Modern smartphone users are often faced with the need to display images from the small screen of a mobile device onto a large TV display. This is convenient for viewing photos, videos or even presentations with your family. Technology Miracast allows you to implement this task without the use of unnecessary wires and complex network settings. Equipment owners LG can take advantage of the built-in function Screen Share, which is based precisely on this standard for wireless video signal transmission.
The process of synchronizing devices may seem confusing only at first glance. In fact, the algorithm of actions is quite simple and requires minimal equipment preparation. The main condition is the presence of technology support both on the smartphone side and on the TV side. Most modern models Android and TVs LG with an operating system webOS are completely ready for such work out of the box.
In this article we will analyze in detail all the stages of connection, possible nuances of interfaces and ways to solve typical problems. You'll learn how to activate display mode, what settings you need to check before you start, and why the signal sometimes disappears. The instructions are relevant for a wide range of devices released in recent years.
Preparing equipment and checking compatibility
Before attempting to establish a connection, you must make sure that both devices are in working order and support the desired protocol. Technology Miracast (also known as Wi-Fi Direct) does not require a router to transfer data, as it creates a direct connection between gadgets. However, for stable operation, it is recommended that both devices be on the same local network if you plan to use additional online services.
Make sure that your TV LG is equipped with a Wi-Fi module. Models without a wireless adapter will not be able to receive a signal over the air. On smartphones running Android the operating system version must be at least 4.2, although in practice it is better to use more recent versions, starting from Android 6.0 and higher. This guarantees the availability of the necessary drivers and the stability of video compression codecs.
⚠️ Attention: Some budget TV models may have outdated software versions that do not work correctly with new smartphones. Check for firmware updates in the TV menu before starting setup.
It is also worth checking if the “Energy Saving” mode is enabled on the TV, which can turn off wireless modules when idle. To activate the function on TVs LG usually use an application Screen Share. If you don't find it in the list of preinstalled apps, try searching for it in the Smart TV menu or downloading it from the app store LG Content Store.
Before starting setup, make sure that Bluetooth is turned on on both devices, as it is often used for initial discovery and pairing before starting Miracast.
Activating signal reception mode on an LG TV
The first step is to put the TV into connection standby mode. The interface may differ depending on the operating system webOSversion installed on your model. In older versions (before 4.0), the application Screen Share was launched manually from the list of apps. In newer versions, this function is often built into the quick access panel or source menu.
Press the button Input or the house icon on the remote control to bring up the main menu. Find the section with mobile device connections. In some models, this is a separate tile with the inscription “Connect to a mobile device” or a smartphone icon. Select this item to have the TV start searching for available devices within range.
After launching the application, a waiting window will appear on the TV screen with a message that the device is ready to connect. The name of the TV can also be displayed here, which will be visible in the list of available networks on your smartphone. If you see a connection confirmation request with a code, write it down or simply keep the remote control ready to confirm.
- 📺 Find the application
Screen Sharein the TV launcher. - 🔌 Make sure that the Wi-Fi Direct function is active in the network settings.
- 👀 Wait for the message “Ready to connect” to appear on the screen.
- 🔢 Remember the device name for quick search on your phone.
It is important to note that in standby mode, the TV may not respond to remote control commands, except for the exit button. This is normal behavior, since all the resources of the wireless module are aimed at establishing communication with an external signal source. Do not turn off the TV at this moment.
Setting up a wireless display on an Android smartphone
Now we move on to setting up the mobile device. The path to the desired function can vary greatly depending on the smartphone manufacturer and shell version Android. Companies Samsung, Xiaomi, Huawei and others use their own names for the technology Miracast. You need to find in the settings the section responsible for connecting to external displays.
Most often this function is hidden in the “Connections”, “Display” or “Additional functions” sections. There may also be a quick switch in the notification shade. If you cannot find the item you need, use the search in the phone settings by entering the keywords “Broadcast”, “Projection” or “Wireless monitor”.
Below is a table with the names of the functions on popular smartphone brands to make it easier for you to navigate:
| Smartphone brand | Function name in the menu | Location in settings |
|---|---|---|
| Samsung | Smart View | Notification curtain / Connections |
| Xiaomi / Redmi | Cast | Connections and sharing |
| Huawei / Honor | Screen projection | Connections devices |
| Google Pixel | Cast | Connected devices |
| Sony | Screen mirroring | Xperia connections |
After you have activated the search function, the phone will start scanning the air. The name of your TV should appear in the list of available devices LG. Click on it to start pairing. The process may take from a few seconds to a minute depending on the congestion of the wireless channel.
☑️ Check before connecting
Pairing process and start of broadcast
When you try to connect, a pop-up window may appear on the TV screen asking you to allow the connection. This is a security measure to prevent third-party devices from streaming content onto your screen without your knowledge. Use the remote control to select “Accept” or “Allow.”
After confirmation, the smartphone screen should appear on the TV. The image may not appear instantly; there may be a delay of 2-5 seconds. At this time, the system matches the screen resolution and frame rate. If the connection is successful, you will see your phone's interface in full size.
