Modern technologies make it possible to turn any smartphone into a powerful multimedia center, and devices from the company Xiaomi This is no exception. The ability to broadcast images from a mobile device's screen to a large TV display opens up access to high-quality viewing of movies, photo archives, and even mobile games. This process, known as screencasting Screen mirroring, or screen mirroring, has become a standard for smart homes, but often raises questions among users during initial setup.
There are several ways to establish a connection between devices, and the optimal method depends on the functionality of your TV and the version of the operating system. MIUISome users prefer to use built-in system functions, while others rely on third-party apps or wired adapters. In any case, a wireless connection via a local network Wi-Fi remains the most convenient and popular option, requiring no extra cables.
In this article, we'll take a detailed look at all available synchronization methods, from standard protocols to specialized utilities. You'll learn how to avoid signal lag, improve picture quality, and what to do if devices can't see each other on the network. Properly configured router and TV settings are essential for a stable multimedia system.
Preparing equipment and setting up the network
Before starting the procedure, you must ensure that both devices are in the same network environment. A fundamental requirement for a successful connection is that the smartphone and TV are connected to the same Wi-Fi networkIf your router supports dual-band operation, make sure both devices are operating on the same frequency, preferably 5 GHz, to ensure smooth, buffer-free high-definition video streaming.
It's also important to ensure that the TV's external signal reception mode is activated. Modern Smart TVs typically have this feature enabled by default, but some models require manual activation. Screen Share or Miracast in the signal sources menu. On smartphones Xiaomi The system component responsible for transmitting the image must have permission to run in the background.
⚠️ Note: If your router is configured with AP Isolation, smartphones will not be able to detect the TV. This security feature is often enabled on guest networks and blocks local communication.
Check that the firmware on both devices is up to date. Outdated firmware may contain bugs that prevent proper protocol handshake. DLNA or ChromecastSystem updates often resolve compatibility issues with new video coding standards.
Using the built-in "Cast" feature in MIUI
shell MIUI, installed on smartphones Xiaomi, Redmi, and POCO have a built-in tool for wireless screen mirroring. This feature is based on the standard Miracast, which is supported by most modern TVs. No additional software installation is required to start the process, making this method the fastest and most convenient for the average user.
To enable casting, open the notification shade and look for the "Cast" icon (sometimes called "Projection" or "Cast"). If the icon isn't available in the quick access menu, go to Settings, select "Connection and Sharing," and find the appropriate section. Once enabled, your phone will begin searching for available devices on your local network.
☑️ Pre-broadcast check
When your TV's name appears in the list, tap it to pair. You may see a connection confirmation prompt on the TV screen, which you'll need to accept with your remote. From this point on, your smartphone's image will be mirrored on the big screen in real time. Transmission quality depends on signal strength. Wi-Fi and channel congestion.
⚠️ Note: If your phone is actively used during the broadcast (for example, due to an incoming call or messenger notification), the content may be interrupted or appear over the video. It is recommended to enable "Do Not Disturb" mode.
Using Chromecast technology and the Google Home app
If your TV does not support Miracast natively, but has a built-in module Chromecast or works on the basis Android TV, the best solution would be the Google ecosystem. Smartphones Xiaomi have built-in Google services, which allows you to use the casting protocol to transmit media content from applications or the entire screen.
To manage the process, it is recommended to install the official application. Google HomeIt allows you to find and control devices on your network. Open the app, find your TV in the list of devices, and click the "Cast Screen" button. This method often provides a more stable connection and lower latency than standard Miracast.
Additionally, many popular video services, such as YouTube or Netflix, have a built-in cast button. Clicking the icon Cast In the video app, the smartphone acts only as a remote control, and the TV downloads the video stream directly from the internet. This significantly reduces the load on the phone's battery and processor.
Third-party screen mirroring apps
In cases where standard methods don't work or require advanced functionality, third-party solutions come to the rescue. App stores offer a variety of utilities, such as TV Cast, Web Video Caster or LocalCastThese programs can often stream locally stored video files that are not supported by the TV's built-in player.
