Modern technology allows you to turn your smartphone into a powerful multimedia center, displaying the image on the big screen without the use of unnecessary wires. Owners of Xiaomi and LG equipment often face the need to show photos, run a video or presentation on the TV, and wireless connection is the most convenient solution. The setup process takes only a few minutes, if you know the right sequence of actions and understand what functions are responsible for.
There are several main ways to do this, each with its own advantages depending on the hardware model: You can use embedded data protocols like Miracast or AirPlay, or use third-party applications for more advanced management. It is important to understand that both devices must be on the same local network to ensure stable transmission of high-resolution video stream.
In this article, we will take a look at all the synchronization methods available, from standard MIUI tools to specialized software. We will look at the typical problems that users face when trying to connect, and propose effective ways to fix them.
Preparing devices for wireless connection
Before you start setting up, make sure your hardware is ready to work on a single network. The basic requirement is to have a Xiaomi smartphone and an LG TV in the same router range. If you have a dual-band router, it is recommended to connect both devices to a 5 GHz network for faster data transfer speeds and lower latency.
Check that the TV has Smart TV enabled and external devices are on standby. On current LG models with webOS, this usually happens automatically, but older versions may require manually running the app to receive the signal. Make sure that the software of both devices is updated to the latest available version, as this fixes many known compatibility bugs.
- 📶 Check that the Wi-Fi module on your phone is activated and lit in blue.
- 📺 Make sure the TV is connected to the same network as the smartphone (the name of the network must be the same).
- 🔄 Restart the router if there are problems with connection stability.
⚠️ Note: If your router supports Guest Network, do not connect your broadcasting devices to it. Isolation of customers on guest networks often blocks the ability of your smartphone to detect your TV.
Special attention should be paid to the power saving settings on the smartphone. Aggressive MIUI algorithms can turn off the Wi-Fi module or limit the background activity of applications required for broadcasting. It is recommended to temporarily turn off energy saving mode or add transcription applications to the exclusion list to ensure a continuous flow of data.
Use of the built-in Translation function in MIUI
The easiest and fastest way to display an image is to use a regular Android feature called Translation in the MIUI shell, which is based on Miracast technology and does not require additional software installation, and is ideal for duplicating the screen in real time, for example, to demonstrate the interface of applications or web pages.
To activate this feature, lower the notification curtain down and find the Translation icon (may be called Cast or Wireless Monitor). If the icon is not in quick access, go to settings, select Connected Devices and find the appropriate section there. The system will automatically start searching for available devices within the network range.
When the LG TV appears on the list of available devices, just click on it. The TV screen may have a request for confirmation of connection, which must be received using the remote control. Once successfully paired, the image from the phone is fully copied to the large screen, and you can manage the content while watching the TV.
- 📱 Open the control panel. MIUI swipe.
- 🔍 Click on the "Translation" icon to search for devices.
- ✅ Choose your TV. LG list.
It's worth noting that picture quality and sound availability depend on the power of your Wi-Fi router. With Miracast, the network load increases because the video stream is transmitted in real time without strong compression. If you notice a desynchronization of sound and video, try bringing the phone closer to the router or reducing the quality of the content being played.
LG TV Plus app for advanced management
The official LG TV Plus app (or its new version of LG ThinQ) provides a deeper level of integration between a smartphone and a TV, a technique that not only allows you to stream media files, but also uses the phone as a remote control, which is especially convenient if the main remote is lost or dead.
Once installed, run the program and follow the instructions on the screen to search for the TV. The app will request permission to access the local network and geolocation, which is necessary for the correct operation of the device scanner. The TV screen will show a confirmation code that you need to enter in the smartphone to complete (match).
Path to the LG ThinQ menu: Home → Add device → Quick installation → Scan QR- codeThe main advantage of using official software is the ability to broadcast photos and videos from the phone gallery in native resolution of the TV, bypassing the mirror display of the desktop. This reduces the load on the smartphone processor and saves battery power, since the video stream is decoded by the TV, rather than transmitted as a video stream of the screen.
Why can't the app see the TV?
Inside the app, you'll find a user-friendly interface for selecting files, so you can create playlists, manage playlists, and even transfer files directly to the TV's hard drive if it supports recording to external media, making it ideal for watching family albums or video archives.
Broadcasting via Google Home and Chromecast
Many modern LG TVs feature built-in support for Chromecast built-in technology, which allows you to stream content directly from apps like YouTube, Netflix or Google Chrome using Google’s infrastructure, and is considered one of the most stable and energy-efficient.
