Modern multimedia capabilities allow you to completely eliminate unnecessary wires, turning the living room into a real entertainment center. Xiaomi Mi TV 4S is equipped with an advanced Wi-Fi module that supports not only streaming video, but also the function of wireless image projection from mobile devices. This technology, known as Miracast or Wi-Fi Direct, allows you to duplicate the screen of a smartphone, tablet or laptop on a large display in real time.
Activation of this feature allows you to show photos, play games and watch movies from applications that do not have native support on Android TV. It is important to understand that for the technology to work smoothly, both devices must be on the same local network or use a direct wireless connection. In this article, we will discuss in detail the configuration process, possible problems and nuances of the protocol on the PatchWall platform.
It is worth noting that the quality of the transmitted image depends on the power of the router signal and the version of the operating system of your gadget. Miracast protocol on Xiaomi Mi TV 4S works natively without installing additional software, if the signal source supports the Wi-Fi Display standard. Let's consider a step-by-step algorithm of actions that will allow you to start broadcasting in minutes.
Equipment preparation and network requirements
Before you start setting up, you need to make sure that your equipment is ready for multimedia broadcasting. Xiaomi Mi TV 4S is based on the Android TV operating system, which has built-in drivers for receiving video streams. However, certain network infrastructure conditions are required to work properly.
First of all, check that both the TV and smartphone are connected to the same Wi-Fi network.If your router supports dual-band mode, it is recommended to use a 5 GHz frequency, as it provides the higher bandwidth required to transmit high-resolution video without delay.
- 📡 Make sure that the Wi-Fi module on the TV is active and the signal is stable (at least) 2-3 division).
- 📱 Wi-Fi should also be enabled on the mobile device and geolocation access open (some versions of Android are required to find devices).
- 🔄 Update your TV firmware to the latest version via the Settings menu → On TV. → System update.
⚠️ Note: If your router is set up with customer isolation (AP Isolation, which is a feature that devices can't "see" each other on the network, is often enabled in guest networks or enterprise segments.
If there are many devices that are actively consuming traffic (for example, downloading large files or streaming 4K on another TV), wireless projection quality may decrease. Ideally, a free channel should be provided for translating games or movies into 4K.
Activation of the wireless display function in the TV menu
Unlike some other brands where the feature can be hidden in the depth of settings, the PatchWall interface from Xiaomi is conveniently arranged, but the name of the feature can vary depending on the regional version of the firmware and the Android version.
To start the signal reception service, you need to go to the top of the main screen. Using the remote, find and select an application or widget called Wireless display, Wireless monitor or Tranulation. In some builds, this application is called Cast.
When the app is launched, a connection window will appear on the TV screen, at which point the device enters visibility mode and begins broadcasting a signal for search by external gadgets, the interface can offer a list of already available devices or simply display the technology logo.
☑️ Checklist of activation on TV
If you can't find the corresponding app on the home screen, try voice search or find it under "My apps." Sometimes the system suggests installing the component on the first run - agree with this action, as this is a necessary system module.
Setup projection with Android-smartphone
The process of connecting an Android smartphone may vary depending on the manufacturer’s shell (MIUI, One UI, ColorOS, etc.), but the basic principle remains the same: Miracast technology is built into the Android core since version 4.2, so additional applications are rarely required.
Open the Quick Settings Panel by swiping from top to bottom. Find a button called Broadcast, Smart View, Projection, or Wireless Monitor. If you don't have one in the visible part, expand the full icon list or click on three dots to edit the panel.
Once you activate the search, the phone will start scanning the available devices. Your Xiaomi Mi TV 4S should appear in the list. Click on it, and in a few seconds the image from the smartphone will appear on the TV screen. To control the cursor or mouse, you may need to confirm on the TV screen.
| Smartphone manufacturer | Name of function | Where to find |
|---|---|---|
| Xiaomi / Redmi / POCO | Broadcasting | Control Center / Settings → Connection and Sharing |
| Samsung | Smart View | Quick settings panel (curtain) |
| Huawei / Honor | projection | Control panel (swipe with two fingers) |
| Pure Android | Broadcasting | Settings → Connected devices → Connect to the device |
In some cases, especially on older versions of Android, the system can request permission to record the screen.This is standard protocol behavior, since it actually captures the video stream from the display.
What to do if your phone can’t see TV?
Broadcast from iPhone and iPad (AirPlay)
Owners of Apple equipment may face the question of compatibility, since Xiaomi devices use the Miracast standard, and iOS is based on the AirPlay protocol. However, modern models of Xiaomi Mi TV 4S with Android TV 9.0 and higher often have built-in support for AirPlay 2 or allow it to be activated through system settings.
Check for AirPlay in your TV settings. Go to Settings → Accounts and Logins or Apps. If there is no built-in support, you will need to install an emulator app from the Google Play Store, such as AirScreen or AirPin.
Once you have the emulator installed and started on your TV, open the screen repeater in Control Point on your iPhone. Select your TV from the list. The image should be streamed with minimal latency, allowing you to watch Safari videos or show presentations.
- 🍎 Make sure your iPhone and TV are Bluetooth enabled (helps with initial detection).
- 📺 For better quality in the emulator app on TV, you can choose a resolution 1080p and frequency 60 FPS.
- 🔒 When you first connect to the TV screen, a 4-digit code may appear, which you need to enter on the iPhone.
Periodically let the technique rest.
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To reduce latency when playing with your iPhone, close all background apps on your TV through the multitasking menu to free up RAM.
Connecting a laptop with Windows 10 and 11
Windows operating systems have excellent integration with Miracast technology, making connecting to Xiaomi Mi TV 4S as easy as possible. You do not need to install any drivers if the graphics card and the laptop’s Wi-Fi adapter support the Wi-Fi Direct standard.
Press the Win + K keyboard. On the right, the Connect panel opens. Your TV should be displayed on the list of available devices. Click on it and the system will try to establish a connection.
Once you've successfully connected, you can choose to work in a mode of operation: backup (when the TV and laptop are the same) or desktop expansion (when the TV becomes the second monitor). + P).
⚠️ Note: If your laptop says “Unable to connect,” check Windows Services. the Wireless Display Service must be started and have a Manual or Automatic Startup type».
For users who want to achieve maximum stability, it is recommended that the Wi-Fi adapter power settings prohibit the device from turning off to save energy, which will prevent communication breaks during downtime.
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Using an MHL-enabled HDMI cable or a Type-C to HDMI adapter will always provide a more stable, latency-free picture than a wireless connection, especially for dynamic shooters.
Addressing common problems and delays
Although convenient, wireless projection sometimes faces technical difficulties, the most common problem is the desynchronization of sound and image or the “suspend” of the image, which is often due to unstable Wi-Fi signal or interference from neighboring networks.
Try changing your Wi-Fi channel in your router settings. 2.4GHz band congestion is the main cause of lags. If your router and TV support 5GHz, be sure to switch to that frequency. Also make sure there are no thick walls or metal obstacles between the router and the TV.
Another cause of failure may be the outdated version of the Wi-Fi module drivers in the TV itself. Check for system updates in the Settings menu → About TV → System Update. Xiaomi regularly releases patches that improve the stability of wireless connections.
- 🔌 Try to disconnect from the router other devices not currently in use to free up the channel.
- 📉 Reduce the resolution of the broadcast in the phone settings, if the picture is jerky.
- 🔄 Reboot your router, TV and smartphone – it solves 80% of connection problems.
If there is an image but no sound, check the sound settings on your mobile device. Sometimes the sound continues to play on your phone instead of being transmitted to TV. The broadcast menu often has a "Video Only" or "Video and Audio" switch.