Modern smartphone users are often faced with the need to view footage or streaming content on a large screen. The small display of a gadget is not always able to convey the full depth of the picture, especially when it comes to family viewing or presentation. Fortunately, the ecosystem Android- a gadget is not always able to convey the full depth of the picture, especially when it comes to family viewing or presentation. Fortunately, the ecosystem LG Smart TV offers many tools for wireless and wired connection with mobile devices.
The casting process may vary depending on your phone's operating system version and TV model. Some methods require a single Wi-Fi network, while others work autonomously through a direct connection. In this article, we will analyze in detail all the current methods, from built-in functions to third-party applications, so that you can choose the best option for your situation.
It is worth noting that the quality of image transmission directly depends on the bandwidth of your router and the distance between devices. Before you start setting up, make sure that both gadgets are turned on and are in an area with reliable signal reception. We will consider both universal protocols and specific solutions from the manufacturer.
Using the built-in Screen Share function
The easiest and fastest way to connect devices is to use native technology Screen Share, which is based on the Miracast standard. This function is built directly into the TV firmware LG WebOS and does not require installing additional software on your smartphone. The operating algorithm is extremely simple: the TV creates an access point or searches for devices on the local network.
To get started, you need to activate the signal reception mode on the big screen. Go to the application menu and find the icon with the name Screen Share. Once launched, the application will go into connection waiting mode. At this stage, it is important to make sure that the function is not blocked by privacy or parental control settings.
The next steps depend on the model of your smartphone. Owners of Samsung devices should open the quick settings panel and select Smart View. Xiaomi users will need the function Cast, and owners of pure Android will need the item Screen Cast in the connection settings. The phone will start searching for available displays.
- 📺 Make sure the TV is turned on and in HDMI or Smart TV mode.
- 📶 Connect both devices to the same Wi-Fi network for stable operation.
- 🔒 When a request appears on the TV screen, confirm the connection with the remote control.
- ⚙️ Disable power saving on your phone to avoid disconnection.
⚠️ Attention: When using Screen Share, the phone screen is completely duplicated on the TV. This means that all notifications, incoming calls and personal messages will be visible to everyone in the room.
If the connection fails the first time, try restarting the Wi-Fi module on both devices. Sometimes it helps to temporarily disable Bluetooth, which can cause interference in the 2.4 GHz band. After successful pairing, the image will appear on the large screen with minimal delay.
Broadcast through the LG ThinQ application
For deeper integration and content management, the company LG Electronics developed a proprietary application LG ThinQ. This tool allows you not only to duplicate the screen, but also to manage media files, running them directly from your phone to your TV without loading the mobile processor. This approach often provides better picture quality.
The first step is to install the utility from the store. Google Play. After launch, you must go through the registration procedure or log into an existing account LG. The application will automatically scan your local network and detect compatible TVs. If the device is not found, check your router's firewall settings.
In the app interface, select your TV from the list of available devices. To broadcast video, open the built-in player or gallery in the application, select the desired file and click the data transfer icon. The system will prompt you to select a display mode: full mirror or launch a specific media file.
☑️ Preparing to connect ThinQ
A feature of this method is the ability to use a smartphone as a remote control. You can adjust the volume, rewind videos, and change the TV screen brightness right from the app interface. This is especially convenient if the original remote control is lost or discharged.
⚠️ Attention: The functionality of the LG ThinQ application may vary depending on the year of manufacture of the TV. On older models of the NetCast 4.0 series, support may be limited or absent.
Connecting via HDMI cable and adapters
When the wireless connection is unstable or maximum image quality without compression is required, a wired connection comes to the rescue. Using a cable HDMI guarantees signal transmission in 4K resolution without delay, which is critical for dynamic games or watching movies at high bitrates.
Since modern smartphones do not have a full-size HDMI port, you will need a special adapter. For devices with a port USB Type-C you need an adapter that supports the technology MHL or Alt Mode. Owners of older devices with Micro-USB should look for adapters that are compatible with their specific processor model.
| Adapter type | Compatibility | 4K support | Features |
|---|---|---|---|
| USB-C to HDMI | Android flagships | Yes (60 Hz) | Requires DP Alt Mode support |
| MHL adapter | Old smartphones | No (max 1080p) | Often requires external power |
| Slimport | LG, Nexus devices | Depends on the model | Does not require power from an outlet |
| Universal hub | Any USB-C | Yes | Allows you to charge your phone at the same time |
The connection is carried out according to a simple scheme: the adapter is inserted into the phone's charging connector, and an HDMI cable connects the adapter to the TV. After this, you need to press the button Input on the TV remote control and select the appropriate port, for example HDMI 1. The image should appear automatically.
