Modern multimedia capabilities of smart TVs allow you to broadcast content from mobile devices without the use of unnecessary wires. For owners of the Xiaomi ecosystem, this process is made even easier thanks to the deep integration of the software shells MIUI and Android TV. Connecting a smartphone to a large screen opens up access to watching movies, photos and even launching mobile games with improved graphics.
The main advantage of wireless connectivity is that there are no cable length restrictions and the ability to manage content directly from the phone.Screen Mirroring uses Wi-Fi Direct and DLNA standards to transmit high-resolution video streaming, which saves the user from having to buy additional adapters or set-top boxes if the TV already has an integrated Wi-Fi module.
In this article, we will discuss all the current ways to synchronize devices, consider the nuances of working with Android and iOS operating systems, and pay attention to eliminating typical connection errors. Understanding the principles of LAN will help you set up stable data transfer and enjoy content on the big screen without delay.
Preparation of equipment and network for synchronization
Before setting up, make sure that both your smartphone and TV are in the same connection conditions. A fundamental requirement for most image protocols is to find your gadgets on the same local Wi-Fi network. If your router supports dual-band operation, make sure that both your phone and TV are connected to the same frequency (e.g. 5GHz), although in most cases the router itself correctly routes traffic between customers.
Check the software's relevance on both devices. Xiaomi Mi TVs with PatchWall shell or pure Android TV often come out with updates to improve the stability of the wireless module. Go to the settings menu and find the Settings section → About TV → System Update. Having fresh firmware is critical to support the latest codecs and WPA3 security standards.
⚠️ Note: If you use a guest Wi-Fi network or a corporate Internet with client isolation, the devices will not see each other.
You also need to pay attention to the quality of the signal. 4K If the router is far away, use a Wi-Fi repeater or connect the TV to the router via a router. LAN-This will create a reliable bridge for data transmission.
Use the built-in Mi TV Cast feature on Android
The fastest way to duplicate a Xiaomi smartphone screen on a TV of the same brand is to use the native Mi TV Cast feature, which is built into the MIUI shell and does not require third-party software installation. It is based on the Miracast protocol, which allows you to transmit images in real time with minimal latency.
To activate the function, lower the notification curtain on your smartphone and find the "Translation" or "Cast" icon. If the icon is hidden, click on the editing pencil of the panel and drag it to the active area. Once turned on, search for available devices will begin. Your Xiaomi TV should appear in the list.
☑️ Checking before connection
If the automatic search didn't work, you can manually run the connection through system settings. Go to Settings → Connection and Sharing → Broadcast. You can turn on visibility mode to make sure the TV detects the phone. Once you select the device, you'll see a request for confirmation of the connection on the TV screen, which you need to accept by the remote.
It is important to note that when using this method, the screen of the smartphone and the TV are completely synchronized. Any action you perform on the phone (incoming messages, notifications, opening other applications) will be visible on the big screen. This is convenient for showing presentations or photo albums, but can be uncomfortable when using it in person.
Streaming through Google Home and Chromecast built-in
Most modern Xiaomi TVs run on Android TV, which means built-in support for Google Chromecast technology.This method differs from Miracast in that it allows you to stream content from specific applications without duplicating the entire screen of the smartphone.
To work with this method, a Google Home app must be installed on your smartphone. Once the app is launched, it will automatically scan the network and find your TV. Click on the device icon and select the "Cast my screen" button. The system will warn you that the sound and image from your smartphone will be broadcast to TV.
| Parameter | Mi TV Cast (Miracast) | Google Chromecast | Annexes (DLNA) |
|---|---|---|---|
| Type of transmission | Full screen duplication | Streaming/Duplicate | Media files only |
| Dependence on the phone | High (screen should be on) | Medium (other applications can be used) | Low (phone as remote) |
| Quality. | Depends on the Wi-Fi signal. | Adaptive (up to 4K HDR) | Original file |
| Battery consumption | High-pitched | Medium. | Low. |
The advantage of Chromecast is that it can control playback from your phone as if it were a remote control. You can pause, change the volume, or rewind, and these changes will instantly affect your TV. It's also better optimized for streaming services like YouTube or Netflix, providing a more stable picture.
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If you broadcast through Google Home there is an echo of sound, try in the Bluetooth settings of the phone to turn off the transmission of sound to external devices, leaving only Wi-Fi.
