How to turn on HDR on Xiaomi Mi TV 4S

Owners of modern TVs Xiaomi Mi TV 4S Often, we face a situation where content is rich. 4K-The image appears faded and devoid of deep colors, which is because by default the system may not activate an extended dynamic range known as the "Dynamic Range" (DDR). HDR, Understanding how to properly configure this setting is key to unlocking the full potential of your panel.

Activating HDR (High Dynamic Range) on the Mi TV 4S is not just a single button switch on a menu, but a complex process that requires checking the source of the signal and port settings. Unlike older models, it uses the Android TV operating system, which has its own features of processing video streams. We will analyze every step necessary to get a perfect picture.

Before you delve into the menu settings, it’s worth noting that not all content is capable of displaying HDR10 in its entirety.Your job is to ensure the right data chain from the source (console, consoles or applications) to the TV matrix. Errors at any stage will cause you to watch a regular SDR signal despite your best efforts.

Technical features of HDR on the panel Xiaomi Mi TV 4S

Xiaomi Mi model TV 4S based IPS-resolution-matrix 3840×2160 It's important to understand that this TV supports the standard. HDR10 and HLG, It's a fundamental hardware limitation that you can't get around software, so if you see content that's labeled Dolby Vision, the TV automatically converts it to the hardware. HDR10 or SDR.

The brightness of the screen in this model is about 300-350 nits, which is the minimum necessary threshold for the basic perception of the HDR effect. For the full operation of the technology requires that the TV receives a signal with a depth of 10 bits. If the source transmits an 8-bit signal, the expansion of the dynamic range will not occur, and you will see only a simulation.

⚠️ Don’t expect to see Xiaomi Mi. TV 4S the same level of contrast as from OLED-Panels. Technology. HDR It is operating in limited mode due to the physical structure of the backlight. IPS-screen.

The system automatically determines whether HDR-signal HDMI But it's often the case that automation fails, and in those cases, the user has to manually force certain parameters through an engineering menu or a developer setting, which we'll talk about later.

The key element is an image processor that must map colors correctly. Global and EU firmware algorithms may differ from the Chinese version of MIUI for TV, which affects how the TV responds to the incoming video stream.

Checking the compatibility of the signal source

The first step should always be to diagnose the source.Enable HDR on the Xiaomi TV itself doesn't make sense unless your Blu-ray player, console or computer sends the appropriate signal.Make sure your content is actually labeled with the HDR10 or HLG logo.

When using external devices, it is critical to use HDMI 2.0 or higher ports.The rear of the Mi TV 4S usually has several ports, but not all of them can support the full 18 Gbps bandwidth required for 4K HDR at 60 Hz. Often a port labeled as HDMI 1 or ARC takes priority.

• 🎮 Game consoles: In the PlayStation or Xbox videooutput settings, you must manually select Automatic HDR" or forcefully YUV420 or RGB depending on the game's recommendations.

If you use a cable longer than 2 meters, make sure it is certified as High Speed HDMI or Premium High Speed.Cheap cables often can't transmit enough data, and the TV automatically lowers signal quality to SDR, ignoring the HDR request.

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Use HDMI cables labeled "Premium Certified." Conventional cables bundled with cheap consoles often fail to deliver 4K HDR signals over long distances.

Configure HDMI ports for extended range

The Android TV operating system on which Xiaomi Mi TV 4S is based has a hidden or explicit HDMI format setting, which is called HDMI Format or HDMI Color Format in some versions of the firmware. By default, the TV can stand in Standard (8-bit) mode, which blocks HDR.

To access the advanced settings, go to Settings → Device Settings → Image. You need to look for a color or HDMI format item. If you see a choice between 8-bit and 10-bit (or Auto), choose 10-bit or Auto, which will give the port a command to receive and transmit a signal of increased color depth.

Sometimes you need to activate compatibility mode for game consoles. The image settings menu may include the option "Game Mode" or "Game Mode". Enabling it often reduces input lag and simultaneously unlocks HDR support for connected devices such as Xbox Series X or PS5.

It is also worth checking the settings of the external device. For example, on the Apple TV 4K console, you need to go to Settings → Video and Audio → Format and select 4K HDR. If the TV does not support the selected format, Apple TV will warn you about this, but in the case of Xiaomi, manual confirmation is sometimes required.

Activate HDR in built-in Smart TV apps

If you watch content directly through apps installed on your TV, it looks different. Xiaomi's built-in player automatically detects HDR-However, the quality of the decoding depends on the version of the application and the codecs.

For streaming services like Netflix or YouTube, the quality of the Internet connection is critical. 4K HDR requires a speed of at least 25 Mbps to play consistently. If the speed drops, the service automatically lowers the bitrate and can disable HDR to prevent buffering.

In the YouTube app, HDR activates automatically if the video is shot in this format. You'll see an HDR icon in the corner of the player. If it's not there, then either the video doesn't support the format or the TV doesn't recognize the device's capabilities correctly. Try reinstalling the app or clearing its cache through Settings → Apps.

⚠️ Note: Built-in apps on older versions of Android TV They may not support new codecs. HDR. Update apps regularly through the Google Play Store.

Update the system and reset image settings

Often the problem of lack of HDR lies in software errors of the current version of the firmware MIUI for TV. Xiaomi engineers periodically release updates that improve compatibility with new HDR standards and fix color reproduction bugs.

To check for updates, go to Settings → About TV → System Update. If a new version is available, be sure to install it. Before installing, it is recommended to reset the image settings to factory so that the new color profiles are applied correctly.

Settings → Device → Reset → Resetting image settings

After the reboot, the TV will recalibrate the array, which is especially important if you've previously manually rotated brightness and contrast, which could have knocked down automatic HDR activation algorithms.

Diagnostics and Solving Color Translation Problems

It happens that HDR It's kind of on, but it looks faded, gray, or overlit, and it's a sign of a wrong tonal mapping. HDR-signal, but cannot properly display it due to the panel brightness limitations.

In the image menu, try changing the image mode to Standard or Vivid. Cinema or Movie mode often understates brightness to meet theater standards, which on Xiaomi IPS-matrixes can look like the absence of HDR. Game mode usually gives the most honest, though not always the most beautiful, picture.

• 🎨 Color temperature: Set the value "Standard" or "Warm 2." Cold tones can distort perception. HDR-content.
• 🌑 Local dimming: If there is software local dimming in the model, turn it on. This will improve black, which is critical for the model. HDR.
• 📉 Noise reduction: Keep noise reduction to a minimum. Aggressive algorithms can eat up parts in light and dark areas that are important for the environment. HDR.

If nothing helps, it may be a very specific matter. HDMI-Try switching the cable to another connector, and check if the Eco or Energy Saving mode is on, which artificially limits the maximum brightness of the backlight, killing the entire effect of high dynamic range.

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The main problem with faded HDR on Xiaomi Mi TV 4S is often not the lack of support, but the active energy saving mode or the wrong image mode (for example, Cinema instead of Standard).

FAQ: Frequently Asked Questions