Modern technologies make it possible to transform any LG Smart TV into a full-fledged multimedia center using just your smartphone. Instead of squinting at your gadget's small screen, you can stream photos, videos, or even your device's desktop to a larger panel. One of the most stable and fastest ways to accomplish this is with technology. Wi-Fi DirectIt allows you to create a direct connection between devices without a router.
This method is especially relevant when the home network is overloaded or there is no internet access. You get high data transfer speed and minimal latency, which is critical for watching high-definition video. However, the setup process has its own nuances, which depend on your phone's operating system version and TV model. In this article, we'll cover in detail how to establish a connection, which apps to use, and what to do if the devices can't see each other.
It's worth noting that LG uses its own implementation of the technology, which is often referred to as Screen ShareWhile technically based on the Miracast and Wi-Fi Direct standards, the interface may differ from that of classic Android devices. The correct sequence of steps ensures that audio and video are synchronized correctly. Let's look at what this protocol is and why it's better than standard Bluetooth for video streaming.
What is Wi-Fi Direct and how does it work on LG TVs?
Wi-Fi Direct — is a wireless communication standard that allows devices to connect directly to each other without the need for an access point or router. In the context of televisions LG Smart TV This technology is used to transmit high-bitrate multimedia content. Unlike Bluetooth, which has a limited speed range, Wi-Fi Direct is capable of transmitting 4K video signals without significant compression.
When you activate this feature on your TV, it actually becomes virtual routerYour smartphone detects this network and connects directly. Data is transmitted over a secure channel, ensuring the privacy of your personal information. It's important to understand that at this point, your phone may lose internet access if it doesn't support dual Wi-Fi operation.
⚠️ Attention: When connected to Wi-Fi Direct, background downloads on your phone (such as app updates) may pause or use mobile data unless Wi-Fi is set to be prioritized for local tasks.
Technology MiracastThe system that powers Screen Share on LG uses Wi-Fi Direct to establish a handshake and transmit the video stream. This means you don't need additional cables or complex IP address settings. The system automatically negotiates connection parameters. However, stability directly depends on the strength of the Wi-Fi module in the TV and smartphone.
- 📡 A direct connection provides speeds of up to 250 Mbps, which is sufficient for 4K HDR content.
- 🔒 WPA2 encryption protects transmitted data from being intercepted over the air.
- 📱 Compatible with Android, Windows and some iOS models (via third-party apps).
- 📺 The TV acts as a receiver (Sink), and the phone acts as a source (Source).
Equipment preparation and compatibility testing
Before you begin setting up, you need to make sure your equipment supports the required protocols. Almost all TVs LG Smart TV, released after 2012 and running on NetCast or webOS platforms, have built-in support Screen ShareFor smartphones, the requirements primarily concern the presence of a Wi-Fi module that supports the 802.11n standard or higher.
Make sure your TV's software is up to date. Older firmware versions may contain Wi-Fi module bugs that have been fixed by the manufacturer. You can check this in the settings menu by going to General → About TV → Check for updatesHaving the latest firmware is critical for connection stability.
For Android smartphones, it's important to have at least OS version 4.2, as it introduced native Miracast support. iPhone owners will have to use third-party solutions, as Apple uses its own AirPlay protocol, which isn't directly compatible with Wi-Fi Direct without middleware.
☑️ Checklist before connecting
It's also worth paying attention to airwave congestion. If you're in an apartment building with dozens of neighboring routers, the Wi-Fi Direct channel may experience interference. In such cases, it's recommended to choose a less crowded frequency band if your TV supports it. 5 GHz.
Step-by-step instructions: Activating Screen Share on an LG TV
The first step is to put the TV into connection standby mode. The interface may vary slightly depending on the operating system version. webOSOn most modern LG models you need to press a button Input on the remote control and select the application Screen ShareIn some versions it may be called "Connect to a mobile device".
After launching the app, a waiting window will appear on the screen with the device name and possibly a PIN code. The TV will begin searching for available networks and preparing the Wi-Fi Direct module. Do not close this window until pairing is successful, otherwise you will have to start the process over again.
Path to settings (for older NetCast models):
Smart → Screen Share App → Launch
Path to settings (for webOS 3.0 and above):
Main menu (Home button) → Launcher → Screen Share
In the Screen Share app settings, you can change the device name to make it easier to find in the list of available networks. There's also often a connection lock option, which requires confirmation from the remote control each time a new device attempts to connect to the TV. This is a useful feature. security in public places.
⚠️ Attention: If the "Connection Request" message appears on the TV screen, you must press "Accept" on the remote control within 15-30 seconds, otherwise the connection will be terminated automatically.
Setting up your smartphone and the connection process
Once the TV has entered standby mode, grab your smartphone. For Android devices, the process is as follows: pull down the notification shade and look for a function that may be called Broadcast, Smart View (Samsung), Projection or Wireless monitorThe location of this button depends on the manufacturer's shell (MIUI, OneUI, ColorOS).
