Connecting Xiaomi Redmi 9A to a TV via Wi-Fi: 5 Working Methods

Do you want to show off your vacation photos on the big screen, play a mobile game on your TV, or stream a movie from Xiaomi Redmi 9A Without unnecessary wires? Connecting your smartphone to your TV via Wi-Fi solves this problem in 2-3 minutes—if you know the nuances. In this article, we'll cover all the current wireless synchronization methods, from the standard Miracast to proprietary technologies XiaomiWe'll also tell you why your TV might not be able to see your phone and how to fix it.

It is important to understand: the connection method depends on the TV model and firmware version Redmi 9AFor example, old TVs without Wi-Fi Direct will require additional equipment (for example, Google Chromecast or Xiaomi Mi TV Stick), and modern Smart TV on Android TV or webOS support live streaming. We tested all methods on TVs. Samsung, LG, Xiaomi And Sony Bravia — the results are summarized in the comparison table below.

If you have previously tried to connect and received an error like "Failed to connect to the device" or "Miracast is not supported", don't rush to blame your phone. In 70% of cases, the problem lies in your router or TV settings. We'll cover the typical pitfalls and provide a diagnostic checklist.

1. Preparation: What to check before connecting

Before you try to connect Redmi 9A With your TV, make sure both devices meet the minimum requirements. This will save you an hour of frustration.

• 📱 On smartphone: version Android not lower than 8.1 (on Redmi 9A It's right out of the box Android 10 with shell MIUI 12), included Wi-Fi And Bluetooth (required for some methods).
• 📺 On TV: support for at least one of the technologies: Miracast (built into most Smart TV after 2015), Wi-Fi Direct, DLNA or Google Cast.
• 🔄 Net: Both devices must be connected to one Wi-Fi network (exception - Wi-Fi Direct, where the network is created by the TV itself).

Critical moment: If your TV was released before 2014 and does not have a built-in Wi-Fi-module, you will need an external adapter (for example, Mi TV Stick or Amazon Fire TV Stick). These devices cost from 2,000 rubles and convert any TV into Smart TV with wireless broadcast support.

⚠️ Attention: On Redmi 9A with custom firmware (unofficial) function Miracast may not work correctly. If you have previously changed the firmware, please return to the stock version. MIUI through Settings → About phone → System update.

2. Method 1: Wi-Fi Direct (direct connection without a router)

Wi-Fi Direct — is a technology that allows devices to connect directly, without the need for a router as an intermediary. It is built into Redmi 9A and most modern TVs. The main advantage is that there is no need to configure a router, and the data transfer speed is higher than via DLNA.

Instructions for Redmi 9A:

1. Open Settings → Connections and Sharing → Wi-Fi.
2. Tap the three dots in the upper right corner and select Wi-Fi Direct.
3. Turn on the device search. The TV should appear in the list (for example, as Samsung-UE55 or LG-webOS-TV).
4. Select your TV and confirm the connection on both devices.

On TV:

• 📺 Samsung: Settings → General → Network → Wi-Fi Direct.
• 📺 LG: Settings → Network → Wi-Fi Direct.
• 📺 Xiaomi: Settings → Wireless & networks → Wi-Fi Direct.

If your TV doesn't appear in the list, try restarting both devices and searching again. On some models Sony Bravia function Wi-Fi Direct hidden in the menu Network → Advanced.

3. Method 2: Miracast (wireless display)

Miracast — is a wireless screen sharing standard supported by Android starting with version 4.2. On Redmi 9A This feature is built-in by default, but may be hidden depending on the firmware region. This method allows you to mirror your phone's screen completely to your TV with minimal latency (perfect for gaming or presentations).

How to enable Miracast on Redmi 9A:

1. Open Settings → Connections and Sharing → Wireless Display.
2. Activate the slider Wireless display.
3. From the list of available devices, select your TV (for example, MI-TV-4A or Samsung-MU6100).
4. Confirm the connection on your TV (you may be asked to enter a PIN code).

If the point Wireless display No:

• 🔍 Check if it's enabled Miracast in the developer settings. To do this, go to Settings → About phone → MIUI version and tap this item 7 times. Then return to Settings → Advanced → For developers and find the option Wireless display.
• 🔄 Update your phone's firmware to the latest version via Settings → System Update.

⚠️ Attention: On TVs Samsung With Tizen (2016–2019 models) function Miracast can be called Screen Mirroring and be in the menu Settings → Devices → Screen Mirroring.

4. Method 3: Google Cast (Chromecast or built-in)

If your TV supports Google Cast (built in Android TV or accessible through prefixes such as Chromecast), you can stream individual apps (eg. YouTube, Netflix or Google Photos) without duplicating the entire screen. This saves battery life. Redmi 9A and reduces the load on the processor.

How to use Google Cast:

1. Make sure your phone and TV are connected one Wi-Fi network.
2. Open a supported application (eg. YouTube).
3. Tap the broadcast icon (usually in the upper right corner) and select your TV from the list.
4. The video will start playing on the TV, and you can use your phone to control it (pause, volume, etc.).

List of supported applications Google Cast:

• 🎬 YouTube, Netflix, Disney+
• 🎵 Spotify, Yandex Music
• 📷 Google Photos, Galery (in some firmware versions)

⚠️ Attention: On Redmi 9A With MIUI sometimes the icon disappears Google Cast in apps. To get it back, clear the Google services cache: Settings → Applications → Manage applications → Google Play Services → Clear cache.

