Wireless screen display iPhone on the big screen LG Smart TV opens up new possibilities for viewing photos, videos, games, and even presentations. However, many users encounter difficulties the first time they try to sync—the TV doesn't recognize the phone, there are image delays, or the sound disappears. The most common cause is incorrect network settings, outdated firmware or disabled data transfer functions.
In this article we will look at all current connection methods — from standard AirPlay to alternative applications, and we'll also provide a troubleshooting checklist. We'll pay special attention to the nuances of working with these models. LG OLED And NanoCell, where the algorithm may differ from budget series. If you've already tried connecting and it didn't work, don't rush to blame the technology: in 80% of cases, the problem can be resolved by adjusting one or two parameters.
First, make sure that your LG Smart TV supports wireless broadcasting. Most models with webOS 4.0 and later (released after 2018) have built-in support AirPlay 2 And MiracastYou can check the OS version in the menu. Settings → General Information → TV InformationIf your TV is older, you'll need third-party apps, which we'll discuss in the relevant section.
1. Connect via AirPlay (the most reliable method)
AirPlay 2 - this is the protocol from Apple, which allows you to stream content from iPhone to compatible devices, including LG Smart TVThe main advantage of the method is minimal delays (up to 2 seconds) and sound supportDolby AtmosHowever, for it to work, both devices must be connected to one Wi-Fi network (5GHz recommended for stability).
To activate the broadcast:
- On your TV, go to
Settings → All Settings → General → Apple AirPlay and HomeKit. - Turn on the slider AirPlay and set the access mode (recommended: “All on the same network”).
- On iPhone swipe down from the top right corner to open Control center.
- Click "Screen mirroring" (or "Screen Mirroring") and select your LG TV from the list.
If your TV does not appear in the list of devices:
- 🔄 Reboot your router — sometimes the DHCP server assigns IP addresses incorrectly.
- 📱 Update iOS — Older versions (below 14.5) may have compatibility issues.
- 🛠️ Reset network settings on TV:
Settings → Network → Reset network settings.
Both devices are connected to the same Wi-Fi network (2.4 GHz or 5 GHz) | AirPlay is enabled in the TV settings | iPhone is updated to the latest version of iOS | The router does not block multicast traffic (check your firewall settings) -->
2. Using Screen Mirroring (Miracast)
If your LG Smart TV does not support AirPlay (for example, models before 2018), the alternative will be technology Miracast, built in iOS under the name Screen MirroringThis method works without additional applications, but can introduce a delay of up to 5 seconds and does not support sound in some cases.
Connection algorithm:
- Activate on TV Screen Share (path:
Settings → Network → Screen Share (Miracast)). - On iPhone open Control center and select "Screen mirroring".
- Find yours in the list LG TV (may be displayed as "LG_XXXX").
- Confirm the connection on your TV if prompted.
Important nuances:
- 📶 Miracast requires Wi-Fi Direct. — the TV creates its own network to which it connects iPhoneThis means that the internet on your phone will not work during the broadcast.
- 🔊 Sound may not always be transmitted - If there is an image but no sound, try turning it on manually through
Settings → Sound → Sound Output (HDMI ARC). - 🔄 When the connection is broken Reconnecting may require restarting the TV.
Why is Miracast slower than AirPlay?
Miracast technology uses real-time video compression on the phone, while AirPlay is optimized for Apple devices and uses hardware acceleration. Furthermore, Miracast doesn't prioritize traffic, which can lead to lag on weak Wi-Fi signals.
⚠️ Attention: On some models LG (for example, series UK6300) function Screen Share may be hidden. To activate it, hold down the button Settings on the remote control for 5 seconds - the extended menu will appear.
3. Connecting via streaming apps (Smart Share, TV Cast)
If built-in methods don't work, third-party apps can help. They're especially useful for older models. LG Smart TV (2016–2017), where there is no support AirPlay or MiracastLet's consider two proven options:
1. LG Smart Share (official app)
- 📱 Install LG Smart Share from App Store on iPhone.
- 📺 Turn on the function on your TV Smart Share in the network settings.
- 🔗 Connect both devices to the same Wi-Fi network.
- 🎬 In the app, select a file to broadcast (video, photo, or music).
2. TV Cast (universal streamer)
- 🌐 Download TV Cast For iOS And LG Smart TV (the application must be installed on both devices).
- 🔑 Register (free) and follow the pairing instructions.
- 📲 In the mobile app, select "Connect to TV» and follow the prompts.
- 🎮 For low latency gaming and video, select "Game Mode».
Comparison of applications:
| Application | Sound support | Delay (sec) | Registration required | Price |
|---|---|---|---|---|
| LG Smart Share | Yes | 2–4 | No | For free |
| TV Cast | Yes | 1–3 | Yes (free account) | Free + premium features |
| ApowerMirror | Yes | 3–5 | No | Paid (trial period) |
| Mirror for LG TV | No (video only) | 4–6 | No | Paid |
⚠️ Attention: Applications like TV Cast may collect data about your content (for example, which videos you stream). Please check the privacy policy before installing App Store.
4. Connecting via YouTube and other streaming services
If you only need to stream video (for example, from YouTube, Netflix or Apple TV+), the easiest way is to use the built-in functions of these services. This method does not require duplicating the entire screen and works more reliably than Screen Mirroring.
Instructions for YouTube:
- Open the app YouTube on iPhone and select a video.
- Click on the broadcast icon (the rectangle with Wi-Fi waves in the upper right corner).
