How to turn on permission 4K Xiaomi TV: All the ways + fixing

Xiaomi TVs with support 4K Ultra HD (3840×2160) They can show a very sharp picture, but it's not always automatically activated. 1080p or 720p, Even if the content and source are supported 4K. The reasons may lie in the wrong settings of the TV, restrictions HDMI-cable, outdated firmware, or even features of a particular model (e.g. Mi). TV 4S Requires manual activation for some sources).

In this article, we will discuss all possible ways to include 4K On Xiaomi TVs, from basic menu settings to hidden settings for power users, we'll focus on common errors that don't allow permission to be applied, and we'll checklist you to diagnose the problem. TV Does not give the expected clarity, follow the instructions below and you will be able to fully enjoy the features of Ultra HD.

1. Verification of support 4K Your Xiaomi model TV

Before trying to turn on 4K, Make sure your Xiaomi TV supports this resolution at all.Some budget models (e.g. Mi) TV 4A 32" or Mi" TV 4C) They are not physically able to remove Ultra. HD This is a table below with the popular series and their maximum resolution:

If your model is not in the table, check the specifications on the official Xiaomi website or in the documentation for the device. 4K, for its correct operation is required:

• 🔌 HDMI-cable 2.0 or higher 4K@60Hz — necessarily 2.1).
• 📺 Supported signal source 4K (console, game console, media player).
• 🔄 Activated mode HDMI 2.0 in the settings of the TV (more on this below).

⚠️ Note: On Xiaomi TVs with resolution 4K when connected through HDMI 1.4 maximum permit available — 4K@30Hz. For 4K@60Hz cable HDMI 2.0/2.1 and the corresponding port on TV.

Inclusion 4K via the Xiaomi settings menu TV

The easiest way to activate Ultra HD — Use the TV's built-in settings. The instructions are suitable for most Android models. TV Or PatchWall. Follow the steps:

1. Turn on the TV and press the Settings button (⚙️) remote.
2. Go to Settings → Display and Sound → Screen Resolution.
3. Choose. 3840×2160 (4K). If the option is not available, check the current signal source (see the next section).
4. For PatchWall: Go to Settings → Screen. → Screen mode and set up 4K.

On some models (e.g., Mi) TV 5 Pro) additional adjustment may be required HDMI-port:

1. Connect the device (console, console) to HDMI-port.
2. Go to Settings. → Devices and accessories → HDMI-entrance.
3. Select the port to which the source is connected and activate the Mode option. HDMI 2.0 (or Enhanced format).

Check the TV model for support 4K|

Use it. HDMI-version 2.0 or 2.1 cable|

Update Xiaomi's firmware TV last-minute|

Activate the mode. HDMI 2.0 in port settings-->

If, after these manipulations, 4K It is not included, the problem may be in:

• 🔌 Cable – Try another one certified for 4K.
• 🖥️ Source of the signal – check the settings of the console / console (for example, on Xbox or Xbox). PS5 You need to manually choose 4K display-menu).
• 🔄 Firmware – Older software can block high resolutions.

3.Tune in. 4K externally (HDMI)

Xiaomi TV doesn’t show up often. 4K Not because of its settings, but because of the wrong configuration of the connected device:

🎮 Game consoles (PS5, Xbox Series X|S)

For PlayStation 5 and Xbox Series X|S is required:

1. Connect the console to HDMI-port with 2.1 support (on Mi) TV P1 Xiaomi TV A Pro is ports. HDMI 1 HDMI 2).
2. Go to the console display settings and manually select 4K and 60Hz (or 120Hz, if TV supports).
3. Activate Dolby Vision for the HDR (if the TV supports).

💻 Computers and laptops

When connecting a PC to Xiaomi TV through HDMI:

1. On Windows: Open the settings → System system → Display, select the TV and set the resolution 3840×2160.
2. On Mac: Go to System Settings → Monitors and select Scaled → 4K.
3. If 4K unavailable, update the graphics card drivers (especially relevant for NVIDIA and AMD).

📺 Media Players and Confidence Boxes (Apple) TV, Nvidia Shield, Android TV Box)

For these devices:

• 🍎 Apple TV 4K: Settings → Video and sound → Format → 4K HDR.
• 🛡️ Nvidia Shield: Settings → Display & Sound → Resolution → 4K 59.94Hz.
• 🤖 Android TV Box: Settings → Display → HDMI Mode → 4K.

