Modern smartphones such as Xiaomi Redmi 9 Pro, have powerful multimedia capabilities that you often want to showcase on the big screen. Connecting the device to your TV without unnecessary cables is not only convenient but also essential for comfortable movie watching or presentations. Wireless technology allows for almost instant image transmission while maintaining high image quality.
In this article, we will take a detailed look at all the available methods for connecting your Redmi 9 Pro Connect your smart TV via Wi-Fi. You'll learn about native MIUI features, third-party apps, and streaming methods via Google protocols. This guide will help you turn your gadget into a home theater remote control.
Technical requirements and preparation of devices
Before you start the setup, you need to make sure that both devices are in the same network conditions. Wireless connection Requires a stable signal, so the router must be functioning correctly. It's crucial that both the smartphone and TV are connected to the same Wi-Fi network (same SSID and password).
Check the version of the operating system on your XiaomiFor stable operation of the broadcast function, it is recommended to have an updated MIUI firmware. Go to Settings → About phone → MIUI version and check for updates. Older software versions may contain bugs that prevent external displays from being detected.
It's also worth paying attention to power saving settings. Sometimes aggressive battery optimization blocks background device search processes.
⚠️ Important: If your router supports both 2.4 GHz and 5 GHz bands, make sure both devices are connected to the same frequency. Different frequencies can create virtual isolation, preventing devices from "seeing" each other on the local network.
To check readiness, follow these steps:
- 📶 Make sure the Wi-Fi module on your Redmi 9 Pro is active and the connection icon is lit.
- 📺 Check that your Smart TV is turned on and has internet access.
- 🔄 Restart your router if your network is unstable or slow.
☑️ Check before connection
Using the built-in "Broadcast" function (Miracast)
The easiest way, which does not require installing additional software, is to use the built-in protocol MiracastIn MIUI, this feature is often called "Cast" or "Wireless Monitor." It allows you to mirror your smartphone's screen to a TV in real time.
To activate the mode, pull down the notification shade. Find the "Cast" icon. If it's not on the main widget screen, tap the three dots or the edit button to add it to the quick access panel. Once enabled, it will search for available devices.
You also need to activate signal reception mode on your TV. Depending on the TV brand, this feature may have different names:
- 📺 Samsung: Screen Mirroring or Smart View.
- 📺 LG: Screen Share.
- 📺 Sony/Philips/TCL: Screen mirroring or Miracast.
When Redmi 9 Pro Once your TV is detected, click its name in the list. A connection confirmation prompt may appear on the TV screen. Use the remote to confirm the connection. The image from your phone will appear on the big screen with minimal delay.
This method is ideal for displaying photos, videos from the gallery, or navigating menus. However, it may not be suitable for gaming due to possible input lag (input delays).
Cast via Google Chromecast and apps
Many modern TVs have built-in support for this technology. Google CastThis allows you to stream content directly from apps without overloading your phone's processor by duplicating the entire screen. For this method to work, Redmi 9 Pro Google Play services must be installed.
Open the app you want to share content from (e.g., YouTube, Netflix, Google Photos). Find the casting icon—the rectangle with waves in the corner. Tap it and select your TV from the list.
Unlike Miracast, the phone only acts as a remote control. The video is buffered by the TV itself, saving battery life and often improving picture quality.
| Characteristic | Miracast (Broadcast) | Google Cast (Chromecast) |
|---|---|---|
| Transmission type | Duplicate the entire screen | Broadcasting specific content |
| Battery consumption | High | Short |
| Multitasking capability | No (screen is busy) | Yes (you can use the phone) |
| Phone screen addiction | Full | It doesn't depend |
If you don't have a built-in Chromecast, you can use third-party aggregator apps such as Web Video Caster or LocalCastThey can send video files from the phone's memory to the TV, decoding the stream on the TV side.