Please note that the devices may exchange encryption keys when connecting for the first time. Next time the connection will be established automatically and much faster. Some phone models allow you to select an operating mode: “Mirroring” (a full copy of the screen) or “Extending the desktop” (using the TV as a second monitor), although the second option is supported less frequently.
⚠️ Attention: During the broadcast, the smartphone screen may remain on, which quickly drains the battery. It is recommended to connect the phone to a charger or turn on power saving mode if this does not affect the quality of video transmission.
Content can now be controlled both from the phone and from the TV remote control (to a limited extent). To exit the broadcast mode, just disable the function on your smartphone or turn off the application Screen Share on your TV. The signal will be interrupted and the devices will return to their original state.
What to do if the connection is lost?
If the connection is constantly interrupted, try forgetting the network on the phone and connecting again. Also check if there are any powerful sources of interference nearby, such as microwave ovens or operating radio transmitters.
Solving typical problems and connection errors
Despite the simplicity of the technology, users often encounter situations where the TV does not see the phone or the connection is unstable. One of the most common reasons is mismatched encryption standards or outdated software. Make sure both devices have the latest available system updates installed.
If the TV appears in the list, but when you try to connect it gives an error, try restarting both devices. This will clear the network settings cache and reset possible freezes of the wireless module. It is also worth checking whether the AP Isolation function is enabled on the router, which prevents devices on the same network from seeing each other, although for Miracast this is not always critical, since a direct channel is used.
Problems with sound delay or picture desynchronization are often solved by changing the resolution settings. Try reducing the video output quality in the broadcast settings on your smartphone, if this option is available. High resolution 4K may be too heavy for older TV models or a weak phone processor.
- 🔄 Hard reset the TV (unplug for 10 seconds).
- 📡 Disable VPN on your smartphone, if it is active, this will block local transmission.
- 🔋 Make sure that the phone is not in strict power saving mode.
- 🛠 Reset the network settings on the TV to factory settings.
In rare cases, the problem lies in hardware incompatibility of chipsets. If all else fails, you can use alternative methods, for example, connecting via an HDMI cable with an MHL or USB-C to HDMI adapter. This will ensure maximum picture quality without delays.
Rebooting the router and TV often solves 90% of problems with detecting devices on the network, even if Wi-Fi Direct technology is used.
Alternative methods for displaying images
If classic Miracast for some reason does not work or the quality does not suit you, there are other options for integrating a smartphone and TV LG. Owners of TVs that support AirPlay 2 (2019 models and newer) can use standard ecosystem tools, although this is more relevant for iPhone owners; some Android applications also support this protocol.
Another popular method is the use of intermediary applications, such as Google Home. If your TV supports the technology Chromecast built-in, you can stream content from supported applications (YouTube, Netflix, etc.) directly without duplicating the entire smartphone screen. This reduces the load on the phone's battery and ensures smoother playback.
For games or tasks that require minimal input lag, wireless methods may not be suitable. In this case, the only correct solution is a wired connection. You will need a special adapter USB-C to HDMIthat connects to the phone's charging connector, and a regular HDMI cable going to the TV.
⚠️ Attention: When using third-party applications from the Play Market to broadcast the screen, the picture quality may be lower, and advertising may be embedded in the video stream. Use only proven utilities with high ratings.
The choice of method depends on your specific tasks. A wireless connection is quite suitable for viewing photos and videos, but for dynamic games or working with text, it is better to choose a cable. The ecosystem LG is quite flexible and allows you to combine different approaches.
When watching videos via Chromecast (within applications), you can minimize the application on your phone or even lock the screen, and playback on the TV will continue, unlike full screen mirroring mode.
Frequently asked questions (FAQ)
Why doesn’t the LG TV see my phone in the list of devices?
Most often the problem is that the function Screen Share on the TV is not running or is in sleep mode. Make sure that the application is open and there is an indication on the screen that it is ready to connect. Also check if airplane mode is turned on on your phone and if the Wi-Fi module is active.
Is it possible to play games on a TV via Miracast without delays?
The technology Miracast has a natural signal delay (from 100 ms and above), which makes it unsuitable for dynamic shooters or racing. For quiet strategies or quizzes, this is acceptable, but for a comfortable game it is better to use a wired HDMI connection.
Is sound transmitted to the TV when connected?
Yes, the Miracast standard transmits both a video stream and an audio track. The sound should automatically switch to the TV speakers. If there is no sound, check the multimedia settings on your phone and the volume level on the TV remote control.
Does connecting your phone to TV affect the speed of the Internet?
When using a direct Wi-Fi Direct connection, the Internet on your phone may temporarily turn off or become unstable because the antenna is busy transmitting video. If you use broadcasting through a router (Chromecast), then the Internet speed may decrease slightly due to the load on the channel.
How to turn off the broadcast if the phone is frozen?
If the phone does not respond to touches, the easiest way is to turn off the application Screen Share on the TV itself using the remote control. This will break the connection on the receiver side, and the phone will stop trying to transmit the signal.