Setting up 4K Xiaomi TV: from basic parameters to fine optimization

Xiaomi TVs (Mi series) TV 4S/5X/6X, Redmi Smart TV and others support the authorization 4K Ultra HD (3840×2160), But often users face problems: the image is "soapy", no HDR, or the TV doesn't recognize 4K-- The signal is from the console/computer. HDMI-port, system parameters or signal source limitations.

In this article, we will analyze the step-by-step setting 4K on Xiaomi TVs, taking into account the nuances of firmware MIUI TV From basic resolution activation to fine calibration of color reproduction and refresh rate, everything you need to create a perfect picture.

Not all Xiaomi models support 4K@60Hz. For example, Mi. TV 4A (2018–2019 d.) limited by authorisation 3840×2160@30Hz, Mi TV Q1/Q2 redmi MAX 98" work 4K@120Hz (For game consoles, check the specifications of your model on the official website or in documents.

Also check the firmware version: in old builds MIUI TV (below 2.0.150) there may be no manual settings HDMI. Update the software before you start – it will save 80% of the problems with the 4K.

1. Compatibility Check: Does your Xiaomi TV support 4K?

Before you set up, make sure your TV is physically capable of playing. 4K. For that:

1. Find the model on the back (e.g. Mi) TV 5X 55" or "Redmi Smart" TV X50).

2. Check the specifications on the Xiaomi website or in the documentation.

• 🔹 Maximum authorization: 3840×2160 (4K UHD) or 4096×2160 (4K DCI).
• 🔹 Upgrade frequency: 30 Hz, 60 Hz or 120 Hz.
• 🔹 Support HDR: HDR10, Dolby Vision, HLG.
• 🔹 Version HDMI: port HDMI 2.0 higher up 4K@60Hz, HDMI 1.4 — only 4K@30Hz.

If your model does not support 4K, If you're going to make a difference, consider upgrading or using an external one. 4K-Upscaler (for example, Xiaomi Mi Box S).

⚠️ Note: Xiaomi TVs with Full Resolution HD (1920×1080) (Like Mi. TV 4A 32") physically incapable of displaying 4K.Attempts to force 4K output will result in a black screen or downgraded quality.

2.Tune in. HDMI-port 4K-signal

Frequent error - connection 4K-source (prefixes, PC) to the wrong HDMI-On the TVs Xiaomi usually has a port:

• 🔌 1–2 port HDMI 2.0/2.1 (support 4K@60Hz, HDR).
• 🔌 1–2 port HDMI 1.4 (limited 4K@30Hz full HD).

Ports HDMI 2.0/2.1 usually marked HDMI ARC or HDMI (4K). If there is no marking, check the TV menu:

How to determine the version HDMI-port on Xiaomi TV:

1. Go to Settings. → Devices and accessories → HDMI-entrances.
2. Select an active port (for example, HDMI 1).
3. See Max's line, resolution or version HDMI.

If the port only supports HDMI 1.4, But you need 4K@60Hz, Use an adapter HDMI 2.0 → HDMI 1.4 (Orea, for example. HDR-4K60) Or connect the source to another port.

Use high-speed cable HDMI (certified for 18 Gbps)

Connect the source to the port HDMI 2.0/2.1

Set the regimen on HDMI-UHD TV-setting

Update the source firmware (prefixes / PC)-->

Activation 4K TV settings

Even if the source sends 4K-The signal, the TV can automatically lower the resolution to Full HD. To avoid this:

Step 1. Turn on the mode. UHD for HDMI:

1. Open the Settings. → Display and sound → HDMI-entrances.
2. Select the port to which the source is connected (for example, HDMI 1).
3. Activate options: 🔘 Regime. UHD (or 4K-regime) → On. 🔘 HDMI 2.0 → On (if any) 🔘 Color range → 4:4:4 (for PC) or 4:2:0 (for consoles).

Step 2: Set the permission at the source:

• 🎮 Game consoles (PS5/Xbox): In the console menu, select Settings → Screen and video → Permission → 2160p.
• 💻 Computer (Windows/macOS): In the screen settings, set 3840×2160 frequent 60 Hz.
• 📺 Media consoles (Apple) TV, Nvidia Shield: Turn on 4K SDR/HDR and Compatible regime HDMI.

If, after activation, 4K Image flickering or disappearing, try it:

1. Reduce the refresh rate to 30 Hz (in source settings).
2. Shut down. HDR in the TV menu (Settings) → Display. → HDR → Off.).
3. Use the other HDMI-Cable (recommended Premium Certified Cable).

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If the TV can't see 4K-PC signal, try to manually add permission via NVIDIA Control Panel (for video cards) NVIDIA) Custom Resolution Utility (CRU) for Intel/AMD.

4. Optimization of image quality: HDR, colour

Activation. 4K — So, to make the picture look realistic, we'll adjust the extra parameters:

Inclusion HDR:

HDR (High Dynamic Range expands the range of brightness and colors, but requires:

• 📺 Compatible TV (HDR10 Or Dolby Vision).
• 🎮 Supported source HDR (console, console, PC with HDR-monitor).
• 🎬 Content in format HDR (Netflix, YouTube, Blu-ray UHD).

How to turn it on HDR Xiaomi TV:

1. Go to Settings → Display and sound → Picture → Additional.
2. Activate: 🔘 HDR → On. 🔘 Dolby Vision → Includes (if maintained). 🔘 Autobrightness → Off (for manual adjustment).

