How to transfer video from Xiaomi Redmi 9 to TV over Wi-Fi: all working methods

You want to watch movies, photos or games with Xiaomi Redmi 9 on a big TV screen, but don’t know how to do it wirelessly? Wireless video transmission over Wi-Fi is a convenient way to duplicate your smartphone screen or stream individual files on TV. In this article, we will analyze all the current methods for screen projection and media streaming from Redmi 9 to TVs of different brands - from Xiaomi Mi. TV before Samsung or LG.

The main advantages of Wi-Fi broadcasting: the absence of unnecessary cables, the ability to control playback from a smartphone and support for most modern Smart TV. However, not all methods are equally stable – somewhere you will need additional software, and somewhere there are enough built-in functions. MIUI. We tested every method on Redmi. 9 (model M2003J15SC/M2004J19C) And we put together step-by-step instructions for typical errors.

Important: If your TV doesn’t support smart features (e.g., older models with only a connector) HDMI), You will need an external adapter type Mi TV Stick or Google Chromecast, we will talk about it below.

1. Compatibility Check: What it takes to transfer video over Wi-Fi

Before you set up a connection, make sure your equipment meets the minimum requirements.

• 📱 Smartphone: Xiaomi Redmi 9 on MIUI 12+ (Android 10+). Previous versions may not have built-in Miracast or Google Cast features.
• 📺 Television: Smart TV Miracast (Wireless Screen Transmission Standard) or DLNA/Google Cast (for streaming video) Brands: Xiaomi, Samsung (2016+), LG (webOS 3.0+), Sony Bravia (Android TV).
• 🔄 Network: Both devices must be connected to the same Wi-Fi network (2.4 GHz or 5 GHz frequency.
• 🔋 Battery charge: When broadcasting the screen, the smartphone discharges 2-3 times faster. The recommended charge level is at least 50%.

If the TV does not support Smart-functions, use external devices:

⚠️ Attention: Redmi 9 with firmware MIUI Global may not have the Wireless Display option in the menu, in which case upgrade to the latest version or use alternative methods (section 4).

2. Method 1: Duplication of screen via Miracast (built-in function)

Miracast is a wireless screen transmission standard supported by most modern Smart devices. TV. Redmi 9 features built-in, but the location depends on the version MIUI.

Instructions:

1. Open the settings on your smartphone → Connections and sharing → Wireless display (or Cast in newer versions).
2. Activate the Wireless Display slider, and you'll start looking for available devices.
3. In the list, select the name of your TV (for example, MiTV-ABC123 or Samsung-UE55).
4. Confirm the connection on both devices, and the TV screen will display a duplicate of the smartphone interface.

Features of the method:

• 🔄 Image delay: ~100–200 ms (notable in games, but not critical for video).
• 📶 Quality: up to 1080p stable Wi-Fi (5GHz better than 2.4GHz).
• 🔊 The sound is transmitted automatically, but may lag behind the video (solved by setting up synchronization in TV).

Connect your TV and smartphone to a single Wi-Fi network

Update the firmware on Redmi 9 to MIUI 12+

Disable VPN or proxy on your smartphone

Make sure that Miracast mode is on TV (in screen settings)-->

⚠️ Note: If the TV doesn't appear in the list of devices, check if Screen Mirroring (or Wi-Fi Direct) is enabled in its settings. On Samsung, this menu may be called Smart View, on the other hand, the "Smart View" menu is not available. LG — Screen Share.

3. Method 2: Streaming video through DLNA

DLNA — It's a protocol for transmitting media files (video, photos, music) over a local network, and unlike Miracast, it doesn't duplicate the screen, it only broadcasts selected files, and it's suitable for watching movies or photos without loading on your smartphone.

How to set up:

1. Make sure it's on the TV. DLNA-server (in network settings or multimedia).
2. On Redmi 9, install the Mi File Manager app (built-in) MIUI) or third-party, such as BubbleUPnP.
3. Open the file manager, find a video / photo → press Send. → choose DLNA-device (your TV).
4. Playback will start on the TV, and control remains on the smartphone.

