How to connect a Samsung Galaxy A51 to a TV via Wi-Fi: instructions with troubleshooting steps

Wirelessly casting your smartphone screen to a big-screen TV opens up new possibilities: from viewing photos with family to streaming videos without the hassle of wires. Samsung Galaxy A51, despite its budget positioning, supports several technologies for this connection—but not all of them work equally reliably. The main problem users have is that the TV doesn't "see" the phone or the connection constantly drops. The cause is often not the smartphone itself, but incorrect router settings or protocol incompatibility.

In this guide we will cover three working methods connections A51 to TV via Wi-Fi - from standard Smart View to alternative solutions for older TV models. We will pay special attention Setting up a Wi-Fi channel on your router (we recommend a fixed channel of 6 or 11 in the 2.4 GHz band), as automatic selection often leads to connection interruptions. You'll also learn how to bypass manufacturer restrictions and what to do if your TV doesn't support Miracast.

1. Preparation: What to check before connecting

Before you try to connect Samsung A51 With your TV, make sure both devices meet the minimum requirements. The main pitfalls lie in the smartphone's firmware version and the TV's supported wireless standards.

On Galaxy A51 must be installed at least Android 10 (original firmware) or newer. You can check the version in the menu. Settings → About phone → Android versionIf you have an older version, update the software via Settings → Software Update. On Samsung TVs from 2018 and newer, Smart View works more reliably thanks to built-in Miracast 1.3+ support.

• 📱 Smartphone: Samsung Galaxy A51 (any modification: SM-A515F, SM-A515U, etc.) with Android 10+
• 📺 TV: Any model with support Miracast, Wi-Fi Direct or Screen Mirroring (even budget ones LG, Sony Bravia, Xiaomi Mi TV)
• 📶 Router: Dual-band (2.4 GHz + 5 GHz) with support for the standard 802.11n or newer. Important: some budget routers (for example, TP-Link TL-WR840N) may not provide a stable connection for video streaming.

If your TV was released before 2016, the chances of successfully connecting via Miracast drop to 30%. In this case, you will need additional equipment: Wi-Fi adapter with Miracast support (For example, Microsoft Wireless Display Adapter or AnyCast). To check your TV's compatibility, look for any mention of features in the manual. Screen Mirroring, WiDi or AllShare Cast.

⚠️ Attention: On TVs Samsung series J (2015–2017) function Smart View can only work with devices Samsung same generation. For cross-brand connectivity, use third-party apps like ApowerMirror.

2. Method 1: Smart View (built-in Samsung function)

Smart View - proprietary technology Samsung for wireless screen sharing, which works on most modern TVs and smartphones from the brand. Its main advantage is minimal latency (up to 100 ms), which is critical for gaming or watching videos. However, for stable operation, both devices must be connected to one Wi-Fi network (or used Wi-Fi Direct).

Connection instructions:

1. Open the menu on your TV. Source (button Source on the remote control) and select Screen Mirroring (on Samsung can be called Smart View or AllShare Cast).
2. On Galaxy A51 Swipe down on the screen to open the quick settings panel and find the icon Smart View (if it is not there, add it by editing the panel).
3. Select the name of your TV from the list of available devices. If it's not there, refresh the list or check if it's turned on. Screen Mirroring on TV.
4. Confirm the connection on both devices. The TV may prompt you for a PIN code (usually 0000 or 1234).

If the connection is not established:

• 🔄 Reboot the router and both devices.
• 📶 Switch your TV and smartphone to the range 2.4 GHz (in the Wi-Fi router settings, disable 5 GHz temporarily).
• 🔒 Disable the VPN on your smartphone—it may be blocking local device detection.

TV and phone on the same Wi-Fi network | Screen Mirroring enabled on TV | Smart View added to Quick Settings panel | VPN and ad blockers disabled-->

⚠️ Attention: On some firmware versions Galaxy A51 function Smart View may disappear after an update. To restore it, reset your network settings: Settings → General Management → Reset → Reset Network Settings.

3. Method 2: Wi-Fi Direct (direct connection without a router)

Wi-Fi Direct Allows you to connect your smartphone and TV directly, without a router. This is useful if you don't have a home network or your router doesn't support the required standards. However, this method has its limitations:

• ⚡ The maximum distance between devices is 5–7 meters (as opposed to 10–15 meters when connected via a router).
• 📶 The data transfer speed is lower, lags are possible when broadcasting video in Full HD.
• 🔋 Smartphone battery drains quickly (up to 15% per hour of active streaming).