These apps work by creating their own media server on a smartphone or directly forwarding the stream to the TV's IP address. The user selects a file in the app, which encodes the stream into a format the TV can understand and sends it over the network. This is especially relevant for older Smart TV models that cannot read modern codecs.
Some apps not only allow you to stream videos, but also display presentations or documents. This is done by your smartphone. Xiaomi A universal tool for office work. However, it's worth keeping in mind that free versions of programs often contain ads that may appear on your TV screen.
Compatibility issues and bug fixes
Despite standardized technologies, users often encounter situations where the phone can't see the TV or the connection constantly drops. One common cause is different security protocols. Wi-FiIf your router is distributing the network in mixed mode, try forcing the WPA2-PSK (AES) standard, as older TVs may not work correctly with WPA3.
The problem could also lie in the router's firewall settings or the antivirus software, if installed on the TV. Blocking ports used for discovery protocols (device searches) makes devices invisible to each other. Temporarily disabling the firewall can help diagnose this issue.
What to do if the video is lagging?
If the image is choppy or has low resolution, try lowering the output quality in the streaming settings. Also, check to see if your Wi-Fi channel is congested with neighboring networks. Switching to channel 1, 6, or 11 in your router settings often resolves the interference issue.
Another important aspect is power consumption. Aggressive battery saving settings in MIUI may be killing the background streaming process. Go to battery settings, find the app you're streaming through, and set it to "No Restrictions."
Comparison of connection methods and their characteristics
To choose the optimal connection method for your needs, it's worth comparing the key features of available technologies. Each has its own advantages and disadvantages depending on the usage scenario: watching movies, presenting presentations, or mobile gaming.
| Method | Latency | Image quality | Difficulty of setup |
|---|---|---|---|
| Miracast (Broadcast) | Low | High (up to 1080p/4K) | Low |
| Chromecast | Average | Very high (adaptive) | Average |
| DLNA (Media server) | Absent | Original (uncompressed) | High |
| HDMI adapter | Minimum | Ideal | Low |
As you can see from the table, low-latency methods like Miracast or a wired connection are best for gaming. For watching movies from online cinemas, Chromecast, as it either handles the decoding work itself or streams directly. DLNA is good for viewing large files from your phone's internal storage without loss of quality.
Alternative options: USB and HDMI adapters
If the wireless connection is unstable or the image quality isn't up to par, there's always the option of a physical connection. For smartphones Xiaomi with port Type-C, supporting the standard DisplayPort Alt ModeThere are special HDMI adapters available. They allow you to output images digitally without compression or delays.
You can also use a USB cable to connect to your TV if the TV supports MHL or SlimPort. In this case, the phone is detected as an external storage or media device. However, this method only allows you to browse files through the TV's file manager; real-time screen mirroring via USB is usually unavailable without special drivers.
Using adapters requires a separate power supply, as the TV port may not supply sufficient current. Connect the adapter to a power outlet via USB and insert the HDMI cable into an available port on the TV. Switch the signal source on the TV to the appropriate port. HDMI.
⚠️ Please note: Not all Xiaomi models support video output via USB-C. Check your model's specifications for video output support before purchasing an adapter.
Frequently Asked Questions (FAQ)
Why doesn't my Xiaomi phone see my TV in the list of devices?
The most likely cause is that the devices are connected to different networks (for example, one to a guest network and the other to the main network) or client isolation is enabled on the router. Also, check if the TV's software is updating in the background, which could temporarily hide it from the network.
Is it possible to connect a phone to a TV without Wi-Fi?
Yes, with the help of technology Wi-Fi Direct, which creates a direct connection between devices without a router or using physical HDMI adapters. However, most smart features still require an internet gateway.
Does screencasting affect internet speed?
Yes, when using methods that download content via a phone (screencasting), internet speeds on other devices may decrease. Using Chromecast for online video distributes the load differently, and the phone uses almost no data once playback begins.
How to improve the quality of a picture if it is blurry?
Make sure your phone and TV screen resolutions are correctly sized (e.g., 16:9). Try switching your Wi-Fi frequency to 5 GHz, as the 2.4 GHz band is often congested and doesn't provide sufficient bandwidth for HD video.