Modern multimedia systems allow you to do without unnecessary wires and enjoy content on a large screen with minimal effort. Image broadcast Smartphone-to-TV streaming has become the standard thanks to the introduction of Smart TV technology and support for wireless data transfer protocols. This opens up opportunities for watching movies from unverified sources, sharing family vacation photos, or even playing mobile games on panels with a diagonal of 65 inches or more.
The connection process is based on the use of a local network Wi-Fi, which ensures high-speed video streaming without noticeable delays. However, despite its apparent simplicity, users often encounter operating system compatibility issues. Android And iOS with a software shell webOSIn this article, we'll take a detailed look at all available device synchronization methods.
It's important to understand that image quality and connection stability directly depend on your router's bandwidth. If you plan to stream video in 4K or Full HD When using high frame rates, ensure both devices are within range of a strong signal. Failure to do so may result in image artifacts or audio desynchronization.
Technical requirements and equipment preparation
Before you begin setting up, you need to make sure your equipment meets the minimum requirements for the correct operation of wireless protocols. The main requirement is the presence of a module Wi-Fi Both devices must be connected to the same subnet. This means the smartphone and TV must be connected to the same router, even if one of them uses a cable connection (although for wireless data transfer, it's better if both are connected via Wi-Fi).
The operating system version is critical for LG TVs. webOSMost modern models released after 2018 support native protocols. Miracast (for Android) and AirPlay 2 (for iPhone). If you have an older model, you may need to install additional software or use external adapters.
⚠️ Attention: Some ISPs use client isolation technology in their routers. If you don't see your TV in the list of available devices, check your router settings and disable AP isolation or guest network mode.
It's also worth updating your TV's firmware to the latest version, as manufacturers regularly release patches that improve connection stability. DLNA And Smart Share. The check can be performed through the settings menu by going to the section Settings → All settings → Support → Software update.
Casting from Android: Built-in Tools and Miracast
operating system Android has a built-in screencasting feature that is based on the protocol MiracastOn most smartphones, this feature is called "Cast," "Smart View," "Projection," or "Wireless Monitor," depending on the device manufacturer. LG TVs support this standard natively, so installing additional apps is usually not necessary.
To start the process, unlock your smartphone and pull down the notification shade. Find the icon corresponding to the casting function and tap it. The system will begin searching for available devices on the network. When your device appears on the list, LG TV, select it. A connection confirmation prompt may appear on the TV screen, which you'll need to accept using your remote.
It's important to note that using Miracast creates a direct connection between devices, which may slightly increase the load on your smartphone's battery. Furthermore, in this mode, the phone and TV screens mirror each other: if a notification or call comes in on the phone, it will also appear on the big screen.
- 📱 Make sure your smartphone has Wi-Fi and Bluetooth turned on (for initial discovery).
- 📺 On your LG TV, the Screen Share feature must be active (usually available in the app launcher menu).
- 🔒 If a PIN is required, it will be displayed on the TV screen when you try to connect.
- 🔄 To disconnect, simply disable the broadcast function in your smartphone's notification bar.
☑️ Android Pre-Broadcast Check
Using AirPlay 2 for iPhone and iPad owners
Equipment owners Apple can take advantage of the technology AirPlay 2AirPlay 2 is built into LG TVs starting with 2019 models (B9, C9, E9 series, and later). This allows you to mirror your iPhone or iPad's screen to your TV without the need for third-party apps or hacks. AirPlay 2 typically offers higher image quality and minimal latency.
The activation process is extremely simple: open the Control Center on your device (swipe down from the top right corner on models with Face ID or swipe up from the bottom on models with a home button). Tap the Screen Mirroring icon (two rectangles) and select your LG TV from the list. If this is your first time, a four-digit code will appear on your TV screen, which you'll need to enter on your iPhone.
A unique feature of AirPlay is the ability to not only mirror the screen, but also stream content from individual apps. For example, you can watch videos in VLC or Safari on your TV while continuing to chat on your phone. Additionally, audio streaming to an external audio system is supported via the AirPlay protocol.
⚠️ Attention: AirPlay 2 on LG TVs may be disabled by default in the privacy settings. If your iPhone doesn't see your TV, go to
Settings → Support → AirPlayon the TV and make sure the switch is in the "On" position.
It's worth remembering that when mirroring the screen in vertical orientation (portrait mode), black bars will appear on the sides of the image on the TV. This is normal, as the video frame format is usually horizontal (16:9), and the smartphone screen is elongated.
