Modern Xiaomi TVs, which are powered by Android TV or PatchWall, offer a wide range of multimedia content options, and one of the most popular use cases is wirelessly streaming images from your personal computer or laptop to a large screen, which makes it easy to view photo albums, show presentations to colleagues, or run high-resolution videos without the need for HDMI cables. Wi-Direct and built-in broadcast protocols make this process as simple as possible for the user.
However, despite the apparent simplicity, the setup process can encounter a number of technical nuances, depending on the version of the Windows operating system, router model and TV firmware. In this guide, we will discuss in detail all the current ways to synchronize devices, from native Windows functions to specialized software. The correct network configuration is a key factor in successful connection, so it is worth paying attention to the details of the router configuration.
It is worth noting that the quality of the transmitted signal depends on the load of the wireless channel. If you plan to broadcast content in 4K resolution, make sure that your router supports 802.11ac (Wi-Fi 5) or later, and your computer and TV are in the zone of confident reception. Using a wired Ethernet connection for a TV in some cases can significantly improve the stability of the flow, even if the image is transmitted over the air from a PC.
Network requirements and equipment preparation
Before setting up, you need to make sure that all devices involved in the process are in a single information space. The local area network should be organized so that Xiaomi’s computer and TV can share data packets without the limitations of a firewall or isolation of client devices. Most often, problems arise when gadgets are connected to different frequency ranges of the router with insulation enabled. AP.
Check that both devices are active detection. In Windows, this is managed through network profile settings, and in Xiaomi TV, through system connection settings. For stable operation, it is recommended to use the 5 GHz bandwidth, which provides higher bandwidth compared to the traditional 2.4 GHz, which is critical for transmitting video stream without delay.
- 📡 Make sure your PC and TV are connected to the same thing. SSID (name).
- 🔒 Turn off guest Wi-Fi mode, as it often blocks interaction between devices within the network.
- ⚡ Use a router that supports Wi-Fi 5 (802.11ac) to minimize buffering.
⚠️ Note: If your router has the function of "Isolation of access points» (AP Isolation, image transfer will not be possible. This option must be disabled in the router settings.
It’s also worth updating your wireless adapter drivers on your computer to the latest version. Laptop manufacturers often release patches that improve compatibility with Miracast and DLNA protocols. On the Xiaomi TV side, make sure the system is updated through the Settings menu → About TV → System Update, as newer versions of PatchWall have improved video stream coding algorithms.
Broadcasting through built-in Windows tools (Projection)
The most versatile and quick way to do this, without needing to install additional software, is to use Miracast technology, implemented in Windows 10 and 11 called Projecting. Xiaomi TVs, as a rule, have built-in support for this standard, which allows you to use them as wireless monitors. To activate the function on your PC, press the Win + K key combination, after which the system will start searching for available devices within the network range.
On the TV side, Xiaomi may need to manually run the receiver app. Depending on the regional firmware version (Global or CN), it may be called "Wireless Display", "Miracast" or be built into the Input source menu. Once you select the source, the device name you want to select on the computer's list will appear on the TV screen. The handshake process takes 5 to 15 seconds.
☑️ Checking before connection
After a successful connection, you can choose to work: screen duplication or desktop expansion. Expansion mode allows you to use the TV as a second monitor, transferring application windows to it, which is especially convenient for multi-tasking. If you notice desynchronization of sound and video, try to reduce the load on the processor or switch the refresh rate of the screen in the settings System Settings → Display → Additional display settings.
- 💻 Press Win. + K to call the connection panel.
- 📺 Choose your Xiaomi TV list of available devices.
- 🖥️ Select Repeat or Expand mode depending on the tasks.
⚠️ Note: When using Expand Mode, the mouse cursor may be delayed. This method is not suitable for gaming, use it only for static content or video.
Using the Google Home app for Chromecast
Because Xiaomi TVs are powered by Android TVs, they have built-in support for Google Cast (Chromecast) technology, which allows you to stream the contents of the Google Chrome browser or the entire screen directly through the Google ecosystem. This method requires that the computer has a Google Chrome browser installed and, preferably, the Google Home app for initial setup, although often only the browser is enough.
Open the Chrome browser on your computer, click on the three dots in the upper right corner and select “Cast”. In the menu that opens, select “Cast screen” to transfer an image of the entire desktop, or “Translate tab” if you want to show only the contents of the browser. IP-address and suggest connecting.
The advantage of this method is the high stability of codec transmission, as Google is actively developing this technology. However, it is worth considering that when broadcasting the entire screen through the browser, an additional load is placed on the computer CPU, since the video stream is coded programmatically.
