In the digital age, mobile internet is no longer enough to comfortably view content. It is often necessary to display images from a Xiaomi or Redmi smartphone on a large TV screen, whether for watching a high-resolution movie, showing photos or running mobile games. Today’s Mi TVs have extensive functionality for wireless and wired data transmission, but users do not always know how to activate these functions correctly.
There are several proven ways to synchronize devices, each with its own features and applications: You can use Mi Cast built-in system features, third-party apps or physical cables to achieve a stable connection. The choice of the specific method depends on your TV model, the version of the Android operating system and the quality requirements of the signal transmitted.
In this guide, we will take a look at all the connectivity options available, look at the nuances of local network configuration, and provide solutions for common problems. A critical condition for wireless transmission is that both devices are on the same Wi-Fi router subnet, even if they are connected to the same router but at different frequencies (2.4 GHz and 5 GHz), the broadcast may not work without the router being configured correctly. Let's get to the practical implementation.
Preparation of equipment and network
Before setting up, make sure your infrastructure is ready to transmit heavy video streams. The main requirement for wireless methods is a stable Wi-Fi connection. It is desirable that both the smartphone and the TV are connected to a 5 GHz network, as this provides higher bandwidth and lower signal latency compared to the 2.4 GHz band.
Check the software versions on both devices. On Xiaomi TV, you can do this through the settings menu, and on your smartphone in the About Phone section. Outdated versions of firmware may contain bugs that prevent device detection or stable operation of Miracast and DLNA protocols.
☑️ Checking before connection
Also, note the router mode: If you have AP Isolation enabled, devices will not be able to see each other on the LAN, which you need to turn off in the router settings to ensure the broadcast function works properly.
Use of the built-in Mi Cast function
The easiest and most native way for Xiaomi ecosystem is to use Mi Cast technology, which is based on the Miracast standard and allows you to duplicate the screen of your smartphone on your TV in real time without the delays typical of streaming over the Internet.
To activate the function on your TV, look for the Mi Cast or Wireless Projection app in the installed program list. Once the app is launched, the TV will go into the standby mode. On your smartphone, open the notification curtain and find the Translation or Project icon. If the icon is not present, you can add it through the Control Panel editing menu.
💡
If the device search doesn't work, try rebooting the router. Often the problem is overflowing the table. ARP-router addresses, which means new connections are not established.
Once you find a TV in the list of available devices, click on it. The TV screen may have a request for confirmation of the connection, which you need to receive by the remote control. Now the image from the smartphone is broadcast to the large screen. It is important to understand that when using this method, the smartphone screen should be turned on, since the video signal is generated in real time.
⚠️ Note: When using Mi Cast in game mode or watching high-bit video, there may be a slight delay between the action on the smartphone and the display on TV. This is normal for Miracast technology, which encodes the image on the fly.
Broadcasting via Google Home and Chromecast
Many modern Xiaomi TVs run on Android TV or have built-in support for Chromecast built-in technology, which allows you to stream content directly from apps or duplicate the entire screen of a smartphone using Google services.
To implement this method, you'll need a Google Home app installed on your smartphone. Once you run the app and log in to your Google account, it will automatically scan the network and find the available output devices. Select your TV from the list and click on Translate Screen.
- 📱 Open the Google Home app on your smartphone.
- 📺 Select your Xiaomi TV card from the device list.
- 🔗 Click on “Translate screen” and confirm the action.
The advantage of this method is the ability to control the broadcast from other devices connected to the same Google account. In addition, many applications, such as YouTube or Netflix, have their own Cast button, which works more stable and better than simply duplicating the screen, since the TV itself downloads the video stream from the Internet.
Application of third-party applications
If standard methods don’t work or the TV’s functionality is limited (for example, in models without Android TV), third-party solutions come to the rescue. Apps like TV Assistant, Cast to TV or Web Video Caster allow you to organize the transfer of media files and screens through the DLNA and AirPlay protocols.
The principle of such programs is to create a virtual server on a smartphone that transmits data to a client application installed on a TV or directly over the phone. IP-This is especially true for playing back video files stored in the phone's memory without having to convert formats.
Some apps offer advanced settings, such as changing the aspect ratio, setting subtitles or controlling playback using a smartphone accelerometer. However, it is worth considering that free versions often contain advertising, and the quality of video compression may be inferior to system solutions.
⚠️ Note: When installing third-party applications from unknown sources on your TV (via APK-There is a risk of system failure. Use only verified programs from the official Google Play Store on the site. TV.
Wired connection via HDMI
For users who want maximum image quality without compression and delay, wired connectivity remains the optimal solution. Xiaomi smartphones with a Type-C port that supports the DisplayPort Alt Mode standard can transmit video directly to the TV via the USB-C to HDMI adapter.
This method doesn't require network or software setup, but simply plugging the adapter into the smartphone, connecting it with an HDMI cable to the TV, and switching the TV signal source to the appropriate port, and the image will appear instantly in the original resolution.
It’s important to check your smartphone’s specs, as not all models support video output via USB.The flagship Xiaomi and Black Shark series usually have this feature, while budget models can only support charging and data transfer.
| Connection method | Delay (Latency) | Image quality | Dependence on Wi-Fi |
|---|---|---|---|
| Mi Cast (Miracast) | Low/Mediocre | High (up to 1080p/4K) | Yes (local area network) |
| Google Chromecast | Medium | High (adaptive) | Yes (Internet) |
| HDMI Cable | Absent. | Maximum (no compression) | No. |
| DLNA (Files) | Low. | Depends on the file. | Yes (local area network) |
Why is there no sound when connecting via HDMI?
Solution and optimization
Users may face a number of common problems during the setup process. Often, the TV simply does not see the smartphone in the list of available devices. First of all, you need to double-check whether the router is not on guest mode for one of the devices. Devices on the guest network are isolated from the main LAN and cannot communicate with each other.
Another common problem is desynchronizing sound and image, often treated by clearing the cache of the apps responsible for broadcasting, or updating the Wi-Fi module drivers on a smartphone, and in some cases, resetting network settings on both devices helps.
- 🔄 Reboot your router, smartphone and TV.
- 📡 Make sure that both devices use the same Wi-Fi frequency.
- 🛡️ Check the settings of antivirus or firewall on your smartphone.
If you plan to stream games, it is recommended to close all background apps on your smartphone to free up RAM and CPU time to encode the video stream, which will reduce the likelihood of friezes and twitches of the picture.
💡
Connection stability is 90% dependent on the quality of the Wi-Fi signal and the absence of interference in the air, and the distance to the router plays a critical role when using wireless methods.