How to connect Xiaomi Redmi 9 to a TV via Wi-Fi: 3 proven ways

Why Wi-Fi is the best way to connect Redmi 9 to your TV

Wirelessly transferring the screen from the Xiaomi Redmi 9 smartphone to the TV via Wi-Fi solves two key problems: eliminates the confusion of wires and preserves the mobile device. HDMI-adapter USB-With cables that tie the phone to a single location, Wi-Fi allows you to move freely around the room within a network range, which is especially convenient for watching movies, streaming games or showing photos of a group of friends.

Technologically, Redmi 9 supports three main wireless broadcast protocols: Miracast (built into Android), Wi-Fi Direct (direct connection without a router), and proprietary solutions from Smart TV manufacturers (such as Screen Mirroring from Samsung or Google Cast). Each method has its own nuances: Miracast is versatile, but can slow down at a weak signal, and Wi-Fi Direct requires compatibility with a TV. In this article, we will analyze all options taking into account the features of the MIUI firmware for Redmi 9.

It is important to consider the limitations: for example, when broadcasting through Miracast, sound will come from the TV, and when using some third-party applications (like YouTube) – from the phone. Also, the Redmi 9 based on the Helio G80 processor does not support broadcasting in 4K resolution over Wi-Fi – the maximum quality is limited to Full HD (1080p) at 30 Hz. This is not critical for movies, but can be noticeable in dynamic games.

Method 1: Connect via Miracast (built-in Android feature)

Miracast is a wireless screen broadcast standard supported by most modern TVs and Android devices, including Redmi 9. Its main advantage is the lack of an Internet connection: the phone and TV communicate directly over Wi-Fi. However, stable operation requires that both devices support the protocol (usually indicated in the characteristics of the TV as "Miracast" or "Wireless Display").

To activate the broadcast:

1. On your TV, turn on Miracast mode. On the menu, this can be called Screen Mirroring, Wireless Display or Universal Access (on TV from Xiaomi - Screen → Wireless broadcast).
2. On Redmi 9, open Settings → Connections and Sharing → Broadcast (Cast).
3. From the list of available devices, select the name of your TV. If it is not available, update the list with the Update button.
4. Confirm the connection on both devices (entry may be required) PIN-TV-code).

Once successfully connected, the screen will be duplicated on the TV, and the latency is usually 100-200 ms, which is enough to watch videos, but not enough for competitive games.

• 📶 Reduce the distance between devices (optimally up to 3 meters).
• 🔄 Reboot the router (if it runs in the same range) 2.4/5 GHz).
• 📵 Disable background applications that consume the Internet on the phone (for example, downloads to the Internet) MIUI Downloads).

⚠️ Note: On some televisions LG Sony Miracast may not work if the TV settings are "Only 5GHz." Turn the TV to 2.4GHz. + 5 GHz or Auto.

Method 2: Using Wi-Fi Direct (direct connection)

Wi-Fi Direct is an alternative to Miracast, which creates a direct channel between Redmi 9 and the TV without a router intermediary, and it's useful if your TV doesn't support Miracast or you want to stream files (photos, videos) directly rather than stream the screen. However, not all TVs are equipped with Wi-Fi Direct: check this in the instructions or the network settings menu.

Instructions for connection:

1. On your TV, activate Wi-Fi Direct. On the menu, this can be called Wi-Fi Direct, Direct Connection, or WFD.
2. On Redmi 9, go to Settings → Wi-Fi → Additional → Wi-Fi Direct.
3. Find the name of your TV and connect to it, enter your password if necessary (usually 8 digits displayed on the TV screen).
4. Once connected, use the Files or Gallery app to transfer media files to your TV.

Wi-Fi Direct is suitable for viewing photos or videos from your phone’s memory, but does not broadcast the screen in real time. If you need mirroring, use Miracast or third-party apps (about them in the next section), also note that with active Wi-Fi Direct, your phone will not be able to connect to the Internet at the same time through the same Wi-Fi module.

The TV supports Wi-Fi Direct|The phone is disabled mode "Saving traffic"|Distance between devices ≤ 5 meters|Visibility mode on TV for new devices-->

Method 3: Broadcasting applications (Google Cast, ApowerMirror, etc.)

If the built-in features of Redmi 9 or TV don't work, third-party apps come to the rescue, and they fall into two types:

• 📺 For Smart. TV Android TV/Google TV: Google Cast (embedded in YouTube, Netflix), LocalCast, BubbleUPnP. These apps use the protocol DLNA Google Cast for streaming content.
• 📱 To mirror the screen, they're ApowerMirror, Screen Mirroring, Miracast Screen Sharing, and they emulate Miracast or they create a virtual display.

