Xiaomi’s modern smartphones have powerful screens and multimedia capabilities, but sometimes you want to share content with family or friends on the big screen. LG’s webOS TVs offer a variety of tools for syncing with Android mobile devices. Screen broadcasting allows you to output not only video from apps, but also completely duplicate the smartphone interface, turning the TV into a giant monitor.
The connection process can vary depending on the version of the MIUI or HyperOS operating system installed on your device, as well as the year of release of the LG TV. In this article, we will discuss all the current methods, from built-in system functions to the use of third-party applications. Wi-Fi wireless connection is the most convenient and common way, not requiring unnecessary wires and adapters.
Before you start setting up, make sure both devices work correctly. A critical condition for all wireless methods is to find a Xiaomi smartphone and an LG TV on the same local Wi-Fi network. If a router distributes two frequencies (2.4 GHz and 5 GHz), it is desirable that both gadgets be connected to one of them, although modern routers often combine them into a single network.
Equipment preparation and network inspection
The first step should always be to diagnose the network environment. Xiaomi smartphones and LG TVs use DLNA and Miracast protocols, which are tied to the local network. If your router has guest networking, make sure that the devices are not separated on different subnets, otherwise they simply “will not see” each other when scanning.
Also worth checking out software updates. On an LG TV, go to the settings menu and find the system update. On a Xiaomi smartphone, go to Settings → About Phone → MIUI version. Current firmware versions often contain corrections for data protocol errors, which is especially true for older TV models.
If you use complex router settings, such as AP Isolation, you have to turn them off. This feature prevents devices within the same network from communicating with each other, making it impossible to connect. Check the status of the Wi-Fi module on both devices, it should be active.
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Use 5GHz to transmit high-resolution 4K video, as it provides greater bandwidth and lower latency compared to 2.4GHz.
Using the built-in Translation feature in Xiaomi
The easiest and fastest way to display an image is to use a system broadcast feature built into the MIUI or HyperOS shell. This method is based on the Miracast standard, which is natively supported by most modern LG TVs. You do not need to install additional applications if both devices are in good condition.
To start the function, lower the notification curtain down and find the Translation icon (may be called Cast or Wireless Monitor). If the icon is not there, click on a pencil or three dots to edit the Quick Access panel and add it from there. Once turned on, you will start searching for available devices within network range.
On the LG TV, you may have a request to confirm your connection. In some LG models, you need to pre-start the Screen Share app or go to the external inputs section and select the Miracast source. Once paired, the smartphone screen will fully appear on the TV.
☑️ Quick broadcast algorithm
Smart Share and LG TV Plus apps
LG has developed its own ecosystem for mobile device interactions. LG TV Plus (formerly known as LG Remote) not only allows you to control your TV, but also transmit media files, which is convenient if the standard screen broadcast is unstable or requires a constant on the display of your smartphone.
Download the official app from the Google Play Store to your Xiaomi. Once launched, it will automatically scan the network and find your TV. To work properly, you may need to enter the code displayed on the TV screen in the appropriate field on your smartphone, which ensures connection security and protects against unauthorized access.
The app interface allows you to stream photos, videos and music stored in your phone's memory. The Smart Share feature allows you to use your phone as a remote control, which is especially convenient when watching movies online. Unlike mirror display, here video can be played by the TV itself, unloading the smartphone processor.
Broadcasting through YouTube and streaming services
If you want to watch videos from YouTube, Netflix or other streaming platforms, you don’t need to use full mirror display, and these services support Google Cast technology, which is built into most LG Smart TVs.
Open the YouTube app on Xiaomi smartphone and click on the broadcast icon (a rectangle with waves) in the top corner. From the list of devices, select your LG TV. The video will run on a large screen, and you can control playback, volume or even close the application on the phone - playback will not interrupt.
The advantage of this method is that it saves battery power and doesn't have the Miracast-like image delays, and the quality of the image will be determined by the speed of the Internet, not the speed of the local network, which often gives the best result for 4K content, but it won't work for streaming a photo gallery or games.
⚠️ Note: When using third-party apps, make sure that Google accounts on your TV and smartphone match or are linked, otherwise the device may not appear in the casts list available.
Wired connection via USB-C to HDMI adapter
For users who want the highest image quality without compression and delays, or in poor Wi-Fi, wired connectivity will be the optimal solution. USB Type-C can support video output, but not all models have this feature. MHL DisplayPort Alt Mode.
You'll need a special adapter (hub) with HDMI output. One end connects to your smartphone, the other end connects to your HDMI cable to your LG TV. Once connected, the TV automatically detects a new signal source. Switch TV input to the appropriate HDMI port.
This method is ideal for games or presentations where every millisecond of response is important. The image is transmitted in the original resolution supported by the TV matrix. Note that some budget Xiaomi models may not support video output via USB, limited only to data transfer and charging.
| Connection method | Image quality | Delay (Latency) | Battery consumption |
|---|---|---|---|
| Miracast (Translation) | High (depends on Wi-Fi) | Medium | High-pitched |
| Google Cast (YouTube) | Maximum (up to 4K HDR) | Low. | Low. |
| HDMI cable | No loss (Native) | Minimum | Charging is coming. |
| DLNA (Photo/Video) | Original file | Absent. | Medium. |
Why can’t the HDMI adapter work?
The solution: problems and their elimination
Despite the standardization of technology, users often face difficulties: If an LG TV can't see a Xiaomi phone, the first thing to do is check the antivirus or firewall on the router. Sometimes, built-in network protection blocks device detection protocols.
Another common problem is to desynchronize audio and image when wirelessly broadcasting, which is treated by rebooting both devices and the router, and try to turn off mobile internet on your smartphone, leaving only Wi-Fi, so that the system does not try to route traffic through the cellular network.
If the image is twitching or low resolution, the Wi-Fi signal may be too weak. Go closer to the router or TV. In the phone settings under Translation, you can try changing the resolution or frame rate if this option is available in the gear menu.
⚠️ Note: When connecting through HDMI Smartphone adapter can heat up quickly.It is recommended to use a hub with an additional port for charging (PD), to simultaneously transmit video and power the battery.
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The stability of the wireless connection directly depends on the quality of the router and the absence of interference in the air; with constant breaks, switch to the wired method or reduce the quality of the stream.