Modern multimedia capabilities allow you to turn any smartphone into a powerful home theater control center. Connecting a TV LG Smart TV to a mobile device based on Android gives access to watching movies, photo galleries and even online broadcasts on the big screen. This is especially true when the built-in apps on the TV are slow or don't support the desired file formats.
There are several proven methods for syncing devices, from wireless technologies to physical cables. The choice of a specific method depends on your TV model, operating system version and purpose of use. In this article, we will analyze in detail all the available options so that you can choose the most optimal one for your situation.
You should not ignore the possibility of using a wired connection if you require maximum image quality without delays. However, most users prefer wireless protocols for the sake of convenience. Let's look at each method in detail so that you can enjoy content on a big screen without unnecessary complications.
Preparing devices for synchronization
Before you start setting up, you need to make sure that both devices are in working order and ready to exchange data. The basic requirement for most wireless methods is that the smartphone and TV are on the same local network. This means that they must be connected to the same router via Wi-Fi.
Check that your TV LG WebOS has Smart Share or a similar device search option enabled. In modern models, this setting is often active by default, but in older firmware versions, you may need to manually launch the application Screen Share. Also make sure that the wireless module is turned on on your smartphone.
An important step is updating the software. Manufacturers regularly release patches that improve connection stability and add support for new codecs. If you encounter connection problems, first check for updates in the settings menu of both devices.
⚠️ Attention: Some router models have a “Guest Network” function or client isolation. If devices are connected to guest Wi-Fi, they may not “see” each other, even if they are on the same network. Use your main home network.
- 📱 Make sure Wi-Fi and Bluetooth are turned on on your smartphone.
- 📺 Make sure your TV is connected to the same network as your phone.
- 🔄 Update LG TV Plus apps and system software to the latest versions.
Using the built-in Screen Share (Miracast) function
Technology Miracast is a standard for wirelessly transmitting images from a smartphone screen to a TV without using a router (Wi-Fi Direct mode) or via a local network. On LG TVs this function is often called Screen Share. This is the most universal method that works on most Android devices without installing additional software.
To get started, launch the button Input or Smart on the TV remote control and select the "Screen Share" or "Connect to a mobile device" application. A message indicating that the connection is waiting will appear on the screen. At this point, the TV creates an access point or becomes visible for search.
On your smartphone, open the quick settings panel (curtain) and find the "Broadcast", "Smart View" (Samsung), "Projection" or "Wireless Monitor" button. The name may vary depending on the manufacturer's shell. After searching, select your TV LG from the list. If necessary, confirm the connection on the TV remote control by clicking the "Accept" button.
☑️ Screen Share setup checklist
It is worth noting that when using Miracast, the image is broadcast in real time. This means that if you receive a notification or call, it will appear on your TV. To view videos from the gallery, this may not always be convenient, since the phone interface will also be visible to viewers.
Official LG TV Plus application
LG has developed its own application LG TV Pluswhich provides advanced control and broadcast functionality. This solution is ideal for those who want to use a smartphone not only as a screen, but also as a control panel with the ability to enter text and transfer files.
Download the application from Google Play Market and install it on your smartphone. Once launched, the app will automatically scan the network for compatible TVs. Select your device from the list. A confirmation code may appear on the TV screen, which must be entered in the pairing application.
The main advantage of this method is the ability to control the cursor. By tilting your smartphone, you move the cursor across the TV screen, which simplifies menu navigation WebOS. In addition, the application allows you to transfer photo and video files from the gallery directly to the TV player without loading the phone's processor with a full screen broadcast.
What to do if the application does not see the TV?
Make sure that both devices are connected to the same Wi-Fi network (2.4 GHz or 5 GHz). Some Android antiviruses may block local device detection—try disabling protection temporarily. Also check whether the router has a ban on data exchange between clients (AP Isolation).
The functionality of the application is not limited to multimedia. You can use it to quickly access picture and sound settings, as well as install third-party applications from the LG Content Store directly from your smartphone using the virtual keyboard.
Broadcast via Google Home (Chromecast built-in)
Many modern LG TV models are equipped with built-in support for the technology Chromecast. This allows you to stream content directly from source applications such as YouTube, Netflix or the Google Chrome browser, bypassing the system broadcast of the entire screen.
