Modern smartphones such as Xiaomi Redmi 8T, have powerful displays, but to view content on a large screen, it's necessary to output the image to a TV. Wireless technologies make it possible to stream videos, photos, and even the gadget's desktop to the panel. Smart TV Without the need for unnecessary wires, this is especially convenient for showing presentations or watching movies with the whole family.
The pairing process is based on the use of a local network Wi-Fithrough which devices exchange multimedia data. In the ecosystem MIUIThe Redmi 8T's built-in TV supports multiple signal transmission protocols, including Miracast and Google Cast. Proper configuration of both devices ensures a stable picture without lag or audio desync.
To successfully start the procedure, you need to make sure that your TV supports the function Smart TV or equipped with an external media player with internet access. If you have an older TV model, there's a solution, but it will require additional adapters. Let's take a closer look at all the available options.
Preparing devices for wireless connection
The first and most important step is to ensure a unified network environment for both gadgets. Phone Redmi 8T and the TV must be connected to the same access point Wi-Fi routerIf you use a guest network or the 5 GHz band on one device and 2.4 GHz on another, they may not "see" each other due to client isolation settings.
You need to activate the wireless module on your smartphone and check the operating system version. Updates are currently available for the Redmi 8T. MIUI, which often contain fixes to media transfer protocols. Go to settings and ensure the date and time are set correctly, as clock desynchronization can prevent authorization in the smart home system.
⚠️ Important: If your router broadcasts two different networks (for example, Home_2.4 and Home_5G), be sure to connect both devices to one of them. Mixed connections often block device detection on the local network.
It's also worth checking whether the discovery feature is enabled on the TV itself. In the menus of some Samsung or LG models, this option may be called "Screen Share," "Miracast," or "Wireless Projection," and is disabled by default. Enabling this feature puts the TV into connection standby mode.
Using the built-in "Cast" feature in MIUI
In the shell MIUI, which is installed on Xiaomi Redmi 8T, there is a native screen mirroring tool. It works based on the protocol Miracast, which allows you to connect to most modern Smart TVs without installing additional software. To launch, find the "Cast" icon in the notification bar.
If the icon isn't available in the quick access menu, go to the Settings menu, select "Connection and Sharing," and find the corresponding option there. The system will begin searching for available devices within range. A connection permission request may appear on the TV screen, which you'll need to confirm with the remote.
After successful pairing, the phone's image is completely mirrored on the larger screen. It's important to understand that in this mode, the phone doesn't turn off its display, and the battery may drain faster due to the active module. Wi-Fi DirectFor comfortable use, it is recommended to charge the gadget.
- 📱 Open the notification shade by swiping down from the top.
- 📡 Click on the "Broadcast" or "Cast" icon.
- 📺 Select your TV from the list that appears.
- ✅ Confirm the connection on the TV screen if required.
☑️ Pre-broadcast check
Streaming via Google Home and Chromecast
An alternative and often more sustainable way is to use technology Google CastEven if your TV doesn't have Chromecast built-in, many modern models support this protocol at the system level. Android TVAn application will be required to manage the process. Google Home, which can be downloaded from the Play Market store.
After installing the app and signing in to your Google account, it will scan your network and find available display devices. Clicking on your TV's icon will give you access to controls. The "Cast Screen" feature allows you to mirror the display's contents. Redmi 8T with minimal delay.
The advantage of the method is through Google Home The advantage lies in better optimization of the video stream. While Miracast simply copies the image, Cast protocols can transmit a link to a video stream, which the TV plays automatically, offloading the phone's processor. This is especially important for watching high-definition video.
⚠️ Note: When using Google Home, make sure your Redmi 8T has all the necessary permissions for the app to work, including access to the local network and location.
It's worth noting that some apps, such as Netflix or Disney+, may block the display of protected content through standard screen mirroring due to HDCP policies. In such cases, it's best to use the cast button within the video player itself, selecting the TV as the target device.
