Modern LG TVs based on the platform webOS, offer a wide range of multimedia interaction options, and one of the most popular features is wireless smartphone screen mirroring. This technology allows you to stream the contents of your mobile device's display—be it photos from your gallery, YouTube videos, or even a game screen—to a large TV without the need for unnecessary wires. The synchronization process is based on standards. Miracast And AirPlay 2, which are built directly into the TV's operating system, making it possible to create a connection within the same local network.
For successful streaming, it's critical that both devices are in the same information space, meaning they're connected to the same router. Unlike wired methods like HDMI cables, a Wi-Fi connection offers freedom of movement and eliminates the clutter of cables, though it requires a stable signal to deliver a high-quality video stream without lag. Modern LG models support high bandwidth, allowing you to stream content in 4K resolution, if your router and smartphone support it.
In this article, we will examine in detail the connection algorithms for various operating systems, including Android and iOS, and also consider the nuances of the application's operation. LG TV Plus and built-in system functions. You'll learn how to troubleshoot common device detection issues and optimize your router settings to minimize lag. Understanding how data transfer protocols work will help you quickly set up your system and enjoy content on the big screen.
Technical requirements and equipment preparation
Before setting up, you need to make sure your equipment meets the minimum technical requirements for Screen Share to work properly. The main requirement is that your TV has a Wi-Fi module and supports the technology. DLNA or MiracastThis applies to all LG Smart TV models released after 2014. If your router only operates in the 2.4 GHz band, streaming quality may be unstable, especially with high-resolution video, so it is preferable to use dual-band routers with 5 GHz support.
The second important aspect is software: the TV firmware and smartphone operating system must be updated to the latest available versions. Manufacturers regularly release patches that fix vulnerabilities in security protocols and improve compatibility between different device brands. You can check the software version on your LG TV by going to the menu. Settings → All settings → General → About TV and selecting the option to check for updates.
It's also worth paying attention to your router's power-saving settings, as some models automatically turn off less active devices or limit their bandwidth at night. For media content, this can be a critical factor, causing connection drops or buffering. Make sure this function is enabled. UPnP (Universal Plug and Play) is enabled in your router's settings because it allows devices to automatically discover each other on the network without manually configuring IP addresses.
⚠️ Important: If your router is configured for "Client Isolation" mode, devices will not be able to find each other even if they are on the same network. Make sure this feature is disabled in the wireless module's security settings.
Connecting Android smartphones
The process of screen mirroring on Android smartphones may vary slightly depending on the device manufacturer and operating system version, but the basic principle remains the same. In most cases, the technology used is Miracast, which allows you to transmit a video stream in real time. On LG TVs, this feature is often called Screen Share Or simply stream via the wireless display's built-in receiver. To get started, open the notification shade on your smartphone and find the "Cast," "Smart View" (on Samsung), or "Screen Projection" button.
Once you activate the search function on your phone, it will begin scanning for available devices within range. When your LG TV appears in the list (usually displayed as a TV model, e.g., LG OLED55C9), you need to press it to initiate the connection. A connection confirmation request may appear on the TV screen, which you must accept using the remote control to allow image transmission.
In some cases, especially on Xiaomi or Huawei devices, you may need to use proprietary utilities such as Mi Drop or specialized projection modes. If you can't find your TV using standard tools, you can use the app Google Home, which allows you to stream your screen via Chromecast, which is built into many modern LG models.
☑️ Android connection check
It's worth noting that when mirroring your screen, your smartphone may heat up faster than usual, as the processor and Wi-Fi module are under increased load. We recommend removing any protective case that interferes with heat dissipation and closing background apps that aren't involved in mirroring to free up RAM.
Stream from iPhone and iPad (AirPlay 2)
Owners of Apple devices can take advantage of native technology AirPlay 2, which is integrated into LG TVs starting with 2019 models and newer, and is also available on some earlier models via a software update. This solution provides the highest quality image and sound transmission with minimal latency, making it ideal for watching videos and sharing presentations. To start mirroring, simply open Control Center on your iPhone (swipe down from the upper-right corner or swipe up on older models) and tap the "Screen Mirroring" icon, represented by two rectangles.
In the list of devices that appears, select your LG TV. If this is your first connection, a four-digit code may appear on the TV screen. Enter this code on your iPhone for verification. Once the devices are successfully paired, your smartphone's screen will be mirrored to the TV, allowing you to control content directly from your phone. Importantly, AirPlay 2 allows you to use your phone for other tasks without interrupting video playback, if the app supports it.
If your LG TV does not support AirPlay 2 natively (models before 2018 without an update), you can use third-party apps such as Replica or TV Cast for LG, which emulate an AirPlay receiver. However, such methods often require installing an additional app from the store on the TV itself. LG Content Store and may introduce additional delay into the transmission of the video stream.
Why might AirPlay not work?
AirPlay 2 requires Bonjour support. If your router blocks multicast traffic or doesn't support IPv6, device discovery may be difficult. Try rebooting your router or temporarily disabling MAC address filtering.
AirPlay typically delivers higher image quality than Miracast, thanks to more efficient video compression algorithms. However, stable 4K content streaming via AirPlay requires a very strong Wi-Fi signal, so the distance between the router and TV shouldn't be too great.
