Modern technology allows you to turn any Smart TV into a powerful multimedia center, streaming content directly from the screen of your smartphone. For owners of the Xiaomi ecosystem, this process is especially simple thanks to the deep integration of the software shells MIUI and HyperOS. You no longer need to search for HDMI cables or use complex adapters to show photos to friends or run a movie from the Internet on the big screen.
There are several proven ways to connect, each with its own advantages depending on your TV model and operating system version, and the main video protocol in this case is Miracast technology built into Android, or Google-branded solutions, all that matters is making sure that both devices are on the same local network, which is a key condition for stable operation.
In this article, we will cover all the current synchronization methods, from standard system tools to specialized applications, learn how to configure sound and image transmission with minimal latency, and understand what to do if devices can not see each other. Proper network configuration and knowledge of the nuances of DLNA will help avoid common problems.
Preparation of equipment and network for synchronization
Before you start setting up the broadcast, you need to make sure that your home network is ready to transmit heavy video stream. WiFi wireless connection should be stable, because compressed video requires high channel bandwidth. If the router supports dual-band mode, prefer to use a frequency of 5 GHz, which provides less latency compared to the congested range of 2.4 GHz.
Both Xiaomi smartphones and TVs must be connected to the same hotspot. Often, users are faced with the phone running over the mobile Internet or connecting to the router's guest network, making them "invisible" to each other. Check the router's settings and make sure that the AP Isolation feature is turned off, otherwise the devices will not be able to communicate.
⚠️ Note: If your router distributes two networks with the same name (Smart Connect), try temporarily dividing them into two networks. WiFi_Name_2.4 and WiFi_Name_5 Connect both devices to the network 5 GHz for better performance.
It’s also worth checking the software’s relevance on both devices. Android TV or Google TV updates often include security protocol patches that can block older versions of Miracast. On Xiaomi, make sure the system is updated to the latest available version, as wireless projection bugs are often patched in MIUI security patches.
Broadcasting the screen through the built-in “Translation” function
The fastest way to display an image is to use a native system feature called Translation or Caste in MIUI and HyperOS shells, which does not require third-party applications to be installed and works at the operating system level using Wi-Fi Direct protocol.
If you don't see the icon right away, it may be hidden in the editable menu. Click on the three-dot icon or pencil in the corner of the notification curtain, find the "Translation" element and drag it to the active zone. Once clicked, the system will automatically search for available devices on the local network. On the TV screen, a request for confirmation of the connection may appear, which must be received by the remote.
☑️ Check before broadcasting launch
The quality of the image depends on the signal strength. If you notice artifacts or sound desynchronization, try to get closer to the router. In the phone settings, you can find additional developer parameters where you can sometimes change the resolution of streaming, but for most users, the standard 1080p settings are optimal.
Why can the broadcast be interrupted?
Using the Google Home app to manage
For TVs running Android TV or with built-in Chromecast, the most reliable way is the official Google Home app, which allows you to not just duplicate the screen, but manage multimedia content, turning the phone into a remote control, which is especially convenient if you want to run videos from YouTube or Netflix, since the signal goes directly from the server to the TV, bypassing the smartphone processor.
After installing the app and logging in to your Google account, click the Add Device button and follow the instructions on the screen. The system will find your TV and suggest setting it up. In the app interface, select your device and click the "Cast my screen" button, which will trigger the process of mirroring the entire Xiaomi interface onto a large display.
- 📺 Convenience: The ability to control video playback, pause and change volume directly from the phone lock screen.
- 🎮 Games: Low input latency support allows you to use your smartphone as a controller for simple games on your TV.
- 🔊 Audio: The ability to broadcast only sound to external speakers or saunbars that support Google Cast protocol.
Importantly, when using Google Home, the phone should remain active.If the smartphone screen goes out due to a timeout, the broadcast may stop.In the display settings, Xiaomi recommends temporarily increasing the time before going to sleep or turning on the “Do not turn off the screen” option during charging.
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Use the phone’s horizontal orientation for games and movies to make the image fill the entire TV screen without the black bars on the sides.
Video and photo streaming via DLNA
If your goal is to show photos saved on your phone or run a downloaded movie rather than duplicate the entire screen, you might want to use DLNA technology, which allows you to transfer media files directly to a TV that decodes them on its own, which reduces the battery load on your smartphone and often provides better picture quality, because there is no double compression of the video stream.
Most modern TVs from Samsung, LG and Sony support this feature out of the box. On Xiaomi smartphones, it is most convenient to use the built-in Mi Video player or gallery to work with DLNA. Open the file you want, click on the Translation icon (a rectangle with waves), and select your TV from the list.
| Characteristics | Miracast (Translation) | DLNA (Media) | Chromecast |
|---|---|---|---|
| Type of transmission | Full screen mirroring | Media files only | Streaming from the cloud |
| Phone load | High (screen and GPU working) | Low (file transmitted by stream) | Minimum (commands only) |
| Dependence on the phone | High (the screen cannot be turned off) | Medium (can be blocked screen) | Low (phone to remote) |
| Quality. | Depends on the WiFi signal. | Original File Quality | Adaptive (on network speed) |
The advantage of DLNA is that you can continue to use your phone, either by responding to messages or by flipping through your social media feed while you're watching a movie on your TV, and interrupting apps on your smartphone won't stop you from playing if the file is already buffered or is being transmitted stably.
Third-party applications for complex cases
In situations where the built-in tools fail or the TV is an older generation without support for Smart-functions, third-party applications come to the rescue. The leader in this niche is Web Video Caster, which can pull out a video stream from the browser and send it to the TV, even if the browser itself does not know how to work with Chromecast.
Another powerful tool is the Xiaomi Mi Remote app (or simply “Mi Remote”), which is often pre-installed on the brand’s devices, allowing you to control your TV via an IR port (if you have one on your phone) or via WiFi if the TV supports control protocols. For advanced users, there is BubbleUPnP, which provides access to complex rendering and codec settings.
⚠️ Note: When installing third-party applications from unknown sources (APK-files) always check their digital signature. Some broadcasters may contain intrusive advertising or miners loading the processor.
For Samsung and LG TV owners, there are official plugins for these apps that significantly improve compatibility, such as the Web Video Caster plugin, which allows you to stream videos with subtitles that a standard TV player might not recognize, making third-party software an indispensable tool for moviegoers.
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Third-party apps are a “plan B” that solves 99% of compatibility issues when standard Android and iOS protocols can’t agree with the TV.
Removing common connection problems
Despite the simplicity of the technology, users often find that the TV does not appear in the list of available devices. First of all, check whether the antivirus or firewall on the router blocks local device detection. In some cases, a simple router reboot helps, which clears the cache DNS refresh IP-address.
If there is an image but no audio, check the audio output settings in a particular application. Sometimes the audio stays on the phone even if the image is broadcast. In such cases, you need to click on the speaker icon in the notification curtain or in the broadcast interface and switch the output to HDMI/TV.
- 🔄 Reboot: Turn off and turn on both devices, this solves the problem in 80% of cases.
- 📡 Frequency: Switch the router to only 5GHz or 2.4GHz mode, eliminating automatic switching.
- 🛡️ Security: Turn it off VPN on the phone, as it changes the virtual location and hides the device from the local network.
Also, you should pay attention to the date and time. If the phone and TV have very different system time, security protocols can block the connection, deeming the certificates invalid.