Connecting to TVs of different brands
The connection process may vary slightly depending on the TV manufacturer and operating system. Below is a table to help you navigate the function names for popular brands, so you know what to look for in your TV's menu.
| TV brand | Name of the function in the menu | Menu location | Peculiarities |
|---|---|---|---|
| Samsung | Screen Mirroring | Source → Connect to a mobile device | Requires manual confirmation on the remote control |
| LG (WebOS) | Screen Share | Home → Apps → Screen Share | Supports Magic Link for quick pairing |
| Sony (Android TV) | Screen mirroring | Settings → Network & Internet → Built-in Chromecast | Works automatically through Google Home |
| Philips (Android TV) | Wireless Display | Settings → Network → Wi-Fi Miracast | May require enabling in hidden settings |
For TV owners Samsung And LG You may need to first launch the app on the TV itself before searching from your phone. While devices based on Android TV (Sony, Philips, Xiaomi TV) are often ready to work immediately after switching on, if they are on the same network.
If the automatic search doesn't yield results, try using a PIN code. Some TV models display a four-digit code on the screen when you first connect, which you must enter on your smartphone. Redmi 8T to establish a secure connection.
What to do if the TV is not found?
Make sure your router's "AP Isolation" feature isn't enabled, as it prevents devices on the network from seeing each other. Also, try temporarily disabling your antivirus or firewall software.
Streaming videos from YouTube apps and other services
A scenario that deserves special attention is when you need to broadcast not the entire phone screen, but a specific video from an app. Services like YouTube, ivi or Okko have a built-in Cast function. This is the most energy-efficient option, as the phone only acts as a remote control, and the TV downloads video directly from the internet.
To launch, find the rectangle icon with waves in the corner (the Cast logo) in the app interface. Click on it. Redmi 8T will offer a list of available devices. After selecting the TV, the video will start playing on the big screen, and you can minimize the app, write messages, or even turn off your smartphone's screen—playback will continue uninterrupted.
This method is ideal for watching movies in high quality. 4K, as the video decoding load falls on the TV's processor, not the phone's battery. Furthermore, incoming calls or notifications won't interrupt your viewing experience, as the video stream is separate from the OS interface.
- 🎬 Open the video in the YouTube app.
- 📡 Click on the broadcast icon in the corner of the player.
- 📺 Select your TV from the list.
- ▶️ Control playback from your phone or remote control.
Solutions to common problems and errors
Despite the simplicity of the technology, users may experience problems when connecting Xiaomi Redmi 8T TV. One common cause is outdated router or TV software. Check for firmware updates for both devices, as manufacturers frequently release patches to improve compatibility.
If the image is streaming but the sound is missing or delayed, try changing the audio output settings in your phone's menu. Switching the Wi-Fi frequency from 5 GHz to 2.4 GHz can sometimes help if the signal in the room is unstable, although 5 GHz is preferable for transmitting high-resolution video.
If you experience frequent connection drops, make sure your phone doesn't go into power saving mode while streaming. In Settings MIUI You need to add streaming apps to the battery optimization exception list so that the system doesn't "kill" the data transfer process.
⚠️ Note: TV interfaces and MIUI versions are subject to update. The layout of menu items may change. If you don't find the feature described, search within the TV settings menu using the keywords "Screen," "Cast," or "Mirror."
It's also worth considering that older 802.11n routers may not be able to handle high-bitrate streaming video, causing a "squared" image. In this situation, it's recommended to move the router closer to the viewing area or use a wired connection for the TV, reserving Wi-Fi for the phone only.
Frequently Asked Questions (FAQ)
Is it possible to connect Redmi 8T to a TV without a Wi-Fi router?
Yes, this is possible if your TV supports Wi-Fi Direct. This feature connects your phone directly to the TV's wireless module, creating a direct connection without the need for a home router. However, data transfer speeds may be lower, and connection stability depends on the distance between the devices.
Why is there no sound when streaming video on TV?
Most often, the problem lies with the volume settings on your phone or TV. Check if the volume is turned down on one of the devices. Also, some audio codec formats may not be supported by the TV when mirroring. In this case, using apps with their own player (YouTube, VLC) that decode the audio automatically can help.
Does Wi-Fi connection affect mobile connection quality?
When actively using Wi-Fi to stream video to a TV, the phone's communication module operates in enhanced mode. Theoretically, an incoming call could interrupt the stream or cause desynchronization if using the Miracast protocol. The Google Cast (Chromecast) protocol is more resilient to interruptions, as the stream is sent directly from the server.
How do I turn off screen sharing?
To stop streaming images to your Redmi 8T, simply unlock the phone and tap "Disable" or "Stop" in the "Streaming" menu. You can also simply turn off your smartphone's Wi-Fi or turn off the TV, although the latter method doesn't always end the connection correctly.