Modern video content standards require TVs to support extended dynamic range, and owners of the Xiaomi Mi TV 4S model often wonder about the correct activation of this feature.A diagonal of 43 inches is optimal for small rooms, but to unlock the potential of the matrix, you need to adjust the software correctly. Many users are unaware that high-detail mode activation often occurs automatically, but only when a number of technical conditions are met.
In this guide, we will discuss all the nuances of working with HDR-You'll learn which cables are needed, how to check the source of the signal, and what hidden settings can affect the brightness and contrast of the image. Sometimes the problem is not the lack of support, but the wrong port or outdated version of the firmware.
Before we get to the specific steps, it’s worth noting that the Mi TV 4S model supports major extended-range formats, including HDR10.However, the base panel brightness can limit the visual effect compared to top-end models. Proper calibration and understanding of screen limitations will help you get the highest possible picture quality from your device.
Verification of support for signal formats and sources
The first step should always be to verify that your video source is indeed transmitting data in HDR format. The Xiaomi Mi TV 4S is able to recognize the signal, but if the console or console produces a regular SDR, the picture will remain standard. Often users forget to check the image output settings on the connected gadgets.
Note the HDMI ports used. Not all the connectors on the back can support the full bandwidth required to transmit a high frame rate 4K HDR signal. Model documentation usually specifies which inputs are optimized for high-resolution multimedia.
How to distinguish real HDR from imitation?
For successful content reproduction, the following conditions must be met:
- ✅ Signal source (PS5, Xbox, Apple TV 4K) must have the output option enabled HDR in-line.
- ✅ Cable HDMI Must be High Speed or Ultra High Speed (usually 2.0 and higher).
- ✅ The file or streaming service viewed must contain a master copy of the HDR.
- ✅ Subscription to streaming service (Netflix, Disney)+) It should be a tariff that supports 4K.
It’s important to understand that Android TV-based built-in Smart TV apps also require separate authorization, and even if the file on the flash drive supports the technology, the embedded player may not recognize the metadata without the appropriate codec.
Configure HDMI ports to work in 4K HDR mode
The key to setting up Xiaomi Mi TV 4S is to activate the extended mode for HDMI ports. By default, the TV can work in compatibility mode, which limits bandwidth and prevents HDR from starting. You need to manually switch the desired port to high performance mode.
Go to the main settings menu and find the inputs section. Different versions of MIUI for TV might call it different, but the logic remains the same. Without this step, the TV will consider the connected device a regular player and will not use advanced dynamic range algorithms.
☑️ Setting up HDMI port
The sequence of actions usually looks like this:
- Press the menu button on the remote and go to Settings.
- Select General or Entry.
- Find the HDMI 2.0 setting or HDMI format.
- Change the value from "Auto" or "1.4" to "2.0" or "Enhanced".
After settings, the screen can blink or go out for a second, which is a normal reaction of the handshake protocol reconnection. If the image is completely lost, perhaps your cable is not coping with the increased load, and it should be replaced with a better one.
Activate HDR through embedded apps and streaming
When using embedded applications such as YouTube or Netflix, the activation process of HDR occurs automatically, provided that there is fast Internet. However, on Xiaomi TVs, there is often a problem when the application does not determine support for the format due to a failure in handshake.
In the YouTube app HDR-The video is tagged with a special icon, but sometimes it doesn't appear. In this case (you can try) reinstall the application or clear its cache. Go to Settings. → Annexes → YouTube → Clear the data and then log in to your Google account again.
⚠️ Attention: When viewing HDR-content through embedded applications, make sure that the settings of the app itself (within YouTube or Netflix) under the "Video Quality" option are not limited"4K".
Streaming services require stable connectivity. 4K HDR content requires a speed of at least 25 Mbps. If the speed drops, the service will automatically reduce the quality to SDR to avoid buffering, and the HDR indicator will disappear.
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Use an Ethernet cable instead of Wi-Fi to view heavy 4K HDR content. A wireless connection often gives speed surges, which can degrade to Full HD.
Use of external players for local files
If you are watching movies from a hard drive or USB-The storage device, built-in player Mi TV 4S Xiaomi's standard video player often can't read metadata HDR10 containerized MKV or MP4, color-painting.
The solution is to install third-party software, and the leader in this area is the VLC for Android or MX Player app with connected codecs, which take the responsibility of decoding the video stream and correctly transmit the signal to the TV matrix.
Once the VLC is installed, the player automatically determines the file format. If the colors are saturated and the HDR icon appears in the corner of the screen (or in the playback information), then everything is set up correctly. In the settings of the player itself, you should also look in the "Video" section and make sure that the "hardware acceleration" ticks.
| Player. | Support for HDR10 | Support for Dolby Vision | Resource intensity |
|---|---|---|---|
| Built-in player | Partial | No. | Low. |
| VLC for Android | Yes. | Limitedly. | Medium |
| MX Player Pro | Yeah (with codec) | No. | Medium |
| Kodi | Yes. | Yeah (setting) | Tall. |
Manual image calibration for HDR content
Even with automatic mode switching, the factory image settings on the Xiaomi Mi TV 4S may not be perfect. Standard or Bright mode often raises the color temperature, making the picture unnaturally cold. Mode "Movie" or "Film" is best for HDR.
Go to the image settings and select the appropriate profile. If you don't have this option with an active HDR signal, try manually lowering the color temperature to "Warm 1" or "Warm 2." This will bring white closer to the D65 standard, which is critical for the correct perception of the director's idea.
Local Dimming can be aggressive in this model, so if you notice a halo around bright objects on a dark background, try turning it off or minimizing it, which will improve the uniformity of the image, although it will reduce contrast slightly.
The solution: Why HDR doesn’t work
If after all the manipulations, the HDR indicator does not light up, the problem may lie in the version of Android TV. Old firmware may have bugs in working with HDCP 2.2. Check for system updates in the Settings menu → About TV → System Update.
Also a frequent reason is the use of HDMI-And if the signal is going through the sound amplifier, it has to support the transmission. HDR-Try connecting the source directly to the TV to eliminate the impact of intermediate equipment.
⚠️ Attention: Some HDMI-cables longer than 3 meters may not provide stable transmission 4K HDR signal, even if labeled as High Speed, use active cables or fiber optic for long distances.
In rare cases, a complete factory reset will help, which will remove all conflicts in the software, but will require reconfiguring all accounts and applications. Before resetting, make sure you remember the login details to your Google account.
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If HDR doesn’t turn on with any source, it’s likely a problem in the hardware of HDMI ports or requires a USB flashing of the TV.