Modern smartphones such as POCO X3 NFC or X3 Pro, have powerful displays, but sometimes you want to display the image on a larger screen for watching movies or presentations. Wireless connection via WiFi It's the most convenient and aesthetically pleasing solution, eliminating the need to search for adapter cables. This data transmission technology allows for content streaming with minimal latency if the network is configured correctly.
The setup process may vary depending on your TV model and operating system version. MIUI or HyperOSIn this article, we'll cover all the current methods, from built-in system functions to third-party applications. You'll learn how to use protocols. Miracast And DLNA to achieve the best result.
It's worth noting that connection stability directly depends on the router's signal quality. If you plan to stream high-definition video, 4K, make sure both devices are within range of a strong signal. Failure to do so may result in audio and video becoming out of sync.
⚠️ Important: Make sure your router supports dual-band operation (2.4 GHz and 5 GHz). For high-definition video streaming, using the 5 GHz network is highly recommended, as it provides higher throughput.
Checking compatibility and preparing the network
Before starting the procedure, you need to make sure that both devices are a smartphone POCO and Smart TV—connected to the same local network. This is a fundamental requirement for most wireless data transfer protocols to work. If one device is connected via mobile data and the other via a cable, the connection will fail.
Log into your router settings and check the list of connected clients. Often in apartment buildings, networks may have similar names, for example, Home_WiFi And Home_WiFi_GuestEnsure that devices are not separated into different VLANs or guest zones with client isolation.
It's also worth checking for software updates on your TV. Manufacturers often release patches that improve the stability of the modules. WiFi DirectOn a smartphone POCO X3 It is also advisable to activate geolocation, as Android requires it to find nearby devices.
- 📡 Check if the WiFi indicator is on on both devices.
- 🔄 Make sure your router assigns IP addresses automatically (DHCP).
- 📱 Unlock your smartphone screen before starting the search.
Using the built-in Cast function
In the shell MIUI, on which it is based POCO X3, there is already a built-in image output tool. It works based on the standard Miracast, which is supported by most modern TVs. This method allows you to completely mirror your smartphone's screen, including the desktop and running apps.
To activate, pull down the notification shade and find the "Cast" icon. If it's not in the quick access menu, tap the edit menu button (usually three dots or a pencil) and drag the icon to the visible area. Once activated, it will search for available devices within range.
Once the TV appears in the list, click on its name. A connection confirmation prompt may appear on the TV screen, which you'll need to confirm with the remote. After that, the image from your smartphone will appear. POCO will appear on the big screen.
☑️ Check before connection
If your TV isn't listed, it's possible that the TV itself doesn't have the app running to receive the signal. On models Samsung this can be called Screen Mirroring, and on LG — Screen ShareFind the appropriate app in your TV menu and launch it before searching from your phone.
⚠️ Please note: When using the screen mirroring feature, your smartphone may become significantly hot due to the processor and WiFi module operating under high load. It is recommended to remove the protective case for better heat dissipation.
Streaming via YouTube and Netflix apps
If you simply want to watch a video and not share your entire smartphone screen, it's best to use the built-in Cast feature within apps. This is the most energy-efficient option, as the phone only acts as a remote control, and the TV loads the video stream itself.
Open the app YouTube on POCO X3 and find the video. At the top of the player or in the corner of the video, you'll see a special icon—a rectangle with WiFi waves in the corner. Click it and select your TV from the list.
A similar algorithm works in Netflix, IVI and other streaming services. The main advantage of this method is that you can minimize the app or even lock your phone, and playback on your TV will not be interrupted. This also saves battery life.
What should I do if the broadcast icon doesn't appear?
The icon may not appear if the devices are on different networks or if the app doesn't have access to the local network. Check permissions in Android settings: Apps → YouTube → Permissions → Local Network.
