modern models run on the basis of the PatchWall operating system or pure Android TV. The interface may vary slightly depending on the regional version of the firmware, but the logic of actions remains the same for all devices of the brand.
Available resolution modes in the Android TV interface
Xiaomi TV interface provides flexible tools for video stream management. In the standard settings menu, you can find the section responsible for display parameters. Here the system offers several pre-installed options that depend on the capabilities of your particular matrix model.
The main formats commonly available are 1920x1080 (Full HD), 3840x2160 (4K) and sometimes 1280x720. Choosing a specific value affects how the TV will scale content. If you watch low-quality terrestrial TV, 4K installation may not give a visible improvement, but only increase the load on the processor.
- 📺 Auto – mode in which the TV itself determines the settings for the connected source.
- 📺 4K 60Hz — best choice for viewing HDR-Content and Consoles of Modern Consoles.
- 📺 1080p 60Hz — standard for cable TV and old consoles.
- 📺 1080p 50Hz — Specific regime for European broadcasting PAL.
⚠️ Warning: If you switch to unsupported resolution, the screen may go out for 15 seconds. If the image does not appear, the system will automatically return the previous settings.
It’s important to understand the difference between the native resolution of the matrix and the output signal. Even if your panel is physically 4K, setting a lower resolution in the settings will cause the processor to upscaling the image programmatically, which sometimes leads to soap in the menu interface.
How to change permission through the standard menu
Changing the display settings on Xiaomi TVs is easy, but requires care. You do not need additional remotes or applications, everything is done with the regular system tools.
To start, click the Menu button on the remote control (usually a three-bar or gear button). In the window that opens, select Settings, then go to Screen and Sound or Display.
☑️ Screen setting algorithm
Inside the screen resolution menu, you will see a list of options available, the system will show a preview or a brief description of the selected mode, and after selecting a new value, a countdown timer (usually 15 seconds) will appear on the screen.
If the picture is clear and correct, press OK or any confirmation button before the time is up, otherwise don't touch anything, the TV will return the old settings, and it's a security mechanism that prevents image loss.
| Parameter | Description | Recommendation |
|---|---|---|
| 1080p 60Hz | Full HD, 60 frames | Basic mode for TV |
| 4K 60Hz | Ultra HD, 60 frames | For movies and games |
| 4K 30Hz | Ultra HD, 30 frames | Old HDMI cables |
| HDR Mode | Dynamic range | Enable for 4K content |
It is worth noting that on some PatchWall firmware, the path may look different: Profile -> Settings -> About TV -> Screen resolution. Always look for the section associated with Display or Screen.
Customization of refresh rate and hertzov
The refresh rate of the screen, measured in Hertz (Hz), determines how many times an image is updated per second. For Xiaomi TVs, 50 Hz and 60 Hz are relevant, and in top models, up to 120 Hz.
The wrong choice of hertz can lead to a judder twitch when watching movies or feeling “soap” in dynamic game scenes. 60 Hz is the world standard for digital content and games, while 50 Hz is more suitable for European television.
Gamers using Xbox Series X or PlayStation 5 consoles need to make sure that the TV settings activate HDMI 2.1 or Game Mode, which often force the frequency to switch to 60 or 120 Hz to reduce input lag.
If you notice a tearing, try changing the frequency in the settings of the TV or in the menu of the console itself.
Use of HDMI 2.1 and HDR modes
Modern Xiaomi Mi TV models are equipped with HDMI 2.1 ports that pass much more data than previous versions, which allows you to transmit 4K images with high frame rate and support for extended dynamic range.
To activate all features, you need to not only set the correct resolution, but also enable the appropriate options in the port menu. Go to the input settings and find the option “HDMI Format”. Here you need to select “Enhanced” or “HDMI 2.0/2.1” instead of the standard mode.
What does Enhanced mode do?
HDR10, Dolby Vision and HLG modes only work if the source (player, console) and cable also support these standards. Xiaomi TV will automatically switch to HDR mode if it receives the corresponding signal, but you can check this in the content information (usually the “i” or “Info” button on the remote).
If HDR is not turned on, check the properties of the cable. 4K HDR requires cables labeled High Speed or Ultra High Speed. Old wires may not physically miss the desired amount of data.
Problems with scaling and black stripes
One of the common problems is that the image doesn't take up the entire screen, or it gets cut off at the edges, which is called the aspect ratio problem, or Overscan.
In the image settings, look for “Imaging Format,” “Entertainment Ratio,” or “Picture Size.” Try switching modes from “16:9” to “Just Scan,” “Scan by Screen Size,” or “Original.” Just Scan mode usually removes any croppings and shows the picture of the pixel to the pixel.
- 🔍 Just Scan – Disables Scaling, Perfect for PC.
- 🔍 16:9 – Standard stretching, can be cut.
- 🔍 4:3 – For old content, stripes appear on the sides.
- 🔍 Zoom – Digital zoom, degrades quality.
⚠️ Note: Using Zoom or Wide mode for low quality content (SD-channels) blurs the image because the TV artificially stretches the pixels.
It’s also worth checking the settings of the source itself, for example, Android Box or consoles often have a separate screen menu where you can push the boundaries of the image manually if the TV’s automation fails.
Advanced customization via engineering menu and ADB
For advanced users who do not have enough standard options, there is the possibility of customization through debugging by ADB (Android Debug Bridge), which allows you to change hidden settings that are not available through the usual interface.
To start, activate the developer mode. Go to Settings -> Device -> Assembly and press 7 times until the activation message appears. Then turn on "Debugging by USB" in the developer menu.
adb connect 192.168.1.XX
adb shell wm size
adb shell wm densityThe wm size command will show the current resolution, and wm density will show the pixel density (DPI), which you need to change with caution, because incorrect parameters can make the interface unreadable.
💡
Before making changes through ADB, write down the initial density values on paper, which is the only way to quickly return everything to the same way in case of an error.
Using third-party apps from the Google Play store, such as Video Tuner or Set Orientation, can simplify the process by providing a graphical interface for hidden Android TV settings.