Modern Redmi smartphones offer powerful multimedia capabilities that allow you to stream content to large screens. Connecting a Xiaomi device to the LG panel gives you access to watching movies, photo galleries and even mobile games on a wide display. There are several proven synchronization methods, each of which has its own characteristics and use cases.
The choice of method depends on the model of your TV and the version of the Android operating system. Some methods do not require the availability of the Internet, while others, on the contrary, critically depend on the stability of the Wi-Fi network. It is important to understand the difference between a simple mirror display of the screen and a full translation of media files through the screen. DLNA-server.
In this article, we will take a look at all the current connectivity options, from built-in MiUI functions to the use of specialized applications, learn how to configure sound and image transmission with minimal latency, as well as how to avoid common errors when pairing devices.
Preparation of equipment and network
Before setting up, make sure that both devices are in working order and have up-to-date software versions. Connectivity depends on the quality of the router and its location in the room. If the LG TV and Xiaomi smartphone are in different parts of the room, the signal may be unstable.
Be sure to check if the gadgets are connected to the same wireless network. Often users face a problem when the phone is running over 4G mobile Internet and the TV is connected to home Wi-Fi. In this case, detecting the devices will be impossible without using the access point.
⚠️ Note: If your router supports dual-band, make sure both devices are connected to the same frequency (either 2.4GHz or 5GHz), as some older TV models are available. LG They may not see devices on different subnets.
For wired connectivity, you’ll need a quality USB-C to HDMI adapter. Cheap cables may not support high-resolution video transmission, limited to just charging the device. Check the cable specification before buying, looking for MHL or Alt Mode support.
- 📱 Make sure that the Redmi smartphone is enabled Wi-Fi and Bluetooth module.
- 📺 Check that the TV is LG connected to the same Wi-Fi network.
- 🔌 When using the cable, make sure that ports and adapters are in good condition.
- 🔄 Update the applications LG Content Store and Google System Services.
Ignoring the preparatory phase often results in devices simply not seeing each other. Detection protocols only work properly when networking requirements are met. If you use a guest network in a hotel or office, access to local devices may be blocked by the router's security settings.
☑️ Checking before connection
Wireless streaming via Miracast (Wi-Fi Direct)
Miracast technology is the standard for wireless image transfer without loss of quality. In Xiaomi smartphones, this feature is often called Translation or Wireless Display. LG TVs support this protocol natively, which simplifies the process of setting up to a few clicks.
To start the process, open the curtain control panel on your phone and find the Translation icon. The system will automatically start searching for available displays within range. When your LG TV name appears on the list, click on it to initiate a connection.
A request for confirmation of connection may appear on the TV screen, a standard security measure to prevent unauthorized access to your screen, and once confirmed, the image from your Redmi smartphone will appear on the big screen in either horizontal or vertical orientation.
It is important to note that when using Miracast, the phone screen is completely duplicated, meaning that any notifications, calls or messages will be visible to everyone in the room, and it is better to use Do Not Disturb mode to view personal content.
The quality of the image depends on the loading of the wireless channel. If you notice artifacts or audio delay, try to free the channel by disconnecting other devices from Wi-Fi. Input lag can be noticeable in dynamic games, so this method is less suitable for gaming than a wired connection.
Use of the built-in Mi Cast function
The MiUI shell, which is installed on Xiaomi and Redmi phones, features its own technology called Mi Cast, which is optimized for smart TVs and provides a more stable connection compared to the standard Android protocol.
To activate the feature, go to the Settings menu, then select Connect and Sharing and find Translation. An alternative path can be in the Mi Remote app or in the media menu. Once turned on, the phone will start scanning the network.
If your LG TV is running on a webOS platform, it should be defined as an affordable device, the advantage of the Mi Cast is the ability to control playback from a locked screen in some scenarios, as well as improved video stream encoding.
⚠️ Note: Mi Cast may not work properly if the TV is activated to save the screen or if the router isolates customers from each other (AP Isolation).
Some versions of MiUI require manual permission to access the local network, without which the system firewall can block outgoing connections to the TV, and check the permission settings for system applications that display the image.
The technology allows you to broadcast not only the desktop, but also specific media files through the built-in player, which reduces the load on the smartphone processor, because the decoding is done by the TV, the energy consumption in this mode is much lower than with full mirroring of the screen.
Secrets of Mi Cast
Broadcasting via LG TV Plus
The official LG TV Plus app (formerly known as TV Remote) provides advanced control and broadcasting capabilities, is available for download on the Google Play Store and is fully compatible with Redmi smartphones.
