Modern Xiaomi smartphones and LG TVs powered by WebOS are powerful multimedia bundles that can turn a living room into a real movie theater. Users often face the need to bring photos, YouTube videos, or even fully stream the Android interface for games. Fortunately, the ecosystems of these brands offer a variety of native and third-party solutions for organizing wireless or wired connections.
In this article, we will take a look at all the current methods of synchronizing devices, you will learn about the intricacies of the Miracast protocol, the features of DLNA technology and the advantages of wired connection via HDMI. We will look at both standard features of the MIUI shell and specialized applications that may be needed in complex cases.
Before we get to specific instructions, it is important to understand the basic principle of most wireless technologies: Successful signaling requires that both devices be on the same LAN, a fundamental requirement that none of the methods described below work without, except for direct cable connection.
Wireless connectivity via Wi-Fi Direct and Miracast
The most popular and convenient way to avoid buying additional hardware is to use wireless display technology. In Xiaomi smartphones, this feature is often called “Translation” or “Wireless Monitor”, and in LG TVs it is built into the Screen Share system. The Miracast protocol allows you to stream video stream in high resolution with minimal latency, which is ideal for showing presentations or watching movies.
To get started, you need to activate the reception mode on the TV. Depending on the year of the LG model, the interface may differ, but the essence remains the same. On the remote control, find a button with the image of a house or gear to enter the main settings menu.
The algorithm of actions is as follows:
- 📺 On the remote. LG Press the Input button or go to the app menu and select Screen Share).
- 📱 On a Xiaomi smartphone, lower the notification curtain and find the Translation icon (may be called Cast, a wireless monitor).
- 🔗 In the list of available devices, select your TV LG and wait for the connection.
It is important to note that picture quality is directly dependent on the power of your Wi-Fi router and the distance to it. If you plan to watch content in 4K, make sure that both devices support the 5GHz standard. Otherwise, you may twitch the image or desynchronize the sound.
⚠️ Note: When using the Translation feature, the screen of the smartphone will be completely duplicated on TV.This means that any notifications, calls or private messages will be visible to everyone in the room.
Sometimes your smartphone doesn't see the TV the first time, so try rebooting the Wi-Fi module on both devices, and make sure that the TV doesn't have guest mode on, which isolates the devices from each other.
Use the LG TV Plus app for advanced management
The official app from the TV manufacturer, available in the Google Play Store, gives access to more advanced control functions. LG TV Plus (or its newer version LG ThinQ) allows you not only to broadcast content, but also to use your smartphone as a remote control, control playback and even transfer photos and videos from the gallery to the big screen without duplicating the Android interface.
It takes a couple of minutes to install the app, but it has significant benefits. Unlike system broadcasting, you can control video playback independently: pause on your phone, and the video will stop on your TV, but you can fold the app and use other smartphone features.
The setup process looks like this:
- 📥 Download and install the application LG ThinQ from the official app store.
- 📡 Make sure your phone and TV are connected to the same Wi-Fi network.
- 🔑 Launch the application, click “Add device” and enter the code that appeared on the TV screen.
When you pair it, you'll see a Media or Gallery tab in the interface, and if you select a photo or video, you'll see a TV Translate button, which is ideal for a family archive, because the compression quality is often better than direct mirroring.
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If the app doesn't find the TV, check your router settings. Sometimes it helps to temporarily shut down the mobile Internet (3G/4G) on your smartphone to force traffic to be routed over Wi-Fi.
It’s worth mentioning that the functionality may vary depending on the year of the TV model. Older WebOS models may require installing a separate plugin or using an outdated version of the app, which can cause difficulties with modern versions of Android.
Wired connection via HDMI adapter
When the wireless network is unstable or requires maximum image quality without compression, cable connectivity comes to the rescue. Since modern Xiaomi smartphones do not have an HDMI port, you will need a special USB-C to HDMI adapter. This method guarantees zero latency, which is critical for mobile gamers.
Not all Xiaomi models support video output via USB. This feature, known as MHL or DisplayPort Alt Mode, usually have flagship devices of the Mi and Xiaomi Pro series. Budget models Redmi or POCO may not transmit a picture, limited to charging the device.
Instructions for connection:
- 🔌 Connect the adapter. USB-C smartphone-wise.
- 🎬 Put the cable in. HDMI Adapter and free port of the TV LG.