Conclusion HDR

Calibration of flowers:

Use test patterns for fine-tuning (e.g. from YouTube on request "4K HDR calibration test”). Basic parameters:

For automatic calibration, use the built-in Settings tool → Display. → Screen calibration (available on MIUI TV 3.0+).

⚠️ Note: On Xiaomi TVs with a matrix VA (Like Mi. TV Q1) viewing HDR angled >30° You can fade colors and lose contrast. For a better viewing angle, place the TV at eye level.

5. Resolving problems with 4K: artifacts, lags, lack of signal

If, after setting up, 4K If you are experiencing problems, use this diagnostic table:

Additional steps for problems:

• 🔄 Resetting settings HDMI: Settings → Devices → HDMI-entrances → Reset.
• 🔌 Cable Check: Use a cable labeled High Speed HDMI or Premium Certified.
• 📥 Update: Install the latest firmware for TV and signal source.

Critical information: On TV Xiaomi Mi TV 4S (2019 (d) with firmware below 1.4.65 activated 4K@60Hz Possible overheating of the chipset, leading to automatic shutdown HDMI-Update the software to the port version 2.0.150+, to avoid it.

6.Tune in. 4K game console (PS5, Xbox Series X)

Xiaomi TVs with support HDMI 2.1 (Like Mi. TV Q2 75") allow 4K@120Hz and VRR (Variable Refresh Rate for gaming consoles to activate these features:

For PS5:

1. Connect the console to the port HDMI 2.1 (usually) HDMI 3 or HDMI ARC).
2. In the settings PS5 Go to the Screen and Video → Video output.
3. Install: 🔘 Permission → 2160p. 🔘 Frequency of update → 120 Hz (if TV is supported). 🔘 VRR → Includes (for smoothness of image). 🔘 ALLM (Auto Low Latency Mode) → On (reduces input delay).

For Xbox Series X:

1. Open the Settings. → General. → TV and display settings.
2. Choose. 4K UHD activate: 🔘 Dolby Vision for games (if TV is supported). 🔘 120 Hz (required) HDMI 2.1). 🔘 VRR and ALLM.

If the console doesn’t offer 120Hz mode, check:

• 🔌 Port connection HDMI 2.1 (not 2.0!).
• 📋 TV settings: Settings → Display. → Game mode → On..
• 🔄 The TV firmware version (update to the last one).

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For gaming consoles, it is a priority to use HDMI 2.1 — He's the only one who supports him. 4K@120Hz and VRR. Ports HDMI 2.0 limited 4K@60Hz.

7. Viewing. 4K-content: Netflix, YouTube, IPTV

To watch movies and videos in 4K, It's not enough to set up a TV, it's about compatible content and subscriptions:

7.1. Netflix:

• 🎬 Premium subscription is required (Standard does not support) 4K).
• 📺 The TV must have a Netflix certificate. 4K HDR (Check the specifications of the model).
• 🔍 In Netflix settings, select Higher (Ultra) HD 4K) in the section Quality of reproduction.

7.2. YouTube:

• 🎥 The video should be uploaded to 4K (check the badge 2160p player-on).
• 💻 Use the built-in YouTube or SmartCast app to watch on TV.
• 🔊 Turn it on. VP9 Profile 2 in YouTube settings (for the HDR).

7.3. IPTV and satellite TV:

• 📡 For 4K Receiver with support HEVC (H.265) and a channel broadcasting UHD (For example, Tricolor. 4K, NTV-Plus 4K).
• 🔌 Connect the receiver to the port HDMI 2.0 and set the output in its settings: 2160p.

If 4K-The content is not being played or slowed down, check:

1. Internet speed (for streaming required) ≥ 25 Mbps).
2. In-app quality settings (e.g. Netflix: Settings) → Reproduction quality).
3. Updates for apps (in Mi App Store or Google Play).

8 Additional functions: MEMC, Dolby Atmos, Movie Mode

Besides the basic 4K, Xiaomi TVs offer advanced features to improve the picture and sound:

8.1. MEMC (Motion Estimation, Motion Compensation):

Motion smoothing technology, useful for sports and action, but can add a soapy effect to the movie.

1. Go to Settings. → Display and sound → Picture → Engine processing.
2. Choose: 🔘 For movies (natural movement). 🔘 Low for sport (moderate smoothing). 🔘 High for low quality video (increased) FPS).

Dolby Atmos and sound modes:

For a full-fledged theatrical sound:

• 🎧 Connect the soundbar or AV-receiver HDMI ARC/eARC.
• 🔊 In the sound settings, select: 🔘 Sound mode: Movies (for movies). 🔘 Dolby Atmos: On (if supported by source). 🔘 Exit HDMI: Bitstream (to transmit sound to the receiver).

Mode of the cinema (Cinema Mode):

Optimizes color gamut and contrast for watching movies:

1. Open the Settings. → Display and sound → Picture → Image mode.
2. Choose Movie or Dolby Vision Dark (for dark scenes).
3. Turn off Auto Brightness and Dynamic Contrast for a natural picture.

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To calibrate the sound, use the Dolby test tracks, set the volume to keep the dialogue clear and the bass deep, but not drowning.

FAQ: Frequent questions about setting up 4K Xiaomi TV