Modern Redmi and Xiaomi smartphones offer powerful multimedia capabilities that often appeal to the big screen. Instead of viewing photos or videos on a small display, users prefer to display content on a TV. This is especially useful when viewing family albums, presentations, or online movie theaters.
There are several ways to mirror your phone's screen to your TV via Wi-Fi on Redmi devices, each with its own unique features. In this article, we'll cover the main screen mirroring methods, from built-in system features to third-party apps. You'll learn how to set up a wireless connection without the hassle of wires.
The basis for most methods is a protocol Miracast or technology Google ChromecastYour TV must also support Smart TV or have a connected set-top box. If both devices are on the same network, the setup process will only take a few minutes.
Preparing equipment and a Wi-Fi network
The first and most important step is ensuring a stable connection. For wireless data transfer to work properly, both devices—the Redmi smartphone and the TV—must be connected to the same Wi-Fi network. This is critical, as ignoring it will result in search errors.
Make sure your router is running in dual-band mode (2.4 GHz and 5 GHz). For high-resolution video streaming, especially 4K, the 2.4 GHz frequency is preferable. 5 GHzIt provides higher throughput and lower signal latency.
Also, make sure your TV has enabled the external device detection feature. This option may have different names in the Smart TV menu: Screen Mirroring, Projector or Wireless DisplayWithout activating this mode, the TV will be invisible to the smartphone.
⚠️ Important: If your router separates the 2.4 GHz and 5 GHz networks into different SSIDs (network names), make sure that both devices are connected to the same SSID and not to different bands, even if the names are similar.
In some cases, router antivirus settings or client isolation may block direct connections between devices. If you can't find your TV in the list of available devices, try temporarily disabling network security features to check.
Using the built-in "Cast" feature in MIUI
The MIUI interface installed on Redmi smartphones already includes the necessary image display utility. You don't need to download any additional software. This method is based on the Miracast standard and works with most modern Smart TVs.
To start the process, pull down the notification shade and find the "Broadcast" icon. If it's not on the main panel, click the edit button (usually three dots or a pencil) and drag the icon to the active area. Alternatively, go to Settings → Connection and Sharing → Broadcast.
Once enabled, your phone will begin searching for available devices. Select your TV's name from the list that appears. You may see a connection confirmation prompt on the TV screen, which you'll need to confirm with your remote.
- 📱 Open the MIUI Control Center by swiping down.
- 📡 Click on the "Broadcast" icon.
- 📺 Select your TV from the list of found devices.
- ✅ Confirm the connection on the TV screen.
Once paired successfully, your phone's image will be fully mirrored to the big screen. You can switch apps, show photos or videos, and everything will be visible on the TV. Picture quality depends on your Wi-Fi connection speed.
☑️ Pre-broadcast check
Broadcast via the Google Home app
If the built-in MIUI function does not find the TV or works unstable, the official application is a great solution Google HomeIt uses the Chromecast built-in protocol, which is supported by a huge number of TVs from various brands.
Download the app from Google Play Market and launch it. The program will automatically scan the network and find available Chromecast devices or TVs with built-in support for this technology. Make sure you're signed in to the same Google account as your other devices if syncing is required.
In the app interface, select your TV card. In the control menu that opens, click "Cast my screen." The system will notify you that the phone's audio and video will be broadcast to the TV.
⚠️ Note: When using Google Home, your entire smartphone screen is mirrored. This means incoming notifications, messages, and calls will also be visible on the TV to everyone in the room.
The advantage of this method is its highly stable connection and support for a wide range of video formats. Google Home also allows you to conveniently control the volume and launch content from supported apps with a single tap.
Broadcasting via YouTube and other apps
Often, users don't need to mirror their entire smartphone screen, but only want to display a specific video from an online cinema. Apps like YouTube, Netflix, ivi or Okko have a built-in Cast function.
Open the app on your phone and find the streaming icon (a rectangle with waves in the corner). It's usually located in the upper-right or lower corner of the interface. Tap it and select your TV from the list.
Unlike full-screen mirroring, in this case, the phone only acts as a remote control. The TV downloads video directly from the internet, saving battery life and avoiding the strain on the Wi-Fi network by streaming video from the phone.
Why does the video lag when broadcasting full screen?
When mirroring a phone's entire screen (Miracast), the video stream is encoded by the smartphone's processor in real time and transmitted over Wi-Fi. This places a high load on the device and network, which can lead to delays or reduced image quality, especially if the router is located far away.
If the cast icon doesn't appear, check if the app is updated to the latest version. Also, make sure the corresponding app is installed on your TV or supported by the Smart TV platform.
Comparison of connection methods
Each of the methods discussed has its advantages and disadvantages depending on your goals. MIUI's built-in casting is good for sharing the interface, Google Home is versatile, and direct casting from apps is the most cost-effective.
The table below compares the main characteristics of the methods for transmitting images from Redmi to TV.
| Method | Quality | Battery consumption | Delay |
|---|---|---|---|
| MIUI Broadcast | High | High | Average |
| Google Home | High | High | Low |
| YouTube Cast | Maximum | Short | Minimum |
| Third-party applications | Depends on the software | Average | High |
Choose a method depending on the task: system broadcasting is suitable for games or presentations, and for watching movies, it is better to use the built-in Cast in the player.
Troubleshooting connection issues
Despite the simplicity of setup, users may encounter difficulties. Often, the phone simply doesn't "see" the TV. First, check whether the guest network is enabled on the router. Devices on the guest network are isolated from each other and cannot exchange data.
Another common issue is a desynchronized time or Google service cache. Try restarting both devices: turn off and then on your TV and phone. This clears temporary network errors.
- 🔄 Reboot your router and modem.
- 📱 Update your Redmi phone software.
- 📺 Check for system updates on your Smart TV.
- 🔌 Disable the VPN on your smartphone if it is active.
If the image is transmitted but there is no sound, check the volume settings on your phone. Sometimes the sound remains on the mobile device and needs to be adjusted manually in the volume menu or Bluetooth settings.
⚠️ Please note: MIUI and Smart TV interfaces are constantly being updated. The layout of menu items or function names may differ from those described in the instructions. Always look for options that are similar in meaning.
Using third-party applications for specific tasks
In situations where standard methods don't work or advanced features are required (for example, mirroring the screen to older TVs via set-top boxes), third-party software can be used. The Play Market offers a variety of repeater apps.
Popular solutions include Web Video Caster, BubbleUPnP or TvCastThese apps can find devices even in complex network configurations and support streaming local files from your phone to your TV.
Install the selected app on your Redmi and, if necessary, the companion app on your TV (via the TV app store). Follow the instructions within the app to pair. These apps often allow you to stream video files in specific formats that the TV's built-in player can't handle.
Please note that free versions of these programs may contain ads. For continuous use and unlimited access, consider purchasing the premium version.
Why isn't my TV showing up in the list of devices?
This could be due to router settings (AP Isolation), differences in Wi-Fi bands (2.4 vs. 5 GHz), or the discovery service not running on the TV. Try restarting the router.
Is it possible to transmit an image without Wi-Fi?
Without a Wi-Fi router, you can use Wi-Fi Direct technology if both devices support it, or connect your phone via a USB-C to HDMI cable if your phone and TV support video output.
Does broadcasting affect internet speed?
Yes, streaming video over a wireless network consumes a significant amount of bandwidth. If you're watching a 4K movie from your phone on your TV, the download speeds of other devices on the network may decrease.
Is it safe to use third-party streaming apps?
Use only verified apps from the official Google Play store with many positive reviews. Avoid apps that require suspicious permissions.