Xiaomi’s modern smartphones have powerful cameras and great microphones, but even the best screen on a smartphone often doesn’t seem big enough when it comes to video conferencing with colleagues or calling family. Being able to display a call image on a big screen on a TV or computer monitor solves a host of problems, from eye fatigue to having to show documents in real time. Owners of devices with a MIUI shell or the new HyperOS have several built-in and third-party tools to accomplish this task without losing communication quality.
In this article, we will discuss in detail all available ways to broadcast a video call, including the use of the Google Cast standard, the proprietary “Translation” function and wired methods of connecting via USB-C. You will learn how to configure Wi-Fi Direct for stable data transfer and what nuances exist when working with applications like Zoom, Skype or WhatsApp.
It is worth noting that the quality of audio and video transmission depends on the bandwidth of your wireless network. Before you start setting up, make sure that your router supports the 5 GHz standard, as this significantly reduces the latency of the video stream. We will consider both the standard system tools and proven third-party solutions that will help organize communication on the large screen.
Use of the built-in Translation function in MIUI and HyperOS
The easiest and most reliable way to bring an image from a Xiaomi smartphone to the big screen is to use a system function, which in different versions of the firmware can be called Translation, Wireless Monitor or Cast. This technology is based on the Miracast protocol, which allows you to duplicate the phone screen on the TV without having to install additional software on the receiving device, if it supports Smart TV.
To activate the function, you need to lower the notification curtain and find the corresponding icon. If it is not in quick access, you should go to the settings through the Settings path → Connection and Sharing → Broadcast. Here the system will start searching for available devices on the local network. It is important that both the smartphone and the TV are connected to the same Wi-Fi hotspot, otherwise they will not “see” each other.
⚠️ Note: When you duplicate the screen through Miracast, the video stream may have a slight delay (about a time frame). 1-2 It is normal to watch videos, but can be uncomfortable in a live conversation. Try to look at the camera of your smartphone rather than the TV screen to avoid the self-talk effect».
Once you select your TV, the smartphone desktop image will appear on a large panel. Now you can run any video calling app — whether it’s a standard Xiaomi “calling” or Google Duo or Telegram. The sound will also be transmitted to the external speakers of the TV, if the audio settings when connected are selected.
Broadcasting via Google Home and Chromecast
If your TV is equipped with a built-in Chromecast module or a console with this functionality is connected to it, using the Google Home app will be the most stable option, which often provides better picture quality and lower latency compared to Miracast, as it uses Google’s more advanced video compression algorithms.
To get started, download and install the Google Home app from the Play Market Store. Once installed, the app will automatically scan the network and find available devices. Select your TV from the list and click the "Cast my screen" button. The system will warn you that all actions on the screen will be broadcast, including notifications - confirm the action.
- 📺 Open the Google Home app on your Xiaomi.
- 📡 Make sure your phone and TV are connected to the same Wi-Fi network.
- 🖱️ Click on the device icon and select “Translate screen».
- 📞 Run a video call in any messenger.
The thing about this method is that it allows you to use your smartphone as a camera and your TV as a monitor, and you can use the call control (mute, termination) on your phone, which is convenient if you want to quickly turn off the microphone without getting out of the couch. However, you should consider that when you call your phone, the image on your TV can be interrupted or decreased depending on the Android version.
Xiaomi owners often point out that to work smoothly through Google Home, it is advisable to turn off power saving for this application. Go to Settings → Battery and Performance, find Google Home and set the “No Limits” mode, which will prevent connection breakage during a long conversation.
Wired connection via USB-C to HDMI
For those with maximum quality and zero latency, wired connectivity is the ideal solution. However, there is an important technical nuance here: not all Xiaomi smartphones support video output via a USB-C port. This feature, known as DisplayPort Alt Mode, is available mainly in the flagship models of the Xiaomi Mi series, Xiaomi 12/13/14 Pro and some Redmi K models.
If your device supports video output, you will need a special adapter. USB-C to HDMI. After connecting the adapter to the phone and HDMI-And as you go to the cable to the TV, you automatically duplicate the image. Unlike wireless methods, there's no compression, which gives you a crystal clear picture. 4K, If TV supports it.
