Wirelessly broadcasting your smartphone screen to a large TV screen has become a standard feature of modern devices. SamsungHowever, many users encounter problems: the TV can't find the phone, the picture lags, or the sound disappears. In this article, we'll look into it. all current connection methods - from the built-in Smart View to universal protocols Miracast And DLNA, — and we will also provide clear instructions for different TV and smartphone models.
We will pay special attention to common mistakesWhy TV? Samsung QLED 2023+ may not support Miracast How to bypass restrictions on older models via Wi-Fi Direct Galaxy J-series, and what to do if the screen is delayed. At the end of the article, you'll find a device compatibility chart and answers to frequently asked questions, from sound settings to screen resolutions.
1. Preparing devices: what to check before connecting
Before you begin setup, make sure both devices meet the minimum requirements. This will save you time and avoid frustration.
Phone requirements Samsung:
- 📱 Android version: not lower
6.0 Marshmallow(ForSmart View) or4.2 Jelly Bean(ForMiracast). On Galaxy S22 Ultra and newer, advanced broadcast settings are available. - 🔋 Battery charge: At least 30%. Wireless broadcasting actively consumes energy—if the battery is low, the phone may turn off.
- 📶 Wi-Fi module: must support
Wi-Fi Direct(check inSettings → Connections → Wi-Fi → Advanced).
TV requirements:
- 📺 Model and year of manufacture: Televisions Samsung 2016 and newer (series KU, MU, Q, LS) support
Smart Viewwithout additional adapters. For older models (J, H-series) may be requiredMiracast adapter. - 🔄 Software update: Outdated firmware often causes problems. Check if it's up to date.
Settings → Support → Software Update. - 🔌 Network connection: TV and telephone must be in one Wi-Fi network (exception -
Wi-Fi Direct, where a direct connection is created).
⚠️ Attention: On TVs Samsung with the operating systemTizenversions below5.5(released before 2020) functionScreen Mirroringmay work unstably at higher screen resolutions1080pIn this case, when streaming 4K content, it is recommended to reduce the resolution in your phone settings.
2. Method 1: Smart View (Screen Mirroring) - the easiest method
Smart View - proprietary technology Samsung, optimized for devices within the same ecosystem. It ensures minimal latency and supports audio streaming. Suitable for watching videos, playing games, and presenting.
Step-by-step instructions:
Open it on your phone notification panel (swipe down from the top edge of the screen) and find the button
Smart View(the icon with the screen and waves). If it's not there, tap the "⚙️" (edit) icon and add it to the panel.Click
Smart View— the phone will start searching for available devices. Your TV should appear in the list (for example, UE55KU6000).Select your TV. A connection request will appear on the TV screen. Confirm it with the remote control (button).
OKorAllow).Done! Your phone screen will be mirrored on your TV. To stop the broadcast, press again.
Smart Viewand selectDisable.
Additional settings:
- 🔊 Sound: By default, it's streamed from your phone. To stream audio through your TV, go to the settings.
Smart ViewselectPlay sound on TV. - 🎮 Game mode: On Galaxy S21 and newer mode is available
Game Modewith reduced latency (enabled in settings)Smart View). - 🔒 Safety: To protect against accidental connections, you can enable it in the TV settings.
PIN code request(Settings → General → External devices → Screen Mirroring).
Phone and TV are on the same Wi-Fi network | Screen Mirroring is enabled on the TV | Wi-Fi and Bluetooth are enabled on the phone | Sound is not muted on the phone -->
3. Method 2: Miracast is a universal protocol for any device
Miracast — is a wireless broadcasting standard supported by most modern devices, including SamsungUnlike Smart View, it even works with TVs of other brands (LG, Sony), but may have a large delay.
How to connect:
On TV Samsung go to
Settings → General → External devices → Screen Mirroringand turn on the function.Open it on your phone
Settings → Connections → Advanced → Screen Mirroring(on some models the path may differ:Settings → Display → Screen Mirroring).Select your TV from the list of available devices. Connection may take up to 30 seconds.
If the TV is not displayed, try add a device manually through
Wi-Fi Direct(instructions in the next section).
