Setting up the screen resolution on the Xiaomi TV: all the ways and subtleties

Xiaomi TVs (Mi TV series, Redmi Smart TV, Xiaomi TV A Pro) support a wide range of resolutions - from the standard 1366×768 to 3840×2160 (4K). However, the device does not always automatically select the optimal parameters, especially when connected via HDMI to game consoles, PCs or media players. Incorrect resolution leads to blurred images, cropping edges or black stripes on the sides.

In this article, we will discuss all the ways to adjust the resolution on Xiaomi TVs, from basic menu options to hidden options for power users, pay attention to the features of different models (for example, Mi TV 4S vs Xiaomi TV Q2), as well as typical errors that spoil the picture. If your TV does not recognize the signal from an external device or displays it incorrectly, here you will find a solution.

1. Automatic resolution setting via TV menu

Most modern Xiaomi models (e.g. Mi TV P1, Redmi Smart TV X) support auto-tuning, which analyzes the input signal and selects the optimal parameters to activate it:

1. Press the Menu button on the remote (or Settings on the screen).
2. Go to Settings → Image → Image Mode.
3. Select Autoset or Optimization for the source.
4. Confirm the start of the process – the TV will test several modes and apply the best.

⚠️ Note: Autoset only works when connected via HDMI. For embedded applications (for example, Netflix or YouTube), it does not apply – here the resolution depends on the content and settings of the service itself.

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If after auto-tuning the picture became worse, return factory settings to Settings → System → Reset image settings.

On some models (e.g. Mi TV 4A), the auto-tuning function is hidden to find it.

1. Press the Menu + Up button on the remote for 5 seconds.
2. In the service menu, select Factory Reset → Auto Adjustment.
3. Confirm the action with the OK button.

2. Manual setting of permission for HDMI-device

If Xiaomi TVs are not able to determine the resolution from an external source (for example, the PlayStation 5 is 1080p instead of 4K), you will have to adjust the settings manually, and you can do this in two ways: through the menu of the TV or on the side of the connected device.

Method 1: HDMI settings on the TV

For Android TV models (e.g. Xiaomi TV Q1):

1. Go to Settings. → Devices and accessories → HDMI-entrances.
2. Select the port to which the device is connected (e.g. HDMI 1 (ARC)).
3. In the Signal Format section, set the desired resolution: 720p, 1080i, 1080p, 4K@30Hz or 4K@60Hz.
4. Activate the option of Advanced Color Range (HDR) if your device supports HDR10 or Dolby Vision.

Method 2: Settings on an external device

Sometimes the problem isn't with the TV, it's with the source of the signal.

• 🎮 Game consoles: On PS5 Press the power button for 7 seconds to open the permission menu. On Xbox Series X, go to Settings → General. → TV and display settings.
• 💻 Computers: In Windows 10/11 Open the screen settings → Additional parameters → Resolution. For Mac, use System Settings → Monitors.
• 📺 Media Players: At Apple TV or NVIDIA Shield check the output settings in the display menu.

Critical error: If the screen turns black after changing the resolution, wait 15 seconds for the TV to return to its previous settings. If it doesn't, press the Power button on the remote for 10 seconds to force reset.

3. Setup permission for embedded applications (Smart TV)

When viewing content via Netflix, YouTube or Prime Video, Xiaomi TVs can automatically lower the resolution due to weak internet or app restrictions.

1. Open the app (such as YouTube).
2. During the video playback, press the Menu button on the remote.
3. Choose Quality. → Maximum (4K/HDR).
4. If the option is not available, check the internet speed (should be at least 25 Mbps for 4K).

For Netflix, additionally:

• 📺 Make sure your tariff supports Ultra HD (cost ₽/moss).
• 🔍 In the application settings, activate Enable HDR (if the TV supports).
• 🔄 Restart the app or update it via Google Play.

⚠️ Note: If after updating the firmware of the TV, the application began to "slow down" in the 4K, Try rolling back the software or resetting to factory settings, which is true for 2020-2021 models (e.g. Mi Mi). TV 4S 55").