Connecting via Google Home and Chromecast
For TVs with built-in function Chromecast or a connected set-top box Chromecast from Google, the main management tool will be the application Google HomeIt allows you to manage multimedia content and broadcast browser tabs. Chrome.
Install the application Google Home from the store Play Market and sign in to your account. The program will automatically detect devices on your network. Select your TV and click the "Cast my screen" button.
This method is especially convenient if the built-in MIUI feature is unstable or has significant lag. Google's protocol often provides smoother picture quality and better audio synchronization. However, it requires Google services, which is relevant for global versions. POCO X3.
| Method | Delay | Quality | Battery consumption |
|---|---|---|---|
| Miracast (Broadcast) | Average | High | High |
| DLNA (Media Player) | Low | Maximum | Average |
| Google Cast | Low | High | Short |
| Third-party applications | High | Depends on the network | High |
Third-party streaming apps
In cases where standard tools fail, specialized applications from Google PlayThe market leaders are Web Video Caster And TV CastThey can extract video streams from browsers and send them to TVs, bypassing website restrictions.
Application Web Video Caster This is especially useful for watching videos from websites that don't have a built-in streaming button. You simply open the website within the app, it analyzes the page, finds the video stream, and offers to send it to the selected device.
Another powerful tool is BubbleUPnPThis is a professional tool for working with media servers. DLNAIt allows you to stream not only video, but also music and photos in high quality, supporting complex audio formats that TVs' built-in players may not be able to handle.
- 📺 Web Video Caster — the best choice for browser broadcasting.
- 🎵 BubbleUPnP — ideal for audiophiles and local media libraries.
- 📱 LocalCast - simple interface for fast file transfer.
Solution and connection problems
Even with perfect setup, technical glitches can still occur. One common issue is that the TV isn't visible in the device list. In this case, try rebooting the router, as the WiFi module may have frozen after being on for a long time. Temporarily disabling mobile data on your smartphone can also help.
If there's a picture but no sound or it's out of sync, the problem may be with the codec settings. Try changing the output resolution in the streaming settings. POCO or update the app you're using to stream. Clearing the app's cache can sometimes help. Settings → Apps → All apps → Broadcast → Clear cache.
In some cases, the antivirus or firewall on the router may block the ports required for MiracastCheck your router's security settings and ensure that AP Isolation is disabled, otherwise devices will not be able to "see" each other within the network.
⚠️ Note: Menu interfaces and item names may vary depending on the MIUI firmware version and TV model. If you don't find the item you're looking for, search for a similar option or consult the manufacturer's official documentation.
Comparison of wired and wireless connections
Despite the convenience of WiFi, a wired connection via a USB-C to HDMI adapter remains the king of stability. If you plan to play games with POCO X3 On a large screen, a wireless connection can introduce noticeable input lag, which is critical for shooters and racing games.
The wired method is unaffected by interference, channel congestion from neighbors, and your router's speed. However, it requires an additional adapter and ties you to the TV via a long cable. For static movie viewing, WiFi is more convenient, while a cable is better for gaming.
Technology WiFi 6, supported POCO X3, significantly reduces the gap between wireless and wired connections. If your router and TV also support this standard, the delay during streaming becomes virtually imperceptible to the human eye.
Why doesn't the TV detect the POCO X3 phone?
Most often, the cause is that the devices are connected to different router frequencies (2.4 GHz and 5 GHz) with different isolation levels, or the TV isn't in signal reception mode. Also, check if the router is configured to block connections between clients.
Is it possible to display a screen without a Smart TV?
Yes, you'll need an external set-top box, such as a Xiaomi Mi Stick, Chromecast, or Android Box, which connects to a regular TV's HDMI port and creates the necessary environment for receiving the signal.
Does broadcasting affect internet speed?
Using DLNA and Google Cast (using your phone as a remote control) doesn't consume internet speed; traffic flows directly from the router to the TV. Screen mirroring (Miracast) may not use the internet at all if the content is local, but the WiFi channel will be busy transmitting the video stream.