Watching your favorite TV series or new blockbuster on the small screen of a smartphone often causes discomfort, especially if you want to share this pleasure with your family or just enjoy the detail of the picture. The owners of the bundle Samsung Galaxy and LG Smart TV are in an advantageous position, since the ecosystems of these brands allow organizing the broadcast of content in several ways. Modern data transfer protocol and built-in Android functions make this process intuitive, without requiring deep technical knowledge.
In this article we will analyze all the current methods of connecting your mobile device to a TV: from completely wireless technology Miracast to a reliable wired connection via HDMI. You will learn how to set up a video stream without delays, what applications to use for streaming from the Internet, and how to avoid common mistakes when pairing devices.
Preparing devices for a wireless connection
Before you start setting up the broadcast, you need to make sure that both devices are ready to communicate via a local network. The key condition for stable operation is to have a smartphone Samsung and TV LG in one Wi-Fi networks. If your router supports dual band, it is highly recommended to use the frequency 5 GHzas it provides higher throughput for streaming high-definition video.
On an LG TV, the wireless connection function is usually built into platform webOS and does not require installation of additional software. You just need to check that the Wi-Fi module is active. To do this, take the remote control and press the settings button, then go to the Settings → Network → Connect to a Wi-Fi networksection. Make sure that the connection status is displayed as "Connected".
On the Samsung smartphone side, you should also activate the necessary communication modules. Lower the notification shade and find the Smart Viewicon. On some models, this feature may be called "Broadcast" or "Screen Mirroring". Make sure that geolocation is enabled, as in the latest versions Android this requirement is necessary to search for devices on the local network.
⚠️ Attention: If your router is configured with separate networks for 2.4 GHz and 5 GHz with different names (SSID), make sure that both the TV and the phone are connected to the same frequency. Different subnets can block detection of devices by each other.
☑️ Check before connecting
Using Screen Share technology (Miracast)
The fastest way to display the image from the phone screen on the TV is to use the built-in standard Miracast. In the LG ecosystem, this technology is implemented through an application Screen Share. It allows you to duplicate the smartphone screen in real time, which is ideal not only for movies, but also for demonstrating photos or application interfaces.
To get started, turn on the TV and launch the application on it Screen Share. It is usually found in the list of pre-installed apps or in the "Additional Media" section. After launching, the application will go into connection waiting mode. The name of your TV and the status “Ready to connect” will appear on the screen.
Now take your Samsung Galaxy. Open the quick settings panel and click on the Smart Viewicon. The phone will begin scanning for available devices within range. Once your LG TV appears in the list, click on its name. A request to confirm the connection may appear on the TV screen - use the remote control to select “Accept” or “Allow.”
To watch movies in landscape orientation, rotate the phone horizontally. The image on the TV will automatically adjust to the 16:9 format, filling the entire screen without black bars on the sides.
After successful pairing, the screen of your smartphone will be displayed on a large display. Launch any browser or application for watching movies (for example YouTube, Kinopoisk, ivi), and the content will be broadcast to your TV. Please note that when using this method, the phone screen must remain on, as it acts as a video source.
Broadcasting video through built-in applications (Smart Share)
Unlike full screen mirroring, the function Smart Share allows you to transfer only a media file to the TV, freeing up your smartphone for other tasks. This is especially convenient if you want to watch a movie from the Internet, but at the same time chat in instant messenger or check email without interrupting viewing.
Many popular video services have built-in support for the DLNA or Google Castprotocol, which works great with LG TVs. Open the application, for example YouTube on the phone. Find the broadcast icon (a rectangle with Wi-Fi waves in the corner) at the top of the video player interface.
Click on the icon and select your TV from the list LG. The video stream will switch to TV, and the control panel (pause, rewind, volume) will remain on the smartphone screen. You can minimize the application or even lock the phone screen - the movie will continue to play on the TV, as it downloads the stream directly from the Internet.
| Connection method | Phone processor load | Picture quality | Ability to minimize |
|---|---|---|---|
| Smart View (Duplication) | High | Depends on Wi-Fi signal | No (screen must be active) |
| Smart Share (DLNA/Cast) | Minimum | Maximum (native) | Yes (you can use other apps) |
| HDMI cable | Average | Stable Full HD/4K | No (power required) |
Wired connection via USB-C to HDMI adapter
If the wireless connection is unstable or you want to achieve maximum picture quality without compression, a wired connection is the best solution. For this you will need a special adapter USB Type-C to HDMI. It is important to note that the USB-C port on your Samsung must support the standard DisplayPort Alt Modeotherwise video signal transmission will not be possible.
