Modern technology has made smartphones the primary media outlet for multimedia content, but mobile device screens are often too small to comfortably view high-definition movies. Fortunately, the ecosystem LG Smart TV Offers a variety of ways to stream images and sound to a big screen without the hassle of wires. This isn't just convenient, it also lets you transform your living room into a true home theater in minutes.
The main advantage of a wireless connection is the absence of clutter from cables, as well as the ability to control playback directly from a mobile device, while the rest of the family can do their own thing or just enjoy the picture on 4K displayIn this article, we'll take a detailed look at all current data transfer methods, from built-in system functions to third-party apps that ensure stable signal transmission.
Before you begin setup, you need to make sure your TV and smartphone are on the same local network. This is a fundamental requirement for most media transfer protocols, such as DLNA And MiracastIf your router broadcasts on both 2.4 GHz and 5 GHz frequencies, make sure both devices are connected to the same band to avoid visibility issues.
Preparing the network and checking device compatibility
The first step to successful streaming is properly setting up your home Wi-Fi network. Wireless connection speed directly impacts the quality of the transmitted video stream. For viewing video in Full HD or 4K resolution, we recommend using the standard Wi-Fi 5 (802.11ac) or newer, which provides sufficient bandwidth. If the router is located far from the TV, the signal may be unstable, leading to buffering.
It is important to check if your TV model supports it. LG WebOS necessary protocols. Most modern models released after 2015 have built-in support for the technology. Screen Share, which is based on the Miracast standard. Android smartphones should also have a corresponding feature, often called "Cast," "Smart View," or "Wireless Monitor."
For Apple devices, the LG ecosystem offers support AirPlay 2, which allows you to stream content from your iPhone and iPad without installing additional software. However, for this feature to work, the TV must be updated to the latest firmware version. You can check the current software version in the TV settings menu.
⚠️ Note: If your router is configured for AP Isolation, the TV and phone will not be able to see each other. This feature must be disabled in the router settings.
It's also worth considering that some antivirus programs or firewalls on computers connected to the same network may block streaming. Make sure your network security settings are set to "Private Network" or "Home Network," not "Public."
Broadcast via the built-in Screen Share (Miracast) function
The most common way to display an image from an Android smartphone on an LG TV is using technology MiracastIn LG TVs, this function is implemented through an app. Screen ShareIt allows you to mirror everything that happens on your mobile device's screen, including your desktop, games, and videos from browsers that don't have built-in DRM protection.
To start the process, you need to launch the app on your TV. On the remote control, press the house button or the Input, then select the application Screen ShareA waiting connection message will appear on the screen. At this point, the TV is either creating a direct Wi-Fi connection or waiting for a connection through the router, depending on the model.
The next steps depend on your smartphone manufacturer. On Samsung devices, you need to open the Quick Settings panel and select Smart ViewOn Xiaomi phones, this feature is called "Cast," and on stock Android devices, it's called "Screen Casting" or "Cast." After searching for available devices, select yours. LG TV from the list.
☑️ Check before connection
Once the connection is successful, the image from your smartphone will appear on your TV. It's important to understand that when using Miracast, your smartphone's screen stays on, which can lead to increased battery drain. Furthermore, the resolution of the streamed image will be limited to the smartphone's screen resolution, unless configured otherwise.
If the connection fails the first time, try rebooting the Wi-Fi module on both devices. Sometimes temporarily disabling VPN services on your phone helps, as they can change your virtual location and interfere with local device detection.
Using LG TV Plus and DLNA technology
Unlike screen mirroring, the technology DLNA (Digital Living Network Alliance) allows you to stream media files (videos, photos, music) directly to your TV, where they are decoded by the built-in media player. This is a more energy-efficient method, as the phone only acts as a remote control, not a source of the live video stream.
To implement this method, LG offers an official application LG TV Plus (or its newer counterparts such as LG ThinQ). Download the app from Google Play or the App Store and register or sign in to your LG account. The app will automatically find your TV on your Wi-Fi network.
After pairing, which requires entering a code displayed on the TV screen, you gain access to your smartphone's gallery. After selecting a video, you can play it on the big screen. The advantage of this method is that you can use your phone for other tasks, and the video will play smoothly, without the stuttering that's typical on a congested Wi-Fi channel when mirroring.
| Characteristic | Miracast (Screen Share) | DLNA (LG TV Plus) | Chromecast built-in |
|---|---|---|---|
| Transmission type | Screen mirror | File streaming | Streaming via link |
| Loading the phone | High | Low | Low |
| Image quality | Depends on the phone screen | Original file | Original stream |
| Work in the background | No (screen active) | Yes | Yes |
It's worth noting that DLNA doesn't support all video file formats. If the TV can't play a file due to an unsupported codec, the app will suggest using the casting function, which will revert to mirroring. For best compatibility, it's recommended to use the following formats: MP4 or MKV with H.264 codec.
Streaming via Google Chromecast built-in
Many modern models LG Smart TV equipped with a built-in function ChromecastThis allows you to stream content directly from aggregator apps like YouTube, Netflix, Twitch, or online cinemas (ivi, Okko, Kinopoisk), bypassing the process of mirroring the entire screen.
The principle here is different from Miracast. When you tap the cast icon (the rectangle with waves) in the phone app, you're simply sending the TV a link to the video stream. The TV automatically downloads and plays the video over its own internet connection. This guarantees the highest picture quality, up to 4K HDR, and zero lag.
