Connecting a Samsung smartphone to a Xiaomi TV opens up a lot of possibilities, from streaming high-resolution video to using TV as a second screen for games or presentations. However, users often face compatibility issues – brands use different wireless protocols, and the Mi TV and One UI interfaces have unique features. In this article, we will analyze all the current ways of connecting (including hidden features), explain why errors such as “Device not supported” can occur, and provide checklists to diagnose problems.
It is important to consider that the methods differ depending on the TV model (Xiaomi Mi TV A2, Redmi Smart TV X, Mi TV Q2, etc.) and the firmware version of the smartphone (Galaxy S23, A54, Note 20). We tested the instructions on devices with Android 13/14 and MIUI TV 3.0+, but most of the solutions are universal. If your TV is released before 2020, check the support for the Miracast protocol in the specifications - some budget models (for example, Mi TV 4A 32) require an adapter for wireless transmission.
1. Miracast (Screen Mirroring) connection - universal method
Miracast is built into most modern Samsung and Xiaomi devices, but its implementation is different. On Samsung smartphones, the feature is called Smart View, and on Xiaomi TVs, the Wireless Display or Screen Mirroring. The main advantage of the method is that the transfer is without delay (latency ~30 ms), which is critical for games or video.
To activate the connection:
- 📱 On the phone: Open the notification panel → Smart View (or Settings) → Connections → Smart View.If you don't have an option, upgrade to One UI last-minute.
- 📺 On TV: Go to Settings → Connection and sharing → Wireless display (on some models path: Settings) → Network → Miracast).
- 🔄 In the list of available devices, select the name of your Xiaomi TV. Confirm the connection on both screens.
If the TV is not on the list, make a diagnosis:
Both devices are connected to the same Wi-Fi network (5 GHz is preferred)|
The TV is on "Visibility for all devices"|
VPN and power saving modes on the smartphone are disabled |
Telephone and TV are no more than 5 meters away.-->
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If Miracast doesn’t work on Xiaomi TV 4S or older, try resetting the network settings: Settings → Network → Network Reset. This often solves device detection problems.
⚠️ Note: On Xiaomi TVs with firmware older MIUI TV 2.5 may require manual Miracast activation via the engineering menu. → The device → Developer parameters → Turn on Miracast (if no item, update TV).
2.Using Smart View (Samsung DeX) for advanced features
Samsung DeX is a mode that converts the TV into a full desktop with mouse and keyboard support, available on flagships (Galaxy S8 and later) and some A-series models (A73, A53, etc.) to connect to Xiaomi TV you will need:
- Connect your phone to your TV via Smart View (as in the previous method).
- In the Smart View menu, select the option "DeX" (appears after the connection).
- Confirm the launch on the TV. The interface automatically adapts to the big screen.
The advantages of DeX:
- 🖱️ Bluetooth mouse and keyboard support (connect directly to phone).
- 📁 Accessing the smartphone file system through an interface similar to Windows.
- 🎮 The ability to run Android games with gamepad control (for example, Call of Duty Mobile or Genshin Impact).
| Model phone | Support for DeX | Features of connection to Xiaomi TV |
|---|---|---|
| Galaxy S22/S23 | ✅ Wireless and wired | Automatic determination of TV screen resolution |
| Galaxy A54/A73 | ✅ Only wirelessly | Can require manual mode selection in Smart View |
| Galaxy Note 20 | ✅ Wired (through wire) HDMI-adapter) | Wireless DeX only works on firmware newer than One UI 4.0 |
| Galaxy S10 and older | ❌ No support. | Third-party software is required (e.g. Second Screen) |
⚠️ Note: When using DeX on Xiaomi TV permittingly 4K You can see artifacts in your image. To eliminate them, select the resolution in your Smart View settings on your phone. 1920×1080 frequency 60 Hz.
3. Wired connection via HDMI (for minimum delays)
If you want maximum stability (for example, for streaming or conferences), wired HDMI is the best choice.
- 🔌 adapter USB-C → HDMI (For modern Samsung or Micro-USB → HDMI (old-model).
- 📺 HDMI-cable 2.0 or higher for support 4K@60Hz).
Instructions:
- Connect the adapter to the phone and HDMI-cable to adapter and TV.
- On the TV, select the HDMI signal source (usually the Source button on the remote).
- On the phone, the notification panel will display a notification about the connection to the external display. Select the display mode (“Duplicate screen” or “Expand”).
Advantages of the method:
- 🎮 Delay less than 10ms (critical for gaming via Xbox Cloud Gaming or GeForce) NOW).
- 🔋 No battery consumption for wireless transmission (the phone can be recharged via an adapter).
- 📺 Support for permits up to 4K HDR (if the adapter and cable meet the standard HDMI 2.1).
What adapters are suitable for Samsung?
5. USB connection (for file transfer and charging)
USB-The connection is suitable for transmitting photos, videos or music to the TV, as well as charging the phone while watching. TV Supports screen display USB — This usually only works for media files.
Instructions:
- 🔌 Connect your phone to your TV via cable USB-A → USB-C (Micro-USB, depending on the model).
- 📺 On the TV, select the source. USB (source button).
- 📂 You'll see a file manager on the screen. Select the media files you want to play.
Limitations:
- 🚫 No screen duplication (only viewing files).
- 🚫 Some Xiaomi TVs require formatting the flash drive into FAT32 reading.
- 🚫 Video format MKV or MOV You may not be able to reproduce (use it). MP4 codeced H.264).
Wireless (Miracast/Smart View) |
Wire (HDMI/USB) |
Wi-Fi Direct|
Haven't connected before.-->
6. Solving common errors
Even with the right connection, there can be failures. Let's look at the typical problems and their solutions:
| Mistake. | Reason. | Decision |
|---|---|---|
| "Device not supported" | Miracast's incompatible protocols | Update your TV firmware to MIUI TV 3.0+ or use HDMI |
| No sound when broadcasting | Restrictions of the app or TV | Enable "Speed Sound" in Smart View settings |
| Image delay (lag) | Weak Wi-Fi signal | Connect to 5 GHz network or use HDMI |
| TV not visible on the list of devices | Miracast is off TV | Check the Wireless Display settings (see Section 1) |
| "Unable to connect." | Firewall locking | Turn off VPN and antivirus on your phone |
If neither method worked, try resetting the network settings on both devices:
- On Samsung: Settings → General Management → Reset → Reset Network Settings.
- On Xiaomi TV: Settings → Network → Reset network settings.
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Write down your Wi-Fi passwords before reset – they will be deleted from both devices!
7. Alternative broadcasting applications
If the standard methods don't work, use third-party applications. We tested the following solutions:
- 🎥 LocalCast: Supports Miracast, Chromecast and DLNA. Allows you to stream local files and streaming videos from websites.
- 🔄 ApowerMirror: duplicates the screen of the smartphone on TV via Wi-Fi. There is a function of controlling the phone from the Xiaomi remote.
- 🎮 Steam Link: Optimized for PC gaming, but works with mobile games via Samsung.
To set up LocalCast:
- Install the app on your phone from Google Play.
- Connect your phone and TV to the same Wi-Fi network.
- Start LocalCast, select a file or link to broadcast.
- In the list of devices, select your Xiaomi TV.
⚠️ Note: Applications like TeamViewer or AnyDesk are not designed to be broadcast to TVs, they put a high load on the processor and cause lags.