How to Mirror a Redmi Note 4's Screen to a TV via Wi-Fi: 5 Wireless Methods

Wirelessly broadcast your smartphone screen Xiaomi Redmi Connecting your phone to a big-screen TV opens up new possibilities for watching movies, games, and presentations. However, many users encounter problems: the connection drops, the picture lags, or the TV simply doesn't recognize the phone. In this article, we'll cover all the current connection methods. Android smartphone to TV via Wi-Fi, including hidden settings MIUI, which the manufacturer does not advertise.

Feature of the devices Redmi (unlike the flagship ones) Xiaomi or POCO) - limited support for some protocols out of the box. For example, Miracast may not be available in the menu if the phone was released before 2021. But this doesn't mean broadcasting is impossible: there are workarounds using third-party apps and alternative protocols. We tested all methods on the models Redmi Note 10/11/12, Redmi 9/10 And Redmi A1/A2 — the results are summarized in the comparative table below.

It is important to understand the difference between technologies:

• 🔄 Miracast — direct point-to-point connection without a router, but with a delay of up to 100 ms.
• 📶 DLNA — streaming media files (not the screen!) via a local network, supported even by older TVs.
• 🎯 Google Cast (Chromecast) - streaming via the cloud with minimal lag, but requires a compatible TV or set-top box.

1. Preparing your TV and phone: checking compatibility

Before attempting to connect devices, make sure they support common protocols. Redmi There are two key features:

1. MIUI version: Starting from MIUI 12.5 a built-in function appeared in phones Wireless display, but it may not be present in earlier versions. You can check the version in Settings → About phone → MIUI version.
2. Wi-Fi Direct hardware support: Budget models (Redmi 8A, Redmi 9C) are often deprived of this module, which blocks Miracast.

On the TV side you need:

• 📺 Smart TV on Android TV, Tizen (Samsung), webOS (LG) or with support Screen Mirroring.
• 🔌 Connect to the same Wi-Fi network as your phone (for DLNA/Google Cast).
• 🔄 Enabled mode Wi-Fi Direct or Miracast (called differently: at Samsung — Smart View, at LG — Screen Share).

How to check Miracast support on Redmi?

Open Settings → Connections and Sharing → Wireless DisplayIf there is no such item, your model does not support the protocol at the software level. In this case, only third-party software or a hardware adapter (e.g., Mi TV Stick).

If your TV was released before 2018 and does not have Smart functions, you will need an external device:

⚠️ AttentionOn TVs Sony Bravia 2019–2020 release function Screen Mirroring may be disabled in the factory settings. To activate it, go to Settings → Network → Home Network → Enable Screen Mirroring.

2. Method 1: Wireless display (Miracast) without a router

This is the most universal method for Redmi, but it only works if both devices support Wi-Fi DirectThe advantage is that no local network is required; the connection is established directly.

Step-by-step instructions:

1. Activate the mode on your TV Screen Mirroring (at Samsung — Smart View, at LG — Screen Share).
2. On Redmi open Settings → Connections and Sharing → Wireless Display.
3. Select the name of your TV from the list of available devices. If it is not there, click Refresh or restart Wi-Fi on both devices.
4. Confirm the connection on TV (you may be asked to enter a PIN code).

The TV and phone are charged to more than 30% | Both devices are within a 5-meter radius | Power saving mode is disabled on the phone | Wi-Fi is enabled on the TV (even if a router is not used)

-->

If on the menu Redmi no item Wireless display, try an alternative route:

1. Expand the notification panel and hold the icon Wi-Fi.
2. Go to More → Wi-Fi Direct.
3. Turn on the device search and select the TV from the list.

⚠️ Attention: On Redmi Note 8/9 With MIUI 11 function Miracast may be hidden. To unlock it, install the app Miracast Shortcut from Google Play and start a broadcast through it.

A critical feature for gamers: when connecting via Miracast, the input delay (lag) is 80-120 ms, which makes the method unsuitable for dynamic games (for example, PUBG Mobile or Call of Duty). This isn't critical for streaming videos or viewing photos.