Comparison of connection methods: characteristics table
To choose the optimal connection method, it's important to understand the differences between the available technologies. Each method has its own advantages depending on the type of content and the smartphone used. Below is a comparison table of the main features.
| Characteristic | Miracast (Android) | AirPlay 2 (iOS) | LG TV Plus app |
|---|---|---|---|
| Image quality | Up to 1080p/60fps | Up to 4K/HDR | Depends on the codec |
| Latency | Average | Low | High |
| Sound transmission | Yes (synchronously) | Yes (multiroom) | Yes |
| Work in the background | No (the screen is on) | Partially | Yes |
As can be seen from the table, to watch movies in high definition, owners iPhone It's better to use AirPlay 2. For quickly displaying photos or documents from an Android smartphone, the built-in one is ideal MiracastThe LG TV Plus app should be considered an auxiliary tool for managing or viewing media files from the phone's internal memory.
Why might 4K not work?
4K streaming requires very high Wi-Fi speed. If the router is old or located far away, the system will automatically downgrade to Full HD or HD Ready to prevent connection interruptions.
Streaming via the LG TV Plus app
Official app LG TV Plus (formerly known as LG ThinQ) offers advanced control and streaming capabilities. It's available for download from Google Play and the App Store. This method is especially useful if standard protocols don't work for some reason or if you need to stream files in specific formats that aren't supported by your TV's built-in player.
After installing the app and registering (or logging in to your LG account), you need to add your TV. The app will automatically find devices on the network. Once paired, a "Cast" button or screen icon will appear in the interface. You can select photos, videos, and music from your smartphone and send them to the TV.
The main advantage of this method is the ability to use your smartphone as a remote control while watching. You can pause the video, adjust the volume, or select tracks without leaving the couch. However, this method is not suitable for streaming gameplay or desktop content, as it relies on a DLNA renderer rather than mirroring.
- 📥 Download the official LG TV Plus app.
- 🔗 Register devices to one LG account for quick access.
- 📂 Supports JPEG, PNG, MP4, MKV, MP3 formats.
- 🎮 Not suitable for gaming due to high input lag.
Solution: Connection and quality issues
Even with proper setup, users may encounter technical difficulties. The most common issue is that the TV doesn't appear in the list of available devices. In 90% of cases, this can be resolved by rebooting the router and the devices themselves. Sometimes, forgetting the Wi-Fi network on your smartphone and reconnecting with the password helps.
If the image is choppy or the audio lags behind the video, try reducing the network load. Close background apps on your smartphone that may be consuming data (such as cloud syncs and downloads). It's also worth checking whether your Wi-Fi channel is being overloaded by neighboring routers. In this case, changing the broadcast channel in your router settings to a less congested one (e.g., 1, 6, or 11 for 2.4 GHz) may help.
In rare cases, the problem lies with antivirus software or a firewall on your smartphone that is blocking local connections. Try temporarily disabling network protection and checking if it works. If all else fails, reset the network settings on your TV (Settings → All settings → Support → Self-diagnosis → Reset Wi-Fi) often resolves software conflicts.
⚠️ Attention: The LG TV menu interface may vary depending on the webOS version (3.0, 4.0, 5.0, 6.0, and later). If you don't find this option, use the search in the settings (magnifying glass icon) or refer to the user manual for your specific model.
Frequently Asked Questions (FAQ)
Is it possible to display a screen on an LG TV without Wi-Fi?
Wireless image streaming is impossible without a Wi-Fi network (either local or direct). However, you can use a wired connection via a USB-C to HDMI adapter (for Android) or Lightning/USB-C to HDMI adapter (for iPhone) if your TV has an available HDMI port. This will ensure the best quality and the absence of lag.
Why is there no sound during the broadcast, although the video is playing?
Check the audio settings in the app you're streaming from. Sometimes the sound remains on your phone if "Cast Audio" isn't enabled. Also, make sure your TV isn't set to "TV Speaker Only" in the audio settings if you've previously connected an external audio system.
Do older LG TVs support AirPlay?
Native AirPlay 2 support is available in 2019 and newer models. For older models (2018 and earlier), you can try installing the "TV Cast for LG" app or similar third-party solutions that will stream content through the TV's browser, but quality and stability may be lower.
Does screencasting affect internet speed?
Yes, using Miracast or AirPlay for screen mirroring creates a direct connection between your phone and TV, which doesn't put much strain on your internet connection. However, if you stream online videos (YouTube, Netflix) from your phone to your TV, your data usage doubles: first to your phone, then to your TV, which can reduce speeds for other devices on the network.