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Check the specification of your model on the official Xiaomi website. If the specifications of the USB port indicate only "USB 2.0", video output via cable will not work, and you will have to use wireless methods.
The advantage of the wired method is also that the smartphone does not discharge during a conversation, but on the contrary, can be charged if the adapter has an additional power port (PD).This is critical for long conference calls, where the smartphone battery can not withstand the load of the camera and data transfer.
In rare cases, when the phone does not see the display, you may need to switch the USB mode. To do this, in the developer menu (which is activated by seven times pressing the build number in About Phone), you need to find the option “Select USB configuration” and try to change the mode from “Charge” to “MTP” or “PTP”, although most often the switching happens automatically.
Setup video calls through PCs and emulators
Another effective way to bring a call to the big screen is to use the computer as an intermediary. If you have a PC with a webcam or a smartphone camera connected, you can use desktop versions of messengers. However, if the goal is to use a Xiaomi camera, but on a monitor screen, you can use the "Projection" function in Windows 10/11 or third-party software.
Microsoft's Phone Link app lets you stream your Android screen to your computer. Install the app on your PC and the interface client on Xiaomi. Once you set up the Apps or Phone section, you can see the screen in your Windows window. When you run a video call on your phone, you'll see the person on the monitor.
The alternative is to use emulators or specialized streaming programs such as Scrcpy (for advanced users). USB Minimal latency and high bitrate. USB developer-menu.
- 💻 Install the drivers. ADB computer.
- 🔌 Connect your phone with a cable to your PC.
- ▶️ Run the scrcpy command in the command line.
- 🎥 The phone image will appear in a separate window.
This method is especially popular among bloggers and those who conduct training videos, as it gives you complete control over the image. You can zoom in on the window, record what is happening on the PC screen, and use the computer keyboard to control some functions, if the application supports it.
☑️ Checking the broadcast readiness
Features of work in popular applications
Different video applications respond differently to changing resolution and orientation when they display on a TV. For example, Zoom and Skype have their own video settings that may conflict with the system broadcast. Often, when a video call is launched, the system tries to switch the resolution and the picture on the TV turns black or distorts.
WhatsApp and Viber video calls can be vertical by default, and the horizontal TV screen will have black bars on the sides, and some apps allow you to force the image to turn, but most often you have to turn the smartphone itself, which is not always convenient if it is fixed.
| Annex | Support for landscape regime | Stability through Cast | Note |
|---|---|---|---|
| Zoom | Complete. | Tall. | It is better to use a native app on a Smart TV if you have one. |
| Skype | Complete. | Medium | May require restarting when HDMI is connected |
| Telegram | Partial | Tall. | Video calls are stable, but the interface can swim |
| Limited. | Medium | He often stays in portrait orientation. |
In this case, instead of a video stream, a black screen can be displayed on the TV with a message about the organization’s security policy.
⚠️ Note: When using public Wi-Fi networks (cafes, airports), the TV broadcast function may not work, as routers often block interaction between devices within the network (Client Isolation.
Resolving Sound and Latency Problems
One of the most common problems with bringing a call to the big screen is the desynchronization of sound and video or the complete absence of audio. In Android 11 and later, as well as in the HyperOS shell, audio output management has become more flexible, but sometimes requires manual intervention.
If the audio comes from the speaker of the phone and the video is on the TV, click on the speaker icon in the notification curtain or in the interface of the video call itself. There should be a choice of output device. If there is no such choice, try finding your TV in the Bluetooth settings (if it supports Bluetooth audio) and connecting it as a headset, leaving the video to be transmitted over Wi-Fi.
What to do if the sound wheezes?
To reduce latency, it is recommended to close all background apps on a smartphone that can consume traffic. High-resolution video calls require a stable channel. If you use a router with two bands, make sure that the devices are operating at 5 GHz, rather than 2.4 GHz, which is more prone to interference from microwave ovens and neighboring networks.
In some cases, resetting the network settings on the TV helps: Turn the TV off the socket for 30 seconds to clear the cache of network modules. This is a simple but effective procedure that solves 80% of the problems with the “dump” of the connection when broadcasting with Xiaomi.
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The stability of video on a large screen is 90% dependent on the quality of the Wi-Fi signal and the distance between the router and the devices. HDMI lacking these shortcomings.