Duplicating a smartphone screen to an external monitor or TV is a function that turns an Android device into a full-fledged media center. But finding it in the settings is not always easy: manufacturers hide the option under different names, and in some firmware it is completely absent without additional manipulations. This article will help you figure out where exactly to look for screen duplication on your Android smartphone, regardless of the brand and version of the operating system.

We will look at not only standard paths through Settings → Connected devices, but also alternative methods: from using Google Cast to activation of hidden modes via ADB. We will pay special attention to common problems - why the phone does not see the TV, how to fix the image delay and what to do if the sound is transmitted but the picture is not. If you have ever encountered the message "The device does not support Miracast" or "Could not connect to screen", here you will find solutions.

Important: duplication capabilities depend on the Android version, smartphone model and firmware. For example, on Samsung Galaxy s One UI 6.0 the path to the settings is different from Xiaomi on HyperOSs. And owners of devices with custom firmware (for example, LineageOS) may need to manually install drivers. But first things first.

1. Standard method: where to look for screen mirroring in Android settings

On most modern smartphones, the screen mirroring function is hidden in the menu wireless connections. However, its location varies depending on the shell. Here is a universal search algorithm:

  • 📱 Stock Android (Pixel, Motorola, Nokia): Settings → Connected devices → Connection settings → Broadcast or Screen sharing.
  • 🌐 Samsung One UI: Settings → Connections → Advanced settings → Smart View (in older versions - Screen Mirroring).
  • ⚡ Xiaomi HyperOS/MIUI: Settings → Connection and sharing → Broadcast (Cast) or Wireless display.
  • 🤖 Realme/OPPO ColorOS: Settings → Other wireless connections → Screen casting.

If your phone does not have a "Cast" or "Duplicating" option, try using quick settings panelSwipe down from the top edge of the screen twice. (to expand the full panel) and find the icon with the name Smart View, Cast, Screen Mirroring or Wireless Display. On some devices you need to add it manually - to do this, click on the pencil icon (✏️) in the upper right corner of the panel.

📊 What is your brand? smartphone?
Samsung
Xiaomi
Google Pixel
Realme/OPPO
Other

Important nuance: on Android 12 and later, the duplication function can be combined with Google Cast (for transfer to Chromecast or TVs that support Google TVIf your TV is not compatible with Miracast (wireless duplication standard), the system will automatically suggest alternative protocols - but this does not work on all devices.

⚠️ Attention: On some smartphones (for example, Huawei s EMUI or Honor) function Screen duplication may be blocked due to manufacturer restrictions. In this case, you will need to use third-party applications or ADB commands (more on this below).

2. Alternative methods: if the standard method does not work

What to do if there is no "Screen cast" item in the settings, and the quick settings panel does not contain the required icon? Here 3 proven methods:

2.1. Using Google Cast (for TVs with Android TV or Chromecast)

If your TV supports Google Cast (for example, models with Android TV or devices Chromecast), duplication can be started through the app Google Home:

  1. Install Google Home from Play Market.
  2. Connect your phone and TV to the same Wi-Fi network.
  3. Open the application, select your TV in the list of devices.
  4. Click Cast my screen.

2.2. Enabling Miracast hidden mode via ADB

On some devices (especially with custom firmware) the duplication function disabled by default. To activate it:

  1. Enable Developer mode (click on Build number 7 times in Settings → About phone).
  2. Activate USB debugging in the developer menu.
  3. Connect the phone to the PC and run the command: 
    adb shell settings put global wireless_display_certification on
  4. Reboot the device.

After this, the item will appear in the settings Wireless display.

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If after executing the ADB command the function does not appear, try also enabling the option Force Wireless Display via command 

adb shell settings put global force_wireless_display true

2.3. Third-party applications for duplication

If the built-in tools do not work, you can use third-party utilities. The best options:

  • 📺 ApowerMirror - supports both wireless and wired duplication (via USB).
  • 🔄 Screen Mirroring (from LetsView) - works with most TVs LG, Samsung and Sony.
  • 🖥️ TeamViewer QuickSupport - allows you to broadcast the screen to a PC or another smartphone.
⚠️ Attention: When using third-party screen mirroring applications, avoid apps with suspicious permissions (for example, access to SMS or contacts Before installation, check the reviews and ratings in Play Market.

