Modern Xiaomi TVs and Mi Box consoles offer a wide range of multimedia capabilities, but the quality of the output image often depends not only on the panel matrix, but also on the software settings. Many users face a situation when the picture looks blurry, or, conversely, the edges of the image are cropped, hiding important information from the interface or subtitles. Understanding how to adjust the screen resolution is key to get maximum pleasure from viewing content in high quality.
The problem may lie in the automatic setting of the display, which does not always work correctly with external receivers or specific models of monitors. In some cases, the system defaults to a safe but low standard of output without using the potential of 4K HDR. In this article, we will discuss in detail all available methods for manual adjustment of the video output so that you can enjoy a clear and correct image.
Before you make any changes, you need to make sure that your signal source and cable support the desired parameters. HDMI-The cable can cause artifacts or the inability to set high resolution. Next, we will look at the standard tools of the Android operating system. TV, Hidden engineering menus and calibration methods via computer.
Understanding permissions and refresh rates on Android TV
The screen resolution is the number of pixels that make up an image. On Xiaomi TVs, the most common standards are Full HD (1920×1080) and Ultra HD (3840×2160). However, just having a 4K matrix does not guarantee that content will be displayed in this format. The operating system must send a signal of the appropriate density, which is especially important for interfaces and applications.
The refresh rate measured in hertz (Hz) is also an important parameter. The standard value for television is 60 Hz, but current models support 120 Hz for smoother picture in games and dynamic scenes. Incorrect frequency selection can lead to screen flickering or complete absence of image.
What is the difference between resolution and scaling?
You should consider that changing the video output settings affects all applications at once. If you set a setting that is not supported by the connected display, the screen may go out. In such cases, the Android TV system usually offers to return the previous settings in a few seconds, but it is better to be ready for a manual reset.
Configure resolution through the system menu of the TV
The easiest and safest way to change display settings is to use the operating system’s built-in settings, which is suitable for most users and does not require additional software installation. The interface may vary slightly depending on the version of MIUI for TV or pure Android TV.
You first have to go to the main menu and find the settings section, which is usually indicated by the gear ikon in the upper right corner of the screen, and you have to find the display or image item where the technical parameters of the video output are hidden.
Follow the following steps to access the settings:
- 📺 Click the "Menu" button on the remote and go to the Settings section.
- ⚙️ Select Preferences or System, then About TV.
- 🖥️ Find the resolution or screen and sound -> Screen resolution.
- ✅ Select the desired value from the list (for example, 1920x1080 or 3840x2160) and confirm the choice.
☑️ Check after change of permit
When you select a new mode, the TV can go out for a few seconds to adjust the signal timing. If the image is gone and does not appear within 15 seconds, the system will automatically return the previous settings. If the picture is present but looks incorrect, repeat the procedure and select another option.
Use of Mi Remote and Hidden Menus
In some cases, the standard menu can be limited by the manufacturer, hiding certain modes of operation. To access advanced settings, you can use the Mi Remote app on your smartphone or special codes in the engineering menu. This requires more care, as you access system settings.
One of the most effective ways is to use the Display Tester app or similar utilities from the Google Play store. They allow you not only to check the matrix for broken pixels, but also to forcefully change the resolution through the Google Play store. ADB-commands or system calls if the TV has root rights or debugging enabled USB.
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Use voice search on the Xiaomi remote: tap the microphone button and say “Screen settings” – this is often faster than finding the right item in the deep menus.
For advanced users, you can log in to the engineering menu through the remote button combinations. For example, some models have Up, Up, Down, Down, Left, Right in the main menu. Once inside, you can find the Panel Setting section, where you can find more subtle timing settings.
⚠️ Warning: Making changes to the engineering menu may cause the TV to run unstable or reset warranty obligations. Write down the initial values before changing them so you can roll back.
Calibration through connection to a computer
If the remote doesn't allow you to fine-tune the image, or if the interface on the TV doesn't look right, you can use the computer as a signal source for calibration. By connecting the laptop to the TV via HDMI, you can use the tools of the Windows or macOS operating system to fine-tune it.
In Windows 10 and 11, you have to right-click on your desktop and select Screen Settings. In the Display section, select your Xiaomi TV from the list and set the recommended resolution. There is also a zoom setting available, which can be useful if the interface elements are too small.
For more in-depth customization, use the NVIDIA Control Panel, AMD Radeon Software, or Intel Graphics Command Center, where you can configure:
- 🎨 Dynamic range: set the value "Full" (0-255) Instead of "Limited" (16-235) more saturated.
- 🔄 Update frequency: Make sure you select the maximum value supported by the panel (usually 60 Hz).
- 📐 Scaling: Select No-Scaling or Screen Size mode to avoid blurring.
After setting the settings on the computer, the Xiaomi TV often remembers these settings for a specific HDMI input.This means that even after turning off the PC and switching to the built-in TV apps, the system can try to keep the optimal output settings.
Removing the problem of edge trimming (Overscan)
A common problem with external devices is the Overscan effect, where the edges of an image extend beyond the visible area of the screen, a legacy of analog television that is sometimes mistakenly applied to digital signals, and as a result, you don't see part of the desktop or important interface elements.
To fix this, you need to find a setup for the aspect ratio or image format. On Xiaomi TVs, it's often called "Format," "Aspect Ratio," or "Screen Mode," and you need to choose a mode that disables automatic stretching.
Let’s consider the main display modes in the table:
| Regime. | Description | When to use |
|---|---|---|
| 16:9 | Standard stretching | For most TV channels |
| Just Scan / By Size | 1 to 1 without pruning | For PC, consoles, Android menu |
| 4:3 | Old format | For archival video |
| Zoom | Digital magnification | For looking at small details |
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Just Scan or Screen Size is a must for Xiaomi TV as a monitor, as it provides pixel output to pixel.
If there is no obvious switch on the TV menu, try to find the Auto-fitting or Auto-Space setting. In some Mi TV models, this option is hidden in the General Settings menu -> External Inputs. Make sure that the automatic formatting option is disabled if it is not working properly.
Resetting image settings and factory reset
If no resolution manipulations are effective and the image remains distorted, there may be software errors in the system, in which case an effective solution may be to reset the image settings to factory values or completely reset the system.
To reset only the screen settings, go to Settings -> All settings -> Image and find the Reset button at the end of the list. This will return the brightness, contrast and, importantly, the screen format parameters to the original state.
If the problem is systemic, a complete reset will help:
- Go to Settings -> About the device.
- Select Reset.
- Confirm the action by entering the code or pressing the confirmation button.
⚠️ WARNING: A full reset will remove all installed apps and accounts.Be sure to remember passwords from your Google and Netflix accounts before performing this procedure.
Once the TV is restarted, it will start as new, and in the initial setup phase, the system will re-determine the parameters of the connected panel and set the optimal resolution, often solving problems that have arisen after a failed firmware update.