With the modern technology of the Xiaomi ecosystem, you can turn a simple video viewing or presentation into an exciting action on the big screen. Connecting your smartphone to your TV via a wireless Wi-Fi network eliminates the need to find HDMI cables and complex adapters, especially for Mi TV and Redmi TV owners, where integration with mobile devices is implemented at a deep system level.
The synchronization process takes only a few minutes, but it requires understanding the basic principles of how the LAN works. IT-It's enough to do a sequence of simple steps described in this manual to enjoy high-resolution content.
In this article, we’ll break down all the current techniques, from the built-in Mi Cast feature to third-party apps and the DLNA protocol. We’ll also touch on the nuances of router configuration, which are often ignored but critical for no delays. If you want to bring a photo, video or even a game to the big screen, this material will be your exhaustive instruction.
Requirements for equipment and network preparation
Before you start setting up, make sure your equipment meets the minimum technical requirements. The key to stable operation is the availability of a Smart TV with support for wireless technology. Most modern models of Xiaomi Mi TV (starting in 2018) and Redmi Smart TV already have the necessary modules.
Particular attention should be paid to the configuration of your home network. For high-quality video streaming (Full HD or 4K), it is critical that both devices are on the same subnet. The ideal option is to use the 5 GHz band, which provides enough bandwidth to stream without buffering.
⚠️ Note: If your router distributes 2.4 GHz and 5 GHz networks under the same name, connection conflicts may occur. For maximum stability, it is recommended to temporarily separate networks in the router settings or force the phone to connect to 5 GHz if it supports this standard.
Also check the version of the MIUI or HyperOS operating system on your smartphone.Outdated software may contain bugs that prevent you from detecting your TV.Updating to the latest available version often solves problems with the visibility of devices on the local network.
Make sure your TV has external connectivity enabled. In the Android TV or PatchWall menu, this can be hidden in the app or network settings section. Without active standby or running a broadcast app, the TV can remain invisible to the smartphone.
Use of the built-in Mi Cast function
The easiest and most native way to broadcast an image is to use Mi Cast technology, which is designed specifically for Xiaomi ecosystem devices and provides minimal signal latency. It is built directly into the MIUI shell, so no additional software is required.
To start, open the control center on your smartphone (swipe down from the top right corner) and find the Broadcast icon or Mi Cast. If the icon is not in quick access, go to Settings → Connection and Sharing → Broadcast. The system will automatically start searching for available devices within Wi-Fi range.
☑️ Checking before connection
When the TV appears on the list, click on it to pair, and you may see a request on the TV to confirm the connection, use the remote to allow access, and then the image from the phone is fully duplicated on the large screen.
It's important to understand the difference between modes of operation. Mi Cast allows you to either mirror the screen (when you can see everything that's happening on the phone, including notifications) or broadcast only content from certain applications. The choice of mode depends on your goals: for games you need mirroring, for watching movies from the gallery, you better choose the second option.
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To reduce latency in games, close the background apps on your phone that consume traffic, such as torrents or cloud photo syncs.
Broadcasting via Google Home and Chromecast
Since many Xiaomi TVs run on Android TV or have a built-in Chromecast, using the official Google Home app is a one-stop solution, which works not only with Xiaomi phones, but with any Android smartphones and iPhones.
Download the Google Home app from the Play Market and launch it. It automatically scans the network and finds your TV. If you find your device, click on its icon. The bottom menu will see a button called Cast my screen.
The advantage of this method is the high stability of codecs and support for a wide range of video formats.In addition, Chromecast allows you to control playback directly from your phone, using it as a remote, which is convenient when watching YouTube or Netflix.
| Method | Delay. | Quality. | Compatibility |
|---|---|---|---|
| Mi Cast | Low. | High. | Only Xiaomi/Redmi |
| Google Home | Medium | Maximum. | All Android/iOS |
| DLNA | No. | Depends on the file. | Media files only |
It’s worth noting that when streaming through Google Home, the phone’s screen needs to be constantly active, which can lead to faster battery drain. Unlike the Mi Cast, which can run in the background for some apps, here the phone actually becomes a source of real-time video streaming.
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Google Home is the best choice for cross-platform connectivity when you need to display your iPhone or third-party Android smartphone screen on Xiaomi TV.
Multimedia Transfers via DLNA Protocol
If your goal is not to mirror the screen, but to simply play a video file or show photos stored in the phone’s memory, the best solution is the DLNA protocol. This method does not put a strain on the smartphone’s processor, since the phone only sends a link to the file, and the TV decodes and plays it yourself.
To implement this method, you will need a DLNA-enabled media player app, such as VLC for Android or the standard Xiaomi gallery. Open the video file, press the Cast button, and select your TV from the Render Device List.
The main advantage of DLNA is that you can lock the phone, put it on charge, and playback on the TV will not be interrupted.It's the perfect scenario for watching long movies or listening to music when the phone is no longer needed.
Why does DLNA not see some video formats?
But there are limitations to this method: you can't control the interface of the phone from the remote, and you can't stream the content of browsers or social networks, and it's (exclusively) a tool for working with local media files.
Setup via Xiaomi TV Assistant
For deeper integration and control of the TV from the smartphone, there is a specialized application Xiaomi TV Assistant (formerly known as Mi Remote or TV Assistant), which allows you not only to broadcast content, but also to use the phone as a full-fledged remote with support for voice input and keyboard.
After installing the app and pairing with the TV (via scanning) QR-You can go to Tools or Broadcast, and it's more functional than the standard menu, you can send files directly to the TV memory, you can start the installation. APK-file.
The app is especially useful if the TV's built-in keyboard is slow or uncomfortable to enter passwords from Wi-Fi and accounts.The Xiaomi TV Assistant creates a stable connection that is less prone to breaks than the standard Miracast.
Without these permissions, the app will not be able to “see” files to be transferred or control the TV system.
Solutions to Connection Problems and Errors
Despite the ease of setting up, users often face a situation where the TV does not appear in the list of available devices. The most common reason is the use of a guest Wi-Fi network. If the phone is connected to the guest SSID and the TV to the main one, they will be isolated from each other by the router's security settings.
Another common problem is an outdated Wi-Fi driver or conflict. IP-Try rebooting the router by completely disconnecting it from power. 10-15 It'll clear the cache. DHCP And it will give new addresses to devices, which often solves the problem of invisibility.
⚠️ Warning: Antivirus programs or firewalls on your phone can block ports needed to detect the TV.If the connection fails, temporarily disable third-party security apps.
If there is an image but no sound, check the audio output settings in the app from which the broadcast is coming. Sometimes the sound stays on the phone and the picture goes to TV. In such cases, switching the output mode in Bluetooth and device settings (if the TV is connected as a Bluetooth audio device) or in the settings of the player application itself helps.
If you have a permanent connection break or a "square" on the screen, try to lower the broadcast quality in the Mi Cast settings or bring the phone closer to the router. Interference from microwave ovens and neighboring Wi-Fi networks can also affect the stability of the flow.