Press this button, and your phone will begin scanning for available devices. Your LG TV should appear in the list. Tap it. If a PIN is required, it will be displayed on the TV screen—enter it on your smartphone. The handshake process may take 5 to 20 seconds.
For iPhone users, the situation is more complicated, as there is no native Wi-Fi Direct support for screen mirroring. You'll need to download an app from the App Store, such as TV Cast for LG or similar. In this case, both devices must be on the same Wi-Fi network (router), as the iPhone uses DLAN or AirPlay emulation, not pure Wi-Fi Direct.
- 📲 Android: Settings → Connected devices → Cast.
- 🍏 iOS: Requires a third-party app from the App Store (not a native feature).
- 💻 Windows 10/11: Win + K → Select wireless display.
- 🌐 Chrome Browser: Menu → Cast (works through a router).
Once successfully connected, your smartphone's screen will be mirrored to your TV. The image resolution will automatically adjust to the TV's display. If you're using Android, you can switch between apps, and the image on your TV will adjust accordingly. This is convenient for sharing maps or social media.
What to do if the phone doesn’t see the TV?
Make sure your phone isn't in "Power Saver" mode, which often disables Wi-Fi scanning. Also, try rebooting the Wi-Fi module on both devices. In rare cases, resetting your phone's network settings may help.
Using the official LG TV Plus app
An alternative to the system broadcast function is to use a proprietary application LG TV PlusIt's available for Android and iOS and offers deeper control over your TV. While the app often requires a router for initial setup, it can use a local connection to stream media files.
After installing the application and pairing it with your TV (via the code that appears on the TV screen), go to the section MediaHere you can select photos, videos, or music stored on your phone's memory and send them to playback. Unlike full screen mirroring, this only streams the content, leaving your phone free to use for other tasks.
The advantage of this method is its stability: if you receive a call or message, playback on the TV won't be interrupted. Furthermore, the app allows you to use your smartphone as a remote control, which is convenient when viewing videos from your gallery. The app supports a wider range of file formats than the standard OS tools.
| Function | Screen Share (Miracast) | LG TV Plus App | DLNA (Via router) |
|---|---|---|---|
| Connection type | Wi-Fi Direct | Wi-Fi (local) | Wi-Fi (via router) |
| Screen mirroring | Complete | Media only | Media only |
| Router dependency | No | Desirable | Necessarily |
| Phone battery consumption | High | Average | Short |
Solving common connection problems and errors
Despite the simplicity of the technology, users often encounter problems. One of the most common is audio and video desynchronizationThis is due to a lack of computing power when encoding the video stream in real time. Solution: Close background apps on your phone and move closer to the TV.
The second common issue is a connection drop after a few minutes. This could be caused by the phone's power-saving algorithms, which "kill" the Wi-Fi module when idle. You should add the Screen Share app or the system streaming service to the battery exception list. Also, check if your TV is set to a sleep timer.
⚠️ Attention: Smart TV and mobile OS interfaces are updated regularly. Menu locations and item names may differ from those described in the instructions. Always consult the latest user manual for your specific model on the manufacturer's official website.
If the image is choppy or has low resolution, try adjusting the settings in your phone's settings. Sometimes, forcing the screen refresh rate helps. It's also worth checking that your phone's Wi-Fi module isn't overheating, as it reduces signal strength at high temperatures.
- 🔄 Restart your router, even if you use Wi-Fi Direct (it can affect channels).
- 📶 Make sure your phone hasn't switched to mobile internet (LTE/5G).
- 🔋 Disable power saving mode on your smartphone.
- 📺 Update the Screen Share app on your TV via the LG Content Store.
Why is there no sound when broadcasting video?
Some apps (Netflix, Disney+) block audio output via Miracast due to DRM-protected content. In this case, the only solution is to use the built-in YouTube app on your TV or Casting via Chromecast.
Frequently Asked Questions (FAQ)
Is it possible to play games on my phone via Wi-Fi Direct on my TV?
Yes, it's possible, but the experience depends on input lag. For turn-based strategy or card games, a lag of 100-200 ms isn't critical. However, for fast-paced shooters or racing games, the lag can be noticeable. Use "Game" mode in your TV's picture settings to minimize lag.
Does mobile data use up when connecting via Wi-Fi Direct?
No, as the connection is direct between devices. However, if you start an online video on your phone for broadcasting, your data will be used. If you're simply showing photos from your gallery, no internet connection is required.
Why isn't my LG TV showing up in the list of available devices?
Make sure the Screen Share app is running on your TV and is on the standby screen. Also, check that your device isn't hidden in your phone's privacy settings. Sometimes, turning Wi-Fi on your smartphone off and on helps.
Does LG TV Plus support surround sound?
When streaming via Wi-Fi Direct (Miracast), audio is typically transmitted in stereo or compressed surround (depending on the content and TV settings). For full multichannel audio, it's best to use HDMI ARC or the optical output, connecting your phone via an adapter.
How to disable screen mirroring?
On your phone, tap the "Disable" button in the casting widget or simply turn off Wi-Fi. On your TV, you can press the Return or Exit button on the remote to exit Screen Share mode.