Use an adapter with an additional charging port, since broadcasting video via cable uses up the smartphone's battery much faster.
The advantage of the wired method is that it does not depend on Internet speed and air traffic congestion. You can watch videos even in a country house where there is no stable Wi-Fi coverage. The only disadvantage is the need to purchase additional equipment and the presence of wires.
Chromecast and Google Home technology
Many modern TVs LG are equipped with built-in support for the platform Google Cast (Chromecast built-in). This allows you to stream content from supported applications, such as YouTube, Netflix or Spotify, directly to the TV screen, bypassing the process of duplicating the entire phone interface.
To control the broadcast, you will need an application Google Home, which acts as a smart home control center. After installation and configuration, the app will find your TV on the network. Click on the device icon and select Cast screenif you want to show the desktop, or use the Cast button inside the video player.
The main difference between this method and Screen Share is that the phone only acts as a remote control. The video stream is downloaded by the TV directly from the Internet, which saves battery power on the smartphone and does not load its processor. You can minimize the application or even turn off the phone screen, and the video will continue to play.
⚠️ Attention: Chromecast requires the latest version of WebOS firmware to be installed on the TV. On very old models, this function may not be available in hardware.
If there is no built-in support, you can purchase an external set-top box Chromecastthat connects to the HDMI port. It will add broadcast functionality to any, even the oldest TV with an HDMI input. Setting up an external set-top box is done in the same way through the Google Home application.
Why does video slow down during broadcast?
Delays often occur due to the low speed of the Wi-Fi channel. Try switching your router to the 5 GHz band or moving your phone closer to the router.
Third-party streaming apps
In cases where standard methods do not work or require advanced functionality, applications from third-party developers come to the rescue. apps like Web Video Caster or AllConnect can convert video streams into a format understandable by the TV and send them via the DLNA protocol.
The principle of operation of such utilities is as follows: you open a video file or a link to a stream inside the application, select the target device from the list and start playing. The application takes care of signal encoding, which allows you to watch videos even in formats that the TV does not natively support.
Some apps allow you to broadcast content from browsers that do not have a built-in Cast button. This is especially useful for watching videos from various online movie theaters that block standard streaming methods. Installation is carried out as standard through the app store.
- 📲 Web Video Caster - a powerful tool for streaming video from the browser.
- 🎵 AllConnect - great for transferring music and photos to TV.
- 📺 LocalCast - specializes in local files from memory phone.
- 🌐 BubbleUPnP - advanced settings for advanced users.
It is worth considering that free versions of such applications often contain advertising that can be displayed on the TV screen while connected. For comfortable use without restrictions, it is reasonable to consider purchasing a premium version.
Third-party applications are an ideal solution for playing specific video formats that the built-in TV player cannot open.
Solving common connection problems
Despite the simplicity of technology, users often encounter situations where the phone cannot see TV or connection keeps dropping. Most often, the problem lies in the network settings or incompatibility of security protocol versions.
The first thing you need to check is whether the devices belong to the same subnet. If your router distributes two networks (guest and main), make sure that both gadgets are connected to the same one. Also check to see if the router's AP client isolation feature is enabled, which prevents devices from seeing each other.
The second common cause is outdated software. Manufacturers regularly release updates that fix connection bugs. Go to the TV settings through the menu All settings → Support → Software update and check for new versions.
⚠️ Attention: Menu interfaces and item names may differ on different versions of WebOS. If you don't find the item you need, check the official documentation for your specific TV model.
If all else fails, try resetting the network settings on both devices. Delete the saved Wi-Fi network on your phone and TV, then reconnect by entering the password. As a last resort, rebooting the router often solves the problem of frozen network tables.
Why can’t the LG TV see my phone?
Most often, the devices are on different Wi-Fi networks or client isolation is enabled on the router. Also check if the antivirus on your phone is blocking local connections.
Can you play games on your phone through a TV?
Yes, using Screen Share mode. However, the signal delay over Wi-Fi can be noticeable, so for dynamic games it is better to use an HDMI cable.
Is the sound broadcast to the TV?
Yes, if the connection is successful, the sound automatically switches to the TV's speaker system. If there is no sound, check the volume settings on both devices.
Does the broadcast work without the Internet?
Yes, if the devices are connected to the same router, the Internet is not required. Some technologies, such as Miracast, can work via a direct Wi-Fi Direct connection without a router at all.
How to turn off the broadcast?
On your phone, open the notification panel or the application through which the broadcast was conducted, and click the "Disconnect" or "Stop" button. On the TV, you can simply switch the signal source.