Xiaomi’s modern smartphones have powerful multimedia capabilities that you often want to share with your family on the big screen. LG’s Smart TVs make it easy to stream content, but the setup process can raise questions for inexperienced users. There are several proven methods for connecting devices, each with its own features and advantages.
In this article, we will take a closer look at wireless and wired connectivity that is relevant to current phone and TV models, learn how to use the built-in Mi Drop and Screen Mirroring features, and how to set up the right setup. HDMI-The best way to get a picture is to get a better understanding of how these technologies work is to avoid delays and dissynchronization of sound.
Before you get to specifics, make sure both devices are ready to go, a basic requirement that often causes failures to connect, check for firmware updates, and make sure the home network is stable.
To get started, you’ll need a stable connection to your Wi-Fi router. If your router supports dual-band, make sure both your smartphone and TV are connected to the same frequency, preferably 5GHz, which will ensure minimal latency when streaming high-resolution video.
Preparation of equipment and compatibility check
The first step is to verify the specifications of your equipment. LG TVs of recent years are equipped with the operating system WebOS, which has built-in support for Miracast and DLNA standards. Xiaomi smartphones based on the MIUI shell or HyperOS also have the necessary functionality out of the box.
It is important to check the software version on both devices. Outdated firmware may contain bugs that prevent devices from being found on the local network. Go to the system settings and check for available updates.
To check the version of the software on your TV, click the settings button on the remote, then select All settings → Support → Software Update. On a smartphone, the path usually looks like this: Settings → About Phone → MIUI version. If updates are available, they can take from 5 to 20 minutes to install.
Also worth looking at is the router model: Older 802.11n routers may not be able to handle 4K video streaming, causing constant buffering, so it’s better to lower the broadcast quality or consider a wired connection option.
Wireless connection through the function "Translation"
The most popular and convenient way to display images is using Wi-Fi Direct or Miracast technology, which in the Xiaomi ecosystem is called "Translation" or "Wireless Monitor", which allows you to duplicate the screen of your smartphone on your TV in real time without loss of quality.
To start the process, open the curtain control panel on your smartphone and find the "Translation" icon. If it's not visible, click on the edit button (usually three dots or a pencil) and drag the icon to the active panel. The system will begin to search for available devices within range.
On an LG TV, you need to run the Screen Share app (in new models it can be called the Connection Manager or be built into the login menu). Once the TV becomes searchable, select it from the list on your smartphone.
☑️ Pre-broadcast checks
⚠️ Note: When using wireless broadcast, the smartphone battery discharges much faster. It is recommended to keep the phone connected to the charger or use a docking station.
If the connection is successful, you'll see an exact copy of the phone's display on the TV screen, the orientation of the image will change automatically when you turn the smartphone, and you'll need to click the "Disable" button on the phone screen or the "Exit" button on the TV remote to exit the broadcast mode.
Using Chromecast Technology and Google Home
Many of LG’s modern TVs have built-in support for Google Cast (Chromecast built-in) protocol, which allows content from apps to be streamed directly without duplicating the entire screen of a smartphone, saving battery life and ensuring more stable video playback.
To work with this method, the Google Home app must be installed on your smartphone. If it is not pre-installed, you can download it from the Google Play store. Once installed, open the app and find your TV on the list of available devices.
Inside the player apps, such as YouTube, Netflix or VK Video, a special broadcast icon (a rectangle with waves in the corner) will appear, and by clicking on it, you can select the target device, the video stream will be transmitted directly from the server to the TV, and the phone will act as a remote control.
| Parameter | Miracast (Translation) | Chromecast (Google Cast) | HDMI cable |
|---|---|---|---|
| Image quality | Depends on the Wi-Fi signal. | High (up to 4K HDR) | Maximum (no compression) |
| Delay (Latency) | Medium/High | Low. | Absent. |
| Battery consumption | High-pitched | Low. | Minimum (charges coming) |
| Use of the telephone | Screen's busy. | You can use other apps. | Screen's busy. |
This method is particularly handy if you want to continue watching a movie while you need your phone for calls or correspondence.The TV will play content autonomously, receiving only control commands.
What if Chromecast doesn’t see TV?
Connection via HDMI cable and adapter
For users who want maximum image quality or connection stability, wired connectivity is the best choice. However, most Xiaomi smartphones do not have a full HDMI video output via a USB-C port, unless they are flagship models with DisplayPort Alt Mode support.
Budget and medium-sized models will require a special adapter MHL Or a Slimport that's compatible with your phone model. First, connect the adapter to the smartphone charging connector, then connect it. HDMI-The TV will automatically detect a new signal source.
Once connected, the image may not appear immediately. Sometimes you need to manually select the appropriate input port on the TV remote (for example, HDMI 1 or HDMI 2). In the phone settings, you may need to allow debugging over USB or switch port mode.
⚠️ Note: Not all cables USB-C Cheap charging cables won't work - only use certified video-enabled cables (usually marked as "cables") 5A or Thunderbolt).
The advantage of the wired method is that it doesn't depend on the quality of the Wi-Fi network. You can play games with minimal latency or watch movies in 4K without buffering. Also, the phone will charge during use if the adapter has an additional power port.
Setting up LG ThinQ and Mi Remote
LG's official ThinQ app lets you control your TV from your smartphone, but can also be used to transfer photos and videos to the big screen. Install the app from Google Play and sign up for LG. Add your TV by following the on-screen instructions.
Inside the app, select Media or Gallery to select files to play, a convenient way to show guests vacation photos or play music for a party, and supports a variety of file and codec formats.
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Use the Magic Remote feature in the LG ThinQ app to control the TV if the physical remote is lost or discharged.
Alternatively, the MIUI-built Mi Remote app allows you to control an infrared port (if you have one in the model) or work over Wi-Fi. Although the main function is control, some versions have the ability to quickly transfer screenshots to the TV screen.
To set up remote access, make sure that the LG ThinQ app has enabled the "Mobile Connection" option, which will allow you to control your TV even when you're in another room where the Wi-Fi signal may be weaker.
Solving Common Connection Problems
Despite the simplicity of the technology, users often face difficulties, and one of the most common problems is that the TV doesn't appear on the list of available devices, which usually indicates that the devices are on different subnets or that the isolation of customers on the router is enabled.
Check router settings. AP Isolation prevents devices within the network from communicating with each other, and must be turned off in the router's admin panel in the wireless network section.
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If the devices can’t see each other, try handing out Wi-Fi from your phone (modem mode) and connecting the TV to this access point – this will eliminate problems with the router’s settings.
Another problem is the desynchronization of sound and image, which is typical of wireless methods with a weak signal, try to approach the router or switch the TV to a wired LAN connection, if this option is supported by the model.
If the image twitches or is low resolution, check the resolution settings on the TV itself. Sometimes you need to manually set the 16:9 format or Just Scan mode in the LG TV image menu to remove the black fields and stretch the picture.