- 🌐 Open the menu in Chrome (three dots).
- 📡 Select the “Translate” option (Cast).
- 🖥️ Switch to the Sources tab and select “All screen».
If the TV isn't displayed in the list of devices, check if the detection service is enabled in the TV itself. Some versions of the PatchWall shell require you to activate the Chromecast built into the application settings section. Also make sure that the antivirus on the PC does not block incoming connections for the chrome.exe process.
Third-party apps: LetsView and AirPlay
In cases where standard protocols are unstable or require advanced functions (for example, control from the phone simultaneously with the broadcast of the PC), you should turn to third-party software. LetsView is one of the most popular free cross-platform image transfer solutions available for installation on a computer (Windows/macOS), So on the Xiaomi TV through the Google Play Store.
Once you install the app on both devices and connect to the same network, run the program. It automatically finds the TV. QR-LetsView offers low latency and high-resolution support, making it a great alternative to built-in Windows. In addition, the application allows you to control your computer from the TV remote, which adds convenience when navigating.
Secrets of a stable connection
For users of the Apple ecosystem (MacBook), the AirPlay protocol is relevant. Xiaomi TVs support AirPlay 2 natively or through the installation of the “AirScreen” application from the Play Market Store. This allows you to transfer images from macOS or iOS devices without wires with minimal latency, using the same coding principles as in the original Apple devices.
- 📲 Download LetsView or AirScreen on TV and PC.
- 🔗 Scan it. QR-fast-pair code).
- ⚙️ Set up the flow quality depending on the WiFi speed.
⚠️ Warning: Free versions of third-party apps may contain ads that will be displayed when you launch. Use official developer sites to download secure versions.
Comparison of transmission methods and technical specifications
The best way to transfer images depends on your specific tasks: whether you need low ping for games, maximum picture quality for photos or just stability for watching videos. Below is a comparative table of the main methods available to owners of Xiaomi equipment, which will help determine the toolkit.
| Method | Delay (Latency) | Image quality | Difficulty setting up |
|---|---|---|---|
| Windows Projection (Miracast) | Medium | High (up to 1080p/4K) | Low. |
| Google Chrome Cast | Tall. | Medium (depending on CPU) | Very low. |
| LetsView / Third-Party | Low/Mediocre | High. | Medium |
| AirPlay (for macOS) | Low. | Very high. | Low. |
As you can see from the table, native Windows tools provide a balance between quality and simplicity, while specialized software can offer better optimization for specific scenarios. To view static images or documents, the difference in latency will not be noticeable, but for dynamic content it becomes critical. The Miracast protocol uses H.264 encoding at the hardware level of the graphics card, which provides the best balance of performance.
It is also important to consider the load on the router. Simultaneous streaming of video in 4K can “clog” the air, especially in the 2.4 GHz band. If you use high-bitrate methods, make sure that other devices in the house do not download heavy files. Ideally, for frequent use of the broadcast, it is worth highlighting a separate guest network or prioritizing TV traffic in the QoS router settings.
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For maximum clarity, use the Expand Screen mode when presenting documents and set Windows to zoom 150% for the second monitor, otherwise the font on the TV may seem too small.
Solving Common Connection Problems
Despite the technology, users may find themselves in a situation where the TV is not visible in the list of available devices or the connection is constantly broken. First of all, check the drivers of the wireless adapter. Often the problem lies in outdated network card software that does not work correctly with the new WPA3 encryption standards. Update the driver through the Device Manager or the website of the laptop manufacturer.
The second common reason is that ports are blocked by an antivirus or Windows firewall. When you first connect, the system can request permission to discover the network — be sure to choose Yes or Private Network. If you previously chose Public Network, Windows hides the computer from other devices for security purposes. You can change the network type in the Wi-Fi connection settings.
- 🔄 Reboot your router, PC, and TV – This Solves 80% of Cache Problems DNS.
- 🛡️ Check the firewall settings for blocking services DLNA/Miracast.
- 📡 Make sure that the router does not include filtering by MAC-address.
If the image is transmitted but the sound is going through the computer speakers, you need to manually switch the audio output device. Click on the speaker icon in the Windows tray, select your playback device (usually called the TV name or "Digital Output") This will redirect the audio stream through an HDMI-like digital Wi-Fi connection channel.
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The stability of wireless broadcasting is 90% dependent on the quality of the Wi-Fi signal and the absence of physical obstacles between the router and the receiver.