Modern smartphones such as Samsung Galaxy A51, are equipped with powerful multimedia capabilities that allow you to display content on large screens without using wires. Wireless connection via Wi-Fi is the most convenient way to share photos with friends or watch a movie in high definition. Smart View and Miracast technologies, built into the One UI interface, make the syncing process as simple as possible for the user.
However, despite the apparent simplicity, sometimes difficulties with device detection or connection stability arise. In this article, we'll cover all available methods in detail, from built-in system tools to third-party apps. You'll learn how to ensure high-quality video and audio transmission, as well as how to troubleshoot common connection errors.
To get started, make sure your TV Supports Smart TV or has a built-in Wi-Fi Direct module. If you're using a regular TV, you'll need an additional set-top box, such as an Android TV Box or Chromecast. The basic requirement for all the methods described below is that both devices are on the same local network.
Preparing equipment and setting up the network
The first and most critical step is the proper organization of the local network. Samsung A51 The router and TV must be connected to the same router. If you have a dual-band router, it's recommended to use the 5 GHz network for transmitting high-definition video, as it provides higher throughput.
Check that Wi-Fi is enabled on your smartphone. To do this, pull down the notification shade and make sure the icon is active. You should also reboot your router if the connection is unstable or devices don't see each other in the list of available devices.
In some cases, antivirus software or router security settings may block local communication between devices. Make sure your router's Client Isolation feature, which prevents devices within the network from exchanging data, isn't enabled.
⚠️ Note: If your router broadcasts two networks with the same name (2.4 GHz and 5 GHz), make sure that both devices are connected to the same one and not to different frequencies, as some older TVs may not see devices on the 5 GHz network.
Using the Smart View feature
The most native way for technology owners Samsung is the use of technology Smart ViewThis tool is built directly into the Android operating system and One UI, ensuring deep integration and stable operation without installing additional software.
To activate broadcasting, open the quick settings panel by swiping down from the top. Find the icon Smart View and click on it. The system will begin searching for available displays within Wi-Fi range. Select the name of your TV from the list.
Once paired successfully, your smartphone's screen will be fully mirrored to your TV. You can switch between apps, reply to messages, or play games, all displayed on the big screen in real time.
- 📱 Open the notification panel and find the icon Smart View.
- 📺 Select your TV from the list of devices provided.
- 🔒 If prompted, enter the PIN code displayed on the TV screen using your smartphone's keypad.
- 🎬 To stop the broadcast, click on the floating button and select
Disable.
☑️ Check before connection
Streaming via Google Home and Chromecast
If the built-in Samsung function does not work for some reason or your TV is based on the platform Android TV, an excellent solution would be an application Google HomeThis method is universal and allows you to broadcast your screen or specific content to any device that supports the Chromecast built-in protocol.
Download and install the Google Home app from the store Google PlayAfter installation, launch the program and sign in to your Google account. The app will automatically scan your network and find connected devices compatible with Chromecast.
Select your TV from the list of devices. In the control menu that opens, press the button. Broadcast your screen (Cast my screen). This action will launch image mirroring, similar to Smart View, but using Google protocols.
⚠️ Note: Broadcasting via Google Home consumes battery power Samsung A51 may be higher than usual, since video processing and data transfer over Wi-Fi require significant processor resources.
Photo and video streaming apps (DLNA)
You don't need to duplicate the entire screen to view your media library stored in your phone's memory. Protocol DLNA Allows you to transfer only specific video, music or photo files directly to your TV's media player.
There are many catalog apps available such as BubbleUPnP, LocalCast or the built-in Samsung gallery. They scan the device's memory and allow you to select a file for playback. In this case, the TV acts as a renderer, processing the video stream itself.
The advantage of this method is that you can use your phone for other tasks while the video plays on your TV. Furthermore, the picture quality is often higher, since the TV decodes the file itself rather than receiving a pre-processed video stream from the phone's screen.
- 📂 Install a player app with DLNA support, for example, VLC for Android.
- 📡 Make sure your TV is turned on and in connection standby mode.
- ▶️ Open the video file in the app and press the button
Cast(TV icon). - 📺 Select the target device from the list of detected media renderers.
Why might the video be lagging?
Lag can be caused by a slow Wi-Fi router, especially when streaming 4K content. Distance to the router and interference in the airwaves can also play a role. Try lowering the video quality or moving closer to the router.
Comparison of connection methods
The optimal method depends on your specific needs: whether you need to demonstrate an app interface or simply watch a movie. Each method has its own technical characteristics and limitations in terms of quality and latency.
The table below compares the key characteristics of the methods discussed. This will help you quickly navigate and select the appropriate option for your current situation.
| Method | Content type | Delay | Battery consumption |
|---|---|---|---|
| Smart View | Full screen | Low | High |
| Google Home | Full screen | Average | High |
| DLNA (Video) | Files | Absent | Short |
| YouTube App | Video | Absent | Minimum |
Solution and quality setting
Sometimes users encounter a situation where their phone can't detect their TV. First, check your router's firewall settings. It's also worth making sure your TV has all available system updates installed, as older software versions may have protocol compatibility issues.
If the image is delayed or shows artifacts, try lowering the output resolution. Go to Settings Smart View on your phone (three dots in the menu) and select the image quality option. Switching to "Standard" mode can significantly improve smoothness.
If your devices are completely unresponsive, reset your smartphone's network settings. Go to Settings → General Settings → Reset → Reset Network SettingsThis action will delete saved Wi-Fi passwords, but often resolves issues with discovery protocols.
⚠️ Note: The menu interface and item names may differ slightly depending on the operating system version. Android and the One UI shell installed on your Samsung A51.
Frequently Asked Questions (FAQ)
Is it possible to connect Samsung A51 to a TV without Wi-Fi?
Yes, you can use a USB-C to HDMI cable for this. However, this will require a wired connection, and wireless streaming will not work. Also, some models support USB connection for file transfer, but not for screen mirroring.
Why is there no sound when connected via Smart View?
Sound is usually transmitted automatically. If it's not, check the volume settings on your TV and make sure the app you're streaming from isn't set to "Video Only." Also, try restarting both devices.
Does phone connection affect internet speed?
When actively streaming high-resolution video (especially 4K), a significant portion of your Wi-Fi channel's bandwidth may be occupied, which can lead to a decrease in internet speed on other devices on the network.
Does the Samsung A51 support Bluetooth headphone audio streaming when streaming to TV?
In most cases, when Smart View is activated, audio switches to the TV. Simultaneously streaming audio to Bluetooth headphones and video to the TV is not possible using native tools; third-party apps or special accessibility settings are required.