How to bring the screen of Xiaomi Redmi 9 on TV: the full guide

Modern smartphones like the Xiaomi Redmi 9 have high-resolution screens, but sometimes you want to see photos or videos on a large display. Streaming images from a mobile device to a TV becomes the standard for watching content in a company or for presentations. Owners of budget and mid-budget models often face the question of how to implement this functionality without loss of quality.

The process of syncing Xiaomi Redmi 9 with the TV can be done in several ways, depending on the type of TV and accessories available. We will look at wired and wireless methods that ensure stable video transmission. The choice of the right option depends on your goals and the technical equipment of the living room.

In this article, we will take a closer look at each method, point out possible problems, and suggest ways to solve them. You will learn how to use the built-in MIUI shell features and third-party apps to achieve the best result. Follow the instructions to turn your smartphone into a powerful multimedia center.

Wireless broadcasting through the built-in function "Translation"

The easiest way to display an image is to use Miracast technology, which is built into the Android operating system and the MIUI shell. To do this, your TV must support Screen Mirroring or be a Smart TV with a connection to the same Wi-Fi network. On Xiaomi Redmi 9, this option is called Translation and is in the notification curtain or in the settings.

To start the process, make sure both devices are connected to the same router. Open the swipe control panel from top to bottom and find the Translation icon. If there is no icon, go to Settings → Connection and Sharing → Broadcast. The system will start searching for available devices within the network range.

Once you find the TV, click on the name on the list. You may see a request for permission to connect on your TV screen, which you need to confirm with the remote. An image from Xiaomi Redmi 9 will instantly appear on the big screen with minimal latency.

⚠️ Warning: Wi-Fi wireless transmissions can heat your smartphone. If you plan to watch long, remove the protective case for better heat sink.

The quality of the image depends on the speed and stability of the wireless network. If you notice twitching or desynchronization of the sound, try to bring the router closer to the point of reception of the signal.

Using Google Chromecast technology

Xiaomi Redmi 9 owners have access to Google’s ecosystem, which allows for the built-in Cast feature.This method is ideal if your TV is running Android TV or has a built-in Chromecast module. Unlike Miracast, it doesn’t stream the entire screen, but content from a particular app.

Open an app like YouTube or Netflix on your smartphone. Find the broadcast icon (a rectangle with waves in the corner) at the top of the interface. Click on it and select your TV from the list of available devices.

The advantage of this method is that the Xiaomi Redmi 9 acts as a remote control, so you can fold the application, answer calls or play games, and the video on the TV will continue to play without interruption, which saves battery power and reduces the load on the processor.

• 📺 Broadcast works even with the smartphone screen turned off.
• 🌐 No need for a permanent active Wi-Fi Direct connection after launch.
• 🔋 Saves battery power compared to full screen duplication.
• 🎬 Maintains high resolution up to 4K if relevant content is available.

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If the TV is not on the list, make sure it includes Chromecast built-in in your network settings.

Connection through HDMI-adapter (wiring method)

For situations where Wi-Fi is overloaded or absent, wired connectivity is the best solution. However, the Xiaomi Redmi 9 has an important feature: the USB Type-C port here is version 2.0 and does not support direct video output (MHL/DisplayPort Alt Mode), which means that a simple USB-C to HDMI cable will not work.

To implement a wired connection, you’ll need a dedicated adapter that converts a digital signal through DisplayLink technology or uses an external decoder. The alternative is to use a video-enabled docking station, but compatibility with Xiaomi’s budget models is often limited.

If you do decide to try this option, connect the adapter to the charging port, and connect the HDMI cable to the TV. Switch the signal source to the TV to the appropriate input HDMI 1 or HDMI 2. The smartphone may require permission to debug or transfer data.

Broadcasting via Mi Remote and IR port

A unique feature of many Xiaomi smartphones, including some Redmi 9 modifications, is the presence of an infrared port. This allows you to use the phone as a universal control panel for your TV. Although it does not duplicate the screen, it gives you complete control over media content.

Run the Mi Remote app preinstalled. Select the TV device type and your manufacturer's brand. Follow the instructions on the screen by pressing the buttons to check the codes. Once paired, you can control volume, switch channels, and start the media library.

This method is especially useful if you lost the original remote or want to combine control of multiple devices in one interface.Infrared signal does not require network setup and works instantly.

• 🔴 It works without an internet connection.
• 📱 Combines the management of TV, air conditioning and console.
• 🔋 Minimum energy consumption of a smartphone.

⚠️ Warning: Check for an IR port on the top of your case. In some regional versions of Redmi 9, this module may not be available.

Using DLNA to play media files

If your goal is to show photos or videos saved in Xiaomi Redmi 9 memory, DLNA technology is a great choice: it allows you to stream files directly to the TV without duplicating the entire interface of the smartphone, for this, the TV must support DLNA or have a receiver application installed.

Open a standard gallery or video player on your phone. Select the photo or video file you want. In the action menu (usually three dots or the "More" button), find the "Translate" or TV icon. The system will offer a list of available devices.

Once you select the TV, buffering and playback will begin, and the advantage of DLNA is that the TV itself decodes the video file using its power, which provides smoothness even for heavy formats like 4K HEVC.

For more advanced media library management, you can install third-party controller apps from Google Play, such as BubbleUPnP. They provide more flexible equalizer and subtitles settings.

Addressing problems and delays

When using wireless methods, users often experience audio and video out-of-synchronization or intermittent connection breaks, often due to Wi-Fi congestion or weak signal. Try switching your router to 5 GHz if your TV supports this range.

Another common problem is the black screen when trying to stream protected content (DRM).Some apps, such as Netflix or Disney+, can block the output of an image through Miracast due to copyright protection policies.

If the image twitches, close the background apps on Xiaomi Redmi 9 that consume traffic. Also make sure that the TV turns off energy-saving modes, which can reduce the priority of processing network flow.

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The stability of the connection depends on the quality of the Wi-Fi signal and the distance between the router and the devices.

Frequently Asked Questions (FAQ)