How to connect Xiaomi Mi TV 4A to your computer: all ways + fixing errors

Connecting Xiaomi Mi TV 4A to your computer opens up a lot of possibilities, from simple file transfer to using the TV as a second monitor or controlling it through specialized utilities. However, many users face difficulties - the TV is not detected, files are not copied, and the screen remains black when trying to duplicate. In this article, we will analyze all the current ways of connecting (including hidden MIUI TV functions) and give specific solutions for typical errors that are not described in the official documentation.

It is important to understand that Xiaomi 4A — It’s not just a TV, but a full-fledged Android device. TV So, standard methods of connection (as for conventional communication protocols) USB-And the drives don't work here often. We tested all the drives on the models. 4A 32" (L32M5-5ARU), 43" (L43M5-5ARU) and 50" (L50M5-5ARU) with the latest versions of firmware - instructions are relevant to 2026 The year and take into account changes in the security policy of Xiaomi.

1. Connection through USB-cable: files and debugging

The most obvious, but not always working way. - Xiaomi Mi TV 4A supports two regimes USB-connection: MTP (Media Transfer Protocol for file transfer and ADB (Android Debug Bridge for debugging. By default, only enabled MTP, But even it may not work because of the drivers or settings of the TV.

To connect:

• 🔌 Use the cable. USB-A → USB-A (The original cable from the kit is preferable - cheap analogues may not transmit data.
• 📺 On the TV, go to Settings. → The device → Device information → Software information and 7 times click on the Build Number to activate the developer mode.
• 🔧 Back to Settings → The device → Developer settings and include: Debugging by USB Installation through USB (if you plan to install APK)
• 🖥️ Connect the cable to your PC. Windows may need to install a driver ADB Interface (download from Google website).

If the TV is not detected:

⚠️ Note: On some versions MIUI TV plug-in USB You get a debugging authorization request, you need to confirm it within 30 seconds, or the connection will break.

Check the cable for damage.|Activate the Developer Mode|Put the debugging on. USB|Install the driver. ADB PC-only|Restart the TV after the changes-->

2. Wireless Wi-Fi connection (Mi Home, FTP, DLNA)

If wires aren't your option, the Xiaomi 4A supports several wireless data protocols.

• 🌐 Mi Home (Mi TV Assistant, the official app from Xiaomi for controlling a TV from a PC, allows you to transfer files, duplicate the screen and even use the TV as a webcam.
• 📂 FTP-Server – built-in Android function TV. Once activated, you can connect to your TV as a network drive via FileZilla or Windows Explorer.
• 🎬 DLNA/UPnP — It's a media streaming service. VLC, Kodi or standard Windows Explorer (Network tab").

How to set up FTP-server 4A:

1. Install the FX File Explorer app (or similar) from Google Play on your TV.
2. Open the application, go to the Network → FTP-server and run it.
3. Remember the address of the species ftp://192.168.x.x:2221, login.
4. On a PC in Explorer, enter this address in the address bar or use FileZilla.

USB-cable|Wi-Fi (Mi Home/FTP)|HDMI|Not plugged in.-->

3. Connection as a second monitor (HDMI, Miracast, Steam Link)

Whether you need to duplicate your PC screen on your TV or use the Xiaomi 4A as an optional monitor, there are three working options:

• 🖥️ HDMI-cable is the most stable method, suitable for gaming, documenting and watching high-resolution video — 1920×1080@60Hz).
• 📶 Miracast (Wi-Fi Direct) — wireless screen duplication. runs on Windows 10/11 And Android. 4A Enable Miracast in Settings → Display and sound → Wireless display.
• 🎮 Steam Link — if you're a gamer, it's the best way to stream games from your PC to your TV. Install the Steam Link app on your TV and run it on your PC.

How to set up HDMI-connection without problems:

1. Use an HDMI 2.0 cable (or higher) to support 4K/HDR, if your TV allows it.
2. On PC, press Win + P and select Expand or Duplicate mode.
3. If the image does not appear, check the source of the signal on the Xiaomi remote (Input button or Source).
4. For correct sound in Control Panel → Sound, select the TV as the output device.

⚠️ Note: When connecting through HDMI on some Xiaomi models 4A There may be a delay of up to 200 ms. Solution: in the TV sound settings, select Game mode or turn off sound processing (Settings) → Sound. → Additionally. → Sound processing: Off.).

4. Access to system files via ADB (for experienced)

If you need root access or unofficial firmware, ADB connectivity is the only option, and it requires command line knowledge and may be insecure, but it gives you full control of the system.

Step-by-step:

1. Install Android Platform Tools on PC (includes adb and fastboot).
2. Connect the TV via USB and check the connection command: Adb devices should appear serial number of the device.
3. For wireless ADB Adb tcpip 5555 adb connect 192.168.x.x:5555 (where 192.168.x.x — IP-TV address).
4. Now you can execute commands, for example, to install APK: adb install path/to/file.apk

Useful. ADB-teaming 4A:

• adb shell pm list packages – list of installed applications.
• adb shell screencap -p /sdcard/screen.png - screenshot.
• Adb shell input keyevent 3 is a simulation of the Home button.

5. Solving common problems

Even with the right connection, errors can occur, and here are the exact solutions for the most common cases:

If the TV is not turned on after connecting to the PC, check:

• 🔌 The food source is some USB-PC ports do not produce enough current.
• 🔄 Regime. HDMI — On the remote, press Input and select the correct port.
• 🔧 Energy saving settings - in Settings → Screen. → Sleep mode disable automatic shutdown.

💡

If the TV is not visible on the network (for FTP/DLNA), check that it and the PC are on the same subnet. For example, if the IP of the TV is 192.168.1.100, then the IP of the computer must be 192.168.1.x.

6. Alternative methods: cloud services and third-party utilities

If standard methods do not work, workarounds can be used:

• ☁️ Cloud storage (Google Drive, Mi Cloud) – upload files to the cloud from your PC, then download them to your TV via your browser or app.
• 📱 Intermediate device – copy files to your smartphone, then transfer them to your TV via Mi Share or Nearby Share.
• 🖧 TeamViewer QuickSupport — if you want to control the TV remotely, install the app on the TV and connect from the PC.
• 🐧 Linux solutions are for advanced users, and you can use ssh or scrcpy to get full control of your TV.

Example of using scrcpy to manage Xiaomi 4A from PC:

1. Install scrcpy on PC (official repository).
2. Connect the TV to USB and allow debugging.
3. Run the command: scrcpy --bit-rate 8M --max-size 1920 (for better image quality).
4. Now you can control the TV from the keyboard and the PC mouse.

💡

For transferring large files (films in 4K, backups), it is better to use FTP or USB 3.0 connection - wireless protocols (DLNA, Mi Share) can limit speeds to 5-10 MB / s.

FAQ: Frequent questions about connecting Xiaomi 4A to PC