Synchronization of TV and smartphone: why is it necessary?
Modern Xiaomi TVs (Mi TV A2, P1, Q2, and others) support many ways to interact with smartphones, from simple file transfer to full-screen duplication, and this integration opens up a lot of possibilities: viewing photos from your phone on a large screen, streaming videos from apps, using your smartphone as a remote control or even a game controller.
But not all users know that you can configure your connection without the extra wires โ you can have built-in Mi Share, Google Cast, or Miracast. In this article, we'll look at all the current synchronization methods, their pros and cons, and the common bugs that prevent successful connectivity.
Important: If your TV is released before 2019 (e.g. Mi) TV 4A First revisions, some features may be missing or require firmware updates. Check the version in the Settings menu โ On TV.
1. Connect via Wi-Fi Direct (Mi Share)
This is the easiest way to transfer files between Xiaomi TV and Xiaomi/Redmi/Poco smartphone. Wi-Fi Direct technology creates a direct network between devices without a router, and the proprietary Mi Share application makes it easier to exchange data.
To activate the function:
- ๐ฑ On your smartphone: open Settings โ Connection and sharing โ Mi Share and enable visibility for other devices.
- ๐บ On TV: Go to Settings โ Network and Internet โ Wi-Fi Direct and select your phone model from the list.
- ๐ Confirm pairing on both devices (entry may be required) PIN-code).
After you connect, you can:
- ๐ท Transmit photos and videos in original quality (without compression, as in instant messengers).
- ๐ต Play music from a smartphone on TV speakers.
- ๐ Send documents (PDF, Word) for viewing on the big screen.
โ ๏ธ Note: Wi-Fi Direct transmission speed depends on the version of the Wi-Fi standard on your TV. Wi-Fi 6 models (e.g. Xiaomi) TV Q2 2023) share files 2-3 times faster than devices with Wi-Fi 4.
2.Duplicate screen by Miracast
Miracast is a wireless image and sound transmission standard that all Xiaomi TVs on Android TV support. Unlike Wi-Fi Direct, it duplicates the entire screen of the smartphone, not individual files.
- ๐ฎ Big screen games (such as Genshin Impact or Call of Duty Mobile).
- ๐บ Streams (Twitch, YouTube) without quality restrictions.
- ๐ผ Presentations or demonstrations of application work.
Instructions for connection:
- On TV: Settings โ Devices โ Screen Connection โ Select Miracast.
- On Android: For MIUI: Settings โ Connection and Sharing โ Transfer to screen. For pure Android: Settings โ Devices โ Screen Transfer.
Choose the name of your TV from the list of available devices.
On the iPhone, Miracast is not supported โ instead, use AirPlay (available on Xiaomi TVs with Android TV 11+ firmware).
Turn off VPN on your smartphone | Check that both devices are on the same Wi-Fi network | Update your TV firmware | Close the background apps on your phone-->
| Parameter | Miracast | Google Cast | Wi-Fi Direct |
|---|---|---|---|
| Internet is required | โ No. | โ Yes. | โ No. |
| Max, permission. | 4K@30Hz | 4K@60Hz | - (files only) |
| Delay (lag) | 100-150 ms. | 50-80 ms. | โ |
| Support for iOS | โ No. | โ Yes) | โ No. |
3.Using Google Cast (Chromecast)
If your Xiaomi TV runs on Android TV or Google TV, it has Google Cast, a technology similar to Chromecast, which allows you to stream content from supported apps (YouTube, Netflix, Spotify) directly to your TV without loading your smartphone.
How it works:
- Make sure your phone and TV are connected to the same Wi-Fi network.
- Open an app that supports Cast (like YouTube).
- Press the transmission icon ๐ค (Usually in the upper right corner and select your Xiaomi TV.
Step-by-step:
- Buy a certified adapter (e.g. Xiaomi USB-C to HDMI or Baseus).
- Connect the adapter to the smartphone, and HDMI-cable to the TV (port) HDMI ARC or any other).
- On the TV, select the signal source: HDMI 1/2/3 (depending on the port).
- On the smartphone, you may need to turn on USB Debugging Mode (Settings โ About Phone โ MIUI Version โ 7 times press to unlock).
Advantages of wired connection:
- ๐ฎ Delay. <20 MS (critical for shooters or racing).
- ๐ Simultaneous charging of the phone (if the adapter supports Power Delivery).
- ๐ถ Stable connection without interference.
โ ๏ธ Note: Not all adapters support the output to 4K@60For maximum quality, choose models with a Realtek chip RTD2173 or Parade PS175.
5. Controlling the TV from a smartphone
In addition to content transfer, the smartphone can be used as a remote control or even a game controller, and for this there is an official Mi Remote app and third-party solutions.
Customization of Mi Remote:
- Download the app from Google Play or the App Store.
- Select the category Televisions โ Xiaomi brand.
- Point the phone camera to the TV to automatically adjust the IR port (if any).
- For non-IR models (such as the Xiaomi TV A2 43) connect via Wi-Fi or Bluetooth.
Additional opportunities:
- ๐ฎ Use your smartphone as a gamepad for Android TV-Games (via Steam Link or Moonlight).
- ๐ Configure voice control via Google Assistant or Alice (if the TV supports voice control).
- ๐ฑ Install the remote widget on the main screen for quick access.
How to connect DualSense gamepad to Xiaomi TV?
Solving typical problems
If the Xiaomi TV doesnโt connect to your smartphone, check out the following:
| Problem. | Possible cause | Decision |
|---|---|---|
| TV not visible on the list of devices | Wi-Fi Direct or Miracast is disabled | Enable Settings โ Network โ Wi-Fi Direct |
| Lags when transmitting screen | Weak Wi-Fi signal | Switch to 5GHz or use HDMI |
| No sound at Miracast. | The wrong sound source is selected on the TV. | Check the settings โ Sound โ Exit |
| The app does not support Cast | DRM-contention | Use Miracast or HDMI |
If nothing helps, reset your network settings on your TV:
Settings โ System โ Reset โ Resetting network settingsAfter that, reset your Wi-Fi connection and try to sync your devices again.
๐ก
For Miracast or Wi-Fi Direct to work smoothly, both devices must support the same Wi-Fi standards (e.g. 802.11ac). If the TV only runs Wi-Fi 4 and the phone only runs Wi-Fi 6, incompatibility may occur.