Using the LG TV Plus app
Official app LG TV Plus (formerly known as LG Remote) is a universal tool for controlling your TV and streaming media content. It is available for download in Google Play, and in App StoreAfter installing and launching the app, it will automatically scan the network and offer to connect to your TV. This solution is especially convenient if the built-in features of your smartphone's operating system are not working correctly or require complex setup.
The app features a separate "Media Link" or "Gallery" section, which allows you to select photos or videos saved on your phone and send them to your TV. Unlike full screen mirroring, only the file itself is transmitted, reducing the load on the smartphone's processor and saving battery life. The app also supports the "Screen Casting" feature, which works similarly to the Android or iOS system settings.
One of the advantages of using proprietary software is the ability to use your smartphone as a touchpad to control the cursor on the TV screen (the Magic Mobile Touch feature). This makes navigating the Smart TV menu more convenient, especially when entering text to search for movies or browser queries. The app also allows you to launch streaming services like Netflix or YouTube directly from your phone by sending a launch command to the TV.
When you first launch the LG TV Plus app, you may be asked to enter the PIN displayed on your TV screen to confirm control rights. This is a security measure to prevent unauthorized access to your TV if someone is on the same Wi-Fi network, such as in a cafe or office.
Comparison of connection methods and their characteristics
Choosing the optimal connection method depends on your specific needs, smartphone model, and image quality requirements. Each method has its own advantages and disadvantages, which should be considered when setting up a multimedia system. Below is a comparison table of the key features of the various streaming protocols supported by LG TVs.
| Parameter | Miracast / Screen Share | AirPlay 2 | LG TV Plus App | Google Cast |
|---|---|---|---|---|
| Platform | Android, Windows | iOS, macOS | Android, iOS | Android, iOS, Chrome |
| Quality | Up to 1080p/4K (depending) | High (up to 4K HDR) | Depends on the file | High (adaptive) |
| Delay | Average | Low | Minimum (for photos) | Low |
| Stability | Average | High | High | High |
Protocol Miracast Good for quickly displaying static images or documents, but can lag during dynamic scenes in games. AirPlay 2 Traditionally considered the benchmark for the Apple ecosystem, it delivers smooth picture quality and excellent sound. Aggregator apps like LG TV Plus offer a unique versatility, allowing you to mix and match content from different sources.
If you're playing cloud services or fast-paced shooters, input lag can become noticeable over a wireless connection. In such cases, even the fastest Wi-Fi 6 can lose to a direct wired connection, though for casual games and strategy games, the difference will be virtually imperceptible. For watching movies, the difference between connection methods is minimal, as buffering smooths out micro-stutters.
Troubleshooting and common errors
Despite the technology's refinement, users may encounter situations where the TV doesn't detect the phone or the connection constantly drops. The most common cause is network inconsistency: make sure the phone hasn't switched to 4G/5G mobile data, and the TV isn't connected to a guest network with limited access. Restarting both devices can also help: unplug the TV for 10 seconds and restart the smartphone to clear the network service cache.
If the image is streaming but there's no sound, check the audio output settings on your smartphone. Sometimes, sound continues to play through the phone's speaker while the video is streaming to the TV. In the Bluetooth and Connections settings, select "LG TV" or a similar audio output device. Some Android models require screen recording permission for the app streaming.
If the picture is present but choppy or low-resolution, try moving the router closer to the TV or clearing the Wi-Fi channel of interference. Using the 5 GHz band significantly reduces interference from neighboring networks and household appliances like microwaves. Also, close any heavy apps on your phone that may be consuming data in the background.
⚠️ Warning: Antivirus programs and firewalls on your smartphone may block local network connections. If you experience persistent issues, try temporarily disabling network protection in your antivirus's security settings.
The issue of audio and video desynchronization deserves special attention. This is often resolved by resetting the network settings on the TV (Settings → General → Network → Reset network settings). After the reset, you will need to re-enter the Wi-Fi password, but this eliminates accumulated errors in the network stack webOS.
Frequently Asked Questions (FAQ)
Is it possible to connect a phone to an LG TV without Wi-Fi?
Yes, this is possible with a cable. For Android and modern iPhones (series 15), a USB-C to HDMI adapter is used. Older iPhones require a Lightning to Digital AV adapter. In this case, the TV functions as a regular monitor, and Wi-Fi is not required. However, the Smart TV feature (apps within the TV) will not work; only streaming from the phone will work.
Why is there a black background instead of video when mirroring a screen?
This is due to DRM (Digital Rights Management) protection. Many streaming services (Netflix, Kinopoisk, Disney+) block screen recording to prevent piracy. In such cases, you should use the "Cast" button within the video app itself, rather than mirroring your entire smartphone screen.
Does screen mirroring affect my phone's battery life?
Yes, the impact is significant. The Wi-Fi module operates in constant active data transmission mode, and the processor encodes the video stream. The battery can drain after 1.5–2 hours of active streaming. It is recommended to keep the phone charged while watching long films.
Do all LG models support wireless connectivity?
Almost all LG Smart TVs released after 2013-2014 support Miracast technology. AirPlay 2 is available on 2019 and newer models, as well as some updated 2018 models. A detailed list of supported features can be found in the manual for your specific model.
How to improve the quality of a picture if it is blurry?
Blurry images are often caused by automatic scaling. On your LG remote, press the "P. Size" or "Aspect Ratio" button and select "Just Scan" or "16:9 Original" to remove the stretching. Also, check if your phone's data saving mode is enabled, as this can reduce stream quality.