Setting up via the Mi Remote app
Smartphone owners Xiaomi have a unique advantage - a pre-installed application Mi RemoteAlthough it is primarily designed for controlling devices via IR, in the latest versions of MIUI it also helps find and connect to devices on the local network.
Launch the app and go to the TV control section. If your TV is on the same Wi-Fi network, the app may offer advanced control features. This is especially useful if your TV remote is lost or the battery is dead.
To connect:
- Open Mi Remote.
- Click "Add device".
- Select the device type "TV" and brand.
- Follow the on-screen instructions to pair.
⚠️ Note: Mi Remote's wireless image sharing functionality may vary depending on the MIUI version and TV model. In some regions, this feature has been replaced by the standard "Cast" system shortcut.
Using a native app ensures better compatibility with the ecosystem XiaomiHowever, for (pure) screencasting, the Miracast method described above is often more effective.
What should I do if Mi Remote doesn't detect the TV?
Make sure the network control feature (often called DLNA or Remote Control) is enabled on your TV. Also, check that your antivirus software or router firewall isn't blocking local connections between devices.
Connection problems and their solutions
Even with the correct settings, errors may occur. Often the problem lies in security protocols router or outdated software. If the devices can't find each other, try temporarily disabling AP Isolation in the router settings.
Another common cause is a full cache of Google Play services or system streaming services. Clearing the data of these apps may restore the functionality.
Algorithm of actions in case of failures:
- 🔄 Perform a full reboot of your router, phone, and TV.
- 📡 Forget the Wi-Fi network on your phone and reconnect.
- 🛡️ Check if your router is in guest mode (it often blocks communication between devices).
If all else fails, you can use alternative methods such as creating an access point, although this is not always effective for streaming.
Alternative methods and third-party software
If standard methods don't work, third-party applications come to the rescue. The program AirScreen or ApowerMirror (requires client installation on both TV and phone) allows you to establish a connection even between incompatible systems.
For advanced users, a connection method is available via ADB (Android Debug Bridge), but it requires a computer and a cable. This allows you to forcefully activate hidden Wi-Fi debugging features.
It is also worth considering purchasing an external adapter, for example, Google Chromecast or Amazon Fire TV Stick, if your TV is old and doesn't have Smart TV. In this case, Redmi 9 Pro will be connected to this adapter, ensuring stable operation of all functions.
⚠️ Caution: Be careful when installing third-party apps from unknown sources (APK files). Download software only from official stores (Google Play, Mi GetApps) to avoid installing malware that could intercept your Wi-Fi network data.
The method you choose depends on your goals: a wired connection or HDMI is better for gaming, Chromecast for video, and built-in MIUI streaming for quick photo sharing.
Frequently Asked Questions (FAQ)
Is it possible to connect Redmi 9 Pro to a TV without Wi-Fi?
Yes, this can be done with a cable. Since the Redmi 9 Pro doesn't support video output via USB-C (MHL/DP Alt Mode), you'll need a dedicated USB-C to HDMI adapter with DisplayLink support or casting boxes (like Chromecast), which create their own Wi-Fi network (Direct), eliminating the need for a home router.
Why is there no sound on the TV during broadcasting?
Most often, the problem lies with the settings of a specific app or the selected protocol. When using Miracast, audio should be automatic. If you're using Chromecast within the YouTube app, check that the audio output device is selected. Also, make sure that your TV isn't set to "Video Only" or a similar restriction.
Does screencasting affect internet speed?
Yes, it does. When mirroring your screen (Miracast), traffic flows directly between devices through the router, saving internet bandwidth but consuming Wi-Fi. When streaming online video (YouTube via Cast), the entire internet connection is used, as the TV downloads content directly from the network.
Is it safe to use the "Broadcast" feature in public places?
Be careful. On public Wi-Fi networks (such as cafes and airports), other users could potentially see connection requests or attempt to connect to your device. Use the "Invisible" feature in your Bluetooth and Wi-Fi settings if you don't plan to actively broadcast.