To use this feature, make sure your TV has the latest system update installed. WebOSThe YouTube app on your TV may require activation via a code displayed on-screen. Once the devices are linked, playback controls (pause, rewind, and volume) are fully transferred to your smartphone.
⚠️ Important: When using Chromecast, it's critical that your internet speed is sufficient for high-quality streaming. If your router's internet connection is weak, the video will constantly pause to buffer, even if the Wi-Fi signal between the router and TV is excellent.
The peculiarity of this method is that it only works in applications with built-in Cast support. Simply casting the desktop or game via Chromecast built-in (without purchasing a separate dongle) may not work on some models, unlike with full-fledged Miracast.
Connecting iPhone and iPad via AirPlay 2
Apple device owners are lucky with the protocol integration AirPlay 2 LG TVs. This technology allows you to not only stream video, but also display photos, music, and even the entire screen of your iOS device on your TV. The transmission quality remains lossless, which is important for viewing the footage.
To start casting, open Control Center on your iPhone (swipe down from the upper-right corner or up from the bottom, depending on your model). Tap the Mirror button (two rectangles). Select your device from the list of available devices. LG TV.
A connection confirmation prompt may appear on your TV. Enter the code displayed on your smartphone. The image from your iPhone will then appear on your TV. AirPlay 2 also allows you to use your TV as an external speaker, streaming only audio from apps like Apple Music or podcasts.
What to do if AirPlay isn't working?
Make sure Client Isolation isn't enabled on your router. Also, make sure your iPhone and TV have the latest iOS and webOS updates, respectively. Restarting the router can sometimes help.
A key advantage of AirPlay is its multi-touch control and low latency. However, if you plan to watch movies from file managers that don't natively support AirPlay, you'll need to use Screen Mirroring, which, like Miracast, keeps your phone's screen active.
Third-party applications and compatibility issues
Sometimes built-in tools are not functional enough or don't support specific file formats. In such cases, third-party translation apps available in stores come to the rescue. LG Content Store or mobile markets. Popular solutions include Web Video Caster, BubbleUPnP or AllConnect.
These applications are often able to bypass restrictions imposed by browsers or file managers. For example, Web Video Caster Allows you to open a video on a website in your phone's browser and then send the link directly to the TV's built-in player, emulating the Chromecast experience even for websites that don't officially support it.
To install third-party software on your LG TV, go to the app store, find the desired app (for example, Receiver for receiving files), and install it. You'll also need to install a companion app on your phone. Connection typically occurs via a QR code or by searching for devices on your local network.
When using third-party software, be aware of ads that may pop up on your TV screen in free versions of the apps. For regular use, we recommend purchasing the Premium version of the app to eliminate interruptions while watching a movie.
Optimizing your Wi-Fi network for stable streaming
The quality of your wireless streaming directly depends on the condition of your Wi-Fi network. If the picture breaks up into blocks when watching movies or the audio lags behind the video, the problem lies with the data transmission channel. Modern routers operate in two bands: 2.4 GHz and 5 GHz.
Range 2.4 GHz It has a long range, but it's heavily polluted by neighboring routers, microwaves, and Bluetooth devices. Its maximum real-world speed rarely exceeds 20-30 Mbps, which may be insufficient for 4K content. The range 5 GHz Provides much faster speeds and less interference, but penetrates walls worse.
For the best experience watching movies from your phone on your LG TV, it's highly recommended to connect both devices to a 5 GHz network. If your router is in another room and the 5 GHz signal is weak, consider using a mesh system or Powerline adapters, which transmit internet through electrical wiring.
⚠️ Note: Signal interference is a common cause of problems. If a microwave oven or baby monitor is located near the router or TV, they can create strong interference when turned on, interrupting your movie.
It's also worth checking how many devices are simultaneously consuming bandwidth. If someone in the next room is downloading torrents or playing online games, their streaming bandwidth may be reduced. Adjust your router's Quality of Service (QoS) settings to prioritize your TV's traffic.
Frequently Asked Questions (FAQ)
Why doesn't my phone see my LG TV in the list of available devices?
Most often, the cause is that the devices are connected to different networks (for example, one to a guest Wi-Fi network, the other to the main network). Also, check whether your phone's antivirus software is blocking detection of devices on the local network. Make sure the appropriate signal-receiving app is open on the TV.
Is it possible to display a phone screen on a TV without Wi-Fi?
Without a Wi-Fi router, this is only possible using Wi-Fi Direct (a direct connection between the phone and TV without internet) or via a cable adapter (USB-C to HDMI / Lightning to HDMI). Wireless methods like Miracast and AirPlay require a Wi-Fi module, even if the internet is not connected.
Why is there no sound on the TV when streaming via Wi-Fi?
Check the audio output settings in the app you're streaming from. Sometimes the audio remains on your phone. Also, make sure your TV isn't set to "Video Only" or a similar mode. In rare cases, restarting both devices can help.
Does a low phone battery affect picture quality?
When using mirroring (Miracast/AirPlay), the phone actively encodes the video stream, which puts a heavy load on the processor and quickly drains the battery. If the battery drops below a critical level, the phone may drop the connection or enter power-saving mode, causing lag.
How can I improve the quality of a picture if it looks blurry?
Make sure you're streaming high-definition content (not SD). In the source app settings (e.g., YouTube), manually select 1080p or 4K quality. Also, check that your TV isn't set to "16:9 Only" or image stretching, which can distort the aspect ratio.