How to change the resolution on the TV Xiaomi: 5 ways + error solving

Changing the resolution of the screen on a Xiaomi TV is a challenge that users face when connecting new devices (PCs, consoles, game consoles) or after updating the firmware. The wrong resolution can lead to blurred images, cropped edges or black stripes on the sides of the screen. In this article, we will discuss all the current ways to change the resolution on Mi TV, Redmi TV and other models of the brand – from basic settings through the menu to hidden options for experienced users.

It's important to understand that Xiaomi TVs run on Android TV or PatchWall, so the ways you access the settings may vary depending on the firmware version. We've taken these nuances into account and put together generic instructions that will work for most models released after 2018. If your TV is older, some menu items may be called differently, we'll talk about that too.

1. Standard method: change the resolution through the TV menu

The easiest method is to use the built-in screen settings, which are suitable for adjusting the resolution when watching TV channels, using embedded applications (YouTube, Netflix), or connecting devices via HDMI in screen duplication mode.

The instructions are relevant for Xiaomi Mi TV 4/4A/4S/4X/5/5X, Redmi TV A/X and other models on Android TV 9.0+:

1. Turn on the TV and press the Settings button on the remote.
2. Go to Settings → Display and Sound → Screen Resolution.
3. Choose one of the available permissions: 📺 3840×2160 (4K) — For modern models with support for Ultra HD. 🖥️ 1920×1080 (Full HD) — The best option for most content providers. 📱 1280×720 (HD) — If the image is cut or artifacts arise. ⚙️ Auto – TV will select the resolution based on the source signal.

OK

If the list does not have the required permission, it means that the current signal source (for example, the console or PC) does not support it, in which case, try changing the resolution on the connected device or using alternative methods described below.

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On some Xiaomi models (e.g. Mi TV Q1/Q2), the screen resolution option is hidden in the submenu Additional Settings → Screen Mode. If you don't find the item, check this tab.

2. Set up the permit for HDMI-devices (PCs, consoles, consoles)

When connecting external devices via HDMI, the screen resolution can be reset or incorrectly set, which is because the Xiaomi TV tries to guess the optimal settings, but sometimes it makes a mistake. To fix this, you need to adjust the resolution on both the TV itself and the connected gadget.

First, check the signal source settings:

• 🖼️ For Windows PC: Right-click on the desktop → Screen parameters → Select the resolution supported by the TV (for example, 1920×1080 upon 60 Hz).
• 🎮 For game consoles (PS4/PS5, Xbox: Go to the display settings and select 1080p or 4K depending on the TV model.
• 📦 For set-top boxes (Android) TV Box, NVIDIA Shield: Go to Settings → Display. → Permission HDMI and set the value manually.

If the image is still displayed incorrectly after this, reset HDMI-port-television:

1. Turn off the HDMI cable from the TV.
2. Go to Settings → Devices and accessories → HDMI Reset.
3. Connect the cable again and select the desired resolution in the source menu.

3. Hidden settings: the developer mode and ADB-team

For power users who want to fine-tune resolution or fix display errors, advanced tools are available, one of which is the developer mode, which opens access to additional screen settings.

To activate the developer mode on Xiaomi TV:

1. Go to Settings. → On TV.
2. Find the Build Number (or MIUI Version) and click on it 7 times in a row.
3. Return to the main settings menu and a new section for developers will appear.

This section may be amended to:

• 🔍 Screen density (DPI): It affects the size of the interface elements (default value is 213 for Full). HD).
• 🖥️ Simulation resolution: allows for emulation of a different resolution (useful for application testing).
• ⚡ Acceleration GPU: Turning on this option can improve performance, but sometimes leads to artifacts.

For advanced users, customization via ADB (Android Debug Bridge) is also available. For example, to force a 1920×1080 resolution, use the command:

adb shell wm size 1920x1080

Attention: Change of permission through ADB If the screen starts to show up incorrectly after the command, return the standard settings with the command. `adb shell wm size reset`.

4. Solving problems with blurred image or cropped edges

A frequent complaint of Xiaomi TV users is blurry text or cropped edges of the image (overscan), this is due to incorrect signal processing or outdated zoom settings.

If the problem persists, try resetting the screen settings to factory:

1. Go to Settings → Display and Sound → Reset screen settings.
2. Confirm the action (the TV will restart).

✅ Make sure the problem is not the cable. HDMI

✅ Check the permission settings on the connected device

✅ Try another one. HDMI-TV-port

✅ Write down the current sound settings (they will reset)

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5. Features of setting the resolution on different models Xiaomi

Xiaomi TVs are divided into several lines, and the path to resolution settings may vary. Below is a short guide for popular series:

• 📺 Mi TV 4/4A/4S (2018–2020): Settings menu simplified. Resolution changes to Settings → Screen. → Permission. No developer mode.

For models from 2023 to 2026 (e.g., Xiaomi TV A Pro or Redmi Smart Fire TV), a firmware update may be required, as early versions of the software do not have manual resolution settings. Check firmware relevance in Settings → About TV → System Update.

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On Xiaomi PatchWall TVs (such as the Mi TV Q1E), the shell settings are prioritized over the Android TV. If changing the resolution in the standard menu doesn’t work, try doing so through PatchWall Settings → Display.

6. Frequent mistakes and how to avoid them

When changing the resolution, users often make mistakes that lead to poor image quality or even TV failures, among the most common ones:

⚠️ Note: If you are connecting Xiaomi TV PC-only HDMI and select the permission above 1920×1080, Make sure the cable supports the bandwidth 18 Gbps (standard) HDMI 2.0). Otherwise, the image will be “torn” or displayed with artifacts.

Top.-5 mistakes and their solutions:

1. Installation of non-standard permission (for example, 1366×768 on 4K-televisor). → Use only the native resolution of your model (indicated in the specifications).
2. Ignoring refresh rate (Hz). → For 4K, choose 30Hz or 60Hz (if the TV supports).
3. Reset settings without saving current settings. → Pre-photograph the screen with settings or record them.
4. Use of cheap HDMI-cable. → For 4K HDR You need a Premium Certified cable.
5. Changing DPI without understanding the consequences. → Non-standard DPI values can make text unreadable.

If the TV stops turning on or the screen turns black after the change, don't panic.

1. Turn the TV off the socket.
2. Press the Power button on the case (not on the remote) and connect the power.
3. Hold the button for 10-15 seconds until the Xiaomi logo appears.

FAQ: Answers to Frequent Questions