How to Cast Video from Your Phone to a Samsung Smart TV via Wi-Fi: A Complete Guide

Stream video from your phone to the big screen Samsung Smart TV Connecting to a Wi-Fi network is a challenge faced by every second owner of a modern TV. It would seem simple: turn on the streaming service and watch your favorite movie or photos on a 55-inch screen. But in practice, users encounter problems: the TV doesn't recognize the phone, the video lags, or the sound cuts out. In this article, we'll look into it. all working methods wireless broadcasting, including hidden settings and how to avoid common errors.

The main difference Samsung Smart TV from other brands - our own ecosystem SmartThings and support for the proprietary protocol Smart ViewThis is both a plus and a minus: on the one hand, phone owners Samsung Galaxy connection occurs almost automatically, on the other hand, for users iPhone or devices from other brands, you have to find workarounds. We tested all methods on models Samsung QLED QN90C (2023), Crystal UHD AU8000 (2021) And The Frame LS03B (2022) — instructions are valid for TV-based Tizen OS versions 5.5 and later.

Important: If your TV was released before 2018, some features (e.g. Smart View for iOS) may be missing. In this case, pay attention to universal protocols Miracast or DLNA, which work on most devices.

Method 1: Smart View (for Samsung and Android phones)

Smart View - proprietary technology Samsung, which allows you to mirror your phone's screen to a TV without any additional apps. Works on all smartphones. Galaxy (starting from S8) and most models Smart TV 2016 and newer. The main advantage is minimal delays (up to 50 ms) and resolution support 4K@60fps on compatible devices.

To start broadcasting:

• 📱 On your phone: Swipe down on the notification bar and find the icon Smart View (or Screen mirroring on older models). If it is not there, go to Settings → Connections → Smart View.
• 📺 On your TV: Make sure it's turned on and connected to the same Wi-Fi network as your phone. In the TV menu, select Source → Screen Mirroring (or Screen Mirroring).
• 🔗 In the list of available devices on your phone, select the name of your TV (for example, UE55QN90C). Confirm the connection on both devices.

If Smart View can't find the TV., check:

• 🔄 Reboot your router - sometimes IP address conflicts can block device detection.
• 📶 Make sure your phone and TV are connected to the same network 2.4 GHz or 5 GHz (don't mix ranges!).
• 🔧 On your TV, go to Settings → General → Reset → Reset network settings and try connecting again.

Phone and TV on the same Wi-Fi network | VPN and proxy disabled on phone | Screen mirroring enabled on TV | Firmware updated on both devices -->

⚠️ Note: On some models Samsung Smart TV 2019–2020 function Smart View works unstable when connected to networks with WPA3 encryptionIf the broadcast is interrupted, temporarily switch the router to WPA2-PSK in security settings.

2. Method: Miracast (universal protocol for Android)

Miracast — is a wireless broadcasting standard supported by most Android devices (starting with version 4.2 Jelly Bean) And Samsung Smart TV 2013 and newer. Unlike Smart View, it is not tied to a brand, so it is suitable for phones Xiaomi, Huawei, Google Pixel and others. However, Miracast has two key drawbacks:

• 🐢 Video latency can reach up to 100–200 ms (critical for games).
• 📶 Requires a stable Wi-Fi signal—if the connection is weak, the image will break up into squares.

Connection instructions:

1. On TV: Open Settings → General → External devices → Screen mirroring and select Miracast.
2. On your phone: go to Settings → Connections → Screen Mirroring (or Cast on some firmware).
3. From the list of available devices, select yours Samsung Smart TV and confirm the connection.

If Miracast doesn't work:

• 🔌 Check if your phone supports Miracast. For example, Samsung Galaxy A52 and newer ones are supported, and Redmi Note 8 - No.
• 📡 Make sure your router is in wireless mode 802.11ac (5 GHz). Miracast doesn't work well on networks 802.11n (2.4 GHz).
• 🔄 Restart your phone and TV - sometimes Miracast drivers get stuck in the background.

⚠️ Attention: On some firmware versions Samsung Smart TV Miracast is disabled by default. To enable it, go to Settings → Support → Developer Mode (turned on by pressing Start → Settings → Support → About TV → Model Number 7 times) and turn on the option Wireless display.

