Modern LG TVs are no longer just devices for receiving over-the-air channels, but have become full-fledged multimedia centers that require integration with other gadgets. Connecting a smartphone to the TV via Wi-Fi opens up a vast array of capabilities, from simple photo streaming to full webOS control. Wireless connection frees the user from unnecessary wires and allows them to enjoy content on a large screen without delays.
In this article, we'll take a detailed look at all available device synchronization methods, including official apps and third-party solutions. You'll learn how to set them up. Screen Share, use the function Miracast and stream video from your browser. Understanding how a local network works will help you avoid common setup mistakes.
Before moving on to specific instructions, make sure your router is working properly and your TV software is updated to the latest version. Both devices - the smartphone and the LG TV - must be connected to the same Wi-Fi network for successful detection. This is a fundamental requirement of the DLNA and Miracast protocols, and if ignored, it will make it impossible to start a communication session.
Preparing equipment and setting up the network
The first step to successful synchronization is proper organization of the local network. Make sure your router supports the standards 802.11n, 802.11ac or newer, as older protocols may not provide sufficient bandwidth for high-definition video. If you have a dual-band router, it's preferable to use the 5 GHz network to minimize interference and improve data transfer speeds.
On your LG TV, you need to activate visibility mode. To do this, go to the settings menu using the Magic Remote or a standard remote control. Navigate through the menu via the section Settings → Connection → Connect to a mobile deviceHere you will see a list of available services and the current connection status.
Your smartphone also requires some preparation. In your Android or iOS settings, check that Wi-Fi is enabled and that data saving mode isn't activated, which could block the detection of devices on the local network. Sometimes, antivirus software on your phone may detect a connection attempt to the TV as suspicious activity.
⚠️ Note: If your router is configured with AP Isolation, devices will not be able to see each other even when connected to the same network. This feature must be disabled in the router settings.
It is important to note that software interfaces may differ depending on the operating system version. webOSIf you can't find the item you need, please refer to the documentation for your specific model or update your TV's firmware via the menu. General → About TV → Check for updates.
Using the official LG ThinQ app
The most stable and functional way of control is to use the proprietary application. LG ThinQIt's available for Android and iOS platforms and lets you turn your smartphone into an advanced remote control. After installing the app, launch it and sign in to your LG account, if you have one. Basic functionality is available without registration.
The app automatically scans the network for available devices. When your TV appears in the list, tap it to pair it. A connection confirmation prompt may appear on the TV screen, which you'll need to accept using the remote. Afterward, you'll have access to volume controls, channel changes, and app launches.
- 📱 Full control of the Smart TV interface from your smartphone screen
- 🎬 Launch streaming services (Netflix, YouTube) with one tap
- 🔍 Text input via your phone's keyboard to search for content
- 📸 Stream photos and videos from your mobile device's gallery
Function Smart View Within the app, you can cast your smartphone's image to the full TV screen. This is convenient for showing presentations or watching videos that don't support native Chromecast streaming. Image lag in this mode is minimal, provided you have a good Wi-Fi signal.
☑️ Check before connection
It's worth noting that some older LG TV models may not support all the features of the new ThinQ app. In such cases, the manufacturer recommends using the legacy app. LG TV Plus, which can be found in the app store archives or on the official support website.
Screencasting via Miracast and Screen Share
Technology Miracast (implemented by LG as Screen Share) allows you to mirror your smartphone's screen to your TV without using a router, creating a direct Wi-Fi Direct connection. This is especially useful if your internet connection is unstable or unavailable, but you want to share a photo or video file saved on your phone.
To start the process, press the button on the remote control Input or Settings and select the signal source Screen ShareA connection window will appear on the screen, displaying the device's name and possibly a PIN code. On smartphones, this feature may be called "Cast," "Smart View" (Samsung), "Projection" (Xiaomi), or "Screen Mirroring" (iOS via third-party apps).
Find your LG TV in the list of available devices and tap to connect. If prompted, enter the code displayed on the TV screen. Once paired, everything that happens on your phone screen will be displayed on the big screen in real time.
| Parameter | Android (Miracast) | iOS (AirPlay 2) | LG Screen Share |
|---|---|---|---|
| Connection type | Wi-Fi Direct | Local area network | Wi-Fi Direct / Network |
| Picture quality | Up to 1080p/60fps | Up to 4K/60fps | Depends on the model |
| Latency | Low | Minimum | Average |
| Sound transmission | Yes | Yes | Yes |
Using Screen Share may increase your smartphone's battery life because the Wi-Fi module is constantly transmitting data. It is recommended to keep your phone connected to a charger during extended viewing sessions.
What to do if the connection is lost?
If the connection keeps dropping, try resetting the Wi-Fi module on your TV. To do this, unplug the TV for 1 minute, then plug it back in. Also, check to see if the Wi-Fi channel is being overloaded by neighboring routers, and try changing the channel in your router settings to 1, 6, or 11.
Stream content via Google Cast and AirPlay 2
Modern LG TVs running webOS 4.0 and later support the technology Google Cast (Chromecast built-in). This allows you to stream content from YouTube, Netflix, Spotify, and other apps directly to your TV, using your smartphone as a remote control only. Video quality is automatically adjusted based on your internet speed.