Advantages of DLNA:

• 🎬 Supports formats: MP4, MKV, AVI, JPG, PNG.
• 📡 Does not load the processor of the smartphone (unlike the duplicate screen).
• 🔄 You can create a playlist and control it from your phone.

Disadvantages:

• ❌ No support. 4K or HDR (full HD).
• ❌ Not all TVs are properly subtitled in the MKV.

Method 4: Google Cast (Chromecast) for YouTube and streaming services

If you're watching videos on YouTube, Netflix or Movie Search, it's more convenient to use Google Cast, which works through apps that support Cast.

Step-by-step:

1. Open the app (like YouTube) on Redmi 9.
2. In the upper right corner, click the broadcast icon (📡).
3. Choose your TV or Chromecast from the list.
4. The video will start playing on TV, and the smartphone will become a remote.

List of apps that support Google Cast:

• 🎥 YouTube, Netflix, Disney+
• 🎵 Spotify, Yandex Music
• 📺 Twitch, Movie Search HD, IVI

Important: Some Xiaomi TVs (e.g. Mi) TV 4S) Google Cast can be disabled by default. To activate it, go to TV Settings → Devices → Google Cast and enable the option.

5. Method 4: Translation applications (alternative to embedded functions)

If standard methods don't work (for example, due to old firmware or TV incompatibility), use third-party apps. We tested 3 of the most stable options for Redmi 9:

Adjustment recommendations:

1. Download the app from Google Play (avoid third-party sources!).
2. Connect your TV and smartphone to the same Wi-Fi network.
3. Follow the instructions in the app (usually click Start Mirroring or Connect to). TV).
4. ApowerMirror may require the installation of a server part on TV (via Send Files to) TV).

💡

If an image on TV is displayed with artifacts, reduce the resolution of the broadcast in the application settings. For example, in ApowerMirror, select 720p instead 1080p — This will reduce the burden on Wi-Fi.

6.Method 5: Using Xiaomi Mi Home for Smart TVs

If you have a Xiaomi TV (like Mi). TV 4, Mi TV Q1), You can use the Mi Home ecosystem for fast broadcasting, and this is only suitable for devices with a high-speed network. MIUI mi TV single-account.

How to connect:

1. Install the Mi Home app on Redmi 9 and log in.
2. Add the TV to your list of devices (if it’s not already connected).
3. Open a gallery or video player on your smartphone → Press Share. → Choose Mi. TV.
4. The file will open on the TV in the Mi Gallery or Mi Video app.

Advantages:

• 🔗 Automatic synchronization of devices through the Xiaomi account.
• 📁 Support for cloud files (e.g. from Mi Cloud).
• 🎮 You can stream games with minimal delay (up to 50 ms).

⚠️ Note: When first connected, the TV may request confirmation via QR-Generate it in Mi Home on your smartphone and scan it with your TV camera.

7. Solving Problems: Why Video Transmission Doesn't Work

If the video is not broadcast or the connection is interrupted, check the following points:

Additional advice:

• 🔧 If Miracast doesn’t work, try resetting your network settings to Redmi 9: Settings → System system → Reset → Reset Wi-Fi, mobile network and Bluetooth.
• 🔄 For DLNA use the app VLC — It supports more formats than a standard player.
• 📡 If the router does not support 5 GHz, reduce the bitrate of the video to 5 Mbps (for example, via a router). MX Player).

💡

The most common reason for a broken broadcast is different Wi-Fi networks on your smartphone and TV. Always check this first!

8. Comparison of methods: which way to choose

The choice of method depends on your tasks and equipment. Here is a quick comparison:

Recommendations:

• 🎮 For games, it is better to use Miracast or ApowerMirror (minimum latency).
• 🎬 It's perfect for movies. DLNA Google Cast (the best quality).
• 📱 For social networks (for example, TikTok) suitable duplication of the screen through Miracast.

FAQ: Frequent questions about streaming videos with Redmi 9 TV