Modern media centers from the Chinese manufacturer have long gone beyond simple screens, becoming full-fledged nodes of the smart home. One of the most popular features remains the ability to broadcast content from a smartphone directly to the big screen without unnecessary wires. Users often face confusion in terms, as the interfaces of the global and Chinese versions of the firmware MIUI for TV are significantly different from each other. Understanding the principles of data transmission protocols will help to avoid unnecessary movements and quickly configure the system.
In this article, we will discuss in detail the algorithms of actions for various connection scenarios, taking into account the features of the Android TV operating system and the proprietary PatchWall shell. You will learn how to activate hidden settings, which applications should be used for iOS and Android, as well as how to solve typical problems with image latency or lack of sound.
Preparation of equipment and network infrastructure
The foundation of a stable wireless video stream is a quality local area network. Both devices, TV and smartphone, must be on the same subnet. This means that they must be connected to the same router. If you have a dual-band router, make sure that gadgets are not spaced at different frequencies, although modern Wi-Fi Direct standards often ignore this limitation, but for classic DLNA this is critical.
Check out the software version of your Xiaomi Mi TV. Manufacturers regularly release patches that improve wireless modules. Go to the settings menu and find the About Device → System Update. Having up-to-date firmware ensures support for the latest codecs and security protocols, which is especially important for iPhone owners using AirPlay.
Signal quality directly affects the resolution of the transmitted image. If the router is far away or the signal is weakened by walls, compression artifacts or connection breaks can be observed. Ideally, use the 5 GHz band to transmit heavy 4K content, as it provides higher bandwidth compared to the congested 2.4 GHz band.
⚠️ Note: Some corporate networks or guest router modes have customer isolation (AP In this mode, devices connected to Wi-Fi cannot see each other, making wireless projection technically impossible.
- 📶 Make sure that both devices have Wi-Fi enabled.
- 🔗 Check that IP-Device addresses are located on the same subnet (e.g, 192.168.1.X).
- 📡 For 4K Preferably, the broadcast network is 5 GHz.
- 🔋 Make sure your smartphone has enough battery power, as video transfers consume energy quickly.
Activation of the feature on TVs with Android TV and Google TV
Most modern models, like the Xiaomi Mi TV Stick or the P1, A2, Q1 series, run a clean operating system from Google. In this environment, the feature is built-in at the system level and is called Chromecast built-in. You don't have to look for individual applications to receive the signal, just adjust the visibility of the device correctly.
To get started, you need to go to the user profile. In the upper right corner of the screen, click on the avatar and make sure you are logged in to your Google account. It is the account binding that allows the smartphone to automatically detect the TV in the list of available devices for broadcasting. If there is no account, the system can offer a guest mode that also supports basic functionality.
Next, check your detection settings. Go to Settings → Apps → Show.Cast (the path may vary slightly depending on the OS version). You can turn on or off mode that allows other devices to control the TV. It is also useful to activate the Guest Mode feature if you plan to often connect friends' phones without adding them to your Wi-Fi network.
Hidden Options for Developer Options
Importantly, the Chromecast protocol works differently than the classic Miracast, which doesn't just duplicate the screen, it streams data over a link, which means that the phone acts as a remote, and the TV itself downloads content from the Internet, which reduces the load on the smartphone battery and provides a more stable picture.
Configure wireless projection in the PatchWall shell
Devices that come with the PatchWall branded shell (often found in versions for China, India, and some European markets) take a different approach: Here, the built-in Mi Remote app or the Wireless Display system service is responsible for the transmission of the image. The interface may differ, but the logic remains similar.
To start the connection standby, look for the Wireless Display app icon on the home screen, which is hidden in the Applications or Tools folder in some versions of the firmware. Once launched, the device name connection will be expected on the screen, which will be visible in the Wi-Fi Direct list on the smartphone.
For iPhone users, the situation is complicated by the lack of native support for AirPlay in older versions of PatchWall. In this case, you need to install a third-party app on the TV from the GetApps store or through the Internet. APK-A file that emulates an AirPlay receiver. Popular solutions are AirScreen or AirPin, which add missing functionality.
- 📺 Run the Wireless Projection app on your TV before searching on your phone.
- 📱 On Android, select “Translation” or “Smart View” in the notification curtain.
- 🍏 For iOS, use the built-in “Screen Replay” after installing the emulator on TV.
- 🔄 If the connection is not established, try restarting the router.