3. Method: DLNA (for videos, photos and music)

DLNA (Digital Living Network Alliance) is a protocol for transferring media files over a local network. Unlike screen mirroring, it allows send specific files (videos, photos, music) to your TV without duplicating your phone's entire display. This is convenient for watching movies, but not suitable for gaming or streaming. YouTube/TikTok.

How to use DLNA on Samsung Smart TV:

• 📱 Install a media server application on your phone, for example:
  • BubbleUPnP (Android) - supports all formats, including MKV And FLAC.
  • Plex (Android/iOS) - convenient for large libraries.
  • VLC (Android/iOS) — plays files directly without conversion.
• 📺 Open the app on your TV Photos, videos, and music (or Media Player on older models).
• 🔍 In the list of devices, select your phone (it should appear as a media server, for example, Galaxy-S22-192.168.1.10).
• 🎬 Select a file to play. Supported formats: MP4, MKV, AVI, JPG, MP3.

Advantages of DLNA:

• ✅ No delay - video plays directly from your phone.
• ✅ Subtitles and multi-channel audio are supported (eg. DTS 5.1).
• ✅ Works even on older TVs Samsung (2012 and newer).

Flaws:

• ❌ Not all formats are supported out of the box. For example, HEVC (H.265) may not play on TVs older than 2018.
• ❌ There is no option to broadcast the entire screen (only individual files).

Method 4: YouTube and other streaming services

If you need to stream video from YouTube, Netflix or Disney+, the easiest way is to use the built-in function Cast (not to be confused with Miracast!). This method works on all phones (including iPhone) and does not require additional settings.

How to stream from YouTube:

1. Open the app YouTube on your phone and select a video.
2. Click on the icon Cast (in the upper right corner).
3. In the list of devices, select yours Samsung Smart TV.
4. The video will start playing on the TV, and the phone will turn into a remote control.

Supported services:

• 🎥 YouTube (Android/iOS)
• 🎬 Netflix (requires the latest version of the TV app)
• 🎵 Spotify (for premium users only)
• 📺 Twitch (with a delay of up to 10 seconds)

If the function Cast doesn't work:

• 🔄 Update the application on your phone and TV.
• 📶 Make sure both devices are connected to the same Wi-Fi network (not via mobile data!).
• 🔧 On your TV, go to Settings → Apps → Set default device and install YouTube as the main player.

⚠️ Note: On some models Samsung Smart TV 2020–2021 function Cast blocked if enabled in the router client isolation (AP Isolation). Disable this option in the router settings (section Wireless → Advanced).

5. Method: Third-party applications

If built-in methods don't work, third-party apps can help. They're useful for:

• 📱 Phones that do not support Miracast or Smart View.
• 🎮 Low-latency game streaming.
• 📹 Watching videos in non-standard formats (for example, AV1 or ProRes).

Top 3 Apps for Streaming Samsung Smart TV:

Instructions for ApowerMirror (the most universal option):

1. Install the application on your phone and TV (via Samsung App Store).
2. On your phone, select Mirror to TV and connect to the TV.
3. On TV, confirm the connection request.
4. Done! Now your phone screen is mirrored on your TV.

For iPhone the only reliable option is AirScreen:

• Install AirScreen to TV via Samsung App Store.
• On iPhone swipe up to call Control center and press On-screen repetition.
• Select your TV from the list.

Why do some apps require payment?

Most free versions of streaming apps (such as ApowerMirror or AirScreen) have limitations:

- Watermark on the screen.

- Session time limit (usually 5-10 minutes).

- Advertising during connection.

Paid versions ($5 to $15) remove these limitations and add 4K support, screen recording, and reduced latency.