3. Problems with screen duplication and their solutions

Even if you have found the duplication function, the connection may not work due to technical limitations. Here are the most common ones. errors and ways to fix them:

Problem Possible cause Solution
"The device does not support Miracast" The TV or smartphone is not compatible with the standard Miracast. Use Google Cast or a wired connection via USB-C → HDMI.
Image delay (lag) Weak Wi-Fi signal or network congestion. Connect to a 5 GHz network or use a wired connection.
No sound during duplication Audio output settings have been reset to the phone. In the notification panel, select Transfer sound to [TV name].
"Failed to connect to screen" A firewall or VPN is blocking the connection. Turn off the VPN and temporarily turn off the firewall.

Critical information: On devices with Android 14 and later, screen mirroring via Miracast may require additional confirmation of permission to transfer data. If after connecting the phone screen goes dark or the broadcast is interrupted, check the power saving settings - some firmware (for example, MIUI) aggressively close background processes.

Why does duplication only work in some applications?

Some applications (for example, Netflix or Disney+) block the screen broadcast due to DRM protection. In this case, the image on the TV will be black, but the sound may continue to be transmitted.

1. Use the official application for Smart TV (if available).

2. Connect your phone via HDMI via an adapter (DRM bypass). data-i="152">4. Duplicating the screen via cable: when Wi-Fi is not an option

4. Screen mirroring via cable: when Wi-Fi is not an option

If a wireless connection is not possible (for example, due to lack of support Miracast or a weak Wi-Fi signal), you can use wire duplication via an adapter. data-i="156">wired duplication

  • 🔌 Adapter USB-C → HDMI (for modern smartphones) or Micro-USB → HDMI (for older models).
  • 📺 Cable HDMI (usually goes to complete with adapter).
  • 🔋 Power source for the adapter (some models require additional USB power).

Step-by-step guide:

  1. Connect the adapter to your smartphone.
  2. Connect the adapter to the TV via HDMI.
  3. On the TV, select the signal source HDMI.
  4. On the phone, you may need to confirm the connection in the window that appears.

Advantages of a wired connection:

  • ⚡ No delay (unlike Wi-Fi).
  • 🔒 Works on all devices, even without support Miracast.
  • 🎮 Suitable for games and high-definition videos (4K/60fps).
⚠️ Attention: Not all adapters USB-C → HDMI support image output. Cheap models can only work for charging. Before purchasing, check compatibility with your smartphone model (for example, adapters for Samsung DeX are not always suitable for simple duplication).

Smartphone manufacturers often modify standard Android functions, adding their own features or restrictions. Let's look at key differences for top brands:

5.1. Samsung (One UI)

On devices Samsung screen duplication is called Smart View. Features:

  • 🔄 Supports Miracast and Google Cast in one menu.
  • 🎮 Can be broadcast only screen or screen + sound.
  • 📱 In some models (for example, Galaxy S23 Ultra) the mode DeX is available - a full-fledged desktop on the TV.

5.2. Xiaomi (HyperOS/MIUI)

On Xiaomi function is called Broadcast (Cast) or Wireless display. Important nuances:

  • 🔒 Some firmware requires permission to display on top of others windows for duplication applications.
  • 📶 In HyperOS added support Miracast Direct —connection without a router (point-to-point).
  • ⚠️ On budget models (for example, Redmi Note) may be absent support 1080p for duplication.

5.3. Google Pixel (stock Android)

On Pixel duplication is implemented via Google Cast. Features:

  • 🔍 There is no separate "Miracast" item - everything works through Google Home.
  • 🎵 Sound is transmitted automatically, but it can be turned off in the broadcast settings.
  • 🔄 Supported duplication in 4K (starting from Pixel 6).