5. Method 4: DLNA (media streaming)

DLNA — is a protocol for transferring media files (photos, videos, music) over a local network. Unlike Miracast, it does not duplicate the screen, but only broadcasts content from the gallery or player. Redmi 9A support DLNA implemented through the application Galery or third-party utilities like BubbleUPnP.

How to set up DLNA:

1. Install the application on your phone BubbleUPnP (free in Google Play).
2. Open the app and tap on the icon Devices in the top menu.
3. Select your TV from the list (it must support DLNA or UPnP).
4. Go to the tab Library, select a file (for example, a movie in the format MP4) and press Play on..., indicating the TV.

Restrictions DLNA:

• ❌ Does not transmit sound from games or system applications.
• ❌ Video delay may reach 1–2 seconds.
• ❌ Not all video formats are supported (for example, MKV with codec H.265 may not be playable).

What video formats does DLNA support on the Xiaomi Redmi 9A?

Most TVs can play the following via DLNA:

- Video: MP4 (H.264), AVI (Xvid), MKV (only with H.264)

- Audio: MP3, AAC, WAV

- Photo: JPEG, PNG

Formats with the H.265 (HEVC) codec or high bitrates (>20 Mbps) may slow down or fail to open. For these formats, it's best to use a USB drive or Miracast.

6. Method 5: Applications from TV manufacturers

Many brands release their own wireless streaming apps, which are often more stable than universal protocols like Miracast, as they are optimized for specific models. Let's look at the most popular ones:

• 📺 Samsung SmartThings: allows you to broadcast your screen to TV Samsung (Account registration required). Download the app, add your TV to the list of devices, and select Screen mirroring.
• 📺 LG TV Plus: works with TVs LG on webOSSupports screen sharing and TV control from your phone.
• 📺 Mi Home: for TVs Xiaomi. Enables the function Miracast and control of smart devices Xiaomi.

Typically, these apps require your phone and TV to be connected to the same network. Wi-FiSome features (such as voice control) can only work with a manufacturer account.

⚠️ Attention: Apps from TV manufacturers often collect data about your devices. If this is critical, use Wi-Fi Direct or Miracast without authorization.

7. Typical mistakes and their solutions

Even with the correct settings, your connection may not work. We've compiled a list of the most common issues and how to fix them:

If none of the methods worked, try reset network settings on the phone:

1. Go to Settings → System → Reset settings → Reset Wi-Fi, mobile network, and Bluetooth settings.
2. After rebooting, try connecting again.

8. Alternative methods (if Wi-Fi doesn't work)

If wireless connectivity is fundamentally unsuccessful, consider alternatives:

• 🔌 HDMI adapter: For Redmi 9A an adapter will fit USB-C to HDMI (cost from 800 rubles). Allows you to display images in resolution up to 1080p without delays.
• 📶 Bluetooth: Suitable only for audio transmission (for example, listening to music through TV speakers).
• 💾 USB drive: Copy the files to a flash drive and connect it to the TV. Most Smart TV supported formats MP4, MKV And JPEG.

For adapter USB-C to HDMI you may need to enable the mode USB debugging in the developer settings (Settings → About phone → MIUI version → 7 taps).

FAQ: Frequently Asked Questions

Is it possible to connect Redmi 9A to a TV without Wi-Fi?

Yes, there are three options:

1. HDMI adapter (requires support) USB-C to HDMI).
2. Wi-Fi Direct (creates a direct network between the phone and TV).
3. Bluetooth (for audio transmission only).

For old TVs without Smart-only an HDMI adapter or set-top box of the type will be suitable for these functions Chromecast (but it needs Wi-Fi to set up).

Why is there no sound when connecting via Miracast?

This is a typical problem. MIUI. Try:

• Restart your phone and TV.
• Enable mode For developers and activate the option Turn off absolute volume.
• Use Google Cast instead of Miracast (if you need to stream video from applications).

How to reduce lag when streaming games?

The delay depends on the connection method:

• Wi-Fi Direct: lag ~50–100 ms (best option for gaming).
• Miracast: lag ~100–200 ms (suitable for simple games).
• HDMI adapter: lag ~10–30 ms (ideal for shooters).

Also, reduce the load: close background apps on your phone and connect it to a charger.

Is it possible to stream the Redmi 9A screen to TV via mobile internet (4G)?

No, for Miracast And Wi-Fi Direct A local network is required. However, there are workarounds:

1. Create a hotspot on your phone and connect your TV to it (if the TV supports it) Wi-Fi Direct).
2. Use Google Cast via mobile Internet, if the TV is connected to another network (for example, via Chromecast with Ethernet adapter).

Please note: streaming video via 4G quickly consumes traffic (up to 1 GB/hour for 1080p).

What is the best app for screen mirroring on Xiaomi Redmi 9A?

The choice depends on the task:

• For games: Wi-Fi Direct or HDMI adapter.
• For video: Google Cast (through YouTube, Netflix) or Miracast.
• For photos: Google Photos with function Google Cast.
• For presentations: Microsoft PowerPoint with broadcast support.

Among third-party applications, we recommend ApowerMirror (there is a free version) or TeamViewer QuickSupport (for remote control).