Streaming content from your iPhone to an LG TV removes cables and delivers vivid detail on a larger screen, whether you are watching movies, sharing photos, or presenting slides. This guide walks through what to expect and how to configure your setup for a reliable, high quality connection.
Modern LG TVs support multiple casting methods, and understanding device compatibility, network settings, and app requirements helps you avoid common delays or connection failures.
| Device | Supported Casting Method | Network Requirement | Typical Latency |
|---|---|---|---|
| iPhone 12 and later | AirPlay 2 | Same 5 GHz Wi‑Fi preferred | Low (near real time) |
| iPhone 11 and earlier | AirPlay with TV models or adapters | Same Wi‑Fi network | Low to moderate |
| LG TV 2020 models and newer | Native AirPlay 2 | Wired Ethernet recommended | Low |
| Older LG TV models | Miracast via Screen Share | 5 GHz Wi‑Fi for best performance | Moderate |
Preparing your iPhone and LG TV for casting
Successful casting starts with proper device preparation, including updates, network alignment, and input source selection.
Update software and apps
Update your iPhone to the latest iOS version and ensure any LG TV firmware or channel apps are refreshed through Settings or the LG content store.
Confirm network alignment
Place both devices on the same Wi‑Fi network, preferably a 5 GHz SSID, to maximize bandwidth and minimize interference from other devices.
How to cast from iPhone to LG TV using AirPlay 2
AirPlay 2 is the most streamlined method on supported LG TVs, offering secure authentication and multiroom audio options.
Enable AirPlay on the TV
In the LG webOS Settings, navigate to General > External Device Manager and enable AirPlay, confirming the code displayed on screen.
Initiate casting from Control Center
Swipe down from the top right of your iPhone, tap Screen Mirroring, choose your LG TV, and enter the code if prompted.
Manage audio output and latency
After casting, select TV speakers from Control Center to keep audio synchronized and avoid echo or delayed lip sync issues.
Using Screen Share and Miracast on older LG models
If your LG TV does not support AirPlay, you can rely on Screen Share or third‑party adapters that implement Miracast for wireless casting.
Activate Screen Share source
Go to the TV Input menu, select Screen Share, and confirm the PIN or pairing process on the iPhone when it appears.
Optimize Wi‑Fi settings for casting
Switch the router to a less congested channel and avoid band steering, which can cause the iPhone and TV to drift between 2.4 GHz and 5 GHz networks.
Troubleshooting common casting problems
Even with correct settings, interruptions can occur due to router placement, device sleep behavior, or app restrictions.
Address frequent disconnects
Move the router closer to both devices, disable power saving on the iPhone, and disable temporary firewall rules that may block AirTalk traffic.
Resolve lag or poor video quality
Lower the iPhone output by avoiding unnecessary background apps, switch the TV to the correct HDMI input with high bandwidth, and reduce Wi‑Fi congestion from other devices.
FAQ
Reader questions
Why does casting stop when the iPhone screen locks?
Enable Background App Refresh for the casting session and prevent the display from sleeping in Settings so the stream continues uninterrupted.
Can I cast from an iPhone to an LG TV across different Wi‑Fi networks?
Use a router that supports client bridge or a dedicated AirPlay receiver on the same subnet, because standard AirPlay 2 requires both devices on the same local network.
Will casting drain my iPhone battery quickly?
Screen Mirroring and AirPlay encoding are resource intensive; lower brightness, close unused apps, and keep the iPhone plugged in during extended sessions.
Do I need any extra cables or adapters for wired casting?
For a stable wired link, use an Apple Digital AV Adapter with an HDMI cable connected to an available HDMI port on the LG TV.