Modern Xiaomi TVs offer a wide range of features, but users often want to bring content from a smartphone to the big screen, such as viewing photos, running videos from an unverified source or showing a presentation. Owners of Redmi and Poco devices have the advantage of deep ecosystem integration, but standard protocols work with other brands.
There are several proven synchronization methods, such as wireless transmission over Wi-Fi, wired interfaces or specialized applications, and the choice of the specific method depends on your goals, your TV model and your free time. In this article, we will discuss each option in detail so that you can enjoy content at maximum resolution.
Some methods require stable connection, while others work autonomously. It is important to understand the difference between a simple mirror display of a screen and the broadcast of media files. Mirror completely copies the image from the phone's display, whereas DLNA or Chromecast only transmits the media stream, allowing you to use the smartphone for other tasks.
Preparation of equipment and network
Before you start setting up, make sure that both devices are in the same network conditions. Most connectivity problems arise precisely because gadgets "see" different routers or use different signal frequencies. Make sure your router supports 802.11ac or newer standards for stable video transfer in 4K.
Check the software's relevance. On your TV, go to Settings menu → About TV → System info and check the Android TV or PatchWall version. On your smartphone, it's also recommended to upgrade to the latest available version, as older Wi-Fi drivers may not work properly with new broadcast protocols.
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If your router is giving away a network at 2.4 GHz and 5 GHz with different names (SSID), make sure that both the TV and phone are connected to a 5 GHz network for maximum data transfer speed.
For wired connectivity, you may need an additional adapter. Owners of modern smartphones with a Type-C port must make sure their device supports MHL or DisplayPort Alt Mode technology. Without this feature, the cable method will not work, regardless of the cable quality.
Wireless connection via built-in Chromecast
The most popular and convenient way for most users is to use the built-in technology of Google Cast. Virtually all modern Xiaomi and Redmi TVs have a Chromecast built-in license module. This allows you to stream content directly from applications, bypassing full screen mirroring, which saves battery power of the phone.
To start the broadcast, open the app you want to show content (such as YouTube, Netflix or VK Video) and find the wave rectangle icon in the corner of the screen. Once you click, the system will suggest a list of available devices. Select your TV from the list.
- 📺 Open the app with video content on your smartphone.
- 📡 Make sure your phone is connected to the same Wi-Fi network as your phone. TV.
- 👆 Click the broadcast icon and select Xiaomi TV.
- ▶️ Playback control remains on the phone, but the video goes through the TV's Internet channel.
This is ideal for watching online video, because the quality of the picture is independent of the power of the smartphone processor. The TV itself decodes the stream using its resources. However, for games or displaying menu settings, this method is not suitable, since it does not transmit the entire image of the phone interface.
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Chromecast technology does not broadcast a phone screen, but a link to a video stream, so the TV should have direct access to the Internet.
Screen broadcast via Miracast (Wireless Monitor)
If you want to show exactly what's happening on your smartphone screen (menu, games, browser), use the Wireless Monitor feature. In the Xiaomi ecosystem, this technology is often called Mi Drop or simply Translation. It's based on the Miracast standard, which creates a direct Wi-Fi connection between devices.
On a Xiaomi TV with a PatchWall shell, you need to launch the Wireless display app. On some models, it is already built into the launcher, on others, it must be found in the Application folder.
☑️ Checking before connecting Miracast
On Xiaomi and Redmi smartphones, open the notification curtain and find Translation or Cast. If that's not the case, go to Settings → Connection and Sharing → Broadcast. The system will start looking for available displays. Select your TV and the image will be duplicated.
⚠️ Note: When using Miracast, there may be a noticeable delay (lag) between the action on the phone and the display on the phone. TV. This is normal for wireless technology and can interfere with dynamic gaming.
The quality of the image in this mode depends on the load of the Wi-Fi channel. If there are many devices on the network, artifacts are possible or a decrease in resolution. For stable operation, it is recommended to use a router with support for the 5 GHz band.
Using the Mi Home application for management
The universal tool for owners of Xiaomi equipment is the Mi Home app, which allows not only to manage a smart home, but also to carry out (throw) the screen, as well as transfer photos and videos from the gallery. This is especially true if standard methods for some reason do not work or require authorization.
Install the Mi Home app from Google Play or the App Store. Sign up for your Mi Account. Add your TV to the app if you haven't already. To do this, click Add Device and follow the instructions on the screen.
Inside the app, find your TV. The control menu often has a Translation feature, or the ability to select media files to display on the big screen, a convenient way to show photos from your birthday or a video archive stored in your phone's memory.
| Method | Delay. | Quality. | Network dependency |
|---|---|---|---|
| Chromecast | Low. | High (up to 4K) | High (we need internet) |
| Miracast | Medium | Depends on the signal. | Medium (local area network) |
| HDMI Cable | Absent. | Maximum. | It doesn't matter. |
| Mi Home | Low. | Good. | Medium |
The advantage of using the Mi Home is the ability to remotely control. You can use the phone as a remote, type text from the keyboard of a smartphone or even broadcast the sound to connected Bluetooth headphones without disturbing others.
Wired connection via HDMI
For gamers or those who want maximum image quality without compression, a wired connection is ideal. You will need a USB-C to HDMI adapter and a regular HDMI cable. Make sure your smartphone supports video output (DisplayPort over USB-C technology).
Connect the adapter to your phone, and connect the HDMI cable to the adapter and TV, and switch the signal source on the TV to the appropriate port (e.g. HDMI 1 or HDMI 2).
Procedure:
1. Connect the cable to the TV.
2. Connect the adapter to the cable.
3. Connect the adapter to the smartphone.
4. Select the HDMI source on the TV remote.Power is an important nuance: When broadcasting via HDMI, a smartphone can quickly run out. Many high-quality adapters have an additional USB port to connect the charger, which allows you to play and charge at the same time.
Why isn't the cable working?
⚠️ Attention: When using cheap adapters without additional power, unstable operation or screen flickering can occur.
Solution (Frequent problems)
Even when you set it up properly, you can crash. If the TV can't see the phone, try restarting both devices. Often the problem lies in the router or TV's hanging network module. Pull the TV power cord out of the socket for 10 seconds to reset the system's cache.
Another common reason is different regions in settings: If your Google account on your phone is registered in one country and your TV is set to another region, some services (especially Chromecast) may block the connection.
Antiviruses and firewalls on the router can also block device detection protocols (UPnP, SSDP). Try temporarily disabling protection or adding devices to the trusted list. For advanced users, check if the Wi-Fi clients (AP Isolation) are isolated in the router settings.
If there is sound and no image, check the screen resolution. Some older TV models don't support output above 1080p. Go to the phone's settings (Settings → Connected Devices → Connection settings) and try to lower the resolution or refresh rate.
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Rebooting your router and TV solves 80% of device detection problems on your local network.