Modern multimedia systems allow you to turn a regular smartphone into a powerful control center for the home theater. Owners of Xiaomi equipment and LG TVs often wonder how to bring an image from a small screen to a large panel without using unnecessary wires. Screen Share technology, built into the operating systems of both devices, allows you to do this almost instantly, providing video transmission in high resolution.
The synchronization process is based on Miracast standards and Wi-Fi Direct, which means there is no need for an active Internet connection, although a router will be required to create a local network. MIUI, the shell of Xiaomi smartphones, has deeply integrated broadcast functions that can be called differently depending on the version of the system. Understanding the principles of these protocols will help avoid typical errors on the first run.
In this article, we will take a look at all the steps of setting up, from hardware preparation to fine-tuning image settings to minimize delays. You will learn how to activate hidden functions, what router settings can block a connection, and how to use third-party applications if the usual tools are unstable. The key to a successful connection is to find both devices on the same Wi-Fi subnet, even if the Internet channel is temporarily unavailable.
Preparation of equipment and network
Before starting the connection procedure, make sure that both devices are in good condition and ready to work in wireless data mode.The foundation for stable operation of Screen Share is a quality wireless network. Make sure your router supports 802.11n, 802.11ac or later, as older protocols may not provide the necessary bandwidth for video streaming.
It is important to check that LG TV has the latest version of the webOS operating system installed. Manufacturers regularly release updates that fix security protocol vulnerabilities and improve compatibility with Android devices. On Xiaomi smartphone, it is also recommended to check for updates in the system settings section, since Wi-Fi module drivers are often updated along with security patches.
⚠️ Note: If your router is giving away two networks (2.4 GHz and 5 GHz) with different names, make sure that both the phone and the TV are connected to the same frequency.
You can use built-in tools to diagnose the network. On your TV, go to the network settings menu and check the connection status. On your Xiaomi phone, in Settings → Wi-Fi, you can see the signal quality. If the signal is weak, the broadcast quality will be low, regardless of the transmitter power.
Setting up an LG TV to receive a signal
LG webOS-based TVs have a built-in wireless signal receiver module, which can be called Screen Share or Miracast in different models. To activate the standby mode, you need to find the corresponding application in the launcher start menu, usually located at the top of the list or in the folder with system utilities.
Once the app is running, a connection waiting window will appear on the screen. Some LG TVs require you to manually allow connection from unknown devices. To do this, in the Screen Share application settings, you need to find the "Allow Connection" or similar item and switch it to the active state. Without this step, the Xiaomi phone can see the TV but cannot initiate the connection.
- 📺 Open the main menu of the TV and find the Screen Share app or Mobile devices.
- 🔌 Make sure that Wi-Fi Direct is active in your TV network settings.
- 🔒 Check your privacy settings: Block All mode should be turned off.
- 📡 Write down the device name displayed on the screen to identify when connected.
The interface of the application may vary depending on the version of webOS. In older versions, the interface is more minimalistic, while newer versions offer advanced settings, including the ability to install. PIN-If you plan to use transcription often, it makes sense to turn off the confirmation request on the TV to speed up the connection process.
☑️ Readiness of the TV LG
Activation of the broadcast on the smartphone Xiaomi
In Xiaomi smartphones with a MIUI shell or HyperOS, the wireless projection function is implemented through the system service Translation. You can find it in several ways, but the fastest is through the control center. Swipe down from the upper right corner of the screen (or up from the bottom, depending on the navigation settings) to open the notification curtain.
In the shortcut list, find an icon called Broadcast or Cast. If the icon is hidden, click on the edit button (usually a pencil or three dots) and drag it to the active bar. Alternative path through settings: go to Settings → Connection and Sharing → Broadcast. Here you can turn on the feature and see the list of available devices.
Once the feature is enabled, the phone will start scanning the available receivers on the local network. The search process can take from 5 to 15 seconds. The list should show your LG TV with a previously recorded name. Click on it to begin the pairing procedure. The TV screen may have a request for permission to connect, which must be confirmed by the remote.