Connect the adapter to the charging port of your smartphone, and then connect it with a cable HDMI with the corresponding port on the LG TV. Switch the signal source to TV by pressing the Input or Source button on the remote control and selecting the desired port (for example, HDMI 1). The image should appear automatically.
In some cases, you may need to change the resolution settings on the phone itself. Go to Settings → Screen → Screen resolution and select a mode that matches the capabilities of your TV (usually 1920x1080 or 3840x2160). A wired connection guarantees the absence of delays and compression artifacts, which is critical for dynamic scenes in films.
⚠️ Attention: When using an adapter, the phone may quickly discharge, since video signal transmission consumes a lot of energy. It is recommended to connect the power cable to the additional USB port on the adapter (if there is one) or use a model with pass-through charging.
Why is there no picture when connecting the cable?
If the image does not appear when you connect the cable, check whether your phone model supports video output via USB-C. Budget Samsung A series models (some versions) may not have hardware support for DisplayPort Alt Mode. In this case, only a wireless connection or purchasing a special docking station with DisplayLink support that uses software compression will help.
Third-party applications to expand capabilities
Standard tools are good, but sometimes they do not see specific file formats or have limitations. In such cases, third-party applications from the store come to the rescue. One of the most powerful tools is the application Google Play. One of the most powerful tools is the application Web Video Caster or BubbleUPnP. They allow you to stream video from almost any website directly to your LG TV.
The principle of operation of such apps is simple: you find a movie on a website inside the application’s built-in browser, click the “Broadcast” button, and the application sends a link to the video stream directly to the TV’s media server. This takes the load off the phone and allows you to use the full potential of the network.
To work with these utilities on your LG TV, you may also need to install a companion application from the store LG Content Store. Once both components are installed, link them via a QR code or pairing code displayed on the screen.
Third-party caster apps often bypass site restrictions that block built-in streaming from standard browsers, allowing you to watch content that is otherwise unavailable for output on TV.
Solving common problems and problems
Even with proper configuration, users may encounter problems: desynchronization of audio and video, disconnections or lack of image. Most often, the reason lies in an overloaded Wi-Fi channel or outdated software.
First of all, check the TV firmware updates. Go to Settings → All settings → Support → Software update and select "Update via network". The presence of a new version webOS often corrects compatibility errors with new smartphones.
If the sound lags behind the picture when connected wirelessly, try in the phone settings (in the Developer Options section, if developer mode is enabled) change Bluetooth or Wi-Fi buffering. However, the easiest way is to reboot the router and both devices - this clears the network settings cache and eliminates temporary IP address conflicts.
⚠️ Attention: Menu interfaces and item names may differ slightly depending on the version of the webOS operating system on your TV and the version of Android on your smartphone. Always check the manufacturer's current documentation if you cannot find the item you need.
If the broadcast is constantly interrupted, try temporarily disabling the "Guest Network" function or Client Isolation on the router, as it prevents devices within the same network from seeing each other.
Frequently asked questions (FAQ)
Is it possible to connect a phone to an old LG TV without Smart TV?
Yes, but only by wire. You'll need a USB-C to HDMI adapter that plugs directly into your TV's HDMI port. Wireless technologies (Miracast, Wi-Fi Direct) require a built-in Wi-Fi module and a Smart TV operating system on the receiver side.
Why does the LG TV not see a Samsung phone when searching?
The most likely reason is that the devices are connected to different Wi-Fi networks (for example, one to the main, the other to the guest). Also check if the client isolation mode is enabled on the router. Make sure that the Screen Share application is running on your TV or the "Mobile TV" function is enabled in the network settings.
Does connecting your phone affect the quality of the Internet for other devices?
When using wireless broadcasting (Smart View), the phone acts as a repeater, which creates additional load on the network. When using the Cast (DLNA) mode, when the TV downloads the video itself, the load is distributed differently, but the common Wi-Fi channel is still loaded with a data stream, which can slow down the work of other gadgets.
Will the sound work if I lock the phone screen?
When mirroring the screen (Smart View), locking the screen usually stops the broadcast. However, when using the “Broadcast” function inside applications (YouTube, Netflix) or third-party casters, sound and video will continue to play on the TV even when the smartphone screen is turned off.