Modern smart TVs LG TVs have become powerful multimedia centers, but mobile device screens often remain the most convenient source of content. Users regularly need to display content from their phone to their LG TV via Wi-Fi: whether it's browsing family photo albums, showing work presentations, or playing demanding games on a large display without lag. A wireless connection completely eliminates the need to hunt for HDMI cables and run them across the room, ensuring a clean and aesthetically pleasing environment.
Unlike wired connections, Wi-Fi Direct And streaming technologies allow for instant image scaling. However, despite its apparent simplicity, the setup process may involve technical nuances depending on your device's operating system version and TV model. Transmission protocols Data may vary: Android devices often use Miracast, while the Apple ecosystem relies on AirPlay.
In this guide, we'll cover all the available device synchronization methods in detail. You'll learn how to configure the system's built-in features, which third-party apps are worth installing to expand functionality, and what to do if your devices can't see each other on the local network. It's important to understand that connection stability directly depends on the router's signal quality and the firmware version of your router. LG Smart TV.
Technical requirements and equipment preparation
Before you begin setting up, you need to make sure your equipment supports the required technologies. Most modern LG TVs equipped with the platform webOS, have built-in Wi-Fi Direct modules and support the Miracast standard. However, older models released before 2013-2014 may require an external adapter or the use of DLNA servers, as native screen streaming support may not have been available.
A critical requirement is that both devices are on the same local network. The router should operate in the 2.4 GHz band or, which is preferable for transmitting high-definition video, in the 1.5 GHz band. 5 GHzThe 5 GHz frequency provides higher throughput, minimizing latency and compression artifacts when broadcasting 4K video streams.
⚠️ Important: If your router broadcasts two different networks (e.g., "Home_2.4" and "Home_5G"), make sure both your phone and TV are connected to the same network. In some router settings, client isolation can prevent devices from discovering each other, even if they are connected to the same access point.
It's also worth checking the operating system version on your smartphone. Android versions 8.0 and above are considered current, although the basic "Cast" feature is also present in older builds. iPhone owners should ensure their TV supports it. Apple AirPlay 2 (2019 models and newer) or use third-party emulator apps for older LG models.
Using the built-in Screen Share (Miracast) feature
The most common method, which does not require installation of additional software, is based on technology MiracastIn the LG ecosystem, this feature is often called Screen Share or simply Cast. It allows you to mirror your smartphone's screen to your TV in real time, transmitting video and audio.
To get started, you need to activate signal reception mode on your TV. Find the app in the webOS menu. Screen Share or go to the section Settings → Connection → Connection menuHere, select the "Mobile Device Casting" connection type. After this, the TV will go into standby mode and become visible for search.
On an Android smartphone, the steps may vary slightly depending on the manufacturer's operating system (Samsung One UI, Xiaomi MIUI, stock Android). Typically, the process is as follows: pull down the notification shade, find the button Smart View, Broadcast or CastAfter scanning the network, the name of your LG TV will appear in the list of available devices.
☑️ Check Screen Share Readiness
After selecting a device, a connection confirmation request may appear on the TV screen. You must agree to the connection using the remote control. Magic RemoteIt's worth noting that when using Miracast, the phone's screen doesn't turn off, which can lead to increased battery consumption. Furthermore, if you minimize the app on your phone, the image on the TV will also change or the streaming will be interrupted.
Stream content through the LG TV Plus app
For more advanced control and stable connection, LG has developed an official app LG TV Plus (formerly known as LG Remote). This software is available for iOS and Android platforms and turns your smartphone into a universal remote control with advanced functionality.
The main advantage of this method is the ability to not only mirror the screen, but also transfer media files from the phone's memory to the TV for playback. This reduces the load on the smartphone's processor and allows the phone to be used for other tasks while viewing photos or videos. The app supports the transfer of images, videos, and even music.
The setup process is intuitive: after installing the app on your phone and confirming pairing on the TV screen (a PIN code will appear), you gain access to your media gallery. Once you've selected the photo or video you want, simply press the button. Cast or the TV icon. The file will open on the big screen, and playback controls (pause, rewind) will remain available on your smartphone.
Why might the app not find the TV?
If the LG TV Plus app doesn't detect your TV, check your router's firewall settings. Sometimes antivirus software on your phone or Windows security settings (if you're using your PC as a media server) can block ports needed to detect devices on the local network. Try temporarily disabling them to test.
An important feature is format support. While built-in tools may not support specific codecs, the app can often stream in a format compatible with the TV, performing on-the-fly transcoding. This is especially important for iPhone owners, whose HEIC file system may not be fully compatible with some TV models without conversion.
Connecting iPhone and iPad via AirPlay 2
Apple device owners will appreciate the protocol's native support. AirPlay 2 In modern LG TVs, this technology, built directly into the webOS platform (starting with version 4.0 and above, 2018-2019 models and newer), allows for image display without installing any additional apps.
To start broadcasting, simply open the Control Center on your iPhone (swipe down from the upper right corner or from the bottom up on older models) and tap the icon Screen mirroring (two rectangles). Select your LG TV from the list of devices. If this is your first connection, a four-digit code will appear on the TV screen. Enter this code on your smartphone.
