How to sync your phone with a Xiaomi 4S TV: all ways + error solving

Synchronizing your smartphone with your Xiaomi Mi TV 4S offers a lot of opportunities, from watching photos on the big screen to streaming games with minimal latency. However, many users face problems — connection is interrupted, picture slows down, TV just “can’t see” the phone. In this article, we will analyze all the current ways of connecting (including hidden MIUI functions), and also explain how to fix typical errors without going to the service center.

Xiaomi Mi TV 4S

iPhone

Miracast

AirPlay

MIUI TV 3.0+

Android

Wi-Fi Direct

Mi Home

Before you go to the instructions, check two key points:

1. The TV and phone are connected to the same Wi-Fi network (for most methods).
2. The latest firmware version is installed on TV (current for 2026 - MIUI TV 4.0.127+). You can check it in Settings → About TV → System Update.

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1. Connect via Miracast (for Android)

Miracast is a wireless screen transmission standard built into most Android smartphones (starting with version 4.2) and Xiaomi 4S TVs. The main advantage of the method is the lack of latency (latency up to 30 ms), which is critical for gaming or watching high-resolution video.

To activate Miracast on your TV:

1. Open Settings → Connections and Sharing → Wireless display.
2. Turn on the Miracast slider and wait until the TV appears in the list of available devices on the phone.

On a smartphone (by example) Xiaomi/Redmi):

1. Go to Settings → Connections and Sharing → Screen Transfer.
2. Select your Mi TV 4S from the list. If the device doesn't show up, upgrade your phone's firmware or reboot both gadgets.

⚠️ Note: Some Samsung and Huawei models may call Miracast Smart View or Wireless Display, and make sure the TV is power-saving off, which can interrupt the connection.

Telephone and TV on the same Wi-Fi network|Miracast is enabled on both devices|The phone's off. VPN|Distance between devices not more than 5 meters-->

Important: If after connecting the phone screen is displayed with artifacts (strips, torn edges), try manually set the resolution in Miracast settings on TV. The optimal value for Mi TV 4S 55" - 1920×1080@60Hz.

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2.Using Wi-Fi Direct (direct connection)

Wi-Fi Direct allows you to connect your phone and TV directly, without a router, a method that is useful if you don’t have Wi-Fi access or the router blocks multicast traffic (which is often the case on public networks).

Instructions for Xiaomi Mi TV 4S:

1. On TV: Settings → Network and Internet → Wi-Fi Direct → turn on the function.
2. On your phone: open Settings → Wi-Fi, click Additional → Wi-Fi Direct (on Xiaomi, the path may differ: Settings → Connections → Wi-Fi Direct).
3. Select your TV from the list and confirm the connection on both devices.

After you connect, you can:

• 📱 Transfer files via Mi Home or File Manager.
• 🎮 Use your phone as a gamepad for TV games (e.g., in the NVIDIA GeForce NOW).
• 📺 Duplicate the screen through apps like ApowerMirror (requires installation on both devices).

⚠️ Note: When using Wi-Fi Direct, the TV is temporarily disconnected from the Internet. If you need to stream content from the network at the same time (for example, YouTube), use Miracast or Google Cast.

💡

If Wi-Fi Direct is not working, try resetting your network settings on your TV: Settings → System → Reset → Reset Network settings. This will delete all saved networks, but often solves connection problems.

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Connection via HDMI (wired method)

If wireless methods cause delays or are unstable, HDMI-Connection is the best solution:

• 📱 Smartphone with support USB-C/HDMI (Most of Xiaomi’s flagships since Mi 9).
• 🔌 adapter USB-C → HDMI (For example, the original Xiaomi USB-C to HDMI or Anker certified).
• 🖥️ HDMI-cable (included in the TV set).

Step-by-step:

1. Connect the adapter to your smartphone and then connect it to the TV via HDMI-cable HDMI 1/ARC on Mi TV 4S supportive 4K@60Hz).
2. On the TV, select the appropriate signal source (HDMI 1).
3. A request for permission to transfer an image may appear on the phone - confirm it.

Advantages of the method:

⚠️ Note: On some smartphones (for example, POCO X3) upon HDMI-It's normal, because the control will only be available through TV. To return the sensor, disconnect the cable.