Step-by-step instructions:

1. Activate on TV Wi-Fi Direct (on the menu Network → Wi-Fi Direct or Settings → Networks → Direct Connection). Remember the network name and password (if required).
2. On Galaxy A51 go to Settings → Connections → Wi-Fi and press Wi-Fi Direct (or More → Wi-Fi Direct).
3. Find the name of your TV in the list and connect to it. When prompted, enter the password (usually 12345678 or an empty field).
4. Once connected, go back to the quick settings panel and activate Smart View — the TV should appear in the list of available devices.

If your TV doesn't appear in the list Wi-Fi Direct:

• 🔍 Make sure your TV is in discovery mode (sometimes called Visible to All).
• 📵 Disable Bluetooth on your smartphone—it may conflict with Wi-Fi Direct.
• 🔄 Restart both devices and try searching again.

4. Method 3: Streaming apps (for incompatible TVs)

If your TV does not support Miracast or Wi-Fi DirectYou can use third-party apps. They work similarly to remote desktop, but with a latency of up to 500 ms—enough for viewing photos or videos, but not for gaming. The best options are:

• 🎯 ApowerMirror - supports broadcasting to LG, Sony, Philips and even Android TV-boxThe free version adds a watermark.
• 🖥️ TeamViewer QuickSupport — doesn't require root access, but registration is required. Suitable for older TVs with Android 5.0+.
• 📱 Google Home - if you have Chromecast or TV with built-in Google TV, you can stream individual applications (YouTube, Netflix).

Instructions for ApowerMirror:

1. Install the application on Galaxy A51 and TV (if it's on Android TV). For regular TVs, download the version for Windows/Mac and connect the TV to the PC via HDMI.
2. Launch ApowerMirror on both devices and select the mode Phone Screen Mirroring.
3. On your smartphone, tap the name of your TV (or PC) in the list of available devices.
4. Confirm the connection. To reduce lag, enable the option in the app settings. Hardware Acceleration.

Third-party app limitations:

• 🚫 No support DRM-content (Netflix, Disney+ and other streaming services may block the broadcast).
• 🔊 Sound is not always transmitted - sometimes a separate connection is required Bluetooth.
• 💰 Free versions limit session time (usually 10-15 minutes).

Smart View (built-in)|ApowerMirror|TeamViewer|Google Home|Other/I don't use-->

5. Optimizing your router for stable streaming

Most connection issues Samsung A51 The TV is connected via Wi-Fi not to a smartphone, but to incorrect router settingsFor example, automatic channel selection or enabled Qos may cause delays and connection drops. Optimal broadcast settings:

• 📡 Range: 2.4 GHz (more stable for Miracast than 5 GHz).
• 🔢 Channel: Fixed 6 or 11 (less congested in urban areas).
• 🔒 Safety: WPA2-PSK with encryption AES (Not TKIP!).
• 📶 Opening hours: 802.11n (Not 802.11ac, since not all TVs support it).

How to change the settings on a router (using an example) TP-Link):

1. Open the router's web interface at 192.168.0.1 or 192.168.1.1 (login and password are usually admin).
2. Go to the section Wireless → Wireless Settings.
3. Install:

   Channel: 6 (or 11)
   Mode: 11bgn mixed
   Channel Width: 20 MHz
   Security: WPA2-PSK [AES]

4. Save the settings and reboot the router.

For routers Asus, Keenetic or Xiaomi The path to the settings may differ, but the principles are the same. If the broadcast performance deteriorates after making these changes, reset to factory settings and try a different channel (for example, 1 or 13).

Why shouldn't you use 5GHz for Miracast?

Although the 5 GHz band offers higher speeds, it has a smaller coverage area and is less effective at penetrating walls. Furthermore, many TVs (especially budget ones) only support Miracast in the 2.4 GHz band due to chipset limitations. The 5 GHz band is also more likely to experience issues with automatic channel hopping (DFS), which can lead to connection drops.

⚠️ Attention: On some routers (for example, Zyxel Keenetic) function Multimedia Network (DLNA) may conflict with MiracastDisable it in your local network settings if you experience connection problems.