3. Method 2: Google Cast (Chromecast) for content streaming

This method is suitable for broadcasting specific applications (YouTube, Netflix, browser) on TV with Google Chromecast or built-in support Google CastUnlike Miracast, it doesn't transmit the entire screen, but only the content of the supported app. This reduces network load and reduces latency to 50–80 ms.

How to set up:

• 📱 Make sure that on Redmi the application is installed Google Home (download in Play Market).
• 🖥️ Connect Chromecast to the TV and set it up through Google Home (follow the instructions on the screen).
• 🔗 Make sure your phone and Chromecast connected to the same Wi-Fi network.
• 🎬 In a supported app (e.g. YouTube) Click on the broadcast icon (rectangle with Wi-Fi in the upper right corner) and select your Chromecast.

List of applications that support Google Cast:

• 🎥 YouTube, Netflix, Disney+
• 🎵 Spotify, Yandex Music
• 🌐 Google Chrome (tab broadcast)
• 📱 Google Photos (slide show)

For broadcast entire screen (and not just applications) through Chromecast:

1. Open Google Home.
2. Choose yours Chromecast → Broadcast screen/audio → Screencasting.
3. Confirm the start of the broadcast (the delay will be higher - up to 150 ms).

⚠️ Attention: On Redmi With MIUI 13+ an error may occur "Unable to connect to device" when broadcasting a screen via ChromecastSolution: Disable your VPN (if used) and make sure it is enabled on your phone. Developer Mode → Wi-Fi Debugging.

4. Method 3: DLNA for playing media files

DLNA - This is not screencasting, but streaming photos, videos and music From your phone to your TV via a local network. This method works even on older TVs (2012–2017), but isn't suitable for gaming or showing presentations.

How to enable on Redmi:

1. Make sure your phone and TV are connected to the same router.
2. On Redmi open Settings → Connections and Sharing → File Transfer.
3. Enable the option Media server (DLNA).
4. On your TV, open a media viewing app (e.g. SmartShare on LG or AllShare on Samsung) and select yours Redmi from the list of devices.

If there is no built-in media server, install one of these applications:

• 📁 BubbleUPnP — supports format transcoding.
• 🎵 LocalCast - convenient for music and playlists.
• 🎬 VLC — streams video without re-encoding.

DLNA limitations:

• ❌ Does not transfer phone screen (only files).
• ❌ Not all video formats are supported (for example, .mkv may not be playable).
• ❌ Delay when scrolling video up to 2 seconds.

5. Method 4: Screen mirroring apps

When built-in features don't work, third-party apps can help. We tested five popular solutions—the results are in the table below.

Instructions for ApowerMirror (recommended):

1. Install the application on Redmi and TV (if your TV doesn't have Play Market, download the APK from the official website).
2. Connect both devices to the same Wi-Fi network.
3. Launch it on your phone ApowerMirror and select Mirroring → Connect to TV.
4. On the TV, confirm the connection.

For LetsView (alternative without a router):

1. Turn on the TV Wi-Fi Direct.
2. In the appendix LetsView on your phone, select Without a router.
3. The scanner will find the TV - connect to it.

⚠️ Attention: Apps like TeamViewer QuickSupport They transmit images via the cloud, which creates a latency of up to 300 ms and the risk of data leakage. Use them only if other methods are unavailable.

6. Troubleshooting: lags, connection breaks, no sound

Even with proper setup, glitches can still occur. Here are common errors and their solutions:

• 🔌 The TV doesn't see the phone.:
  • Reboot the router and both devices.
  • Check that the phone is turned on Visibility mode in the Wi-Fi Direct settings.
  • Update your TV's firmware (on Samsung this is done through Settings → Support → Software Update).
• 🎮 Lag when playing games:
  • Use Google Cast instead of Miracast (lag ~50 ms versus 100 ms).
  • Connect the router to your phone via cable (if supported) USB Ethernet).
  • Enable it in your router settings. Qos (Quality of Service) and set the priority for the device Redmi.
• 🔇 No sound during broadcast:
  • Check if your phone is on silent mode.
  • In the broadcast settings (for example, in ApowerMirror) select Transmit sound.
  • For DLNA The sound can be transmitted separately - turn it on in the player on the TV.

