Integration of mobile devices with large screen technology has long ceased to be a luxury and has become the standard for comfortable media consumption. Connecting a Xiaomi phone to an LG TV allows you to view photos, videos and web pages on a wide diagonal without loss of quality. Modern technologies allow you to broadcast content both over wireless channels and through wired interfaces, providing flexibility in all operating conditions.
The process of synchronizing devices usually takes no more than a few minutes, if basic technical requirements are met. Android ecosystem users and owners of panels with WebOS have a variety of native tools for organizing signal transmission. In this guide, we will discuss all current methods of connection in detail, excluding broken or outdated methods.
Preparation of equipment and network for synchronization
Before setting up, make sure both devices are operational and ready to detect external gadgets. A critical condition for wireless data transfer is to find the smartphone and TV on the same local Wi-Fi network. If the router is giving out a signal at 2.4 GHz and 5 GHz, make sure that both gadgets are connected to one of them, although modern routers often combine them into a single network.
On the LG Smart TV side, you should activate the external signal reception function. To do this, on the remote control, press the button with the image of the house or gear to get to the main menu. Find the Screen Share app or Connect to the phone and launch it. The screen will wait for the connection, and in some models you will need to confirm permission to access from an unfamiliar device.
Xiaomi also requires checking settings before starting the procedure.Make sure the Bluetooth module is on, as it is often used for initial handshakes of devices even when transferring video over Wi-Fi.Also check if the power saving mode is activated, which can limit the background operation of network services and interrupt the stability of the connection.
☑️ Checking before connection
Broadcasting through the built-in broadcast function (Miracast)
The most common and quick way to display an image is to use Miracast technology, which is built into the MIUI or HyperOS shell. This method does not require third-party software installation and works at the system protocol level. To start, lower the notification curtain on your smartphone and find the Broadcast or Cast icon. If the icon is not in quick access, add it through the control panel editing menu.
Once activated, the phone will start searching for available displays within range of the network. Your LG TV with the corresponding model number should appear on the list. Click on it, and after a few seconds the image from the mobile device is fully duplicated on the large screen. Latency in this mode is minimal, allowing you to comfortably view videos and photo galleries.
⚠️ Warning: When broadcasting via Miracast, the smartphone screen does not go out and continues to consume energy. For long sessions, it is recommended to connect the phone to the charger to avoid a sudden shutdown.
It is important to note that image quality depends on the power of the router's signal. If you notice artifacts or delays, try to approach the router or turn off downloads on other devices on the network. Some LG TV models may require manual confirmation of the connection on the TV screen at the first pairing.
Use the LG TV Plus app for advanced management
The official LG TV Plus app (formerly known as LG ThinQ) provides a deeper level of integration than standard broadcast. Once you install the program from Google Play and log in, you can not only duplicate the screen, but also use the smartphone as an advanced remote control, which is especially convenient if the physical remote is lost or its buttons stuck.
To connect, open the app and press the new device registration button. The program will automatically scan the network and suggest a list of compatible TVs. Select your LG Smart TV model and enter the confirmation code that appears on the TV screen. Once successfully paired in the application interface, the Screen Share button will be available to start the mirror mode.
The advantage of this method is that you can transfer files directly to your TV or run a specific media library without completely duplicating your phone's interface. You can control video playback, pause or change the volume even if your smartphone screen is off, which saves you a lot of battery power compared to a full desktop broadcast.
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If the app can’t see the TV, try temporarily turning off mobile internet (4G/5G) on your smartphone, leaving only Wi-Fi. This often solves the problem of routing requests.
Multimedia streaming via DLNA and YouTube
To view videos from a gallery or streaming service, you don’t have to duplicate the entire screen of a smartphone. DLNA technology allows you to only transmit media stream using the phone as a remote. Open the video in the Xiaomi gallery, click the Broadcast button (the icon of the rectangle with waves) and select the LG TV in the list of devices.
A similar principle works in the popular YouTube app: click on the broadcast icon in the corner of the video player and select the target device. The video will play directly on the TV, which guarantees maximum picture quality, up to 4K, without loading on the phone's processor. In this mode, the smartphone can be used for other tasks or blocked.
This method is ideal for viewing content from cloud storage or local memory, but is not suitable for games or demonstration of application performance. DLNA supports most video formats, but some specific codecs may not play without prior conversion.
Wired connection via HDMI and adapters
Wireless technology is convenient, but it doesn’t always provide a stable picture without delay, especially in congested air networks. For gaming or viewing heavy content in high bitrate, you’d better use a wired connection. Since Xiaomi smartphones are equipped with a USB Type-C port, you’ll need a special USB-C to HDMI adapter.
Not all phone models support video output via the charging port.The technology required for this is called MHL or DisplayPort Alt Mode. The flagship models of the Xiaomi Mi and Xiaomi 13/14 series usually have this support, whereas the budget Redmi series may not have this feature.
The connection is simple: the adapter is inserted into the phone connector, and the HDMI cable connects the adapter to the TV. After switching the signal source to the TV (Input or Source button), the smartphone desktop will appear on the screen, in this mode, the input delay is minimal, and the image quality is transmitted in the original resolution without compression.
| Connection method | Signal delay | Image quality | Battery consumption |
|---|---|---|---|
| Miracast (Translation) | Medium | High (depends on Wi-Fi) | High-pitched |
| LG TV Plus | Low. | High. | Medium. |
| DLNA / YouTube Cast | Minimum | Maximum (up to 4K) | Low. |
| HDMI (Wire) | Absent. | Perfect (no compression) | Charging (usually) |
Why is there no sound through HDMI?
Solving problems with detection and connection
Despite standardizing protocols, users often face a situation where devices can't see each other. The first step should always be to reboot the Wi-Fi module on both devices. Turn off the wireless network in the phone and TV settings, wait 10 seconds and turn it on again. This resets the network settings cache and initiates a new search.
If the problem persists, check the firewall or antivirus settings on the router. Some router models have AP Isolation, which prevents devices within the same network from communicating with each other. This feature is often enabled on guest networks, so make sure that the phone and TV are connected to the main network.
⚠️ Warning: Make sure the TV has the latest firmware version installed.Outdated software may not support the new Wi-Fi encryption standards used by today's Xiaomi smartphones.
In rare cases, resetting network settings on a smartphone helps. Go to Settings menu → Connection and Sharing → Reset Wi-Fi, mobile networks and Bluetooth. After this procedure, you will need to re-enter your password from your home network, but this often solves problems with network services hanging.
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90% of connection problems are solved by restarting the router or switching devices to the same frequency network (2.4 GHz or 5 GHz).