Modern smartphones of the series POCO X3 They have powerful processors and high-quality displays, making them excellent multimedia tools. However, watching movies or photo galleries on a large TV screen is often preferable to a six-inch phone display. Fortunately, wireless signal transmission technologies make it easy to stream images without the hassle of wires.
Owners of Xiaomi devices and POCO often face the need to quickly display a presentation or video on a large screen. Wireless connection Wi-Fi is the most convenient method, as it doesn't require any additional cables or adapters. The entire process takes just a few minutes when configured correctly.
There are several methods for accomplishing this, from built-in system functions to third-party apps. The specific method you choose depends on your TV model and operating system version. AndroidIn this article, we'll take a detailed look at all available options and answer frequently asked questions.
Preparing devices for synchronization
Before you start the setup, you need to make sure that both devices are in the same network conditions. Wi-Fi network The network must be stable, and the router must function correctly. Connection issues often arise because devices "see" different frequencies or ranges.
Make sure yours is POCO X3 and Smart TV are connected to the same access point. If the router is dual-band (supports 2.4 GHz and 5 GHz), it's preferable for both devices to operate on the same band, although modern routers often combine them into a single network.
It's also worth checking for software updates on both devices. Outdated firmware on your TV may not support modern data transfer protocols, such as Miracast or DLNA.
Check if the device discovery feature is enabled on your TV. On some models Samsung or LG You need to manually allow external connections in the security menu.
Using the built-in "Broadcast" feature
The easiest and fastest way to display an image is to use the standard shell function MIUIIt is built into the system and does not require any additional software. This method is based on the protocol Miracast, which is supported by most modern TVs.
To activate the feature, pull down the notification shade. Look for the icon labeled "Broadcast" (sometimes called "Cast" or "Wireless Monitor"). If the icon isn't available in the quick access menu, tap the three dots or the edit icon in the corner of the notification shade to add it.
Once turned on, it will begin searching for available devices. Your TV should appear in the list. Click on it, and after a few seconds, the image will appear. POCO X3 will appear on the TV screen.
⚠️ Note: If your TV is not found, make sure that it has a signal receiving app running (for example, Screen Share on LG or Smart View on Samsung).
It's important to note that this method completely mirrors your phone's screen on your TV. All notifications, calls, and actions will be visible on the larger screen. To return control back to your smartphone, simply tap the "Stop" button in the floating window or notification shade.
Setup via the Google Home app
If the built-in function does not work or your TV supports the technology Chromecast built-in, the best solution would be to use the official app Google HomeThis is a universal tool for smart home control and content streaming.
Download the app from Google Play Store and sign in to your account. Once launched, the program will automatically scan the network and find connected devices, including Chromecast-enabled TVs.
Select your TV from the list of devices. In the control menu that opens, click "Cast screen." The system will ask for permission to record your screen—confirm.
| Parameter | Meaning | Description |
|---|---|---|
| Protocol | Chromecast | Google's standard for multimedia transmission |
| Quality | Up to 1080p/4K | Depends on Wi-Fi speed |
| Delay | Low | Optimal for video and photos |
| Battery | It is being spent | The phone screen should be lit. |
The advantage of this method is the connection stability and the ability to control the broadcast from other devices on the same network. However, it's worth remembering that Google Home requires Google services, which may be relevant for some regions.
Broadcast via YouTube and media players
Often users need to display not the entire screen, but a specific video from the internet. Applications like YouTube, Netflix or VK have a built-in Cast function. This is the most energy-efficient option, as the video is buffered by the TV itself, and the phone only acts as a remote control.
Open an application, for example, YouTube, on its own POCO X3Click the TV icon in the top corner of the player. Select your TV from the list.
The video will start playing on the big screen, and control buttons (pause, volume, rewind) will appear on your phone. You can minimize the app or even turn off your smartphone's screen—playback won't be interrupted.
Why is the video lagging?
If the video stutters when streaming via YouTube, try lowering the quality in the video settings on your TV. Often, the problem isn't with your phone, but with the internet speed your TV is receiving.
This method is ideal for watching movies, as the picture quality is often higher than with simple screen mirroring (Miracast), and the phone does not heat up as much.
Using third-party applications
In cases where standard methods don't work due to the specifics of your TV or Android version, third-party solutions come to the rescue. App stores offer a variety of utilities for organizing DLNA or Miracast connections.
One of the popular solutions is the application Web Video Caster or LocalCastThey allow you to stream not only videos from the internet, but also files stored in your phone's memory.
- 📱 Web Video Caster: Works great for streaming video from sites that don't have official TV support.
- 🎬 LocalCast: A powerful tool for transferring local files via DLNA protocol to any devices.
- 🖥️ ApowerMirror: Allows you not only to broadcast, but also to control your phone from your TV (requires installation of the application on the TV).
When installing such programs, carefully read the permissions. To function correctly, they require access to the local network and, in some cases, the ability to display on top of other windows.
⚠️ Please note: Free versions of third-party apps often contain ads that may block the image on your TV while connected.
Solving common connection problems
Despite the simplicity of the technology, users sometimes encounter errors. The most common problem is "Device not found." This almost always means that POCO X3 and the TV are on different subnets, or one of them uses mobile Internet instead of Wi-Fi.
Another common error is audio and video desync. This can occur if the Wi-Fi signal is weak. Try moving closer to the router or rebooting it.
☑️ Connection diagnostics
If there's a picture but no sound, check the volume settings on the TV itself, as sometimes the audio output doesn't switch automatically when connected. It's also worth checking that your smartphone isn't set to "Do Not Disturb," which could block system sounds.
In rare cases, antivirus software on your router or phone may block ports required for media streaming. Try temporarily disabling the antivirus for diagnostic purposes.
Why is only part of the screen being broadcast or are there black bars?
This is due to the different aspect ratios of smartphone and TV screens. TVs typically have a 16:9 aspect ratio, while modern phones are more elongated (19:9 or 20:9). When mirroring, the system either crops the edges or adds black bars to the sides to maintain the aspect ratio. This cannot be changed programmatically over a wireless connection.
Can I play games on TV via Wi-Fi with POCO X3?
Technically, this is possible using the "Broadcast" feature, but it's not recommended for fast-paced games. Input lag over Wi-Fi ranges from 100 to 300 ms, making shooters and racing games unplayable. This method is suitable for static strategy games or trivia games.
Does it use a lot of traffic when connected?
Screen mirroring (Miracast) doesn't consume internet traffic, as data is transferred directly between devices over the local network. However, if you're watching online videos via YouTube, your internet traffic is charged at the normal rate, according to your provider's rates.