AirPlay 2 delivers high-quality video and minimal latency, making it ideal not only for photos but also for gaming. Unlike Miracast, it uses more efficient video compression and supports multi-channel audio. Furthermore, the system allows you to stream videos from apps (YouTube, Netflix) directly, using your phone only as a remote control, saving battery life.
| Characteristic | Miracast (Android) | AirPlay 2 (Apple) | DLNA (All) |
|---|---|---|---|
| Transmission type | Screen mirroring | Dubbing and streaming video | Media files only |
| Latency | Medium/High | Low | Absent |
| Sound | Transmitted with video | Separate channel/With video | Audio/Video only |
| Work in the background | No (screen active) | Partially | Yes |
Please note that AirPlay 2 requires a stable Wi-Fi network for proper operation. If the router is located far from the TV or phone, connection drops or image quality may be reduced. In such cases, it is recommended to move the devices closer to the access point or use a Wi-Fi repeater.
Alternative methods and third-party applications
If the built-in tools don't work, or your TV is an older model without Smart TV, third-party solutions can help. Aggregator apps such as Cast to TV, Web Video Caster or AllCast, are capable of streaming content to virtually any screen that has a browser or DLNA support.
They work by creating an intermediary. The phone sends a link to a video file or the data stream itself to an app installed on the TV (or built into it), which then plays the content. This relieves the load on the smartphone's processor. For example, when watching an online movie, the phone simply sends the "open link" command, and the TV downloads the video stream itself.
⚠️ Please note: When using free versions of third-party apps, be prepared for advertising integrations. Additionally, some apps may require access to your local network and files, which, from an information security perspective, requires careful consideration when choosing software.
For users who want to display a computer screen or specific applications that do not support Cast, there are solutions based on ChromecastIf your LG TV doesn't have a built-in Chromecast, you can purchase an external dongle adapter that plugs into the HDMI port. This is a universal solution that works equally well on both Android and iOS.
Diagnosing problems and troubleshooting errors
Even with proper setup, users may encounter issues: the TV doesn't detect the phone, the image flickers, or there's no sound. The first step should always be to reboot the Wi-Fi modules. Turn the wireless network off and on in the router settings, and reboot the TV by completely disconnecting it from the power source for 10-15 seconds.
Outdated software versions are a common cause of problems. Check for updates for your TV in the section Settings → About → Check for updatesLikewise, make sure your smartphone's operating system and apps are updated to the latest versions. Manufacturers frequently release patches to fix protocol compatibility issues.
If the problem is audio and video desync, try lowering the stream quality in the app settings or switching your router to a less congested channel. In a crowded environment (with many neighboring networks), data packets may be lost, causing artifacts.
In rare cases, you may need to reset your TV's network settings to factory defaults. This will delete all saved Wi-Fi passwords and connection settings, but it often helps resolve software errors caused by accumulated caches that prevent Wi-Fi Direct from working properly.
Comparison of methods and final recommendations
The connection method you choose depends on your specific needs. If you need to share photos with friends or a presentation with colleagues, the built-in Screen Share will be the fastest solution. For watching high-quality movies, it's best to use media player apps with DLNA support or native AirPlay, as they provide better video decoding.
Gamers should pay attention to input lag. In this regard, a wired connection via an HDMI adapter (USB-C to HDMI) will always outperform wireless technologies. However, if portability and wireless freedom are important, using the 5 GHz band and Miracast/AirPlay 2 technology provides acceptable results for casual gaming.
Don't forget about security. When connecting to public Wi-Fi networks (in hotels or offices), screen sharing features may be blocked by the network administrator or pose a risk of data leakage. In such circumstances, using a personal mobile hotspot to connect your TV and phone is a safer, albeit more expensive, alternative.
Why doesn't my LG TV detect my phone when Wi-Fi is on?
Most often, the problem is that the devices are on different networks (for example, one on a guest network and the other on the main network) or the "Client Isolation" feature is enabled on the router. Also, check whether your phone's antivirus software is blocking local device detection.
Is it possible to display a screen on a TV without the Internet?
Yes, if Wi-Fi Direct technology is used. In this case, devices connect directly to each other, without a router or internet access. However, some apps (such as online movie theaters) still require internet access.
How to improve picture quality during broadcasting?
Make sure your router supports the 802.11ac (Wi-Fi 5) or ax (Wi-Fi 6) standard and operates at a 5 GHz frequency. Place the TV and router within direct line of sight, avoiding obstructions such as metal structures or microwave ovens.
Does my old LG Smart TV support casting?
Models prior to 2013 may not have built-in Miracast or AirPlay support. For these models, it's recommended to use external set-top boxes (Chromecast, Apple TV, Android Box) or connect your phone via an HDMI cable with the appropriate adapter.
Does the operator charge for transmitting images to TV?
No, data transfer within your home Wi-Fi network does not consume mobile data. However, if you watch online videos, your data is used to download the video from the server, not to stream it to your TV.