Many users of Xiaomi, Redmi and POCO smartphones are faced with a mysterious feature called “Translation” on the device’s menu, which allows you to instantly display an image from the screen of a mobile gadget to a large display of a TV or monitor without using wires. Wireless projection provides access to viewing photos, videos, games and presentations on a wide screen, turning the smartphone into a full-fledged multimedia center.
At the heart of the technology is the Miracast standard, which is built into the shell of MIUI and HyperOS, making the connection process as simple as possible. You do not need to buy additional consoles or complex adapters if your TV supports the Smart TV function.
However, despite its apparent simplicity, users often experience device visibility problems or image delays when playing dynamic content. Understanding how data protocols work will help avoid common errors. In this article, we will discuss in detail all aspects of the configuration, available modes and ways to fix possible problems when connecting.
What is the translation function in MIUI and HyperOS
Xiaomi’s Translation feature is a software module that implements Wi-Fi Direct technology. Unlike conventional connections to a single network, devices share video stream directly or through a router with minimal latency. The system encodes the image from the screen in real time and sends it to the receiving device, which decorates the signal and displays the picture.
It is important to distinguish between Miracast and DLNA, which are often confused. Screencasting (casting) copies everything that happens on the phone's display, including notifications and desktop. DLNA allows you to send only specific media files (photos, videos, music) through compatible applications without displaying the system interface. Xiaomi's built-in feature is focused on full screen cloning.
⚠️ Note: Use of high-resolution broadcasting (1080p or 4K) Significantly increases battery consumption and can cause smartphone heat.It is recommended to keep the device connected to charging for long sessions.
MIUI and HyperOS shells provide advanced settings for this module. You can adjust the quality of the transmitted image, turn on or off the sound, and control the visibility of the device to other users on the network. This is especially true in office spaces or public places where it is important to hide the contents of the screen from prying eyes.
Technical requirements and compatibility of devices
The feature requires a number of specifications to work successfully: First of all, the receiving device (TV, projector or media set-top box) must support the Miracast standard. Most modern Smart TVs from Samsung, LG, Sony and Philips have this feature out of the box, often called Screen Share, Anyview Cast or simply Translation.
If your TV isn't smart, an external adapter will save the day. It could be Android. TV Box, Chromecast or specialty HDMI-Wi-Fi-enabled whistles, the main requirement is that you have wireless display protocol, and older models of TVs without smart features will require you to buy a separate set-top box.
Connection stability is directly dependent on wireless network quality. High-resolution video transmission is recommended using the 5GHz band, which provides more bandwidth and is less susceptible to interference from neighboring networks. If the router only operates at 2.4GHz, micro-latency or image artifacts are possible.
- 📺 The TV must support Miracast or have an external console with Android TV.
- 📶 Both devices must be in the zone of confident reception of the Wi-Fi signal.
- 📱 Xiaomi smartphone should be updated to the current version MIUI/HyperOS.
- 🔋 It is desirable to have an energy saving mode in the router for flow stability.
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If the TV is not visible in the list, try temporarily disabling the “Customer Isolation” function on the router. AP» (AP Isolation, which prevents devices from seeing each other on the network.
Step-by-step instructions: how to turn on the broadcast
The activation process on Xiaomi smartphones is as simple as possible and takes no more than a minute. First, you need to prepare the receiving device: on the TV remote, find the signal source button (Source or Input) and select Screen Share, Miracast or Wireless Monitor mode. On some Samsung models, you need to launch the Smart View application.
After the TV is ready, we go to the smartphone. Open the control menu (curtain) and find the Translation icon. If it's not on the home page, click on a pencil or three menu editing dots and add this shortcut. Alternative way through settings: go to Settings → Connection and Sharing → Broadcast.
Once you turn on the search, the phone will start scanning the available devices. When your TV name appears on the list, click on it. On the TV screen, you may see a request for confirmation of connection — use the remote to agree. In a few seconds, the image from the phone will appear on the big screen.
☑️ Checklist of connection
When you connect, the system can request permission to access the local network, which is standard Android security procedure needed to detect devices on the local network, and after successfully pairing, an icon that resembles a wave screen will appear at the top of the smartphone screen, signaling an active broadcast.