Support is available for Apple device owners AirPlay 2This feature has been built into LG TVs since 2019. It not only allows you to stream videos and photos, but also display the entire iPhone or iPad screen on your TV with minimal latency. To activate, make sure you have "Show" enabled in your TV settings. Apple AirPlay support the value is "On".
- 🍏 AirPlay 2 provides integration with the Apple HomeKit ecosystem
- 🎥 Google Cast supports thousands of apps with casting functionality
- 🔊Multroom audio allows you to synchronize sound with other speakers
- 🔒 Secure data transfer via encryption protocols
When using Cast technology, it's important to understand the difference between sharing a link and mirroring your screen. When you tap the Cast icon in the YouTube app, your phone only sends the video link to your TV, and the TV downloads the stream automatically. This frees up your smartphone's processor and saves battery life.
If the cast button doesn't appear in the apps, check that the latest versions of the apps are installed on your smartphone and TV. Sometimes a router restart is required to update the multicast routing tables used to discover devices.
File management via DLNA and SMB
For viewing media library stored on smartphone or computer without constantly broadcasting the screen, the technology is ideal DLNALG TVs have a built-in media player that can access DLNA servers on the local network. A server app, such as BubbleUPnP or VLC for Android, must be installed on your smartphone.
After starting the server on your phone and selecting folders to share, go to the menu on your TV All Inputs → Connected Devices or launch the application Photo, Video or Music from the webOS main panel. You'll see your smartphone in the list of available sources.
An alternative and often faster way is to use the protocol SMBTo do this, create a shared folder on your smartphone or use a file manager that supports SMB servers. The TV will connect to this folder as a network drive, allowing you to play large 4K HDR files without the buffering typical of DLNA.
⚠️ Note: SMB version 1.0 is considered insecure and may be disabled by default in newer versions of webOS. It is recommended to use SMB v2 or v3 for compatibility and security.
When playing high-bitrate files (such as 4K Remux) over Wi-Fi, lag may occur if the signal is unstable. In such cases, it's preferable to use a wired connection from the TV to the router via a LAN cable, while keeping the smartphone connected via Wi-Fi.
Troubleshooting and diagnostics
Despite the ease of setup, users often encounter situations where the TV doesn't detect the phone or the connection constantly drops. One of the most common causes is the use of a guest Wi-Fi network. Guest networks isolate devices from each other for security purposes, making the TV impossible to detect.
Another problem lies in the antivirus or firewall settings on your smartphone. They may be blocking incoming and outgoing connections from unknown devices on the local network. Try temporarily disabling the protection or adding the TV to the exceptions list.
- 🔄 Rebooting the router and both devices often solves the IP conflict problem
- 📶 If your Wi-Fi signal is weak, reduce the distance between your router and your TV.
- 🛡️ Check your firewall settings for local traffic blocking
- 📲 Make sure that "Tethering" or "Tethering" mode is not enabled on your phone.
If the issue is audio and video desync when screencasting, try reducing the image quality in the screencast settings on your smartphone. Changing the screen refresh rate in Android's developer settings may also help.
In rare cases, the problem may be due to an overflowing app cache on the TV. Clear the Screen Share or LG ThinQ app cache using the menu. Settings → Support → Device diagnostics → Storage can restore the correct operation of functions.
Additional features and integration
Connecting your phone to your LG TV unlocks advanced smart home features. Using the ThinQ app, you can create scenes where turning on the TV automatically dims the lights in the room if you have compatible smart bulbs. This turns movie watching into a complete cinematic experience.
The function is also available Magic Mobile Connection, which allows you to share your mobile device's screen content with your TV with a simple tap (for NFC-enabled devices). This eliminates the need to search through device lists and enter passwords each time.
For gamers, the function is important Game Dashboard, which can broadcast game statistics or chat to a second smartphone screen while the game is playing on a TV. This requires installing the appropriate plugin and having a compatible game.
⚠️ Note: Interfaces and feature names may change with webOS software updates. If you don't see the option described, check the "New Features" section in your TV settings.
Integration with Google Assistant and Amazon Alexa allows you to control content playback on your TV with your voice via your smartphone. Just say, "Hey Google, pause the TV," and the command will be executed instantly.
Why doesn't my phone see my LG TV in the list of devices?
The most common cause is that the devices are connected to different frequency bands (2.4 GHz and 5 GHz) and the router's Smart Connect feature, which combines them into a single network, isn't enabled. Also, check if your phone's antivirus software is blocking local detection.
Is it possible to connect a phone to a TV without Wi-Fi?
Yes, Wi-Fi Direct (Screen Share) technology allows devices to connect directly, bypassing the router. However, apps like YouTube or Netflix still require internet access, so a complete lack of Wi-Fi infrastructure will limit functionality.
How to improve picture quality when broadcasting from a phone?
To improve quality, make sure you're using a 5 GHz network, disable unnecessary image enhancement effects (noise reduction, smoothing) on your TV, and close background apps on your smartphone that consume bandwidth.
Is it safe to connect my personal phone to public Wi-Fi to control my TV?
Using public networks to manage personal devices carries risks. On such networks, other users could theoretically gain access to your device. It is recommended to use only trusted home networks or Wi-Fi Direct.