Connection of iPhone and iPad (AirPlay 2)
Apple device owners may be facing compatibility issues as the iOS ecosystem uses its own AirPlay protocol. Fortunately, many Xiaomi TV models officially support the AirPlay 2 standard, allowing you to stream content from iPhone and iPad without installing additional apps on TV.
To check the availability of the feature, make sure that the TV has AirPlay support enabled. It is usually activated by default in the Settings section. → On your iPhone, open the Control Point (swipe down from the top right corner or bottom up, depending on the model) and click the Screen Replay button (two rectangles).
From the list of available devices, select your Xiaomi TV. If this is your first connection, a four-digit code can appear on the TV screen that you need to enter on your smartphone. Once you have successfully authorized, the iPhone screen will fully appear on the TV, which allows you to run any games and applications that support horizontal orientation.
⚠️ Warning: AirPlay is sensitive to router power saving settings. If the broadcast is interrupted, try disabling the Smart Connect feature on the router and splitting the 2.4 GHz and 5 GHz networks into different names.
For older TVs that don’t have AirPlay built-in support, you can use third-party apps available from the Google Play Store on your TV. Popular solutions like AirScreen or AirPin emulate the AirPlay receiver, allowing you to connect Apple devices to any Android TV.
Broadcasting through Video Services Applications (DLNA)
The best way to view video is to use the built-in Translation feature in the player apps themselves. Services like YouTube, Kinopoisk, Netflix or Vk Video use DLNA technology or their own protocols to transfer video streams directly from server to TV, using the phone only as a remote control.
To start the broadcast, open the video in the app on your smartphone and find the Translation icon (a rectangle with waves in the corner). Unlike screen duplication, in this case, the video file is downloaded by the TV directly from the Internet. This means that you can turn off the application, answer the call or even turn off the phone screen - the playback on the TV will not be interrupted.
Why does video slow down when you duplicate the screen?
This method is ideal for watching movies in high resolution, because it eliminates the possible compression artifacts that occur when transmitting a desktop image, and the sound quality is transmitted in full, including surround formats, if your audio system supports them.
It’s worth noting that not all video file formats stored in the phone’s memory are supported by the TV’s built-in player, and in such cases, it’s better to use media center applications like VLC for Android or X-plore, which have a built-in function to send files to DLNA-compatible devices.
Third-party applications for empowerment
If standard tools are not enough or specific functionality is required, such as transferring a screen from a computer or broadcasting a browser, third-party solutions come to the rescue. The Xiaomi TV app store is rich in tools for organizing a multimedia network.
One popular solution is the Web Video Caster app, which allows you to open web pages with video on your phone and send streams directly to your TV, bypassing the limitations of mobile browsers, and supports file playback from cloud storage, such as Google Drive or Dropbox.
- 📱 LocalCast is a powerful tool for transferring local files and streams with support for subtitles and selecting audio tracks.
- 🖥️ TeamViewer for TV — It allows you not only to broadcast the screen, but also to control the TV from a smartphone or vice versa, connect the phone to the TV for remote support.
- 🎮 GameStreamer - specialized applications for streaming games from PC or phone to TV with minimization of input delay (input lag).
When installing third-party software on your TV, pay attention to the permissions requested; broadcast applications require access to the local network and, in some cases, to the file system; and do not install dubious programs from unknown sources, so as not to compromise the security of your home network.
Troubleshooting and troubleshooting
Despite the ease of setting up, users may encounter connection problems, and one of the most common errors is “Device not found,” which almost always indicates that the devices are on different subnets or that one of the gadgets uses mobile Internet instead of Wi-Fi. Check whether the phone is activated with “Traffic Savings” or switching to mobile data when the signal is weak.
Another common problem is the desynchronization of sound and image or periodic delays, which can be caused by congestion of the Wi-Fi radio channel, especially in apartment buildings, in which case switching the router to a less busy channel or using the 5 GHz band, which is less prone to interference, but has a smaller range, helps.
⚠️ Warning: Antivirus programs or firewalls on your smartphone can block outbound connections for broadcasting. If the connection is not installed, try temporarily disabling network protection in the antivirus settings.
If the image looks blurry or has black margins around the edges, check the aspect ratio settings on the TV. In the TV menu, look for Format or Aspect Ratio and select Screen Size or 16:9. Sometimes changing the output resolution in the phone's engineering menu helps, but this requires caution.
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The stability of the wireless connection depends on the quality of the router and the absence of physical obstacles between devices. 4K-content availability of dual-band router (5 GHz) is a prerequisite.