- In the list of devices, select yours LG Smart TV.
- The video will start playing on the TV, and the control panel will remain on the phone.
Broadcasting works similarly with:
- 🎬 Netflix — the “Cast” button in the upper right corner.
- 🍎 Apple TV+ — icon AirPlay in the player.
- 🎵 Spotify — select a device in the “Playback on...” menu.
- 📺 Twitch — the "Cast" button in the stream player.
Important: To broadcast from Apple TV+ The TV must support AirPlay 2 — otherwise the content will not play due to DRM protection.
5. Troubleshooting connection issues
Even with the correct settings, errors can still occur. Here are the most common scenarios and how to fix them:
Problem 1: TV does not appear in the list of devices
- 🔌 Check the power supply — Sometimes the TV goes to sleep and doesn't respond to requests. Reset it using the button on the TV.
- 📡 Change Wi-Fi band - if the router is operating in mode
2.4 GHz + 5 GHzwith the same name (SSID), separate the networks and connect both devices to5 GHz. - 🔧 Update your TV firmware - come in
Settings → Maintenance → Software Update.
Problem 2: There is a picture, but no sound
- 🔊 Check your TV's sound settings:
Settings → Sound → Sound Output(must be selected)TV SpeakerorHDMI ARC). - 📱 On iPhone V Control center hold your finger on the sound block and select LG TV as an output device.
- 🔄 Reconnect - sometimes the sound appears after restarting the broadcast.
Problem 3: Severe lag or connection drops
- 📶 Check your Wi-Fi speed — for a stable broadcast you need at least
15 Mbps. Use the app Speedtest on the phone. - 🛡️ Disable VPN on iPhone - it can block multicast traffic.
- 🔌 Connect the TV via cable - If the router supports it, connect the TV to the router via
Ethernet.
6. Alternative methods (for older TV models)
If your LG Smart TV released before 2016 and does not support any AirPlay, no Miracast, the following options remain:
1. Connection via Apple TV (for models without Smart functions)
- 📦 Buy a console Apple TV 4K and connect it to the TV via
HDMI. - 🔗 Connect Apple TV And iPhone to one Wi-Fi network.
- 🖥️ Use it AirPlay for broadcasting to a set-top box.
2. Use Chromecast or Fire TV Stick
- 🔌 Connect your device to
HDMI-TV port. - 📱 Install on iPhone application Google Home (For Chromecast) or Fire TV (For Amazon).
- 🎬 Stream content through supported apps (e.g. YouTube, Netflix).
3. Cable connection via adapter Lightning → HDMI
- 🔌 Buy a certified adapter (for example, Apple Lightning Digital AV Adapter).
- 📺 Connect iPhone with TV through
HDMI-cable. - 🖥️ Your phone screen will be duplicated without delays (ideal for gaming).
Comparison of alternative methods:
| Method | Delay | Sound support | Additional costs | Difficulty of setup |
|---|---|---|---|---|
| Apple TV | 1–2 sec | Yes (including Dolby Atmos) | From 10,000 ₽ | Low |
| Chromecast | 2–4 sec | Yes | From 3,000 ₽ | Average |
| HDMI adapter | 0 sec | Yes | From 4,000 ₽ | Minimum |
⚠️ Attention: When using an adapter Lightning → HDMI The phone will discharge faster. It is recommended to connect iPhone to charge during the broadcast.
FAQ: Frequently Asked Questions
Is it possible to connect an iPhone to an LG TV without Wi-Fi?
Yes, but with restrictions:
- Through HDMI adapter (wired connection).
- Through USB-C/Lightning to Ethernet (requires special adapter and support) LG TV).
- Wi-Fi Direct (if the TV supports creating its own network).
Wireless streaming without a router is only possible if the TV is Wi-Fi capable (not all models have this feature).
Why does the video slow down when connecting via AirPlay, but the sound is fine?
This is a typical problem with a weak Wi-Fi signal. Causes and solutions:
- The router is overloaded - Disconnect other devices from the network.
- Low speed - check the speed on iPhone (must be ≥20 Mbps).
- Interference — change the Wi-Fi channel in the router settings (channels 36–48 for 5 GHz are recommended).
- Video compression — in the settings LG TV disable the "Video Optimization" option (
Settings → Picture → Advanced).
How to mirror your iPhone screen to an LG TV if your TV doesn't support AirPlay?
Options:
- Use Miracast (if available in TV settings).
- Install the streamer app (For example, TV Cast or ApowerMirror).
- Connect an external device (Apple TV, Chromecast).
- Use a cable connection via adapter Lightning → HDMI.
For models LG 2015 and later may require a firmware update (if available).
Can I play mobile games on my TV via Wi-Fi?
Yes, but with some reservations:
- Delay when connected wirelessly (~50–100 ms) will make dynamic games (such as shooters) impossible.
- The best option - wired connection via HDMI adapter (delay ≤10 ms).
- Supported games: strategies, puzzles, simulators (for example, Minecraft, Stardew Valley).
- Settings: In the streamer app, select "Game Mode" (if available).
Why did screen mirroring stop working after updating iOS?
This is a common problem after major updates. iOSSolutions:
- Reboot iPhone And LG TV.
- Reset network settings on your phone:
Settings → General → Transfer/Reset → Reset network settings. - Update your TV's firmware (even if it appears to be up to date).
- Check if it is blocking VPN or firewall There is multicast traffic on the router.
If the problem persists, wait for a patch from Apple (usually released within 1-2 weeks after the release of a new iOS).