⚠️ Note: On some versions MIUI When you activate the broadcast, Bluetooth and geolocation automatically turn on, which is necessary for the correct operation of the device detection protocol and is not a system error.
The quality of the transmitted image depends on the workload of the smartphone processor. If you plan to broadcast heavy games or video in 4K, close the background applications to free up the system resources, this will help to avoid jerks and dissynchronization of sound.
What to do if your phone can’t see TV?
Comparison of Connection Methods: Miracast and Chromecast
Users often confuse the built-in Screen Share (Miracast) feature with the Google Cast (Chromecast) technology built into LG TVs. These are two different protocols with different working principles. Miracast creates a direct connection between the phone and the TV, dubbing the screen one at a time. Google Cast sends a link to content that the TV downloads itself, which reduces the load on the smartphone.
To use Chromecast on your Xiaomi phone, you don’t need to enable a special “Translation” feature. Just open an application that supports this technology (for example, YouTube, Netflix or Chrome browser), click on the wave rectangle icon and select a TV, in which case the phone screen does not necessarily need to burn, and you can use other applications.
| Characteristics | Miracast (Screen Share) | Google Cast (Chromecast) |
|---|---|---|
| Principle of work | Full screen duplication | Link streaming |
| Dependence on the phone | High (the screen should work) | Low (you can use the phone) |
| Image quality | Depends on the power of the phone. | Maximum (depending on TV) |
| Battery consumption | High-pitched | Low. |
If you want to show photos from a gallery, a presentation or a game that doesn’t have Cast built-in support, use Miracast. Google Cast is preferable to watching movies from online cinemas, as it provides a more stable picture and less energy consumption.
Addressing delays and quality issues
One of the most common problems with Screen Share is the lag between the action on the phone and the display on the TV, especially in games or when the mouse cursor is moving, the main reason is congested radio channel or slow data exchange between the router and devices.
To minimize delays, try to switch the router to 5GHz mode only if your devices support this range. 2.4GHz is often overloaded with signals from neighbourhood networks and household appliances such as microwaves. It is also recommended to turn off QoS (Quality of Service) on the router if it does not work properly, or, conversely, prioritize TV traffic.
- 📶 Get closer to the router to improve the Wi-Fi signal level.
- 📺 Turn it off. VPN on a Xiaomi smartphone, as it can redirect traffic through remote servers.
- 🔄 Restart your router to clear the cache and select the least loaded channel.
- 🎮 Close all background downloads on other devices on the network.
If the problem persists, check your phone's power saving settings. Energy Savings mode may limit the Wi-Fi module's performance to save charge, causing a drop in broadcast quality. Switch to Performance or Balanced for the duration of Screen Share.
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For games, use Game mode in the broadcast settings if available, or lower the output resolution in your phone settings to 720p to increase FPS.
Use of third-party applications
Xiaomi and LG's regular tools work well in ideal conditions, but sometimes a more flexible tool is needed. There are a number of third-party apps from Google Play that can solve compatibility issues. One of the most popular and reliable solutions is the Web Video Caster app or Tv Cast for LG.
These applications often have their own codecs and compression algorithms, which allows you to broadcast video formats that the TV's built-in player does not support. In addition, they allow you to stream not only videos, but also files from the file manager, supporting formats that a standard Screen Share can ignore.
When using third-party software, it is important to pay attention to the permissions that the application requests. To work properly, they need access to the local network and storage. Some features may only be available in the paid version, but the basic broadcast is usually free. Installing such an application on a Xiaomi phone can be a great backup option.
⚠️ Warning: When installing broadcast apps from unknown sources or third-party stores, be careful. download software only from the official Google Play Store to avoid the introduction of malware that can intercept data from your screen.
Some apps allow you to control playback with voice commands or create playlists, which makes Xiaomi + LG a full-fledged multimedia system, and if you often watch content from torrents or cloud storage, these applications will be indispensable tools in your arsenal.
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Third-party apps are the best solution if the built-in Screen Share feature doesn’t support a specific video file format or is unstable.