Miracast Features:
- 🔄 Delay: On average
50–150 ms(against20–50 msatSmart View). Not suitable for dynamic games, but sufficient for videos. - 📶 Direct connection:
Miracastcreates a direct connection between devices viaWi-Fi Direct, so the Internet on the phone will not work. - 🔧 Quality settings: On some TVs Samsung You can choose the broadcast resolution (
720p,1080p) in the menuScreen Mirroring.
⚠️ Attention: On TVs Samsung series QLED 2022–2026 functionMiracastIt is disabled by default for security reasons. To enable it, go toSettings → General → Accessibility → Allow Miracastand confirm the action.
Why might Miracast not work on new Samsung TVs?
The manufacturer is gradually abandoning support for Miracast in favor of the proprietary Smart View. Starting with the model QN90C (2023)Miracast is only available through a hidden engineering menu or after a firmware rollback. For stable operation, we recommend using Smart View or an HDMI-to-Wi-Fi adapter.
4. Method 3: DLNA (AllShare) – for transferring media files
DLNA (or AllShare in older models Samsung) is intended for broadcasting specific files (photos, videos, music) rather than screen mirroring. This method is suitable if you need to show photos or a movie on TV without mirroring the entire display.
Setup instructions:
Make sure your phone and TV are connected one Wi-Fi network.
Turn on the TV
DLNA:Settings → General → External Devices → DLNA Devices.Open the app on your phone Gallery or Music, select the file and tap on the icon
Share(orAllShareon older models).Select your TV from the list of devices. The file will begin playing on the big screen.
DLNA limitations:
- 🚫 No screen mirroring: Only individual files.
- 🎵 Formats: Not all codecs are supported. For example, video in
.mkvmay not be playable. - 🔒 DRM: Protected content (eg from Netflix or Disney+) will not be broadcast.
| Method | Smart View | Miracast | DLNA |
|---|---|---|---|
| Screen mirroring | ✅ Yes | ✅ Yes | ❌ No |
| Latency (ms) | 20–50 | 50–150 | N/A |
| Internet access required | ❌ No (Wi-Fi Direct) | ❌ No | ✅ Yes |
| Sound support | ✅ Yes | ✅ Yes | ✅ For media files only |
| Compatibility with other brands | ❌ Only Samsung | ✅ Yes | ✅ Yes |
5. Troubleshooting: What to do if the connection isn't working
Even with proper setup, glitches may occur. Here the most common mistakes and ways to eliminate them:
Problem 1: TV does not appear in the list of devices
- 🔄 Restart both devices. Unplug your phone and TV for 30 seconds.
- 📶 Check your Wi-Fi. Make sure both devices are connected to the same network (or turn on
Wi-Fi Directon TV). - 🔧 Update your software. On the phone:
Settings → Software UpdateOn TV:Settings → Support → Software Update. - 🔍 Reset network settings. On the phone:
Settings → General → Reset → Reset network settings.
Problem 2: The image slows down or the sound disappears
- 📶 Reduce the resolution. In the settings
Smart Viewselect720pinstead of1080p. - 🔌 Use 5 GHz Wi-Fi. Networks
2.4 GHzare often overloaded, which causes lags. - 🔇 Check the sound on your TV. Sometimes the sound comes through the phone by default - change the source in the settings
Smart View. - 🛠️ Turn off power saving. Mode
Adaptive batterymay limit performance.
Problem 3: Connection drops after a few minutes
- ⚡ Disable automatic screen off. On the phone:
Settings → Display → Screen timeout → Never. - 🔄 Enable developer mode. Activate
Do not turn off the screen while charging(Settings → About phone → Build number- tap 7 times). - 📡 Change the Wi-Fi channel. In your router settings, select a channel with minimal interference (for example,
149For5 GHz).
⚠️ Attention: On TVs Samsung with the operating systemTizen 6.0(2021 and newer) functionScreen Mirroringmay automatically turn off after 10 minutes of inactivity. To prevent this, disable the option in the TV settings.Saving energy when mirroring(Settings → General → Power Saving).
6. Alternative methods: when standard methods don’t work
If your TV or phone does not support Smart View/Miracast, there are workarounds:
Method 1: Third-party applications
- 📱 ApowerMirror: Supports screen mirroring to TV via Wi-Fi or USB. Screen recording is also available.
- 🎮 TeamViewer QuickSupport: Allows you to control your phone from your TV (useful for presentations).
- 📺 LocalCast: An alternative to DLNA with support for more formats.