6. Solving common errors

Even with the correct settings, the connection Samsung A51 Connection to the TV may be accompanied by errors. Let's look at typical scenarios and how to resolve them.

If after all manipulations the connection does not work, check:

• 🔌 Router power supply: Some models (eg D-Link DIR-300) when overheating, ports are turned off Wi-FiLet it cool for 10-15 minutes.
• 📱 Power saving mode: On Galaxy A51 turn off the mode Battery optimization for the application Smart View.
• 🔄 IP address conflict: Enable it in your router settings. DHCP or assign static IP addresses to your TV and smartphone.

7. Alternative connection methods

If wireless methods aren't an option (for example, because of an old TV or Wi-Fi issues), consider alternatives:

• 🔌 HDMI adapter: Use an adapter USB-C to HDMI (For example, Samsung EE-HG950). Supports image output in 4K@30Hz, but requires power from an outlet.
• 📶 Chromecast/Google TV: Connect Chromecast to your TV's HDMI port and stream content through apps (YouTube, Netflix).
• 🖥️ DLNA server: Install the application on your smartphone BubbleUPnP and set up media streaming to your TV.

Advantages and disadvantages of alternatives:

For USB-C to HDMI adapters on Galaxy A51 may need to be enabled Developer mode and activate the option USB debugging. Also make sure the adapter supports DisplayPort Alt Mode - without it, the image output will not work.

FAQ: Frequently Asked Questions

Is it possible to connect Samsung A51 to a TV without Wi-Fi?

Yes, there are three options:

1. Use Wi-Fi Direct (direct connection without router).
2. Connect via HDMI adapter (an adapter is required) USB-C to HDMI).
3. Use MHL cable (an outdated standard, but supported by some older TVs).

The most universal way is Wi-Fi Direct, but it does not work on all TVs.

Why is there no sound when connecting via Smart View?

This is a protocol limitation. Miracast, especially in versions below 1.3. Solutions:

• Connect external speakers or a soundbar to your TV.
• Use Bluetooth to transmit sound to a separate audio system.
• Try third party apps like ApowerMirror (in them, sound is transmitted in a separate stream).

On some TVs LG Sound is blocked due to licensing restrictions - check your settings HDMI ARC.

How to reduce lag when streaming video?

The delay depends on the connection method:

• Smart View/Miracast: Lags up to 100–200 ms. To reduce:
  • Switch the router to a channel 6 or 11 in the range 2.4 GHz.
  • Reduce your smartphone screen resolution to 720p.
  • Turn off background apps on Galaxy A51.
• Wi-Fi Direct: Lag up to 300–500 ms. There are almost no solutions—this is a protocol limitation.
• HDMI adapter: Lags are minimal (10–30 ms), but wires are required.

For gaming or watching sports it is better to use HDMI or Chromecast (if supported).

My TV doesn't support Miracast. What should I do?

There are several workarounds:

1. Buy an adapter: Devices like Microsoft Wireless Display Adapter or AnyCast add support Miracast through HDMI.
2. Use Google Chromecast: Suitable for streaming from supported apps (YouTube, Netflix).
3. Connect via PC: Install on your computer ApowerMirror or TeamViewer, and then display the image from your PC on TV HDMI.
4. DLNA server: To view photos/videos, install on your smartphone BubbleUPnP and set up streaming.

The most universal option is an adapter AnyCast (costs around 1500-2000 rubles). It even works with old TVs with HDMI.

How to connect Samsung A51 to a Samsung TV (2012-2014)?

Televisions Samsung series E, F or H (2012–2014) are often not supported MiracastConnection options:

• AllShare Cast (Samsung Link): Install the application on your smartphone Samsung Link (available in APK, since removed from Play Market). An adapter is required. Samsung AllShare Cast Dongle (hard to find on sale).
• MHL cable: Connect Galaxy A51 to TV via MHL adapter (For example, Samsung EH-MH10). Important: A51 supports MHL only in mode DisplayPort, so you need an adapter USB-C to HDMI with support DP Alt Mode.
• DLNA: To view media files, use the application BubbleUPnP and the TV's built-in DLNA server.

If nothing helps, the most reliable way is HDMI adapter with external power supply.