The integration of the Apple ecosystem with webOS devices opens up new multimedia entertainment options for smartphone owners. Instead of looking at photos or videos on a small gadget display, it's much more comfortable to view images on a large, high-resolution screen. Modern models LG Smart TV support AirPlay 2 technology natively, which simplifies the synchronization process to a minimum of steps.
However, despite manufacturers' claims of easy setup, users often encounter issues that prevent a stable connection from being established on the first try. Problems can stem from router settings, firmware versions, or simply mismatched wireless frequency bands. Understanding the principles of a local network Wi-Fi and data transfer protocols will help you avoid common errors and enjoy content without delays.
In this guide, we'll cover all available streaming methods, from built-in system tools to specialized apps. You'll learn how to ensure maximum signal stability and what parameters to check first if your device isn't detecting your TV display.
Network infrastructure and equipment requirements
The foundation of a successful connection is a properly organized home wireless network. For uninterrupted high-definition video streaming, especially in 4K, it's critical that both devices are on the same subnet. This means iPhone And LG TV must be connected to the same router, preferably at 5 GHz, which provides higher throughput.
Using guest networks or range extenders (repeaters) with client isolation may result in devices simply not seeing each other in the list of available receivers. It's also worth making sure that the AP Isolation feature isn't enabled on your router, which prevents data exchange between connected clients within the local network.
⚠️ Note: If your router is distributing two networks with the same name (SSID) for 2.4 GHz and 5 GHz, try temporarily separating them or forcing both devices to connect to the same frequency to avoid routing conflicts.
Below is a table showing the dependence of broadcast quality on the characteristics of network equipment:
| Network parameter | Frequency 2.4 GHz | 5 GHz frequency |
|---|---|---|
| Maximum speed | Up to 150 Mbps | Up to 866 Mbps and higher |
| Video stream stability | Low (jerks possible) | High |
| The influence of interference | High (microwaves, Bluetooth) | Low |
| Recommended resolution | HD (720p/1080p) | 4K HDR |
Checking the software version is another mandatory step. Outdated firmware on your TV may not contain the necessary security certificates to work with newer versions of iOS. A system update often resolves hidden protocol bugs. Bonjour, which is responsible for detecting devices.
Setting up an LG TV to receive a signal
Before attempting to connect your smartphone to the screen, you need to prepare the TV itself. In modern models LG webOS AirPlay support is built-in by default, but can be disabled for privacy or power saving reasons. You'll need the Magic Remote to navigate the settings menu.
Go to the main menu and select a section Settings (gear icon). Next, go to the category General or Connection, where is the point Apple AirPlay and HomeKit. Make sure the switch is in the on position. OnIf this option is not available in the menu, your TV model may not support native Apple technology and will require the use of third-party apps.
In this menu, you can also configure security settings. The system allows you to choose whether to request a code: "Only on first connection," "Every time," or "No code required." For a home network, it's more convenient to choose the first option to avoid entering the code each time.
It's also worth checking the device name, which will appear in the list of available devices on your iPhone. A standard name like "LG OLED55..." can be replaced with something more descriptive, such as "Living Room," to avoid confusion if you have multiple TVs in your home.
Using the built-in AirPlay 2 feature
The most reliable and high-quality way to stream content is to use a native protocol. AirPlay 2This method requires no additional software and ensures minimal image transmission latency. The procedure is extremely simple, but requires careful attention to connection details.
On your iPhone, open the content you want to play: a video in the YouTube app, a photo in your gallery, or even the entire device screen. Look for the AirPlay icon—a rectangle with a triangle at the bottom. In video players, it's usually located in the corner of the playback window, and the "Screen Mirroring" feature is available in the Control Center (swipe down from the upper-right corner).
After clicking the icon, the system will scan the network. Your network should appear in the list. LG Smart TVTap it. If this is your first time using the device, a four-digit code will appear on the TV screen. Enter this code on your smartphone to pair it.
☑️ Check before launching AirPlay
It's important to note that when streaming via AirPlay 2, playback controls (pause, volume, rewind) remain on your smartphone. However, if you use compatible apps, you can also control playback with your TV remote thanks to integration with HomeKit.
⚠️ Please note: When using Mirror in landscape mode on an iPhone, the image on the TV may not stretch to fill the entire screen, but instead appear with black borders. This is normal for content not adapted to the 16:9 format.