Make sure that the phone and TV are connected to the same Wi-Fi network

Check Miracast support on the TV (in the network settings)

Update your smartphone firmware to the latest version

Disable VPN and firewall

Charge your phone at least 30% (duplicating uses up the battery)

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6. Screen mirroring for games: how to reduce latency

If you want to stream mobile games to a large screen, normal duplication via Miracast or Google Cast can cause a noticeable delay (input lag). To reduce the lag:

  • 🎮 Use wired connection via USB-C → HDMI adapter.
  • 📶 Connect to the router via 5 GHz Wi-Fi (not 2.4 GHz).
  • 🔧 In the developer settings, enable Disable absolute volume (reduces audio latency).
  • 🔄 Install resolution of duplication to 720p instead of 1080p (less data = less lag).

For competitions or streams, it is better to use specialized solutions:

  • 🖥️ Steam Link - broadcasts games from your phone on a PC or TV with minimal lag.
  • 🎮 Moonlight — allows you to play PC games via streaming to your phone (reverse stream).
  • 📱 Parsec — cloud gaming with controller support.
⚠️ Attention: When duplicating games via Miracast image artifacts (tearing, stuttering) may occur. This is due to the fact that the protocol is not optimized for dynamic content. For better results, use USB-C → HDMI an adapter that supports Game Mode.

7. Security when duplicating the screen: what you need to know

Broadcasting the screen to external devices can pose privacy risk. Here's what you should consider:

  • 🔒 Avoid public Wi-Fi networks when duplicating - attackers can intercept traffic.
  • 📱 Turn off broadcastwhen it is not needed (in the notification panel, click Disable).
  • 🔍 Check application permissionsrequesting access to screen mirroring.
  • 📵 Set up lock screen —if the phone is connected to a TV in a public place, anyone can see your notifications.

On devices with Android 13+ a function has appeared Private duplication (Private Mirroring). It allows you to:

  • Hide notifications during broadcast.
  • Block the output of certain applications (for example, instant messengers).
  • Mute the microphone during dubbing.

To enable private mode:

  1. Go to Settings → System → Advanced → Private mirroring.
  2. Select applications that should not be displayed on the external screen.
  3. Activate the option Hide notifications.
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Always check what data is being broadcast to the external screen Even if you can’t see it. notifications, they can be displayed in the background.

FAQ: Frequently asked questions about screen mirroring on Android

🔍 Why doesn’t my phone see the TV when I try to mirror?

There may be several reasons:

  • The TV does not support Miracast (check in the TV network settings).
  • The devices are connected to different Wi-Fi networks (must be the same network).
  • The phone has power saving mode enabled (turn it off).
  • A firewall or VPN is blocking the connection.

Solution: try connecting via Google Cast (if your TV supports it) or use a wired adapter.

🎵 Why is there no sound when duplicating?

Check this:

  • In the notification panel, click on the broadcast notification and select Transfer sound to [TV name].
  • Make sure that the sound is not muted on the TV (press the button Mute on the remote control).
  • If you use HDMI adapter, check if it supports audio transmission (some cheap adapters only output video).
📱 Is it possible to duplicate the screen on a laptop or PC?

Yes, there are several ways:

  • Via Google Cast (if a browser is installed on the PC Chrome with extension Google Cast).
  • Using applications like ApowerMirror or LetsView (installation of software on the PC is required).
  • Via USB debugging and apps like scrcpy (you will need skills in working with ADB).

For minimal latency it is better to use scrcpy (wired connection).

🔌 How to duplicate screen if the phone's USB port is broken?

If a wired connection is not possible, wireless options remain:

  • Use Miracast or Google Cast (if the TV supports).
  • Connect via Bluetooth + Wi-Fi Direct (some TVs Samsung support this mode).
  • Use wireless HDMI transmitter (for example, Anycast).

If the phone screen does not work, but the device itself turns on, you can try to control duplication via voice assistant (for example, Okay Google, turn on screen broadcast).

🔒 Is it possible to duplicate the screen without connecting to Wi-Fi?

Yes, there are two ways:

  1. Miracast Direct (Wi-Fi Direct): some TVs (for example, LG or Sony Bravia) support direct connection without a router. In the TV settings, turn on Wi-Fi Direct and connect to it from your phone.
  2. USB-C → HDMI adapter: a wired connection does not require a Wi-Fi network.

Limitation: in mode Wi-Fi Direct the phone will not have access to the Internet.