- 📺 On the TV remote, press the Input button and select the appropriate port (for example, HDMI 1).
If the connection is successful, the smartphone desktop will appear on the TV screen, in some cases, you may need permission to access data, which will appear on the phone screen, and the image will automatically adjust to the resolution of the TV matrix, whether it is Full HD or 4K.
| Parameter | Wireless (Miracast) | Wireless (HDMI) | DLNA (Media) |
|---|---|---|---|
| Image quality | Depends on Wi-Fi. | Maximum (Lossless) | High. |
| Delay (Input Lag) | Tall. | Minimum | Absent. |
| Battery charge | Expenditure fast. | Phone's charging. | Spent. |
| Convenience | High. | Requires an adapter | High. |
⚠️ Note: When connecting through HDMI The smartphone can start to heat up quickly, as there is active data transfer and simultaneous charging.
What if there is no sound through HDMI?
Broadcasting through aggregator applications (Google Home, YouTube)
The easiest way to show videos from the Internet is to use the built-in Translation feature in the services themselves. YouTube, Netflix, Twitch and many other streaming platforms have native support for Chromecast built-in (or WebOS analogues), which allows you to run the video on your phone and “flip” it to the TV, freeing the smartphone for other tasks.
It doesn't have to be standard MIUI tools to work. It's enough that an app (like YouTube for TV) is installed on an LG TV and both devices are on the same network. The algorithm is simple: open the video on your phone, click on the rectangle icon with Wi-Fi waves in the corner of the player, and select your TV.
The advantages of this approach are obvious:
The TV buffers the flow itself, so the quality is independent of the power of the smartphone, you can answer the phone, you can go on social media, you can even turn off the phone screen, and the video will continue to go on the big screen, and this is the most energy-efficient way to view content from online services.
If the standard button doesn’t work, you can use the Google Home app, which can translate the Chrome tab or the entire screen of your smartphone to any Chromecast or Google Cast-enabled TV that’s built into LG’s current models.
Configure DLNA to play back media library
DLNA (Digital Living Network Alliance) is a standard that allows multimedia content to be shared between devices within a home network. Unlike Miracast, it's not about screen duplication. You just tell the TV which file from the phone's memory to play.
In Xiaomi smartphones, a standard video player or file manager is often responsible for this, but for advanced features (such as support for subtitles, disk menus, codecs), it is better to install a third-party player, such as VLC for Android or MX Player. These applications have a built-in rendering module.
The procedure for using DLNA:
- Open the video file in the player on your smartphone.
- Click on the icon “Translation” or “Cast” in the player interface.
- Choose your TV. LG list DLNA-renderer.
The DLNA feature is that the TV plays the file itself, retrieving data over the network, which takes the load off the phone's processor, but if the router is weak, there may be buffering pauses, especially when playing heavy files with bitrates above 20 Mbps.
☑️ Checklist of successful connection
Solving and optimizing the connection
Even with the right setup, there can be technical failures, most often problems with MIUI energy saving settings that aggressively kill the background processes needed to maintain a stable connection. If the broadcast is interrupted after a few minutes, it is worth checking the battery settings.
You should also pay attention to the frequency of the Wi-Fi channel. If you have many neighbor networks in your home, the channels can intersect, causing interference. In the router settings, you should choose the least loaded channel or switch to the 5 GHz band, which is less prone to interference.
The main causes of problems and their solution:
- 📉 Low frame rate: Reduce the resolution of the broadcast image in the Xiaomi broadcast settings (usually available in the notification curtain when the active connection is available).
- 🔇 No sound: Check if the phone is silent and make sure that the Bluetooth settings do not activate the connection to third-party audio systems.
- 🔄 Breaking the connection: Try to “forget” the Wi-Fi network on both devices and reconnect by entering a password.
⚠️ Warning: Do not try to update the firmware of your TV or phone while you are livestreaming.This can cause a software failure and connection break that will require both devices to restart.
If neither of these methods works, it makes sense to reset your network settings on your smartphone, which won’t delete your personal data (photos, contacts), but will return to the factory settings of Wi-Fi and Bluetooth settings, which often eliminates hidden driver conflicts.
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The stability of the connection is 90% dependent on the quality of the Wi-Fi router and the absence of physical barriers between it and the devices.