Alternative methods via the LG ThinQ app
If native AirPlay is unstable for some reason, or your TV model is an earlier version of webOS, the official app will come to the rescue. LG ThinQIt turns your smartphone into a universal remote control and allows you to stream media files directly.
Download the app from the App Store and start searching for devices. The app will request access to your local network and Bluetooth—allow these. Once the TV is detected, a confirmation code will appear on both devices. Unlike AirPlay, the connection is established at the LG account level, which can sometimes help you navigate complex router settings.
In the app interface, select the "Cast" tab or the screen icon. You can select specific photos, videos, or music from your phone's memory. The advantage of this method is that you can control the mouse cursor on the TV screen directly from your iPhone's touchscreen, making it convenient for navigating the TV's browser.
Why might ThinQ perform better than AirPlay?
The application uses its own data transfer protocol, which is less demanding on the Bonjour protocol version and often ignores some restrictions of guest networks that block standard AirPlay.
It's worth keeping in mind that image quality when using third-party software may be inferior to the native protocol, especially when playing high-bitrate videos. Input lag may also be more noticeable, making this method less suitable for gaming.
Broadcasting via third-party repeater applications
For owners of older models LG Smart TVFor devices that don't have built-in AirPlay support, there are dedicated intermediary apps. These are installed directly on the TV via the LG Content Store and create a virtual receiver that the iPhone can understand.
Popular solutions are TV Assist, AirScreen or Receiver for AirPlayOnce installed on your TV, this app emulates the Apple receiver. On your smartphone, simply run the standard AirPlay search, and a device with the name specified in the app will appear in the list.
This method is great for its versatility, but it has its drawbacks. Since emulation is done in software, it increases the load on the TV's processor. This can lead to the device overheating or sluggish interface while watching videos. Furthermore, free versions of such apps often contain ads.
When choosing an app, pay attention to codec support. Some repeaters don't properly process Dolby Digital audio, resulting in video without audio. In such cases, you'll need to change the audio output format to PCM or AAC in the app settings on your TV.
Diagnosing problems and troubleshooting errors
Even if you follow all the instructions, situations may arise where the connection fails. The most common cause is IP address desynchronization. The router may have assigned new addresses to the devices, causing them to lose contact with each other on the local network. Simply reconnecting to Wi-Fi on your smartphone often solves the problem.
If you can see your TV but the connection drops after a few seconds, check the channel load. Downloading large files on other devices, torrents, or streaming 4K on a second TV can clog the airwaves. In this case, rebooting your router and selecting a less congested channel in its settings will help.
It's also worth paying attention to your firewall and antivirus settings if they're installed on your router or ISP network. They may be blocking ports required for the protocol to work. mDNS, which is responsible for detecting devices.
⚠️ Note: The webOS and iOS interfaces are updated regularly. The location of menu items may change. If you don't find the option described, try searching your TV settings for "AirPlay" or "Connection."
If you experience persistent errors, try resetting your TV's network settings to factory defaults. This will delete all saved Wi-Fi passwords and device lists, but often resolves protocol stack software errors.
Frequently Asked Questions (FAQ)
Why doesn't my iPhone see my LG TV in the AirPlay list?
Most likely, the devices are connected to different networks (for example, one on 2.4 GHz and one on 5 GHz with different names) or client isolation is enabled on the router. Also, check if AirPlay is enabled in the TV settings.
Is it possible to mirror iPhone screen to LG TV without Wi-Fi?
Native AirPlay requires a Wi-Fi network to transmit data. However, some repeater apps support creating a direct Wi-Fi hotspot on the TV itself, which the phone must connect to. However, the phone's internet connection will not work in this mode.
There's a delay in sound when streaming video from an iPhone to a TV. What should I do?
Audio lag is often caused by Wi-Fi congestion or the use of the 2.4 GHz frequency. Try switching both devices to the 5 GHz network. You can also try disabling picture enhancement modes (such as TruMotion) in your TV settings, as they add frame processing delay.
There's only a picture, but no sound. What's wrong?
The issue may be due to audio codec incompatibility. Go to the repeater app settings on your TV (if you're using one) and change the audio format to AAC. If you're using native AirPlay, try restarting both devices.