Modern multimedia capabilities make it easy to display the contents of a smartphone or tablet screen on a large display, which is especially true for owners of the Xiaomi ecosystem. The process of transmitting video stream or duplication of images has become much easier thanks to built-in wireless protocols such as Miracast and Chromecast built-in. The user no longer needs to look for complex cables or adapters if both devices are on the same local network.
In this article, we will take a look at all the available ways to organize broadcasts, from standard system functions to third-party applications for specific tasks. You will learn how to set up a wireless monitor on Mi TVs and Redmi TVs, as well as possible connection problems.
To get started, make sure your TV is connected to the same Wi-Fi network as your mobile device, a fundamental requirement for most data protocols to work, as direct packet exchange occurs inside the router, and ignoring this rule is the most common reason why devices don’t see each other on the list of available receivers.
Preparation of equipment and network infrastructure
Before setting up, you need to make sure that the network equipment is in good condition and working correctly. The router should support IEEE 802.11n or higher, preferably in the 5 GHz band, which will provide sufficient bandwidth for high-resolution video transmission. If your router distributes both 2.4 GHz and 5 GHz networks, it is advisable to connect both devices to 5 GHz frequency to minimize interference.
Also worth checking out is the TV software. Go to Settings menu → About TV → System Update and make sure you have the latest version of Android TV or PatchWall installed. Manufacturers regularly release patches that improve the stability of the Wi-Fi Direct module and fix casting protocol errors.
⚠️ Note: If your router is configured with client device isolation (AP Isolation, TV and phone can't find each other even when they're on the same network, a feature often included in guest networks.
Check the status of the connection on the mobile device. In some cases, the Android system can warn you that there is no Internet connection in the Wi-Fi network if the router does not have access to an external network, but for local broadcasting this is not critical. IP-address DHCP-router.
Broadcasting through the built-in “Translation” function on Android
The most universal method for Android devices is to use the native “Translation” or “Wireless Monitor” function. In Xiaomi smartphones with a MIUI or HyperOS shell, this tool is often put in the notification curtain or in the “Connect and Share” menu, activating this feature triggers a search for available displays within the network range.
Once you find a Mi TV or Redmi TV on the list, you just click on the name of the TV, you may see a request for confirmation of connection on the TV screen, which should be received by the remote, from which point the image from the phone will be duplicated on the large screen in real time.
☑️ Checking before connection
It is worth noting that when using this method, the phone and TV screens are fully synchronized, which means that any notifications, incoming calls or messages will be visible to everyone in the room, and for privacy, it is recommended to activate the Do Not Disturb mode before you start watching.
The quality of the image you transmit depends on the signal strength and the load of the channel. If you notice a desynchronization of sound and video or “squares” in the image, try to approach the router or turn off other devices that consume traffic.
Using Google Chromecast built-in technology
Most modern Xiaomi TVs run on Android TV, which includes built-in support for Google Cast technology. Unlike full screen duplication, this method allows you to stream content from specific applications such as YouTube, Netflix or the Chrome browser, freeing the smartphone for other tasks.
To start the broadcast, open the supported app on your phone and find the icon Cast (a rectangle with waves in the corner). Once you select your TV from the list, the video stream will start playing directly to the TV controlled by the smartphone as a remote control, which reduces the load on the phone's battery and provides more stable playback.
| Parameter | Miracast (Translation) | Google Cast (Chromecast) |
|---|---|---|
| Type of transmission | Full screen duplication | Broadcasting content from the application |
| Impact on the phone | The screen is active, battery consumption is high | The phone can be used for other tasks. |
| Video quality | Depends on the power of the phone. | Maximum, depending on the speed of Internet TV |
| Support for iOS | Third-party software required | Through Cast-enabled apps |
What to do if the Cast button does not appear?
It’s important to understand the difference between these technologies: Miracast creates a direct connection between devices, whereas Chromecast uses Internet addressing. When using Cast, the TV itself loads the video stream, which often provides better picture quality, especially when watching 4K content.
Broadcast from Apple devices (AirPlay) to Xiaomi TV
Owners of iPhone and iPad devices may be faced with compatibility issues, as Apple’s native AirPlay protocol isn’t always present in the basic firmware of Xiaomi TVs. You can check this in the settings of the TV in the App section. → AirPlay.
If there is no built-in support, the solution is to install a third-party app from the Google Play Store on the TV itself, popular options being AirScreen, AirPin or Receiver for AirPlay. Once installed, the TV starts emulating the AirPlay receiver, becoming visible to Apple devices.
The connection process is standard: open Control Point on your iPhone, click Screen Replay, and select your TV from the list. The image will appear on the big screen almost instantly. To reduce latency in such applications, you often need to allow access to the microphone and local network.
⚠️ Note: When using third-party AirPlay emulators on Android TV There may be a slight delay in the image (up to the 2-3 This is normal for this technology and is not a fault of the equipment.
For best compatibility, it is recommended to select H.264 coding mode in the settings of the emulator app on your TV, as it is the most stable for streaming from iOS devices. Also make sure that the local network for the application used is turned on on on on the iPhone.
Connection problems and methods to fix them
Despite the simplicity of the technology, users can experience a variety of errors, and one of the common problems is when the phone sees the TV, but the connection is cut after a few seconds, often indicating an unstable Wi-Fi signal or conflict. IP-web-address.
Try rebooting the router by completely disconnecting it from power for 10-15 seconds, which will reset the ARP table and reassign addresses, and an effective method is to forget the Wi-Fi network on both devices and re-enter the password, which will eliminate errors in saved connection profiles.
- 📶 Weak signal: If the TV is connected through 2.4GHz in an apartment building, the channel can be congested by neighbouring routers.Switching to 5GHz solves the problem.
- 🛡️ Antiviruses: Third-party antiviruses or firewalls on PCs or in router settings can block ports required for the use of the software. DLNA Miracast.
- 🔄 Protocol version: Older phone models may not support new encryption standards WPA3, which are sometimes enabled on new routers by default.
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If the broadcast works, but the sound comes only from the phone, check the audio output settings in the player app itself or in the fast Android settings (the speaker icon).
If there is an image but no sound, check the HDMI settings (if you use an adapter) or make sure that the app does not have Video Only mode on the TV, often solved by simply switching the sound source in the media settings.
Alternative applications and wired connection
When wireless methods fail to produce the desired result or maximum stability is required, alternative solutions can be turned to: LocalCast or Web Video Caster app allows you to stream video files directly from the phone’s memory or link using the built-in TV player for decoding, which reduces the load on the smartphone.
For professional tasks where no delays are critical (such as presentations or games), consider a wired connection. With a USB-C to HDMI adapter, you can connect your phone directly to the HDMI port of your TV, in which case the phone will identify the monitor as an external display.
⚠️ Note: Not all smartphones support video output via USB-C. A port with standard support is required for operation MHL Check the specifications of your phone model before buying a cable.
Using a cable ensures that the signal is transmitted in its original quality without compression and compression artifacts that are characteristic of Wi-Fi transmission, but this limits the mobility of the device and requires a free HDMI port on the TV.
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A wired connection via USB-C to HDMI is the only way to get a picture without delay and compression, but requires port compatibility of the smartphone.
There are also specialized DLNA-servers that allow you to stream your media library from your computer to your TV through the Mi Video app or built-in media player, which is convenient for viewing heavy files stored on your PC hard drive without having to copy them to your phone.