Modern smartphones such as Samsung Galaxy A51, have powerful screens, but sometimes you want to use a larger TV screen to view photos, videos, or games. Luckily, the ecosystem Samsung It allows you to easily stream images wirelessly, eliminating the need to fumble for HDMI cables. This is especially convenient when you need to share a presentation with colleagues or play a movie from the internet in full screen.
The main tool for this is technology Smart View, built into the shell One UIIt's based on the Miracast and DLNA standards, ensuring stable high-definition video streaming. However, to ensure a smooth process, several configuration details for the router and devices themselves must be taken into account. In this article, we'll cover all the steps in detail.
Before you begin setting up, make sure both devices—your smartphone and TV—are connected to the same Wi-Fi network. key condition to help devices discover each other. If your router supports dual-band mode (2.4 GHz and 5 GHz), it's better to use the 5 GHz band for transmitting high-definition video, as it provides higher throughput.
Preparatory stage: checking the network and updates
A successful connection directly depends on the software status. On TVs Samsung Smart TV Updates are frequently released to improve the stability of wireless modules. Go to the TV menu, select Settings → Support → Software Update and check for new versions. Ignoring this step may cause older protocols to conflict with newer Android versions.
On a smartphone Samsung A51 It's also worth checking that the system is up to date. Open Settings → Software Update → Download and InstallAlso, make sure Wi-Fi is enabled and your phone isn't in power-saving mode, which can limit background network activity. Sometimes, simply rebooting your router can resolve temporary issues with IP address allocation.
It is important to understand the difference between simply connecting to Wi-Fi and using the feature Wi-Fi DirectIn most cases, Smart View requires both devices to be on the same local network. However, if your router has AP Isolation, the devices won't see each other. In this case, you'll need to disable this feature on your router.
Using Smart View to cast your screen
The fastest way to display an image is to use the built-in function Smart ViewIt allows you to mirror your smartphone screen in real time. To get started, unlock your Samsung A51 and pull down the top menu bar twice to open the full list of quick settings. Find the icon labeled "Smart View" or "Cast."
Once pressed, the phone will begin searching for available devices on the network. Once your TV appears on the list Samsung, tap it. A confirmation message may appear on the TV screen—select "Allow" using the remote. The image from your phone will instantly appear on the big screen.
- 📱 Open the quick settings panel on the Samsung A51 by swiping down.
- 📡 Click on the icon Smart View to start the search.
- 📺 Select your TV from the list of available devices.
- ✅ Confirm the connection on the TV screen if required.
While streaming, you can rotate your phone to landscape mode, and the image on your TV will also be rotated. If the image doesn't fill the entire screen, use the "Full Screen" button in the streaming control menu on your smartphone. Image quality depends on the strength of your Wi-Fi signal; in cases of heavy interference, a slight delay may occur.
Setup via the Samsung SmartThings app
To achieve deeper integration between smartphone and TV, the company Samsung developed an application SmartThingsIt comes pre-installed on most devices of the brand, but if it is not, download it from Google PlayThis app not only allows you to mirror your screen, but also use your phone as a remote control, transfer files, and control your smart home.
Launch the app and log in to your account Samsung AccountClick the "Add Device" button. The app will automatically scan the network and prompt you to add your TV. Once paired, your TV's card will appear in the interface. Clicking it will grant you access to controls. To share your screen, select "Cast Screen" in the device control menu.
⚠️ Attention: When connecting for the first time via SmartThings, your TV may request a PIN code. The code is displayed on the TV screen and must be entered on your smartphone. This is a security measure to prevent unauthorized access to your TV.
Advantage of using SmartThings The app's advantage lies in its background operation. You can start a video, minimize the app, and use other phone functions without interrupting playback. The app also allows you to stream media files (photos, videos, music) directly to the TV's media player, reducing the load on your smartphone's processor compared to full mirroring.
Stream content from YouTube and other apps
The function deserves special attention Cast (Broadcast) built into many popular apps such as YouTube, Netflix, IVIUnlike Smart View, the phone only acts as a remote control, and the TV downloads the video stream directly from the internet. This significantly saves battery life and reduces the load on the Wi-Fi network.
To use this feature, open, for example, YouTube On your smartphone. In the top corner of the video or in the app interface, look for the rectangle with waves (the broadcast icon). Tap it and select your TV. Samsung from the list. The video will start playing on your TV, and the playback control panel will appear on your phone screen.