Consider connecting via Google Cast (the most reliable option for Android TVs):

1. Make sure your phone and TV are connected to the same Wi-Fi network.
2. Open an app that supports Cast (like YouTube).
3. Slip the broadcast icon (usually in the upper right corner) and select your TV.
4. The video will start playing on TV, and the phone can be used for control (pause, volume).

ApowerMirror is suitable for full screen mirroring:

1. Download the app to your phone and install the server part on your TV (if it’s an Android TV).
2. Run ApowerMirror on both devices and select Mirror mode.
3. Connect to the TV through PIN-code QR-code.

⚠️ Note: Mirror apps often require payment for unlocking Full HD-quality or watermark removal. Free versions may limit resolution to 720p.

Comparison of Connection Methods: Which One Should You Choose?

The choice of method depends on your tasks and equipment. Below is a table with a comparison of key parameters:

For most Redmi 9 users, the best solution is:

• 🎬 For movies and videos: Google Cast (if TV is on Android) TV) Miracast.
• 🎮 For games: Miracast (despite the delay, it is less than that of third-party apps).
• 📷 For photos: Wi-Fi Direct or transmission via USB (if quality is critical).

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Miracast is a universal method, but Google Cast gives the best quality for streaming services (Netflix, YouTube).

Common Problems and Their Solutions

Even if you set up the right setup, connecting Redmi 9 to your TV via Wi-Fi can cause problems, and here are some common mistakes and ways to fix them:

1.The TV is not displayed in the list of broadcast devices

• 🔌 Check if Screen Mirroring or Miracast is on TV.
• 🔄 Reboot both devices.
• 📡 Make sure your phone is on Wi-Fi (even if you use Wi-Fi Direct).
• 🛠️ Update the firmware MIUI Redmi 9 (old versions had Miracast bugs).

2. The image is braking or tearing.

• 📶 Switch the router to the 5GHz band (if supported).
• 🚫 Close the background apps on your phone (especially messengers and downloaders).
• 🔋 Connect Redmi 9 to charging – with low battery levels, the system limits Wi-Fi performance.
• 🖥️ Reduce the broadcast resolution in Miracast settings (if available).

3.There's no sound on the TV.

• 🔊 Check if the phone is silent or vibration".
• 🎧 In the broadcast settings, select the Sound over TV option (if any).
• 🔄 Reconnect devices – sometimes the sound channel “whilts".

4.The connection is constantly broken

• 📵 Make sure the router is power saving mode disabled (may break the connection).
• 🔄 Change the Wi-Fi channel in the router settings (for example, from Auto to Channel 6).
• 🛡️ Turn it off on your phone. VPN Firewall (they can block the transmission of data).

⚠️ Note: Some Xiaomi TVs (e.g., Mi series) TV 4A) When you connect through Miracast, you may experience an error called "No audio codec is supported." Solution: Select the format in your TV sound settings. PCM instead of Dolby.

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If Miracast is permanently interrupted, try turning on the developer mode and activating the Wi-Fi debugging option, which sometimes stabilizes the connection.

Additional settings to improve the quality of the broadcast

To minimize latency and improve image quality when connecting Redmi 9 to your TV, use these tips:

1. Optimization of Wi-Fi network

• 📡 Use a support router MU-MIMO (For example, Xiaomi Router 4A Gigabit).
• 🔄 Divide 2.4 GHz and 5 GHz networks into different SSID (name) and connect to 5 GHz.
• 📶 Set the router closer to the TV or use a signal repeater.

2. Phone settings

• 🔋 Enable Performance Mode in Settings → Battery.
• 🚀 Activate. GPU Turbo in Settings → Special facilities → Laboratory MIUI (Improves graphics processing).
• 📱 Turn off Adaptive Brightness – it can cause the screen to blink when broadcasting.

3. TV settings

• 🖼️ Enable the Game mode or PC (Reduces signal processing delay).
• 🔊 Turn off post-processing (such as Dolby Atmos) if you have problems syncing.
• 📺 Update the firmware of the TV (especially relevant for Xiaomi Mi models) TV).

If you’re streaming games, try to reduce the graphical settings in the game itself: turn off anti-aliasing and shadows to reduce the load on the Helio G80 processor. Also, close all background applications – MIUI aggressively manages memory, and this can cause slowdowns.

FAQ: Frequent questions about Redmi connection 9 television-to-TV