Xiaomiβs modern ecosystems make it easy to turn a smartphone into a powerful remote control or a source of multimedia content for a large screen. Many tech owners face the need to show photos to relatives, run videos from the browser to the full screen or even bring gameplay. Fortunately, the MIUI shell and the Android TV operating system already have all the necessary tools built into this task without buying additional adapters.
The process of image transfer, or screencasting, can be done in a number of ways, each with its own characteristics: you can use standard Miracast protocols, Google Cast technology, or proprietary solutions from the manufacturer, and understanding the differences between these methods will allow you to choose the best option for a particular situation, whether it is watching a movie in 4K or presenting working documents.
In this article, we will take a look at all the available connectivity methods, from standard system settings to using third-party software for specific tasks, and we will also look at common problems, such as sound desynchronization or no image, and suggest effective ways to fix them.
Preparing devices for wireless connection
Before you start setting up a broadcast, you need to ensure the right network configuration. A fundamental requirement for most wireless protocols to work is to have both devices on the same LAN, which means that your Xiaomi smartphone and your Mi TV must be connected to the same router.
A common mistake users make is to ignore Wi-Fi frequency bands. If your router is broadcasting two networks (2.4 GHz and 5 GHz), make sure that both gadgets are connected to one of them. Although modern routers are able to combine bands, in some cases, the separation of networks can prevent devices from being detected by each other via the DLNA or Miracast protocol.
Itβs also worth checking the softwareβs relevance. On your TV, go to Settings β About Device β System Update and make sure the latest firmware version is installed. On a smartphone, a similar path is usually found in the Settings menu β About Phone β MIUI version. Updates often contain patches for wireless communication modules, which directly affects connection stability.
It is important to note that the TV must have the appropriate service active for the Translation function to work correctly, and in most Xiaomi TV models it is enabled by default, but in some cases it needs to be manually run through the application menu.
Use of the built-in "Transmission" function
The fastest and most native way to display an image is to use a system function called "Transmission" or "Translation" in the MIUI shell, which is based on the Miracast protocol and does not require any additional software installation.
To activate, open the notification curtain on your smartphone with a swipe from top to bottom. Find the Transfer icon (may be called "Cast" or "Translation"). If the icon is not available quickly, click on a pencil or three dots to edit the panel and drag the desired item to a prominent place.
βοΈ Checking before connection
You click on the button and you start looking for available devices. When your Xiaomi TV name appears on the list, tap it. You may see a request for permission to connect on your TV screen, which you need to confirm with the remote.
You should keep in mind that when you use Miracast, the image is transmitted in real time, which creates minimal latency. However, the quality of the image may depend on the power of the Wi-Fi signal. If you notice artifacts or jerks, try to approach the router closer.
β οΈ Note: Transfer via Miracast may not work with protected content from some streaming services (e.g. Netflix or Disney).+) because of copyright protection policy HDCP. In such cases, the image will be black and the sound can be played.
Google Chromecast technology built-in
Most modern Xiaomi TVs run on Android TV, which has built-in support for Google Cast technology. This is a more advanced method compared to simple screen duplication, as it allows you to transfer content directly from the server to the TV, saving battery power of the smartphone.
To use this feature, you donβt need to search for the device in your phoneβs settings: just open an app on your smartphone (like YouTube, Google Photos or Chrome browser), find the broadcast icon (a rectangle with waves in the corner), and select your TV from a list.
What is the difference between Miracast and Chromecast?
The thing about Chromecast is that once you run a video on your TV, you can turn the app down or even turn off your phone screen, and playback will continue.
To stream the Google Chrome tab, click three dots in the corner of the app and select "Translate." You can choose to stream the tab or the entire desktop. In the second case, the phone will behave the same way as when using Miracast.
Broadcasting through third-party applications
If standard methods donβt work or advanced features are required (e.g., audio transfer from applications that block audio recording), third-party solutions come to the rescue, with Web Video Caster, LocalCast and Cast to TV apps leading the way.
These programs often have their own codecs, which allows you to play video files in complex formats that the TV does not understand out of the box, for example, they can easily broadcast files with subtitles or sound tracks in DTS format.
The process of using it is usually simple: install the app on both your phone and your TV (if you need a server part), connect to the same network, and select a file or link to playback. Some applications allow you to control playback using voice commands.
π‘
If standard broadcasting is slowing down, try lowering bitrate or stream resolution in the caster app settings, which will improve picture stability with a weak Wi-Fi signal.
Special attention should be paid to the possibility of broadcasting through USB-Adapters if your TV does not support Smart features but has input HDMI. In this case, the phone will work as a signal source, and the adapter (for example, Anycast) will receive the signal and transmit it to the matrix.
Wired connection via USB-C to HDMI
For tasks that are critical to maximum latency (e.g. mobile gaming) or image quality, there is no substitute for a wired connection. To implement this method, you will need a special USB-C to HDMI adapter.
Itβs important to understand that not all Xiaomi smartphones support video output via a charging port.This feature (MHL or DisplayPort Alt Mode) is usually only available in flagship models. Budget devices can be charged from an adapter, but the picture will not be transmitted.
| Smartphone model | Video output support | Maximum authorization | Type of connector |
|---|---|---|---|
| Xiaomi 13 / 14 Pro | Yes (DP Alt Mode) | 4K @ 60Hz | USB Type-C 3.2 |
| Xiaomi 11T Pro | Yes. | 4K @ 60Hz | USB Type-C 3.1 |
| Redmi Note 12 | No (USB 2.0 only) | - | USB Type-C 2.0 |
| Poco X5 Pro | No. | - | USB Type-C 2.0 |
If your phone supports video output, just plug the adapter into the charging port and insert the HDMI cable into the TV. The system automatically detects the external device and switches to the output mode. In some cases, you will need to manually select the signal source on the TV remote by pressing the Input button or Source.
The advantage of this method is that it does not depend on the speed of Wi-Fi and no compression of the image. The image is transmitted in the original digital quality, which is especially noticeable on large diagonals.
Solving problems and eliminating mistakes
Despite the ease of setting up, users often face technical difficulties, and the most common problem is that the TV can't see the phone, so the first thing you do is check if the router is activated with AP Isolation, a security feature that prevents devices on the network from communicating with each other.
Another reason could be an outdated cache of a Google Play service or a Google Cast component.Try clearing these services data from the Settings menu β Annexes β All apps. Rebooting both devices also helps: Turn off the TV for 30 seconds to reset static charges and system cache.
β οΈ Attention: When in use VPN On a smartphone, local broadcasting may stop working. VPN It redirects traffic through a remote server, which puts the phone and the TV on different virtual networks. VPN pre-connect.
If there is an image but no audio, check the audio output settings in the app from which the broadcast is coming. Often the default sound goes through the phone speaker. Also make sure that the TV does not turn off the sound or select an external audio output that is not connected to anything.
π‘
The stability of wireless broadcasting depends on the quality of the router. For 4K content broadcasting, it is strongly recommended to use dual-band routers that support Wi-Fi 5 (AC) or Wi-Fi 6 (AX).