☑️ Pre-broadcast check
If the cast icon doesn't appear or is grayed out, check if you're logged into the TV app with the same account as your phone. While this isn't always necessary, syncing your accounts Google It often speeds up device searches and allows you to save your viewing history. Also, make sure the app version on your TV is up-to-date.
AirPlay 2 support on Samsung TVs
Owners Samsung A51Those who previously used iPhones may be surprised, but modern TVs Samsung support the protocol AirPlay 2While the A51 runs Android, there are third-party apps that emulate this protocol, or you can use the system's native capabilities if your TV supports standard streaming protocols.
However, AirPlay isn't the primary use case for connecting an Android smartphone to a Samsung TV. In this case, the technology works much more effectively. DLNA or built-in Smart ViewHowever, if you're using a media server on a PC or NAS, AirPlay 2 support on your TV will allow you to stream content from various Apple ecosystem devices you have in your home.
| Connection method | Image quality | Latency | Battery consumption |
|---|---|---|---|
| Smart View (Mirroring) | High (Full HD) | Medium/High | High |
| YouTube Cast (Online) | Maximum (4K HDR) | Low | Short |
| SmartThings (Files) | Depends on the file | Low | Average |
| USB-C to HDMI cable | Ideal | Absent | Charging is in progress |
It is worth noting that Samsung A51 The USB-C port does not support video output in DisplayPort Alt Mode. This means that connecting via a simple USB-C to HDMI adapter will not work. A wired connection would require special adapters supporting DisplayLink technology, which utilize software compression, but these are expensive and difficult to set up.
Why might wireless charging not work when connected to a TV?
If you're using wireless charging while streaming heavy content, your phone may overheat. The protection system will limit the Wi-Fi module's performance, resulting in lag.
Solution: If the TV doesn't see the phone
The most common issue is that the devices are on different subnets. This happens if you have a dual-band router, and your phone is connected to the 5 GHz band and your TV to the 2.4 GHz band, but client isolation or a guest network is enabled on the router. Make sure both devices are connected to the primary network SSID. You can check this in the router settings or by looking at the IP addresses: the first three numbers of the address (e.g., 192.168.1.xxx) should match.
Another reason could be an outdated Wi-Fi security protocol. If your router is configured to only WPA3If your TV is an older model, it may not see the network or connect correctly. Try setting WPA2/WPA3 mixed mode in your router settings. Also, your phone's antivirus or router's firewall may be blocking local device discovery (UPnP).
⚠️ Attention: Samsung TV menu interfaces may vary depending on the year of manufacture and Tizen OS version. If you don't find the option, use the settings search (the magnifying glass button in the menu) and enter "connection" or "casting."
If nothing helps, try resetting the network settings on your TV. Go to Settings → General → Network → Reset network settingsAfter this, re-enter your Wi-Fi password. On your phone, it's also helpful to select your Wi-Fi network and tap "Forget," then reconnect. This will clear old configuration files that may have accumulated errors.
Frequently Asked Questions (FAQ)
Is it possible to connect Samsung A51 to a TV without Wi-Fi?
Yes, but the capabilities will be limited. You can use a USB-C to HDMI cable, but as mentioned earlier, the A51 doesn't support direct video output. An alternative is to create a Wi-Fi hotspot on one of the devices, but this will increase data usage and battery life. The best option without home Wi-Fi is to use Wi-Fi Direct, if supported by the specific photo sharing app.
Why does the video jerk or stutter when streaming?
This is a sign of a weak Wi-Fi signal or congestion. Try moving closer to the router and disable downloads on other devices connected to the network. Also, check if there are any heavy apps running in the background that are consuming internet. Lowering the video resolution in the source app's settings may also help.
Is the sound transmitted to the TV?
Yes, when using the function Smart View or Cast The sound automatically switches to the TV's audio system. If the sound remains on your phone, check your Bluetooth settings (to prevent sound from going to your headphones) and ensure the correct audio output device is selected in the app.
Is it safe to leave your phone connected to your TV?
Yes, it's safe. However, your phone may become hot when mirroring your screen for an extended period. It's recommended to remove the case for better cooling and place the device on a hard surface. Also, make sure notifications and incoming calls aren't broadcast on your TV if you're watching a movie with others. Smart View offers Do Not Disturb mode or the ability to hide notifications.