Modern Xiaomi and Redmi smartphones have powerful screens, but viewing content in a group or enjoying a truly cinematic experience often requires a larger screen. Fortunately, wireless data transfer technologies make it possible. broadcast an image from a mobile device to a big-screen TV without the need for extra cables. This is especially important for owners of smart TVs that support standard communication protocols.
The connection process may vary depending on the device you are using. transmission protocol (Miracast, DLNA or Chromecast) and operating system versions MIUIIn most cases, you won't even need to install third-party apps, as the necessary functionality is already built into the manufacturer's interface. However, for stable operation, it's critical that both devices are on the same local network.
In this guide we will go through all the available methods. wireless connection, from standard system tools to specialized utilities. We'll also cover common issues with audio lag and image desynchronization and offer specific solutions. You'll learn how to turn your gadget into a universal multimedia control panel.
Preparing equipment and setting up the network
Before you begin setup, you need to make sure your equipment is ready to transmit data. A stable connection is essential for any wireless broadcasting technology to work. Both devices—including your smartphone—are essential. Xiaomi/RedmiYour device and Smart TV must be connected to the same Wi-Fi network. If your router broadcasts 2.4 GHz and 5 GHz networks with different names, make sure the devices are connected to the same network, although modern routers often combine them under a single name.
Make sure your TV has Smart TV enabled and Wi-Fi is turned on. Some models require you to manually launch the wireless streaming app, which may be called Screen Share, Miracast or Wireless DisplayWithout active standby mode on the TV side, the phone simply won't detect the target device in the list of available devices.
⚠️ Note: If you have a dual-band router, try switching both devices to the 5 GHz frequency. This will significantly increase bandwidth and reduce the likelihood of image lag when streaming high-definition video.
Also, make sure Bluetooth is enabled on your smartphone. Although the main data transfer is via Wi-Fi, the protocol Bluetooth Low Energy Often used for initial device discovery and handshake. Disable power saving mode on your phone, as it can limit background network activity, leading to connection interruptions.
Using the built-in "Broadcast" function (Miracast)
The most direct way to display an image from a Xiaomi or Redmi smartphone on a TV screen is to use the system function MiracastIn MIUI, it's often hidden in the additional features menu or notification shade. This method allows you to completely mirror your phone's screen, meaning everything that's happening on your mobile device's display, including notifications and the home screen, will be visible on your TV.
To activate it, open the notification shade and find the "Broadcast" icon. If it's not in quick access, go to Settings → Connection and Sharing → BroadcastThe system will begin searching for available devices. At this point, your TV should already be in Wireless Display mode. Once your TV's name appears in the list, tap it to pair it.
☑️ Miracast connection checklist
Once the connection is successful, you'll see a duplicate of your phone's screen on the larger display. Please note that using this method may cause your smartphone to become noticeably warmer and drain the battery faster than usual. This is due to the high load on the video codec and a wireless module. For extended viewing, it's best to connect your phone to a charger.
Why might Miracast not work?
Miracast may not work if your TV is running an outdated firmware version that doesn't support modern encryption standards. The issue may also lie in your router settings: if "AP Isolation" is enabled, devices won't see each other, even if they're on the same network. Try temporarily disabling this option in your router settings.
Streaming via Google Home and Chromecast
Xiaomi and Redmi phone owners have full access to the Google ecosystem. If your TV supports the technology, Chromecast built-in Or if you have a Chromecast/Android TV set-top box connected, this will be the most stable option. Unlike Miracast, it uses the Google Cast protocol, which allows you to stream video directly from the server without overloading the phone's processor.
To get started, you will need an application Google Home, which can be downloaded from the Play Market. Install the app and sign in to your Google account. The program will automatically scan the network and find compatible devices. Select your TV from the list and click the "Cast screen" button. This method typically produces higher picture quality and minimizes input lag.
⚠️ Please note: App and TV interfaces are subject to update. Button locations and menu item names may differ from those described. Always consult the official manuals for your TV model if you have trouble finding the item you need.
The advantage of the method is through Google Home The advantage lies in the control options. You can use your phone as a remote control, adjusting the volume or pausing playback without leaving the couch. Furthermore, this method is better optimized for background operation: you can minimize the app or even answer a call, and the video streaming will not be interrupted, as the stream goes directly from the internet to the TV.
Broadcasting from specific applications (YouTube, Netflix, Kinopoisk)**
The most popular usage scenario is watching videos from online cinemas. Apps like YouTube, Netflix, Kinopoisk or ivi have a built-in casting feature that works independently of your phone's system settings. You don't need to mirror the entire screen; simply send a video link directly to your TV.
Open the app on your smartphone and start the video. In the player, find the streaming icon (the rectangle with waves in the corner). Tap it and select your TV from the list. The video stream will start playing on the big screen, and your phone will turn into a remote control. This is the most energy-efficient method, as the phone doesn't encode the video stream in real time.