Once the app is launched, you need to do the initial pairing, and the code will appear on the TV screen that you need to type into your smartphone, and after the successful pair, the "Screen Share" or "Screen Translation" button will appear in the app interface.
The main advantage of using proprietary software is that you can transfer files from the gallery or video player directly, bypassing full mirroring. You can continue to use your phone while there is video on the TV, which is especially convenient for showing presentations or photo reports.
- 📲 Download the app LG TV Plus from the official store.
- 🔗 Connect your phone and TV to the same Wi-Fi network.
- ✅ Accept the request for pairing on the TV screen.
- 🖥️ Use the Screen Share menu to display the image.
The app also allows you to manage the DLNA library if it's configured on a smartphone. You can create a playlist from the video files stored in Xiaomi's memory and stream them to LG in high quality. Buffering in this mode is faster thanks to optimized data transfer algorithms.
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If the app doesn’t find the TV, try temporarily turning off mobile internet on your smartphone, leaving only Wi-Fi, which will force the system to prioritize the local connection.
Connecting via HDMI adapter
For users who are critically interested in image quality and lack of delay, wired connectivity is the ideal solution. Xiaomi smartphones with a USB Type-C port often support video output via the DisplayPort Alt Mode standard, which allows you to transmit images in 1920×1080 or even 4K resolution.
You will need a dedicated USB-C to HDMI adapter, just plug one end of the adapter into the phone's charging socket, and insert an HDMI cable into the TV at the second end, and switch the signal source to the TV to the appropriate port (e.g. HDMI 1).
Unlike wireless methods, it doesn't require network setup or pairing, and it shows up instantly after you connect the cable, and the stability of the connection is absolute: no breaks, no freezes, no compression artifacts.
| Parameter | Wireless (Wi-Fi) | Wireless (HDMI) |
|---|---|---|
| Image quality | Depends on the signal. | The Perfect (Lossless) |
| Delay (Latency) | High (100-300 ms) | Minimum (< 10 ms) |
| Mobility | Tall. | Limited by cable length |
| Battery consumption | High-pitched | Low (charging in) |
It is important to consider that not all Redmi models support video output via USB-C. Budget models often lack this feature and the adapter will only work as a normal charger.
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Wired HDMI is the only way to play mobile games on your TV without noticeable control delay.
Broadcasting content from YouTube and streaming services
The most popular use case for Xiaomi and LG is watching YouTube videos, which uses Google Cast (Chromecast built-in) technology, which is built into most modern LG Smart TVs.
The process is as simple as possible: open the YouTube app on your smartphone, click on the broadcast icon (a rectangle with waves) in the corner of the video and select your TV from the list. The video will play on the big screen, and the phone will turn into a remote control.
The main difference is that the phone is just a controller, and once it's started, it flows directly from the Internet to the TV, without loading the processor or battery on the smartphone, and the video quality automatically adjusts to the speed of your Internet channel.
⚠️ Note: Chromecast requires that Google accounts on your TV and smartphone be logged in, although in base mode this is not always strictly required if devices are on the same network.
Many other services, such as Netflix, IVI or Kinopoisk, work the same way if the TV has an app installed. If there are no TV apps, some services allow you to stream content through a browser, but the functionality may be limited.
If the broadcast button doesn't appear, make sure both devices are using the same Google account or are on the same subnet. IP-multicast traffic addresses.
How to broadcast without the Internet?
Solving Connection Problems
Despite the ease of setting up, users often face difficulties, and one of the most common problems is that the TV can't see the phone, and 90 percent of the time, this is solved by restarting the router, because detection protocols (SSDPs) can stick in the network cache.
Another common problem is desynchronizing sound and image, which is typical of wireless methods with a weak signal. Try to get closer to the router or switch the Wi-Fi frequency to 5 GHz if your router and TV support this range.
If there is no signal when connecting wired, check if the port is activated. HDMI Some models are in the settings of the TV. LG require manual activation of the mode HDMI Ultra HD Deep Color for certain ports to transmit HDR-phone-in.
- 🔄 Restart the router and both devices.
- 📡 Check if the antivirus is blocking the local network.
- 🔌 Replace the cable. HDMI or adapter for a knownly serviceable.
- 📲 Update YouTube app and Google system services.
In rare cases, the problem is that screen resolutions are incompatible. If the phone tries to display a non-standard resolution image, the TV may show a message, "Unsupported format." Try changing the screen resolution in the developer's settings on the smartphone.