Modern smartphone owners often need to stream content from their mobile device to a larger screen. For users of the Apple ecosystem and LG TVs, this is a fairly simple solution thanks to wireless data transfer technology. If you want to know, How to connect an iPhone to an LG TV via WiFi, you won't need to buy additional cables or complex adapters. Modern models support standards that allow this to be done natively.
There are several proven ways to accomplish this task, each with its own peculiarities. The main method is to use a built-in function. AirPlay 2, which is available on many new LG TV models. An alternative is the manufacturer's proprietary apps, such as LG TV Plus, which expand management functionality. In both cases, it's critical that both devices are on the same local network.
In this article, we'll cover every setup step in detail, from checking software versions to fine-tuning your router's network settings. You'll learn how to avoid video stream lag and audio desync. We'll also cover the nuances of working with different versions of iOS and webOS to ensure maximum compatibility with your device.
⚠️ Attention: The menu interface on LG TVs may vary slightly depending on the webOS version (4.0, 5.0, 6.0, and later). The layout of settings items sometimes changes after major firmware updates, so please consult the latest user manual for your specific model.
Technical requirements and equipment preparation
Before you begin pairing, you need to make sure your equipment meets the minimum technical requirements. Not all LG TV models support wireless HD video streaming. First, your TV must be equipped with a module. Smart TV and run webOS 4.0 or higher. Older models released before 2018 may require external adapters.
The smartphone must also meet certain criteria. For stable AirPlay 2 functionality, an iPhone 7 or later running iOS 12.3 or later is required. Older devices may not support the encryption protocols required for secure media transfer. Check the software version in the section Settings → General → About.
Connection quality directly depends on the condition of your home WiFi network. For streaming 4K or HDR video, the 5 GHz band is recommended, as it offers higher throughput. The 2.4 GHz band can be used for streaming photos or music, but buffering and stuttering may occur when streaming video.
Checking network infrastructure and software versions
The foundation for a successful connection is proper network configuration. The most important rule: the iPhone and LG TV must be connected to the same WiFi networkIf you have a dual-band router broadcasting two different networks (e.g., "Home_2.4" and "Home_5G"), make sure both devices can see each other. In some cases, client isolation at the router level can prevent device detection.
The second critical aspect is software up-to-dateness. Manufacturers regularly release updates that fix communication protocol errors. On your LG TV, go to the menu Settings (gear) → All settings → Support → Software updateIf a new version is available, install it. Similarly, check for updates on your iPhone via Settings → General → Software Update.
Users often forget to simply reboot their equipment. Network module failures can cause devices to stop seeing each other on the local network. A full reboot of the router (disconnecting it from power for 30 seconds) and the TV helps clear the DNS cache and update IP addresses, which often resolves the issue of devices becoming invisible.
☑️ Preparing for connection
Method 1: Using the built-in AirPlay 2 feature
The most elegant and fastest way to connect an iPhone to an LG TV via WiFi is to use native AirPlay 2 support. This technology is built directly into the operating system of LG TVs, starting with 2018 models and newer. You don't need to install any third-party apps; all functionality is available out of the box.
To activate the function on your TV, find the application in the main menu Apple AirPlay and HomeKit or go to Settings → Connection → AirPlayMake sure the AirPlay switch is set to OnHere you can also set up an access code: you can choose a permanent code, a code for the first time you connect, or disable verification, which is less secure but more convenient for your home network.
On your iPhone, open the content you want to cast (video, photo, or full screen). Tap the icon Screen mirroring (two rectangles) in Control Center. Select your LG TV from the list of available devices. If this is your first time, a 4-digit code will appear on the TV screen. Enter this code on your smartphone. The image from your iPhone will then appear on the big screen.
⚠️ Attention: When using AirPlay 2 in landscape orientation, video may not occupy the entire screen, but may have black margins on the sides if the aspect ratios are not the same. This is normal for content with an aspect ratio other than 16:9.
Method 2: Streaming via the LG TV Plus app
If built-in AirPlay doesn't work for some reason, or your TV is an older Smart TV model, the official app will come to the rescue. LG TV PlusIt's available for download in the App Store for free and provides a stable connection for streaming photos, videos, and music stored on your iPhone.
After installing the app, launch it and follow the on-screen instructions. The program will automatically scan the network and find a compatible LG TV. To confirm pairing, you may be asked to enter the PIN displayed on the TV screen or confirm the connection by pressing "Accept" on the remote control. This ensures protection against unauthorized access.