Broadcasting from Android smartphones: step-by-step instructions
The process of connecting an Android smartphone is as unified as possible, but the names of the features differ from one shell manufacturer to another. On Xiaomi devices with a MIUI shell or HyperOS, this feature is called Translation. On Samsung, it is called Smart View, and on Huawei, it is called Screen Projection.
Open the control panel and find the appropriate icon. If it's not on the visible screen, swipe sideways or click three button editing points. Once activated, you'll start looking for available devices on the network. Your Xiaomi TV should appear on the list.
When you first connect, the TV can request confirmation. The TV screen will pop up asking if you want to allow access. Use the remote to select "Accept" or "Accept." Then the image from the smartphone will appear on the big screen. To turn off, just click the "Unplug" button on your phone or the "Home" button on the TV remote.
☑️ Checklist of successful connection
It's worth mentioning the extended screen feature, which is that some models don't just duplicate a picture, but use the TV as a second monitor, which is especially useful for document or spreadsheet work, where the control panel is left on the phone and the main content is displayed on the TV.
⚠️ Note: When broadcasting protected content (DRM) And through a browser or some apps, the TV can display a black screen instead of a video, which is a security limitation, not a device error.
iPhone and iPad connection: AirPlay features
Apple owners face the most questions because the iOS ecosystem is closed. Official support for AirPlay 2 appeared in Xiaomi TVs relatively recently. If your model supports this protocol (usually indicated in the specification or AirPlay 2 logo on the box), then no additional action is required.
To connect, open Control Point on your iPhone (swipe down from the top right corner on new models or swipe up on old ones). Click the Screen Replay icon (two rectangles). Select your TV from the list. If necessary, enter the code displayed on your TV screen on your smartphone.
If native support is not available, the only solution is to install third-party software, and apps like AirScreen or Receiver for AirPlay, available in the app store on the TV, create a virtual receiver, and once you run the app on TV, the iPhone will see it as its native Apple TV.
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To reduce latency when playing or watching dynamic video on your iPhone, try prioritizing device traffic (QoS) in your router settings or switching to the Wi-Fi channel with the least load.
Image quality when using third-party emulators may be inferior to native protocol, there may be small delays in sound or lip desynchronization in movies. This is not critical for viewing photos or presentations, but for movies, it is better to use built-in streaming services directly on the TV.
Comparison of connection methods and technical specifications
Different data technologies have their advantages and disadvantages, and understanding these differences will help you choose the best way to do a specific task. Below is a table comparing the main characteristics of popular protocols used in the Xiaomi ecosystem.
| Protocol | Type of connection | Quality. | Delay. |
|---|---|---|---|
| Miracast | Wi-Fi Direct | Up to 1080p/60fps | Medium |
| Chromecast | Through the router. | Up to 4K HDR | Low. |
| AirPlay 2 | Through the router. | Up to 4K HDR | Low. |
| DLNA | Through the router. | Depends on the file. | Absent. |
Miracast creates a direct connection between devices bypassing the router. This is good for speed, but the phone can't use Wi-Fi for the internet at this point. Chromecast and AirPlay use the router as an intermediary, allowing the phone to stay online and notify incoming calls without interrupting the broadcast.
DLNA stands out: It doesn't broadcast a screen in real time, it sends a link to a file to the TV, and it's perfect for pre-loaded movies, because quality doesn't shrink on the fly, and control stays on the phone.
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The choice of protocol depends on the task: for games and work, Miracast is better, for watching online video — Chromecast/AirPlay, locally — DLNA.
Problem Solving and Diagnosing Errors
Despite the simplicity of the technology, users often find that the TV is not visible in the list of devices. First of all, check whether the antivirus on the smartphone or the firewall on the router blocks local device detection.
If the image twitches or is low resolution, the problem is almost always in the communication channel. Try to approach closer to the router or TV. Interference from microwave ovens or neighboring Wi-Fi networks can also affect the stability of the flow. In the router settings, try changing the broadcast channel.
Lack of sound when you have an image is a common problem when using AirPlay emulators on older TV models. In this case, check the audio settings in the emulator application itself or try changing the audio output format in the TV settings on PCM.
⚠️ Note: If the feature stopped working after the firmware update, the new version may have changed security certificates. Try resetting the network settings on your TV or reverting to the previous version of the software if possible.
- 🔄 Reboot the router, phone and TV.
- 📡 Check if the router is not a speed limit for individual devices.
- 📲 Update your YouTube or Netflix app to the latest version.
- 🛠 In extreme cases, reset the network settings on the TV.