Xiaomi’s modern smartphones have powerful screens and multimedia capabilities, but sometimes 6 inches diagonal isn’t enough to watch movies or present photos. In such cases, LG Smart TVs come to the rescue, allowing you to display images from a mobile device to a large screen, a process called broadcasting or screen duplication, has become the standard for home entertainment.
There are several proven methods of syncing your gadget with your TV, ranging from wireless technology to cable connection. The choice of the specific method depends on the model of your TV, the version of the MIUI or HyperOS operating system, as well as the availability of additional accessories. In this article, we will discuss each of the options in detail so that you can enjoy high-quality content without delay.
It’s worth noting that most of LG’s current models released after 2015 support the Miracast standard, which is built into the shell of Xiaomi smartphones.This means that you don’t need complex router settings or expensive consoles to stream basic broadcasts.
Preparing devices for wireless synchronization
Before you start any manipulation, you need to make sure that your equipment is ready to go. The main requirement for a wireless connection is a stable Wi-Fi network. Both devices — both smartphone and TV — must be connected to the same router. If you have a dual-band router, it is advisable to use 5 GHz for high-resolution video transmission.
On LG TVs, the signal reception function is often turned on by default, but in older models it must be activated manually. To do this, on the remote control, press the Input button or select the Screen Share signal source from the menu. The screen will display a wait for connection, which signals the TV's readiness to receive data.
On the smartphone side, Xiaomi also requires a number of pre-actions: Make sure the Wi-Fi module is active and Bluetooth is on for the initial handshake of devices. Sometimes the system may request permission to be detected by devices nearby - in which case you need to confirm the action.
⚠️ Note: If your router supports Client Isolation, wireless broadcasting will not work, which prevents devices on the same network from communicating with each other.
☑️ Checking before connection
It is also important to check for software updates. On LG TVs with WebOS, updates come automatically, but manually check in Settings → Support → Software Update. For Xiaomi smartphones, the relevance of the MIUI version is critical, as new versions often fix Wi-Fi Display protocol errors.
Broadcasting through the built-in function "Translation"
The easiest and fastest way to display an image is to use a regular Android tool called Translation in the MIUI shell, which requires no third-party apps and works on most LG Miracast-enabled TVs.
To start the function, do the following: Open the curtain control panel or go to the Settings app. Find the Connection and Sharing section (in older versions of MIUI it may be called Wireless Networks).
Once the slider is turned on, the smartphone will start looking for available displays. Your LG TV should appear on the list. Click on the model name, and in a few seconds the image from the phone will appear on the TV screen. In the default broadcast mode, the phone works as a touchpad, and the image is duplicated.
What to do if the TV is not found?
The process is controlled through a pop-up menu on the smartphone screen, where you can turn off the sound, change the orientation of the screen or end the session. The quality of the picture depends on the power of the Wi-Fi signal and the loading of the channel. When watching dynamic video, you can experience micro-latency, which is the norm for Miracast technology.
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Embedded broadcasting is a native method that does not require additional software installation, but it can have a small image latency, which is noticeable in games.
Use of the LG TV Plus app
If standard broadcasting is unstable or you need advanced functionality, such as managing your TV from your phone or transferring files, use the official LG TV Plus app, which is available on Google Play Market and optimized to work with the LG ecosystem.
Once installed, run the app on your Xiaomi smartphone, it will automatically scan the network and find compatible TVs. When you first connect, a confirmation code may appear on your TV screen that you need to enter on your smartphone, which ensures connection security and prevents unauthorized access.
The functionality of the application goes beyond just duplicating the screen.
- 📱 Use your smartphone as a remote control with a touchpad.
- 📂 Transmit photos and videos from the gallery directly to the TV media player.
- 🎮 Run games on your phone and display them on the big screen (Game Pad mode).
- 🔊 Adjust volume and switch signal sources.