6. Troubleshooting connection issues

If the video is not streaming or the connection keeps dropping, check the following:

• 🔌 Problem: The TV doesn't see the phone.
  • 🔹 Make sure both devices are connected to the same Wi-Fi network (not a guest network!).
  • 🔹 On your TV, go to Settings → Network → Network Status and check the IP address. It should be in the same range as the phone (for example, 192.168.1.x).
  • 🔹 Turn off the mode on your phone Saving traffic or Adaptive brightness - They can block background connections.
• 🎬 Problem: The video is lagging or falling apart.
  • 🔹 Switch the router channel 5 GHz (less interference).
  • 🔹 Reduce the broadcast resolution in the app settings (for example, with 4K to 1080p).
  • 🔹 Close background apps on your phone that consume data (for example, Telegram or TikTok).
• 🔊 Problem: There is no sound during broadcast.
  • 🔹 Check that the sound on your TV isn't muted. Settings → Sound → Output.
  • 🔹 If you use DLNA, make sure the file contains an audio track in the format AAC or MP3 (Not DTS or AC3).
  • 🔹 Restart your phone and TV - sometimes the audio driver freezes.

Critical Information: On Samsung 2022–2026 TVs with the Quantum 4K processor, the Smart View feature may conflict with ASUS routers if AI Protection mode is enabled. Disable it in the router settings (Firewall section) to stabilize the connection.

7. Optimizing broadcast quality

To ensure video streaming without lag and at maximum resolution, follow these tips:

• 📶 Router:
  • 🔹 Use Wi-Fi 6 (802.11ax) to minimize interference.
  • 🔹 Place the router closer to the TV (or use Mesh system for a big house).
  • 🔹 Enable it in your router settings Qos (Quality of Service) and set priority for devices Samsung.
• 📺 TV:
  • 🔹 Turn on the mode Game (Game Mode) in the screen settings - this reduces the delay.
  • 🔹 Disable image processing (Motion Plus, Contrast Enhancer), if you are streaming video, this reduces the load on the processor.
• 📱 Telephone:
  • 🔹 Close all background apps, especially instant messengers and social media.
  • 🔹 If you are broadcasting via DLNA, convert video to MP4 (H.264) with a bit rate no higher 20 Mbps.

To check the stability of the connection:

1. Install the application on your phone WiFi Analyzer and check the signal level near the TV (should be no lower than -60 dBm).
2. Run a speed test on the website speedtest.net — for broadcast 4K speed required is not less than 25 Mbps.
3. If the speed is low, try connecting to the TV via hotspot on the phone (turn on Modem mode in the settings).

FAQ: Frequently Asked Questions

Is it possible to stream videos from iPhone to Samsung Smart TV without Apple TV?

Yes, but with restrictions:

1. Install the application on your TV AirScreen (available in Samsung App Store).
2. On iPhone open Control center → On-screen repetition and select your TV.
3. The delay will be higher than Apple TV (near 150–200 ms).

Alternative: Use YouTube Cast or Netflix - These applications support live streaming without mirroring.

Why does video lag when streaming over Wi-Fi?

Main reasons:

• 📶 Weak Wi-Fi signal (check the distance to the router or switch to 5 GHz).
• 🖥️ The router is overloaded (disconnect other devices from the network).
• 📱 The phone is overheating and throttling performance (close background apps).
• 📺 The TV decodes video software (check if it supports it) HEVC hardware).

Solution: Reduce the broadcast resolution to 1080p or connect your phone to the TV via USB-C to HDMI adapter (for minimal delays).

How to mirror your PC (Windows) screen to Samsung Smart TV?

For Windows use:

1. Miracast: click Win + K, select your TV.
2. Steam Link: if you need to broadcast games.
3. Samsung DeX: to work with the phone as a computer (required Galaxy S8 and newer).

If Miracast is not working, update your video card drivers (especially on Intel UHD Graphics).

Is it possible to stream video from your phone to TV without Wi-Fi?

Yes, there are three options:

• 🔌 USB cable: connect your phone to TV via USB-C to HDMI adapter (need support DisplayPort Alt Mode).
• 📶 Access point: turn on Modem mode on your phone and connect your TV to it.
• 🔄 Wi-Fi Direct: some models Samsung Smart TV support direct connection without a router (included in Settings → Network → Wi-Fi Direct).

They won't work without Wi-Fi. Smart View, DLNA and streaming services.

Why does the TV say "Format not supported" when playing video?

Televisions Samsung Some codecs are not supported:

• 🚫 AV1 (used in new videos on YouTube).
• 🚫 ProRes (video from iPhone in high quality).
• 🚫 DTS:X or TrueHD (soundtracks in MKV).

Solution: Convert the video to MP4 (H.264/AAC) by using HandBrake or VLC.