Unlike AirPlay, which is often used for full-screen mirroring, LG TV Plus is more focused on streaming media content. You can select files from your gallery, stream videos from cloud storage, or even use your smartphone as an advanced TV control panel. However, full iOS interface mirroring may be limited or absent.
Why might the LG TV Plus app not see my TV?
Most often, the problem lies in the router's firewall settings or antivirus software, if installed on the router. Also, check if the "Guest Network" feature is enabled on your WiFi, as it isolates devices from each other.
Comparison of connection methods and their characteristics
Choosing the optimal method depends on your specific needs. AirPlay 2 provides the best picture quality and minimal latency, which is critical for gaming or watching fast-paced scenes. The LG TV Plus app can be useful for organizing slideshows or background music when video stream quality is secondary. Below is a comparison table of key features.
| Characteristic | AirPlay 2 | LG TV Plus | Third-party applications (Cast) |
|---|---|---|---|
| Video quality | High (up to 4K HDR) | Medium/High | Depends on the application |
| Latency | Minimum | Average | High |
| Screen mirroring | Complete | Partial (media only) | Partial |
| Stability | High | High | Low/Medium |
| TV requirements | webOS 4.0+ | Smart TV (any) | DLNA/UPnP support |
When using third-party apps from the App Store, such as various "Cast for LG" alternatives, you may encounter intrusive ads or limitations of the free version. Official methods from Apple and LG are free of these drawbacks and are optimized to work together. It is recommended to use them as a priority.
Solving common connection problems
Even with the correct setup, situations may arise where the iPhone does not detect the LG TV or the connection is constantly interrupted. One of the common causes is the use of VPN On your smartphone. When a VPN is enabled, traffic goes through a remote server, and the local device is simply "lost" to the phone. Disable the VPN before starting a session.
Another problem is a crowded WiFi channel. If you have many devices connected to your network (smart bulbs, laptops, tablets), the bandwidth may not be sufficient for streaming video. Try turning off unnecessary devices or switching your TV to a less crowded channel through your router settings. Changing your DNS servers to faster ones, such as Google (8.8.8.8) or Cloudflare, can also help.
If nothing helps, reset the network settings on your TV. In the menu Settings → All settings → Support → Self-diagnosis → Reset network settings You can clear all saved connection settings. After doing so, re-enter your WiFi password. This will not affect your installed apps, but will reset your network settings to factory defaults.
Optimizing video stream quality
To achieve the best results when viewing movies or photo galleries, it's important to consider not only the connection method but also the display settings. On LG TVs, iPhone mode often automatically activates Picture Mode: Cinema or TechnicolorYou can manually adjust the brightness and contrast through the menu. Image settingsto make the colors look more natural.
Pay attention to the audio format. If the audio coming through the TV when connected via AirPlay is low quality or intermittent, check the audio output settings on your iPhone. Sometimes switching the audio format in the Accessibility settings helps, although this is rare. For home theater systems connected to the TV, make sure the audio output mode is enabled. HDMI ARC/eARC for transmitting multichannel audio.
When mirroring your iPhone for long periods of time, your battery can drain quite quickly. It's recommended to keep your phone charged or use a MagSafe wireless charger during the session, especially if you plan to watch a long movie in high definition.
Why isn't my LG TV showing up in the AirPlay list?
Make sure AirPlay is enabled in your TV settings. Check that your router's firewall isn't blocking the ports required for the Bonjour/mDNS protocol. Also, try temporarily disabling IPv6 in your router settings, as this can sometimes cause conflicts on Apple devices' local networks.
Is it possible to play iPhone games on TV with minimal lag?
You can play games, but latency will always be higher over WiFi than with a wired HDMI connection. AirPlay 2 is perfect for quiet strategy games or trivia games. For fast-paced shooters or racing games, a latency of 100-200 ms can be noticeable. In such cases, a cable is better.
Does sound play on external speakers when an iPhone is connected?
Yes, if a sound system or soundbar is connected to an LG TV via HDMI ARC or optical output, the iPhone's audio will be transmitted to them. In this case, the TV merely acts as a bridge for transmitting the video signal and audio stream.
Do older LG TVs (pre-2018) support AirPlay?
Officially, no. Models prior to 2018 do not have a built-in chip for AirPlay 2. However, you can purchase an Apple TV adapter (any model), connect it to the HDMI port of your old TV, and get full AirPlay functionality. An alternative is to use third-party receiver apps installed directly on the TV, but their stability is not guaranteed.