Method 2: Google Cast (Chromecast)
If you have a device Google Chromecast or built-in Google Cast on TV:
- Connect Chromecast to the TV HDMI port.
- Install the application on your phone Google Home.
- In any supported application (eg. YouTube) tap on the icon
Castand choose yours Chromecast.
Method 3: Samsung DeX
For owners of flagship models (Galaxy S8 and newer) the mode is available Samsung DeX, which transforms TV into a full-fledged desktop:
- Connect your phone to TV via
USB-C → HDMIadapter. - In the notification panel, select
Samsung DeX. - Now you can use your phone like a computer with a mouse and keyboard.
How to enable Samsung DeX without an adapter?
On TVs Samsung 2020+ with support Wi-Fi Direct You can launch DeX wirelessly:
1. Open Settings → Advanced → Samsung DeX.
2. Select Wireless DeX.
3. Connect to the TV as a monitor.
Limitation: Maximum resolution - 1920×1080 (no 4K support).
7. Connection optimization: how to reduce lag and improve quality
Even if the connection is established, the streaming quality may be poor. Here's how to improve it:
1. Setting up the router
- 📶 5 GHz band: Less interference, higher speed. In your router settings, select
80 MHzfor the channel. - 🔒 Qos (Quality of Service): Prioritize your phone's traffic in your router settings.
- 🔄 Disable the guest network. It may create conflicts when connecting.
2. Phone settings
- 🔋 Performance mode. Turn on
Maximum performancein the battery settings. - 📱 Disable background apps. They consume resources and can cause lag.
- 🔊 Video codecs. In the camera settings, select
HEVC (H.265)for better compression without loss of quality.
3. TV settings
- 📺 Picture mode. Select
GameorPCfor minimal delay. - 🔧 Turn off post-processing. Functions like
Motion PlusorContrast Enhanceradd lags. - 🔊 Sound effects. Turn it off
Surround Sound, if the sound is delayed.
⚠️ Attention: On TVs Samsung with a processorCrystal 4K(2021 models) when broadcasting viaSmart Viewcan be observed green stripe artifact at 4K/60fpsTo fix the problem, lower the resolution to1080por update your TV firmware to version1600.5and above.
8. Frequently Asked Questions (FAQ)
Is it possible to connect a Samsung phone to a TV without Wi-Fi?
Yes, there are three options:
Wi-Fi Direct: Creates a direct connection between devices without a router. Enabled in the Wi-Fi settings on your phone and TV.USB-C → HDMIAdapter: Wired connection via portUSB-C(For example, Samsung DeX).MHL adapter: For older phone models (Galaxy S5 and similar) with supportMHL.
The most stable method is wired (HDMI), but it deprives mobility.
Why is there no sound when connecting via Smart View?
Reasons and solutions:
- 🔇 Smart View Settings: In the broadcast menu, select
Play sound on TV. - 🔊 Bluetooth conflict: Disconnect all Bluetooth devices (headphones, speakers) from your phone.
- 📵 DRM content: Some applications (eg. Netflix) block HDCP audio transmission. Try playing a file from your gallery.
- 🔧 Reset settings: On TV, go to
Settings → Sound → Reset Sound.
How to mirror your iPhone's screen to a Samsung TV?
Samsung Smart View does not support iPhone, but there are alternatives:
- AirPlay: If you have a TV Samsung 2018+ with support
AirPlay 2(series Q, R, T). - Applications: ApowerMirror or TeamViewer (requires installation on both devices).
- Adapter: Apple Lightning Digital AV Adapter + cable
HDMI.
For AirPlay Both devices must be on the same Wi-Fi network.
What is the maximum resolution supported by Smart View?
Depends on the phone and TV model:
- Galaxy S20/S21/S22 + TV QLED 4K: to
3840×2160 (4K)at30 Hz. - Galaxy A-series or TV Full HD: maximum
1920×1080at60 Hz. - Old models (Galaxy S8, TV J-series):
1280×720.
To check the current broadcast resolution on your phone, open Settings → Display → Screen Resolution (during connection).
Is it possible to control your phone with your TV remote?
Partially. Functions depend on the connection method:
- Smart View: Only basic actions (pause/play in video).
- Samsung DeX: Full control with mouse/keyboard (if connected to TV).
- Miracast: No controls - just screen mirroring.
For full control, use apps like TeamViewer or ApowerMirror.