Today, users rarely think about how complex multimedia systems were a decade ago. Today, transferring content from Xiaomi to the Samsung big screen seems trivial, but hidden technical nuances often baffle even experienced gadget owners. The AllShare protocol, developed by the South Korean corporation, was originally created as a proprietary ecosystem, but over time has transformed into a universal standard that most Android devices understand.
The main difficulty in integrating MIUI and Tizen (Samsung’s TV operating system) is not the lack of compatibility, but the variety of wireless implementation methods. The user may encounter a situation where the phone sees the TV but cannot play video, or the connection is terminated at the authorization stage. It is important to understand that DLNA and Miracast are different technologies, although they are often confused in everyday life.
In this article, we will take a closer look at all possible synchronization scenarios, eliminating broken methods and focusing on current solutions for 2026-2026, how to set up a local network correctly, which intermediary applications are really needed, and why standard Xiaomi tools sometimes work better than third-party software.
Principles of wireless data transmission
The foundation of any connection between a smartphone and a TV is the local Wi-Fi network. It is through the router that the main data stream passes using DLNA technology. Unlike Bluetooth, which has low bandwidth and is only suitable for audio or static images, Wi-Fi allows you to broadcast video streaming in 4K resolution without significant delays.
When you initiate a connection from a Xiaomi phone, the device sends a special search package (SSDP-Samsung TV, when in standby or active use, responds to this request by telling its capabilities — that is, what file formats it is able to decode (AP Isolation, devices can see each other.
There is also Wi-Fi Direct technology, which allows you to create a direct connection between the gadget and the TV without the help of a router, which is especially useful if the Internet channel is busy or the speed of the Wi-Fi network is low. However, it should be borne in mind that when using Wi-Fi Direct, the phone can temporarily lose access to the global Internet, as its Wi-Fi module switches to access point or direct client mode.
- 📡 DLNA — standard for transmitting media files over a local network, does not require screen mirroring.
- 📱 Miracast – technology of full cloning of the smartphone screen on the TV display in real time.
- 🔗 Wi-Fi Direct – Direct connection of devices without the need to connect to a router.
⚠️ Warning: Make sure your router’s settings have disabled the feature «AP Isolation, otherwise devices will not be able to detect each other on the same network.
Preparation of equipment and network
Before you start configuring the software, you need to provide a stable physical environment for data transfer. The quality of the connection depends on the frequency range on which your router operates. For high-resolution heavy video content, it is critical to use the 5 GHz band, as it is less busy and provides a higher data rate compared to 2.4 GHz.
Both Xiaomi smartphones and Samsung TVs must be connected to the same subnet, which means that if you have a dual-band router that broadcasts two different networks (e.g., a two-band router, Home_2.4 and Home_5G), Both devices must be connected to one of them, and being on different subnets can cause devices to simply not see each other when scanning.
It’s also worth checking the software’s relevance. On Samsung TVs, the firmware update often includes security patches and compatibility improvements with newer versions of Android. On Xiaomi’s phone, it’s important that Google Play Services system services are updated, as they contain the necessary components to run the broadcast protocols.
☑️ Checking before connection
Particular attention should be paid to energy saving: some Xiaomi models aggressively optimize background processes, which can cause connection breaks while watching a movie, it is recommended to add the broadcast app used to the battery exclusion list or use the "No Limits" mode for the corresponding system services.
Use of built-in features Xiaomi and Samsung
Modern MIUI shells and Tizen’s operating system have built-in collaboration tools that are often more efficient than third-party solutions. In Xiaomi phones, the feature is called “Cast” or “Wireless Monitor”, which is based on the Miracast protocol and allows you to completely duplicate the image from the smartphone screen to the TV.
To activate this feature on Xiaomi, you need to lower the notification curtain and find the icon "Translation" or "Cast." If the icon is not, you can add it through the shortcut editing menu. Once turned on, the phone will start searching for available displays. At this time, a request for connection permission may appear on the Samsung TV, which must be confirmed by the remote control.
An alternative is to use the Smart View feature on a Samsung TV, which is built into the system in the newer models and automatically activates detection mode, and the phone just starts searching for devices, and the TV appears in the list of available signal sources, which is ideal for showing presentations or games, since the latency is minimal.
