Duplication of screen on Xiaomi Mi TV 4S: all ways to connect and configure

Xiaomi Mi TVs TV 4S They support several wireless screen duplication technologies, but many users have difficulty connecting first. TV Q2 or P1), bal 4S-This article will help you understand how to properly activate screen duplication (or screen mirroring) on your device – whether it is an Android smartphone, iPhone or computer.

We'll look at all the available methods, from standard Miracast to alternative solutions like DLNA or AirPlay (through third-party applications), and we'll focus on the hidden settings in PatchWall firmware, which are often overlooked even in official instructions. If your TV doesn't see the backup device, at the end of the article you'll find a troubleshooting checklist.

What duplicating technologies supports Xiaomi Mi TV 4S

The Mi TV 4S (L43M5-5AIN, L50M5-5AIN and similar) is equipped with built-in support for the following protocols:

• 📱 Miracast is a wireless duplication standard for Android devices (including Xiaomi, Samsung, Huawei) that works without the Internet, but requires compatibility with the source device.
• 🖥️ DLNA — streaming media files (photos, videos, music) from your phone or PC, does not duplicate the screen completely, but allows you to view content.
• 🍎 AirPlay – not natively supported, but can be activated through third-party apps (more on this below).
• 🔌 HDMI-CEC — Duplication by cable (if you connect your smartphone through an adapter) USB-C/HDMI).

Important: Mi TV 4S doesn’t support Google Cast (like Android TV or Google TV), so apps like YouTube or Netflix won’t be able to directly stream content to the screen, you’ll have to use Miracast or DLNA to do that.

The table below compares the key features of each method:

⚠️ Attention: On Mi TV 4S If you have firmware older than 2021, you may not have Miracast on the menu, and you may need to update the software (instructions in Section 5).

2.How to turn Miracast on Xiaomi Mi TV 4S: step-by-step instructions

Miracast is the most versatile duplication tool for Android devices, and it's activated by:

1. Turn on the TV and go to the main PatchWall menu (click the Home button on the remote).
2. Open the settings (cog icon in the upper right corner).
3. Select Connection and Sharing → Wireless display.
4. Activate the Wireless Display (Miracast) switch.
5. On your smartphone (Xiaomi, Samsung, etc.) open Settings → Connections → Transfer to the screen (or Smart View, Screen Mirroring).
6. In the list of available devices, select your Mi TV 4S (the name will be the MiTV-XXXXX type).

If the TV is not on the list:

• 🔄 Reboot both devices.
• 📶 Make sure your smartphone and TV are connected to the same Wi-Fi network (even if Miracast is not connected to the Internet, sometimes it is required for detection).
• 🔧 Check if the developer mode on the TV is turned on (instructions in the next section).

Devices on a single Wi-Fi network|Miracast is included in the TV settings|On the smartphone activated mode "Switching to the screen"|Television and phone rebooted-->

⚠️ Attention: Some firmware has the Wireless Display option hidden:

1. Press the Menu button on the remote for 5 seconds.
2. Enter the 1147 (service menu) code.
3. Find Advanced Settings → Miracast Enable and set the value of On.

3. Setup DLNA for transferring media files

If Miracast doesn’t work or you only need to transfer photos/video, use DLNA. This protocol doesn’t duplicate the screen, but allows you to view files from your smartphone on a large screen.

Activation on the TV:

1. Go to Settings → Connection and Sharing → DLNA.
2. Turn on the option Enable DLNA-server.
3. Provide the device name (for example, MiTV4S_LivingRoom).

Connection with Android:

• 📱 Install BubbleUPnP or LocalCast.
• 🔍 In the application, select the file to transfer and click Send to....
• 📺 In the list of devices, select your Mi TV 4S.

For iPhone/iPad:

• 🍎 Install. 8player Lite or nPlayer.
• 📂 Select the media file and press Cast.
• 🖥️ Confirm the connection to the TV.

💡

If DLNA does not find the TV, check that the router has enabled the Multicast protocol (in local network settings).

⚠️ Note: When transmitting video through DLNA There will be problems with.mkv formats or HEVC. In this case, use a converter (e.g. HandBrake) to convert to.mp4 (H.264).

4.Duplicate screen from iPhone (AirPlay) on Xiaomi Mi TV 4S

The Mi TV 4S doesn’t officially support AirPlay, but there are workarounds:

Method 1: Through the ApowerMirror application

1. Download ApowerMirror on iPhone and TV (via Google Play on Mi TV).
2. Run the app on both devices.
3. On your iPhone, select Screen Mirroring → MiTV-XXXX.
4. Confirm the connection on the TV.

Method 2: Using an Apple TV (if any)

If you have an Apple TV, connect it to the Mi TV 4S via HDMI and use the standard AirPlay.

⚠️ Note: When using third-party applications for AirPlay, you may experience a delay of up to 500 ms. To sync audio and video, select the Audio Sync option in the application settings and manually select the delay.

5. Update firmware to fix duplication problems

If Miracast or DLNA doesn't work, it could be because of outdated firmware.

1. Go to Settings → About TV → The version of the software.
2. If the version is older than 2.0.195 (for Mi TV 4S 2020), upgrade the TV:

Method 1: By air (OTA)

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

Method 2: Manually via USB

1. Download the firmware for your model from the official Xiaomi website (choose a file with the.zip extension).
2. Unpack the archive and copy the update.zip file to a flash drive (formatted in FAT32).
3. Put the flash drive in. USB-television-port.
4. Go to Settings → System Update → Update via USB.

💡

After the firmware update, reset your network settings on your TV (Settings → Network → Reset) to avoid conflicts with Miracast.

⚠️ Note: If during the update through USB The TV will turn off, it can go to bootloop mode:

1. Turn off the power for 10 minutes.
2. Hold the Power button on the remote + Volume Down button on the TV for 15 seconds.
3. Repeat firmware installation.

6. Solving common duplication problems

If the screen is not duplicated or the connection is interrupted, check the following points:

Additional advice:

• 🔌 If you use HDMI-CEC, turn on the option HDMI Control in the TV settings.
• 📵 Turn off Bluetooth on your smartphone – it can interfere with Miracast.
• 🔄 If the image "breaks", reduce the resolution of duplication in the settings of the smartphone (for example, with the 1080p before 720p).

7. Alternative duplication methods (if nothing works)

If the standard methods don’t work, try:

1.The TeamViewer QuickSupport App.

Install TeamViewer on your TV (via Google Play) and smartphone, which will allow you to control TV from your phone, but not duplicate the screen backwards.

2. Chromecast or Fire TV Stick

Connect an external device (such as Google Chromecast) to HDMI-Port the TV and use it to duplicate it.

3. USB-C cable → HDMI

For smartphones with DisplayPort Alt Mode support (for example, Xiaomi 11/12/13 series), you can use an adapter for direct connection.

💡

If you only need to duplicate for presentations, use Microsoft PowerPoint with the Present Over Network function, which is more stable than Miracast.

FAQ: Frequent questions about Mi TV 4S dubbing