The setup process is as simple as possible: make sure that the application is installed on your smartphone Google Home. Open it and find your TV in the list of available devices. Click "Setup" to link your accounts. After this, a broadcast icon (a rectangle with waves) will appear in supported applications.
The main difference between this method and Miracast is that the TV itself downloads the video stream from the Internet. In this case, the smartphone acts only as a control panel. This allows you to save battery power on your phone and frees it up for other tasks while a movie is playing on the big screen.
| Feature | Miracast (Screen Share) | Chromecast (Google Home) | DLNA |
|---|---|---|---|
| Transfer type | Screen mirroring | Streaming | Transfer files |
| Dependency on phone | High (screen active) | Low (remote control only) | Medium (list management) |
| Video quality | Depends on the Wi-Fi signal | Stable (up to 4K) | Original file |
| Battery consumption | High | Low | Medium |
When using Chromecast, try not to switch applications on your phone abruptly, as in some versions of the OS this may interrupt the stream or change the volume on the playback device.
Wired connection via HDMI and USB
For users for whom connection stability and the absence of image compression are critical, wired connection remains the uncontested leader. Connecting via a cable HDMI requires the presence of a corresponding port on the phone (usually USB Type-C with MHL or SlimPort support) or the use of an adapter.
Connect the smartphone and TV with a cable. The TV will automatically detect the new signal source. All you have to do is select the appropriate input (Input) on the LG remote control. Unlike wireless methods, delays (lags) and compression artifacts are completely eliminated, which makes this method ideal for gaming or watching videos at high bitrates.
An alternative option is connecting via USB. In this mode, the phone is detected by the TV as an external data storage device (flash drive). You will be able to view photos, videos and listen to music through the built-in LG media player, but you will not be able to broadcast the screen or application interface.
⚠️ Attention: Not all USB-C cables support video signal transmission. To work via HDMI, you need a cable that supports USB 3.1 Gen 2 or Thunderbolt. Cheap charging cables will only transmit current, but not the image.
When using the wired method, charging the smartphone may be slower or not at all, since the port is busy transmitting data. It is recommended to have a Power Bank on hand or use an adapter with an additional charging port.
Connection problems and solutions
Even with proper configuration, failures may occur. A common problem is that the TV is not visible in the list of available devices. In this case, try rebooting the router, as the network services cache may have become full. Switching between frequency ranges 2.4 GHz and 5 GHz.
If the image is transmitted, but the sound comes only from the phone, check the audio output settings. The broadcast control panel (with Miracast active) often has a button for selecting an audio output device. Make sure that the TV is selected and not the smartphone speaker.
Delays in cursor control or choppy video usually indicate a weak Wi-Fi signal. Try to move the router closer to the TV or use a wired connection for the TV itself if possible. Interference from microwave ovens and neighboring networks can also affect the quality of transmission.
In 90% of cases, connection problems are solved by simply rebooting the router and both devices (TV and smartphone) at the same time.
Experts recommend that if you have constant problems with your wireless network, consider creating a separate guest network for smart devices or using Wi-Fi repeater to strengthen the signal in the area where the TV is located.
Frequently asked questions (FAQ)
Can I connect my phone to LG without Wi-Fi?
Yes, this is possible in two ways. The first is the use of Wi-Fi Direct technology, which creates a direct connection between devices without a router (implemented in the Screen Share function). The second is a wired connection via an HDMI cable with a corresponding adapter for your smartphone.
Why doesn’t the LG TV find my Android?
Most likely, the devices are on different subnets or client isolation is enabled on the router. Also check if the antivirus on your phone is blocking local detection. Make sure that the TV is running an application to receive the signal (for example, Screen Share).
Will sound be transmitted to the TV when connected?
When using Miracast, Chromecast or HDMI, sound is transmitted automatically. If the sound is coming from your phone, click on the speaker icon in the casting menu and select LG TV as the output device.
Will the phone screen work if I turn it off?
When using Chromecast technology (Google Home), the phone screen can be turned off or used for other tasks - the video will continue to stream on TV. When using Miracast (the screen is duplicated), the image on the TV will go dark or stop if you lock your smartphone.
How to improve picture quality when broadcasting wirelessly?
Use the 5 GHz band for less interference, close applications that consume traffic on your phone, and move the router closer to the TV. For ideal quality without compression artifacts, use an HDMI cable.