The app is especially useful if the TV's built-in keyboard is inconvenient for typing, such as when searching for YouTube videos. You can type on your Xiaomi keyboard and it will appear in the TV's search bar. LG TV Plus can also run streaming services installed on your phone right on your TV, bypassing the entire screen duplication phase.
⚠️ Attention: Annex LG TV Plus may not work on very old TVs (before 2012) or on NetCast devices, as it is primarily designed for the WebOS platform.
Broadcasting via Google Home and Chromecast
Many modern LG TVs have built-in support for Chromecast built-in technology, which allows you to stream content from applications that support this standard directly, without straining the smartphone processor.
Download and install Google Home from the app store. Open the program and make sure you are logged in to your Google account. The main window will show all available devices on the network. Find your LG TV and click on it. From the menu that opens, select the option to Translate screen.
The advantage of this method is that it supports high-resolution data transfers, up to 4K. Unlike Miracast, it uses Google Cast protocol, which is better at buffering video. You can fold the app or even lock the phone, and playback on the TV will not stop.
Importantly, when broadcasting via Chromecast, the phone acts only as a remote control, the video is downloaded by the TV directly from the Internet, which saves battery power and frees up its resources, which is ideal for watching movies from online cinemas.
Wired connection through HDMI-cable
For users who are critical to maximum image quality and no delays, wired connectivity is the best solution. However, Xiaomi smartphones do not have an integrated HDMI port, so a special adapter (adapter) will be required.
You’ll need a USB Type-C to HDMI adapter. It’s important to make sure your smartphone supports video output via the charging port, supported by the flagship Xiaomi Mi and Xiaomi 11/12/13 series, as well as some Redmi Note models with DisplayPort Alt Mode support. Budget models may not transmit video via USB, even with an adapter.
The connection process is as simple as possible:
- Connect the adapter to the smartphone charging connector.
- Insert the HDMI cable into the adapter and the free port of the LG TV.
- On the TV remote, press the source select button (Input) and select the appropriate port (e.g. HDMI 1).
- The image from the phone should automatically appear on the screen.
With this connection, the phone can start charging from the network (if the adapter has an additional power port), which allows you to watch movies for a long time. HD or Ultra HD.
| Connection method | Image quality | Delay (Latency) | Charging the phone |
|---|---|---|---|
| Broadcast (Miracast) | Up to 1080p. | Medium | No (battery consumption) |
| Google Chromecast | Up to 4K. | Low. | No (battery consumption) |
| HDMI cable | Up to 4K HDR | Absent. | Yes (in case of food availability) |
⚠️ Note: When buying an adapter USB-C to HDMI Avoid cheap Chinese counterparts without branded labels, often not supporting video transmission or operating unstablely, causing screen flickering.
Problem Solving and Quality Customization
Despite the simplicity of the procedures, users may encounter a number of technical difficulties. One of the most common problems is to desynchronize the sound and image. If you notice that the sound is behind the video, try changing the quality or restarting the session in the broadcast settings on your phone.
Another common problem is the black screen when trying to run videos from licensed online cinemas (such as Netflix or ivi), which is related to protecting HDCP content. In such cases, screen duplication may be blocked, and it is recommended to use the built-in cinema app on the LG TV itself, having logged in to it.
To improve the stability of the connection, follow the following recommendations:
- 📶 Get closer to the router to boost the Wi-Fi signal.
- 📺 Close background apps on your smartphone that consume traffic.
- 🔄 Restart your router if the network is overloaded by other devices.
- 🆙 Update YouTube or Google Home to the latest version.
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If the image on the TV doesn’t fill the entire screen (black fields are visible), check the aspect ratio settings on the LG remote (Aspect Ratio or P/Size button) and select Just Scan or 16:9 mode.
Also worth mentioning is the resolution setting. In some Xiaomi models, you can force output permission to be set in the engineering menu or through hidden developer settings, but for the average user, it is better to leave automatic selection, since the system itself will determine the optimal parameters for your LG model.