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4. Synchronization through applications (Mi Home, Google Cast)

If the built-in methods don't work, third-party apps will come to the rescue, and let's look at two of the most reliable options.

Method 1: Mi Home (for the Xiaomi ecosystem)

• 📲 Install Mi Home on your phone and log in to the same account with the TV.
• 🔗 In the app, select your Mi TV 4S device-list.
• 🎛️ In the TV menu will appear the option Transfer screen – activate it.

The advantage of this method is the ability to control the TV from the phone (adjust volume, switch channels).

Method 2: Google Cast (for Android/iOS)

Xiaomi 4S Android TVs support Google Cast (similar to Chromecast) to use:

1. Make sure that the TV is turned on Google Cast (Settings → Devices → Screen Transfer).
2. On your phone, open a supported app (such as YouTube or Google Photos) and click the Cast icon (📡).
3. Select your Mi TV 4S from the list.

AirPlay is also available for iPhone, but only on TVs with MIUI TV 3.0+ firmware.

Settings → Apple AirPlay → Enable AirPlay

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5. Solving synchronization problems

If your phone is not connected to the TV, check the following points:

Problem 1: Devices can't find each other

• 🔄 Reboot your phone and TV (hold the power button on the TV for 10 seconds to shut down completely).
• 📶 Make sure both devices are connected to the same 2.4GHz network (5GHz networks may not support multicasting).
• 🔧 On the router, turn off the function AP Isolation – it blocks the interaction of devices on the network.

Problem 2: Delayed image or sound

Problem 3: No sound when transmitting the screen

If the image is transmitted, but the sound is transmitted through the phone:

1. On Android: In the notification bar, click on the screen transfer icon and select Transmit sound to TV.
2. On iPhone: swipe up for Control Point → hold the Playback block → select Mi TV 4S.

💡

If none of these methods work, try resetting the network settings on your TV: Settings → System → Reset → Reset network settings. This will delete all stored Wi-Fi passwords, but often resolves connection issues.

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6 Additional features after synchronization

Once successfully connected, you can use your phone not only to duplicate the screen, but also to:

Television control

• 🎮 Use your smartphone as a gamepad for gaming (via Steam Link or Moonlight).
• 🔊 Customize sound: equalizer and modes Home cinema / Night mode are available in Mi Home.
• 📝 Enter text from the phone keyboard (convenient for searching in YouTube or TV browser).

Streaming content

You can stream from your phone to TV:

• 🎬 Movies in 4K HDR through VLC or Kodi (without loss of quality).
• 🎵 Music from Spotify or Apple Music with on-screen visualization.
• 📷 Photos and videos in original resolution (via Google Photos or Xiaomi Gallery).

Using TV as a monitor for PC

If you connect your phone to your PC via USB and activate Developer Mode, you can display the image from your computer to Mi TV 4S via your phone (it is useful for presentations or remote work).

💡

For gamers: if you play through Miracast and notice lags, try turning on the TV Game mode (Settings) → Picture → Picture modes → This will reduce the input delay to 20 ms.

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7. Alternative methods (for advanced users)

If standard methods do not suit, you can use advanced solutions.

Method 1: Connecting via ADB (for Android)

This will allow you to control the TV from the phone at the system level.

1. Enable USB Debugging on TV (Settings → About TV → Software Version → Press 7 times on Software Version, then go back to Settings → Developers → Debugging by ADB).
2. Connect your phone and TV to the same network and use the command: adb connect [IP-TV address]:5555
3. Install on the phone ADB AppControl for remote control.

Method 2: DLNA-file-streamer

If you need to transfer media files without duplication of screen:

1. On your phone, install BubbleUPnP or Plex.
2. On the TV, open the Media Player and select your phone as the source.

Method 3: Using Scrcpy to control TV from your phone

This app allows you to control Android TV from your phone as from a touchpad:

scrcpy --tcpip=[IP- TV address]:5555

⚠️ Attention: Methods using ADB Incorrect commands can cause a failure of the TV system. Before experimenting, back up your TV settings in Settings. → System system → Backup.

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FAQ: Frequent questions