Using the Mi TV app to expand opportunities
While the built-in Translation feature is effective, Xiaomi has developed a standalone MI Remote (Mi TV) application that is often pre-installed or available in the GetApps store, which allows not only duplicate screens, but also remote control and file transfer.
The app is especially useful for Android TVs, which can run through the Chromecast built-in protocol, which allows for more stable video transfer from apps like YouTube or Netflix than simply duplicating the screen, in which case the phone acts only as a remote control, and the video is downloaded by the TV directly from the Internet.
To use advanced features, run the app and click the Translation button in the top corner. Select your TV from the list. If the devices aren't, make sure they're connected to the same Wi-Fi network. The app also lets you stream high-quality photos and videos from the gallery without loading on the phone's processor.
| Method | Protocol | Delay. | Quality. |
|---|---|---|---|
| Built-in "Translation" | Miracast | Low. | High (depends on Wi-Fi) |
| Google Home / Chromecast | Google Cast | Minimum | Up to 4K HDR |
| DLNA (via player) | DLNA | No (buffering) | Original file |
Why does the sound disappear during broadcast?
Configuring the quality and parameters of the connection
The broadcast settings menu, which opens by tapping three dots or a gear in the corner of the search screen, has important settings hidden. Here you can turn on "Only during charging" to prevent the function from accidentally starting and draining the battery at the wrong time.
For advanced users, the interesting thing is to set up resolution and frame rate, and if the TV is old or the network is overloaded, you can force the resolution down to 720p, which will greatly improve the smoothness of the picture and reduce the load on the Wi-Fi channel, and this is relevant for presentations or static images.
⚠️ Warning: Changing your codec settings or resolution may require rebooting the Wi-Fi module. If the broadcast stops working after the changes, reset your smartphone’s network settings completely.
Some Xiaomi models allow you to use the “Second Space” or “Guest Mode” feature during the broadcast.This means you can switch to another desktop with personal data and it will not appear on the TV. Activate this option in the privacy settings if you plan to show the screen publicly.
The solution: problems and their elimination
The most common problem is that the TV doesn't show up on the list of available devices. 90% of the time, the reason is that the devices are connected to different networks (e.g., one to the guest, another to the main, or one to 2.4 GHz, another to 5 GHz, although the router isolates them). Check the exact names of the Wi-Fi networks in the settings.
Another common issue is audio and image desynchronization or twitching, which indicates a lack of channel bandwidth. Try to get closer to the router, disable downloads on other devices or restart the router, and also helps to disable the VPN on your smartphone, which can redirect traffic through remote servers.
If there is an image but no sound, check your media settings in Android. Sometimes the system defaults to select the output of the sound to the phone. Click the speaker icon in the control panel or in the notification curtain during the broadcast and switch the output to TV Audio.
- 🔄 Restart the router and both devices (TV and phone).
- 🛡️ Turn off antivirus or firewall on your smartphone while you connect.
- 📶 Make sure that the router does not turn on the “Guest Network” mode for one of the devices.
- 📲 Update the Translation app or «MI Remote through the GetApps store.
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The stability of the broadcast is 80% dependent on the quality of the Wi-Fi signal and the absence of physical obstacles between the router and the devices.
Alternative ways to display the image
If the standard function doesn’t work or the quality doesn’t work, there are alternatives. The most reliable way is to wired through a USB-C to HDMI adapter. This ensures that the signal is transmitted without delay and compression, which is critical for gaming. However, not all Xiaomi smartphones support video output via USB (you need a USB 3.0/3.1 port or DisplayPort Alt Mode support).
For owners of the Google ecosystem, the Google Home app is a great solution, which allows you to stream a Chrome browser tab or a desktop phone to Chromecast devices, a method that is often more stable than the built-in Miracast, especially when working with video services.
The third option is to use third-party repetitive apps like LetsView or ApowerMirror, which are installed on both your phone and your TV (or PC) to create your own data channel, which is a good solution for older TVs that have a computer or laptop connected to them.