In the age of digital media storage, viewing photos, videos, or presentations on a large screen is becoming a standard for most users. Owners of devices from different brands often face the need to sync devices without having to buy additional cables. The modern ecosystem Smart TV Allows you to stream content directly over your home wireless network, providing high-quality images without delays.
The process of pairing smartphones Samsung and televisions LG It's based on the Miracast and DLNA standards, which are built into the operating systems of both devices. This means you won't need complicated router settings or third-party set-top boxes to stream, as long as both devices support Smart TV. The main requirements are a stable Wi-Fi signal and the correct menu sequence.
In this article, we'll take a detailed look at all available screen mirroring and media sharing methods. You'll learn how to activate hidden features, which apps can be helpful if standard methods don't work, and how to optimize your network to minimize lag while watching.
Preparatory stage: setting up the network and devices
Before starting the procedure, you must ensure that both devices are in the same connection conditions. Wi-Fi router must work correctly, and the frequency range (2.4 GHz or 5 GHz) must be supported by both devices. It is recommended to connect both the phone and TV to the same access point, avoiding the use of guest networks with client isolation.
Access your router settings via a browser or your ISP's app and check the connection status of your clients. Make sure the MAC address filter isn't blocking any devices, and that the wireless network mode is set to mixed or automatic for maximum compatibility.
⚠️ Important: If your router supports AP Isolation, you must disable it. This feature prevents devices on the same network from seeing each other, making it impossible for your phone to detect your TV.
Update the software on both devices to the latest available version. On the TV LG This is done through the menu Settings → All settings → Support → Software updateOn a smartphone Samsung the path looks like this: Settings → Software Update → Download and InstallLatest drivers often contain fixes for data transfer protocols.
Method 1: Using LG's built-in Screen Share feature
Televisions LG TVs with the webOS operating system have a built-in signal receiver called Screen Share. To start broadcasting, you don't need to install any additional apps on your TV; simply activate the corresponding mode in the signal source menu.
Press the button on the remote control Input or Smartto open the app launcher. Find the icon Screen Share (often looks like a smartphone icon with waves) and launch it. A message will appear on the screen indicating that you're waiting for a connection and the device's name.
Now take the phone SamsungSwipe down the notification shade twice to reveal the full list of quick buttons. Find the button Smart View (previously called Smart View or Cast) and tap it. The phone will begin searching for available displays within range.
- 📱 Select a name for your TV LG from the list of found devices.
- 🔒 If a confirmation prompt appears on the TV screen, use your remote to press "Accept" or enter the code.
- 📺 The image from your phone will instantly appear on the big screen in horizontal orientation.
Once paired successfully, you can minimize the phone menu, and the image will remain on the TV. A floating control panel will appear on the smartphone screen to control the streaming, allowing you to adjust the image quality or terminate the connection.
☑️ Check before connection
Method 2: Streaming via the LG TV Plus app
If the standard mirroring method is unstable or you want to control your TV in more detail, use the official app. LG TV PlusIt's available in the store. Google Play and provides advanced functionality for interacting with the Korean brand's equipment.
Install the application on your smartphone Samsung and launch it. The program will automatically scan the network and offer a list of available TVs. Select your model. LGA pairing request may appear on the TV screen, which must be confirmed with the remote control.
In the app interface, go to the content management section. Here, you can select photos or videos from your phone's gallery and send them to playback. Unlike full screen mirroring, this method allows you to use your phone for other tasks while watching a video on your TV.
⚠️ Note: The LG TV Plus app may not support screen mirroring of some DRM-protected services (such as Netflix or Disney+) in full resolution due to copyright protection policies.
To start mirroring through the app, find the button Screencasting or Screen Mirror in the utility's main menu. Data transfer quality in this mode is often higher, as it uses an optimized packet exchange protocol.
What should I do if the app doesn't detect the TV?