If the problem is in the router:

• 📶 Switch to range 5 GHz (less interference, higher speed).
• 🔄 Change the Wi-Fi channel in your router settings (optimal channels for 2.4 GHz: 1, 6, 11).
• 🚫 Turn off the feature Wi-Fi energy saving on the phone (Settings → Battery → Power saving mode → Off).

Why does the image lag when connected via Miracast?

The reason is video stream compression. Miracast uses a codec H.264 with a bitrate of up to 10 Mbps. If the router is weak or there is interference, the picture begins to "fall apart." Solution: connect directly (without a router) or reduce the phone's screen resolution to 720p in the developer settings.

7. Alternative options: cable and adapters

If your Wi-Fi connection is unstable, consider wired options:

• 🔌 USB-C → HDMI:
  • Suitable for Redmi Note 10/11/12 with support DisplayPort Alt Mode.
  • An adapter is needed (for example, Baseus USB-C to HDMI, ~1 500 ₽).
  • Latency: 0ms (ideal for gaming).
• 📱 MHL adapter:
  • Works with old ones Redmi (until 2020) via microUSB.
  • Requires power from the TV's USB port.

To check support DisplayPort Alt Mode:

1. Connect the adapter to your phone.
2. If a request to select a signal source appears on the screen, the function is supported.
3. If not, the adapter will not work (need MHL).

Advantages of a wired connection:

• ✅ Zero lag (critical for gaming).
• ✅ Stable image without artifacts.
• ✅ Works even without the Internet.

⚠️ Attention: On Redmi 9/9A/9C The USB-C port does not support video output - only MHL to microUSB adapter (if the model has microUSB) or wireless methods.

FAQ: Frequently asked questions about connecting Redmi to TV

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

Yes, there are three options:

1. Wi-Fi Direct (direct connection without a router, works with Miracast).
2. USB cable (USB-C/HDMI or MHL adapter required).
3. Bluetooth (only for photo/music transfer, no video).

For a full screen broadcast without lags, it is better to use Wi-Fi Direct or cable.

Why is there no Wireless Display feature on Redmi Note 8?

On Redmi Note 8 With MIUI 11 function Miracast hidden. To activate it:

1. Install the application Miracast Shortcut from Play Market.
2. Run it and select Wireless Display.
3. If it doesn't work, update the firmware to MIUI 12+.

Alternative: Use an app ApowerMirror or LetsView.

How to reduce latency when streaming games?

Minimum lag (~50 ms) gives Google Cast through ChromecastOther methods:

• Connect via cable (USB-C → HDMI).
• Turn it on in your router Qos and set the priority for Redmi.
• Use a router with support Wi-Fi 6 (For example, Xiaomi AX3600).
• Reduce your phone's screen resolution to 720p in the developer settings.

Miracast Not suitable for gaming - latency will always be higher than 80 ms.

What should I do if my TV doesn't support Miracast?

Solution options:

• Buy an external adapter (Mi TV Stick, AnyCast).
• Use Google Cast (needed) Chromecast or TV with Android TV).
• Connect via DLNA (for media files only).
• Use a cable (HDMI or MHL).

Suitable for older TVs (without HDMI) AV adapter with a connector RCA (tulips), but the quality will be low.

How to mirror Redmi screen to Samsung TV?

Instructions for Samsung Smart TV:

1. On TV: Source → Screen Mirroring (or Smart View).
2. On Redmi: Settings → Connections → Wireless Display.
3. Choose yours Samsung TV from the list.
4. Confirm the connection on TV (a PIN code may be required).

If it doesn't find the device:

• Update your TV firmware (Settings → Support → Software Update).
• Turn it off on your phone Adaptive Wi-Fi (Settings → Wi-Fi → Advanced).