⚠️ Attention: On the TVs Xiaomi Mi TV 4S when connected through HDMI 1.4. the maximum refresh rate in 4K — 30 Hz. 60 Hz is required HDMI 2.0 and the corresponding port on TV.

💡

If you can't see the TV. 4K from the console, try restarting both devices and changing HDMI-Sometimes it helps to dump. HDMI-port to factory settings (in the Settings menu) → Devices → Reset HDMI).

4. Update firmware for support 4K

Outdated firmware is one of the most common reasons why Xiaomi TV includes 4K. The manufacturer regularly releases updates that correct high-resolution output errors. There are two ways to check and update the software:

🔄 Automatic update via the Internet

1. Open Settings → About TV → Update system.
2. Click Check for updates.
3. If a new version is available, confirm the installation and wait for the reboot.

💾 Manual update through USB

If the automatic update does not work:

1. Download the latest firmware for your model from the official Xiaomi website (support section).
2. Unpack the archive and copy the.zip file to the flash drive (FAT32 format).
3. Put the flash drive in. USB-television-port.
4. Go to Settings. → On TV. → Updating the system → Local Update and Select a File.

After the update, check if the permission has been issued. 4K If the problem persists, reset the settings (see next section).

5. Resetting settings and hidden settings for power users

If standard methods don’t work, try resetting your TV settings or activating hidden options, and note that these actions may result in loss of user data (saved apps, accounts).

🔄 Soft reset (without data loss)

1. Go to Settings. → On TV. → Resetting and remediation.
2. Choose Resetting (not to be confused with Resetting to Factory!).
3. Confirm the action and wait for the reboot.

⚙️ Reset to factory settings (full)

Use this method if the soft reset does not help:

1. Open the Settings. → On TV. → Resetting and remediation → Reset to factory.
2. Enter. PIN-code (default 0000 or 1234).
3. Confirm reset. The TV will reboot and return to its original settings.

🔍 Hidden settings for developers (ADB)

For advanced users: some parameters 4K can be activated through ADB (Android Debug Bridge, for example, if the TV doesn't recognize 4K@60Hz:

adb shell settings put global hdmi_edid_override 1


adb shell settings put global hdmi_mode_auto 0




adb shell settings put global preferred_refresh_rate 60.0

Warning: The wrong commands ADB You can only use this method if you're confident in your actions.

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Reset to factory settings removes all installed apps and accounts. Before the procedure, write down the login / password from Google and Mi Account, if they are tied to TV.

6.Typical problems with the 4K Xiaomi TV

Even after the right setup 4K You can have artifacts, twitches, or no signal. Let's look at the most common problems and their solutions:

If none of the methods worked, the problem may be a hardware malfunction (damaged) HDMI-Port, matrix or main board, in this case, we recommend contacting the Xiaomi service center.

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Check if the TV is actually showing 4K, Use YouTube test videos (for example, search for the video "4K Test Pattern"). If the player's resolution is specified 2160p, So it's working right.

7. Image optimization 4K: HDR, Dolby Vision, Game Mode

Turn on 4K — So, to make the picture look perfect, you have to set up the extra settings:

🌈 HDR Dolby Vision and

For supported models HDR10+ Or Dolby Vision:

1. Go to Settings. → Display and sound → Image mode.
2. Choose. HDR Dolby Vision (depending on the content).
3. For game consoles, activate the Game HDR prefix.

🎮 Game mode (for consoles and PC)

To reduce the input delay (input lag):

1. Activate Game Mode in Settings → Display. → Screen mode.
2. Turn off post-processing: Settings → Display. → Additionally. → Noise reduction: Off..
3. For PS5/Xbox choose 4K@120Hz (if the TV supports).

🔍 Colour calibration

For accurate color reproduction:

• Use built-in presets: Cinema, Sports, Game.
• Calibrate manually: Settings → Display. → Image settings → Color temperature (optimum: Warm or Standard).
• Turn off Auto Brightness if the picture is too dark.

FAQ: Frequent 4K questions on Xiaomi TV