It's important to note that some services may restrict the streaming of content with high levels of copyright protection (DRM) via the Miracast protocol. In such cases, using the in-app button is the only legal and functional way to mirror the image. If you attempt to mirror the screen while protected content is enabled, a black screen with audio may appear on the TV.
Comparison of connection methods: characteristics table
To help you choose the best option, let's compare the key features of the available technologies. Each has its own strengths depending on your goals: whether you just need to share photos with friends, watch a movie, or present a presentation.
| Characteristic | Miracast (Broadcast) | Google Cast | DLNA (Local Files) |
|---|---|---|---|
| Transmission type | Screen mirroring | Streaming | File transfer |
| Phone addiction | High (screen should be lit) | Low (can be folded) | Average |
| Picture quality | Depends on Wi-Fi signal | Adaptive (up to 4K) | Original |
| Battery consumption | High | Short | Average |
As you can see from the table, built-in app features or Google Cast are best for watching online videos. However, if you need to display your phone's settings or launch a game that doesn't have TV support, then you can't Miracast It's unavoidable. For viewing videos stored on your phone's memory, the DLNA method is ideal.
Troubleshooting: Lag, Black Screen, and Screen Tearing
Despite the convenience of wireless technology, users may encounter technical issues. One of the most common complaints is audio and video desynchronization. If the audio lags behind the video or vice versa, try rebooting the router. Often, the problem stems from a full router buffer or temporary issues with traffic distribution.
Another common issue is a black screen when trying to play a movie. This is almost always due to HDCP protection. If you use screen mirroring (Miracast) to watch paid content, the rights protection system blocks the image output. There's only one solution: use the cast button within the video service app itself, rather than the system "Cast" function.
- 📶 Weak signal: If the picture is frequently pixelated (breaks up into squares), move closer to the router or TV. Walls and appliances can block the signal.
- 🔄 Version conflict: Make sure that the apps on your phone (especially YouTube and Google Home) are updated to the latest version via the Play Store.
- 🔋 Energy saving: Aggressive MIUI settings can kill background processes. Add the streaming app to the battery exceptions list.
⚠️ Please note: If you're using a guest Wi-Fi network (such as in a hotel or dorm), streaming may not be possible. These networks often prohibit communication between guest devices for security reasons.
It's also worth mentioning the issue of connection interruptions during an incoming call. When mirroring your screen, a call can interrupt the broadcast or display the caller's image on the TV, which isn't always convenient. You can enable "Do Not Disturb" mode in your phone's settings while watching to avoid interruptions.
Using third-party applications for complex cases
If standard methods don't work, or your TV is an older generation Smart TV, third-party apps can help. The leader in this area is Web Video Caster or BubbleUPnPThey can "forward" a video stream to virtually any DLNA-compatible receiver, even if it doesn't support modern Google or Miracast protocols.
These apps work simply: you find a video in your browser or file manager, select "Send to device," and select your TV. The app acts as a server, broadcasting the data stream. This is a great way to revive an old Smart TV that's no longer receiving updates from the manufacturer but is still connected to the internet.
Is it possible to stream games from your phone to TV?
Technically, this is possible via Miracast, but for fast-paced games, the input lag will be too high, making the experience uncomfortable. The image will lag 0.5-2 seconds after the button press. For gaming, it's better to use a wired HDMI connection if your phone supports USB-C video output.
In conclusion, the Xiaomi and Redmi ecosystem offers a wide range of options for interacting with home appliances. Whether you're using a budget Redmi Note model or a flagship Xiaomi series, the underlying Android architecture ensures compatibility with most modern TVs. Proper network configuration and the right protocol will allow you to enjoy content on the big screen without unnecessary wires and complex setup.
Frequently Asked Questions (FAQ)
Why doesn't my phone see my TV in the list of available devices?
Most likely, the devices are connected to different Wi-Fi networks (for example, one to a guest network and one to the main network) or to different frequencies on an isolated router. Check that both devices are on the same subnet. Also, make sure the signal receiving app (Screen Share) is running on the TV.
Is it possible to stream video if there is no internet, only a local network?
Yes, Miracast and DLNA technologies work locally and don't require internet access. However, internet access is still required on at least one device to initially search for devices and to use some apps (such as YouTube).
Does streaming affect video quality in online cinemas?
When using the "Cast" button within the app, quality is adjusted automatically based on your internet speed. When using screen mirroring (Miracast), quality may be reduced due to the phone compressing the video stream before sending it to the TV.
Will the broadcast work if the phone screen goes dark?
When using Google Cast or built-in video service features, yes, the stream will continue. When using the system's "Cast" feature (screen mirroring), turning off the phone's screen usually stops the image transmission, as the video signal is interrupted.