To get started, make sure your Xiaomi has installed and updated the Google Home app. Open it and find your TV in the device list. If the TV doesn't show, click the "+" button to add a new device and follow the setting wizard's instructions. The process requires authorization in a Google account that must be linked to the TV.
| Parameter | The built-in broadcast (Miracast) | Google Home (Chromecast) | LG TV Plus |
|---|---|---|---|
| Image quality | Depends on the Wi-Fi signal. | High (up to 4K HDR) | Original File Quality |
| Battery consumption | High-pitched | Low. | Medium. |
| Management | Full screen mirror | Only the content of the application | Files and remotes |
| Sound. | Passed over late. | Synchronized | Synchronized |
To start a broadcast, open a supported app (like YouTube) on your phone, click on the broadcast icon (a rectangle with waves) and select your LG TV. The video will start playing on the TV, and the phone can be used for other tasks or even turn off the screen, and playback will not be interrupted.
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Use the Google Chrome browser on your phone to stream any tab or entire screen to your TV. Open the browser menu (three dots) → Broadcast → Select the source (tab or screen) and device.
It's important to understand the difference between mirroring and casting. With Chromecast, the phone acts as a remote that sends a link to a video, and the TV itself downloads the stream from the Internet, which dramatically reduces the load on the local network and eliminates the jerking of the image even with a weak Wi-Fi signal.
Third-party applications for specific tasks
In some cases, standard methods may not work or provide the desired functionality, for example, if you want to broadcast the screen to older models without Smart. TV (You need to use prefixes, or you need specific codecs, and there are third-party solutions for these situations, such as: TV Cast for LG, AllCast or BubbleUPnP.
These apps often have more flexible buffering settings and support file formats that the standard Android gallery ignores. For example, they can correctly display subtitles for video files or stream high-resolution audio formats that are not supported by the native TV player.
- 📂 Support for a wide range of video formats (MKV, AVI, FLV).
- 🎞️ Ability to manage subtitles and soundtracks.
- 📡 Work with DLNA servers and network storage (NAS).
When using third-party software, be prepared for advertising in free versions and possible heating of the device during long-term operation. Some applications require the installation of a server part on a PC or root rights for full access to the system, but the basic functionality is usually available immediately after installation.
⚠️ Note: Download broadcast apps only from trusted sources, such as Google Play. APK-Files may contain malicious code that steals your home network data or passwords from your accounts.
The Web Video Caster app, which allows you to stream videos from any site directly to your TV without the limitations of mobile sites, is a powerful tool for those who watch content through a browser rather than through official streaming apps.
Troubleshooting and troubleshooting
Even with the right setup, users can face problems: the TV is not visible in the list, the image twitches or there is no sound. IP-The first step should always be to reboot all the participants in the process: router, phone and TV.
If your Xiaomi phone doesn’t see an LG TV, check the firewall settings on your router. Sometimes the antivirus software on your router blocks ports used by DLNA and Miracast. Also make sure your TV doesn’t activate Quick Start+, which in some cases can block new connections to save energy.
☑️ Diagnostics of connection
If you have delays, try lowering the resolution of the output image in the broadcast settings, if this option is available, and disabling other devices that actively consume traffic (torrents, game downloads) helps to free up the channel for the video stream, the stability of the connection depends on the load of the air.
In rare cases, the problem may be in the phone's Wi-Fi drivers, if nothing helps, reset the network settings on the smartphone, which will remove stored Wi-Fi passwords and Bluetooth settings, but often resolves deep software conflicts of the communications protocol stack.
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90% of connection problems are solved by simply restarting the router and checking that both devices are on the same subnet (the same prefix). IP-addresses, for example 192.168.1.X).
Comparison of methods and selection of the optimal option
The way you connect depends on your specific tasks. If you want to show a presentation or interface of a game where interactivity is important, use the built-in "Miracast". Chromecast is the best way to watch movies and TV shows from online cinemas, as it provides the best quality and does not discharge the phone.
To manage media files stored in the phone’s memory and use the smartphone as a remote, the LG official app is ideal. It provides a balance between functionality and usability. Combining these methods to cover 100% of smart TV use cases.
Remember that technology is evolving and new firmware updates can add or change functionality. Check system updates on both devices regularly to access data protocols and security improvements.