⚠️ Note: When using Miracast, the image on the TV may have black stripes around the edges if aspect ratio_ The phone screen does not match the proportions of the TV matrix.
It's worth noting that some services, like Netflix or YouTube, use Google Cast technology, which works differently, in which case the phone acts as a remote control, and the video stream is downloaded by the TV directly from the Internet, which reduces the load on the smartphone processor and saves battery power.
Why is the broadcast laying down?
Configure with Samsung Smart View app
While the functionality of the built-in tools is great, the official Samsung Smart View app (or its modern counterparts integrated into SmartThings) provides deeper control over the media library.
Once the app is installed and logged in to your Samsung Account, it scans the network and finds compatible devices. The interface allows you not only to broadcast the screen, but also to create playlists from photos and videos stored in Xiaomi memory, which is especially convenient for viewing family archives on a large screen without having to copy files to a flash drive.
An important advantage of using specialized software is that it supports a wider range of file formats. The TV's built-in player may not know how to open a specific video container, while the intermediary application can recode the stream on the fly or use more versatile codecs to transmit.
- 🎞️ Support for video playback in resolution before 4K HDR.
- 🎵 Ability to broadcast music with phone screen lock.
- 📸 Convenient management of slideshow photos with interval setting.
When it first launches, the app will request multiple permissions to access files and the network. Without all the rights requested, proper operation is impossible, since Android strictly restricts the application’s access to the user’s media library for security purposes.
Alternative solutions: third-party applications
If standard methods do not give the desired result or functionality is not enough, third-party developers come to the rescue. One of the most popular and reliable solutions is the Web Video Caster application or BubbleUPnP. These programs specialize in finding videos on the Internet and sending them directly to DLNA-compatible devices.
The main feature of these applications is the ability to pull a video stream from a browser player. You can open a site with a movie in the Xiaomi browser, click the "Cast" button in the assistant app, and it will transmit a link to the video stream directly to the Samsung TV, at which point the phone can be turned off or used for other tasks.
Another powerful tool is XCast or TvCast, which often has more flexible codec and buffering settings. If embedded tools stumble on certain audio formats (such as DTS or AC3), a third-party player can solve the problem by software-based audio conversion to the stream.
| Annex | Type of connection | 4K support | Advertising |
|---|---|---|---|
| SmartThings | DLNA / Miracast | Yes. | No. |
| Web Video Caster | DLNA / Chromecast | Yes. | Got it (Free) |
| BubbleUPnP | DLNA / UPnP | Depends on TV. | No. |
| Xiaomi Mi Remote | IR / Wi-Fi | No (remote) | No. |
When using third-party software, it is important to pay attention to access rights, do not give an application access to contacts or a microphone if its functionality is declared exclusively as a media player.
Solving and eliminating errors
Even with a perfect setup, there can be situations where devices stop being friends. One of the most common problems is that the phone sees the TV, but when you try to connect, it says, "I couldn't connect." This is often treated by restarting the router, because it's in the spreadsheet. ARP-Addresses could have been conflicted.
Another common mistake is the lack of sound when successfully streaming a video, which indicates that the TV does not support the audio codec in which the file is encoded, in which case you either need to broadcast the entire screen (Miracast) or use a converter application that translates the sound into a compatible format (for example, AAC) on the fly.
If the connection is constantly broken, check whether the router is not limited in terms of number of connected customers or speed, and some antiviruses installed on Xiaomi can block incoming connections from the TV, considering them suspicious.
⚠️ Note: When you update your TV firmware, your network settings may reset. After you update, always recheck the network name and password of the Wi-Fi in the TV menu.
In rare cases, resetting network settings on the phone helps, which will remove stored Wi-Fi passwords and Bluetooth settings, but often solves problems with suspended network modules that interfere with the correct operation of the AllShare protocol.
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Use static. IP-The address for the TV in the router settings, which ensures that the device address does not change after the reboot, and the phone will always know where to send data.
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The stability of a wireless connection is 90% dependent on the quality of the Wi-Fi signal and the absence of interference in the air, not on the power of the phone transmitter.