4. Service menu: hidden permission settings

For power users who have not been helped by standard methods, there is a service menu (Service Menu) that allows you to manually set screen settings, including non-standard resolutions. Careful: incorrect settings can cause the TV to crash!

To enter the service menu on most Xiaomi models:

1. Turn off the TV with a button on the remote.
2. Press sequentially: Menu → Up → Up → Down → Down → Left → Left → Right → Right → OK.
3. From the menu, select Picture → Resolution Settings.

The following options are available in the service menu:

⚠️ Warning: Changing the Panel Type setting in the service menu can cause the screen to malfunction. Do not edit it without knowing the matrix model accurately!

Take a picture of the current parameters on the phone

Connect the TV to the UPS (to avoid failure when the lights are turned off)

Use the original Xiaomi remote (not universal)

Do not change the settings with incomprehensible names (e.g. EEPROM)

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Frequent problems and their solutions

Even after you set up the resolution correctly, users are faced with typical problems.

Problem 1: Black stripes on the sides (Overscan)

Reason: The TV cuts the edges of the image, thinking it's a "service" area.

Decision:

• 📺 On the TV menu: Settings → Image: → Scope → Full-screen.
• 💻 On PC: In graphics card drivers (NVIDIA/AMD) turn off GPU Scaling.

Problem 2: Blurred image in 4K

Reason: The color profile or refresh rate is not selected correctly.

Decision:

• 🎨 Install. YCbCr422 instead RGB frequency-wise 4K@60Hz.
• 🔄 Enable Game Mode in the settings HDMI-port.

Problem 3: TV doesn't see 4K signal from PC

Reason: Outdated HDMI cable or unsupported standard.

Decision:

• 🔌 Use the cable. HDMI 2.0 or later (not more than 3 meters long).
• 🖥️ On PC in the graphics settings, select 4K@30Hz instead 60Hz if the cable does not support high frequency.

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If Xiaomi TV doesn’t recognize 4K from an external device, check the HDMI cable first – 90% of the problems are due to it.

6.Optimizing the resolution for gamers

For owners of PS5, Xbox Series X or gaming PCs, setting the resolution on Xiaomi TV has its nuances.

• 🎮 Regime. LOW LATENCY: Included in Settings → HDMI → Game Mode: Reduces input delay to 10-15 ms.
• 🔍 VRR (Variable Refresh Rate: Supported on Xiaomi models TV Q2 2023 and later. Included in Settings → Image: → Additionally. → VRR.
• 🖥️ ALLM (Auto Low Latency Mode: Automatically switches the TV to game mode when you start a game.

For the PS5, additional settings are:

1. Go to Settings → Screen and video → Video output.
2. Set resolution: 2160p (4K).
3. Turn on 120Hz output (if the TV supports).
4. Activate HDR and 4K Transfer Rate: Automatic.

⚠️ Note: On Xiaomi 2020 TVs (e.g. Mi) TV 4S) 120Hz mode only works with resolution 1080p, not 4K. This is a hardware platform limitation.

7. Update firmware to support new permissions

If your Xiaomi TV doesn’t support the desired resolution (e.g. 4K@120Hz), a firmware update may be required.The process is different for Android TV and PatchWall models:

Method 1: Air Update (OTA)

For most models:

1. Go to Settings → About TV → System Update.
2. Click Check for updates.
3. If a new version is available, confirm the installation.

Method 2: Manual update via USB

If the OTA is not working:

1. Download the firmware for your model from the official Xiaomi website.
2. Unpack the archive and copy the update.zip file to the flash drive (FAT32 format).
3. Insert the flash drive into the TV and go to Settings → About TV → Local Update.

⚠️ Warning: Do not interrupt the update process - this can lead to a "brick" of the TV. If after the update artifacts appeared on the screen, reset the settings to Settings. → System system → Reset to factory.

FAQ: Answers to Frequent Questions