If the automatic search doesn't yield any results, try manually adding the device by IP address. You can find the TV's IP address in the TV's network settings (Menu → Network → Wi-Fi → Advanced Settings). Also, make sure local network communication is allowed on your phone and TV in your router's firewall settings.
Method 3: Third-party repeater apps
When native tools prove insufficiently functional or compatible, third-party solutions come to the rescue. The leader in this area is the app TV Cast for LG or Web Video CasterThey allow you to stream content from browsers and file managers that do not support the standard Cast protocol.
Install the selected application on your phone SamsungOn TV LG You may also need to install a companion app from the LG Content Store, although many modern versions work through a browser interface. Open the app on your phone and tap the connect button.
Once connected, the program interface allows you to select files locally or enter video stream URLs. This is a great way to watch videos from online cinemas that don't have an official app. webOS.
| Application | Broadcast type | Format support | Presence of advertising |
|---|---|---|---|
| Smart View (Native) | Mirroring | All screen formats | No |
| LG TV Plus | Media files | Photos, Videos, Music | No |
| Web Video Caster | Streaming video | MP4, MKV, AVI, HLS | Yes (in free) |
| BubbleUPnP | DLNA rendering | Audio, Video, Photo | No |
Using third-party software is especially important if you need to play a file with a specific codec that your TV's built-in player doesn't understand. In this case, the phone's processor handles the decoding.
Streaming content from specific apps
Many popular services such as YouTube, Netflix or VK Video, have a built-in Cast function. This allows you to use your phone solely as a remote control, without taxing its battery and processor with constant video encoding.
Open the app on your smartphone and find the streaming icon (the rectangle with waves in the corner). Tap it and select your TV. LGThe video will start playing directly through the app on your TV, using the Internet TV channel.
This method is the most energy-efficient and provides the best picture quality, as the stream is transmitted directly from the service's servers to the TV, bypassing the phone after the startup command. In this case, the phone only sends control commands.
⚠️ Important: When streaming from apps, make sure your phone and TV accounts are authorized if the service requires a subscription. Some services may block streaming if the account regions don't match.
If the Cast button doesn't appear, check that local network access is enabled in the app's settings. Sometimes permission to access the local network is requested when the app first launches, and the user may accidentally click "Decline."
Troubleshooting connection issues and errors
Despite the standardization of technologies, users often encounter situations where the TV isn't visible in the device list or the connection keeps dropping. First, check if power-saving mode is enabled on your phone, which could limit Wi-Fi activity in the background.
If devices are on the same network but can't see each other, try rebooting the router. Often, the problem lies in an overflowing ARP address table or a temporary DHCP server failure that prevented the devices from assigning valid IP addresses.
If you experience constant connection drops or "blocky" screens, reduce the bandwidth. Disable downloads on other devices on the network or switch your TV and phone to a less congested router frequency.
- 🔄 Reset your TV's network settings using the menu
All Settings → Support → Self-Diagnostics → Reset Smart Hub. - 🔌 Disconnect your phone from the Wi-Fi network and reconnect it, forgetting the previous network.
- 📡 Make sure the distance between your router and devices does not exceed reasonable limits for your range.
It's also worth checking the date and time on both devices. Clock desynchronization can lead to security certificate errors, which can prevent successful handshake protocols and connection failure.
Why is only the picture being broadcast without sound?
This is most often related to Bluetooth settings. When Smart View is activated, audio may switch to connected Bluetooth headphones or speakers instead of the TV. Check the audio output in your phone's quick access panel and select the TV or phone speaker.
Is it possible to connect a phone to a TV without Wi-Fi?
Without a wireless network, only wired adapters (USB-C to HDMI) can be used. However, Samsung and LG models offer Wi-Fi Direct technologies that create a direct connection between devices without a router, but functionality may be limited.
Does broadcasting affect internet speed?
Using the Cast method (from the YouTube app) doesn't affect internet speed, as the TV downloads the video itself. When mirroring (Smart View), the phone streams the video, which can consume a significant portion of your local network's bandwidth, but not necessarily your internet connection if the video is playing from memory.