How to turn Miracast on Xiaomi Mi TV 4S: A Complete Wireless Screen Transfer Guide

Wirelessly transferring images from your phone or laptop to the big screen has become an integral part of the modern multimedia experience. Xiaomi Mi TV 4S, despite its budget position in the lineup, supports Miracast technology, a standard that allows you to duplicate the screen of a device on your TV without additional adapters. However, many users face difficulties when connecting first: where to look for settings, why the device is not online or how to improve the broadcast quality in case of delays.

This article will not only explain how to turn Miracast on the Xiaomi Mi TV 4S, but also reveal the nuances of customization for different versions of firmware (including PatchWall and Google TV), explain the differences between Miracast and alternative protocols like AirPlay or DLNA, and provide solutions for 90% of typical problems. We tested the instructions on the models of Mi TV 4S 43, 50" and 55" - all the steps are relevant for devices based on Android TV 9.0/10.0.

What is Miracast and why is it better than alternatives?

Miracast is a Wi-Fi Direct wireless video and audio standard developed by the Wi-Fi Alliance. Unlike Chromecast (which requires a shared network connection) or DLNA (limited to media files only), Miracast creates a direct connection between devices without intermediaries, which minimizes latency and eliminates router dependency.

Key advantages for owners of Xiaomi Mi TV 4S:

• 🔌 No cables required: Miracast support is enough on both devices.
• 🎮 Minimum lag: delay is 30-50 ms (vs 100)+ sm DLNA), play-critical.
• 📱 Universality: works with Android, Windows 10/11, and some Linux devices as well.
• 🔒 Security: Data is transmitted over an encrypted channel WPA2.

But there are limitations to the technology, such as Miracast, which doesn't support Dolby Atmos audio or higher resolution video. 4K@30fps (on Mi TV 4S maximum resolution — 1080p@60fps). Also, some apps (such as Netflix or Disney)+) The Miracast broadcast is blocked because of DRM-defense.

Compatibility Check: Does your Xiaomi Mi TV 4S Miracast support?

Not all Mi models. TV 4S Miracast is initially supported, depending on the firmware version and the region of sale, for example, devices for the Chinese market (CN-versions are often devoid of this function due to local constraints:

1. Go to Settings → About TV → The version of the software.
2. Compare the firmware number with the table below:

If your firmware is outdated, update it through Settings → System → Software Update. For manual installation, download the file from the official Xiaomi website (select the Global or EEA region).

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Turn off before the upgrade VPN — Some firmware versions block the installation when a nonlocal" IP-address.

Step-by-step: how to turn Miracast on Xiaomi Mi TV 4S

Miracast activation takes no more than 2-3 minutes, but requires precise steps. Below is a universal guide for all versions of the Mi TV 4S:

1. Turn on the TV and go to the main menu (Home button on the remote).
2. Open Settings → Connections and Sharing → Wireless display.
3. Activate the Miracast switch (in some firmware, the item may be called Wireless Display or Screen Mirroring).
4. On the screen will appear a notification “Waiting for connection...” – now you can connect the source (smartphone, laptop).

Make sure the TV and the source are on the same network (if you use Wi-Fi Direct)

Turn off Bluetooth on both devices (may cause interference)

Close the background applications on your smartphone/laptop

Check the battery (for mobile devices)

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To connect from an Android smartphone:

1. Open Settings → Connected devices → Screen transfer (on MIUI the path may differ: Settings → Screen → Wireless display).
2. Choose your Xiaomi Mi TV 4S from the list of available devices.
3. Confirm the connection on both devices (entry may be required) PIN-code).

For Windows 10/11:

1. Press Win + K and select “Connect to Wireless Display”.
2. Find your TV and wait for the connection to complete.

Common Problems and Their Solutions

Even with the right setup, Xiaomi Mi TV 4S users may encounter typical errors, as well as proven ways to fix them:

1.The TV does not see the device (or vice versa)

• 🔄 Reboot your router: Sometimes conflict IP-addresses interfere with detection.
• 📶 Change Wi-Fi channel: Select channel 1, 6 or 11 (they are least susceptible to interference) in the router settings).
• 🛠️ Reset network settings on the TV: Settings → System system → Reset → Reset network settings.

2. Delay of image or sound

If the video is "braking" or the sound is not synchronized:

• 📡 Reduce the distance between devices (optimally up to 3 meters).
• 🎚️ Lower the resolution on the source: in Miracast settings, select 720p instead 1080p.
• 🔋 Turn off the energy saving on your smartphone (in) MIUI: Settings → Battery → Performance mode).

3. No sound when connected

A common problem when broadcasting from Windows:

• 🔊 Go to the Control Panel. → Sound and set up Mi TV 4S default-output.
• 🔄 Reconnect Miracast (sometimes the sound appears after reconnecting).
• 🛠️ Update your audio driver (download from Realtek or laptop manufacturer’s website).

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If the sound is only lost in a particular app (e.g. YouTube), the problem is that the sound is not visible. DRM-Try to broadcast the sound through a separate device (e.g., a Bluetooth speaker).

Optimization of broadcast quality: hidden settings

By default, the Xiaomi Mi TV 4S uses a balance between quality and stability of the connection, but in the engineering menu you can fine-tune Miracast settings:

1. Turn on Developer Mode on TV: Settings → About TV → Click 7 times on “Build Number”
2. Go back to Settings → System → Developer settings.
3. Find the Wireless Display Settings section and change: Bitrate Mode: select High (for stable Wi-Fi). Resolution Priority: 1080p (if lag is acceptable). Audio Latency: Low (for games).

⚠️ Note: changing the parameters of Bitrate Mode on Very High can lead to connection breaks with a weak Wi-Fi signal.

To improve stability, it is also recommended:

• 📶 Use 5 GHz Wi-Fi (if the router supports the).
• 🔌 Connect the TV to the outlet (not use power through the power supply) USB).
• 📵 Turn off Adaptive Brightness and Autoturn on Smartphone.

Miracast vs. Alternatives: What to Choose for Xiaomi Mi TV 4S

Miracast isn’t the only way to stream the screen on Xiaomi Mi TV 4S. Here’s a comparison with other protocols:

The choice of protocol depends on the task:

• 🎮 For games: Miracast (minimum lag) or HDMI.
• 🎬 For Movies: Chromecast (Netflix, Disney support)+).
• 📱 For presentations: Miracast or DLNA (if you just need slides).

⚠️ Attention: Mi TV 4S Chromecasts with firmware older than 2021 may not work properly due to lack of Google Cast certification, in which case use the LocalCast app or Web Video Caster to bypass restrictions.

Security and privacy when using Miracast

Miracast transmits data over an encrypted channel, but there are nuances that few people know about:

1. Local area network: The connection is only established between two devices, but if an attacker connects to your Wi-Fi, they will be able to intercept traffic. Always use WPA3 on the router.
2. PIN: When you first connect, Xiaomi Mi TV 4S can request a 4-digit code. Never confirm the connection if the code on the TV screen and smartphone does not match!
3. Background applications: Some programs (e.g. TeamViewer or AnyDesk) may conflict with Miracast.

To completely disable Miracast after use:

1. Go to Settings → Connections and Sharing → Wireless Display.
2. Click Disable and select "Make Invisible".

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If you frequently connect to public networks (such as a cafe or hotel), manually disable Miracast after use – this will prevent unauthorized connections.

FAQ: Answers to Frequent Questions