Miracast technology allows you to broadcast the screen of a smartphone, tablet or laptop on the big screen of the Xiaomi Mi TV TV 4S Wireless, just a compatible device and a stable Wi-Fi network, but many users have difficulty connecting for the first time: the feature can be hidden in the depths of the menu, and on some firmware it has to be activated manually.
In this article, you will find a step-by-step instruction with illustrations on how to turn Miracast on Mi. TV 4S (This includes 32, 43, 50 and 55 models, and solutions to common problems such as why the TV canโt see the device, how to update the firmware to support the feature, and what alternatives to use if the Miracast doesnโt work. Particular attention is paid to hidden developer settings that allow forced-activation of wireless broadcasting on outdated versions of the software.
What is Miracast and why it doesnโt always work for Xiaomi Mi? TV 4S
Miracast is a wireless screen broadcast standard developed by the Wi-Fi Alliance, and unlike proprietary solutions like Apple AirPlay or Google Cast, it works at the Wi-Fi Direct protocol layer, which theoretically ensures compatibility between devices of different brands. However, in practice, users of Xiaomi Mi TV 4S Often face two key challenges:
- ๐น No feature on the menu: On TVs with firmware older MIUI TV 3.0 Miracast option can be hidden or disabled by default.
- ๐น Protocol Version Conflict: Android 10 Devices+ iOS 14+ Sometimes TVs are not recognized due to differences in Wi-Fi Direct implementation.
- ๐น Hardware limitations: Mi models TV 4S 32" (especially early installments) are equipped with a simplified Wi-Fi module that does not support the 5 GHz dual band - critical for stable broadcasting.
It is important to understand that Miracast on Xiaomi Mi TV 4S It works differently than DLNA or Chromecast:
| Technology | Protocol | Internet is required | Delay (MS) | Support for Mi TV 4S |
|---|---|---|---|---|
| Miracast | Wi-Fi Direct | โ No. | 30โ80 | โ Yes (starting with) MIUI TV 2.5) |
| Google Cast | DNS-SD/mDNS | โ Yes. | 100โ300 | โ Yes (via the annexes) |
| DLNA | UPnP | โ Yes. | 500+ | โ Yes (for media files only) |
| AirPlay | Apple Wireless Direct Link | โ No. | 50โ150 | โ No (required) TV-boxing) |
If your TV doesnโt appear in the list of available broadcast devices, check first:
โ ๏ธ Attention: On Mi TV 4S firmware MIUI TV 1.x (Miracast can be locked at the core level, in which case only flashing to the current version will help.
TV Preparation: Checking firmware and network settings
Before turning on Miracast, you need to make sure that the Xiaomi Mi TV TV 4S It meets the minimum requirements. Start by checking the firmware version:
- Open the settings โ About TV โ version of MIUI TV.
- Compare the number with the current version on the official Xiaomi website.
- If the version is older MIUI TV 3.0.12, update the software via Settings โ Updating the system.
Next, set up the network:
- ๐ถ Connect the TV to a 5GHz router (if supported). Miracast is sensitive to 2.4GHz network interference.
- ๐ Disable guest network and filtering MAC-Addresses in router settings โ they can block Wi-Fi Direct.
- ๐ Restart your TV and router if your devices have not previously interacted with Miracast.
For Mi models TV 4S 32" (2018 release) may require manual activation of the developer mode:
- Go to Settings. โ On TV.
- Click on MIUI TV version 7 times in a row until the notification โYou are a developerโ appears.
- Return to the main settings menu and a new section for developers will appear.
How to find out the model of your Mi TV 4S?
If Miracast is still unavailable after the upgrade, check your energy saving settings:
โ ๏ธ Attention: In "Energy Saving" mode (Settings) โ Power supply) Wi-Fi TV module can restrict background connections including Wi-Fi Direct. Set Performance mode before connecting.
Step-by-step: how to turn Miracast on Xiaomi Mi TV 4S
When youโre done, move on to activate the function.The interface may vary slightly depending on the firmware version, but the overall layout is the same for all Mi models. TV 4S:
Make sure your TV and smartphone are connected to the same Wi-Fi network|
Disable VPNs and firewalls on your smartphone |
Close background applications using a camera/microphone|
Check the battery charge of the smartphone (minimum 30%)-->
- Open the TV settings: Press the Settings button on the remote โ Select Connections and Sharing (or Network and Devices in older versions).
- Activate Miracast: Go to Wireless Screen Broadcast (or Miracast) โ slide on.
- Set up visibility: Select Always available (or Visible for all devices) mode to have the TV appear in the list of available screens.
- Connect the device: On the smartphone, open Settings โ Connections โ Screen broadcast (Android) or Control Point โ Screen duplication (iOS) โ Choose your Mi. TV 4S list.
If the TV does not appear in the list of devices:
- ๐ Reboot both devices.
- ๐ฑ On your smartphone, turn on Device Search (on Android: Settings) โ Google โ Devices and sharing).
- ๐ Try connecting via a hot spot: turn off the TV from Wi-Fi, turn on the access point on your smartphone and connect the TV to it.
For users iPhone/iPad It is important to consider Appleโs limitations:
โ ๏ธ Note: iOS only supports Miracast through third-party apps (like Screen Mirroring or ApowerMirror).The standard Screen Duplication feature only works with Apple-certified devices (like Apple). TV).
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If the image on the TV lags behind the sound, reduce the resolution of the broadcast in the Miracast settings on the smartphone (optimally โ 720p 30 FPS).
Solving the problem: Mi TV 4S not seeing the device or broadcasting the laying
Even after setting it up correctly, users often encounter common errors, and consider the most common ones and how to fix them:
| Problem. | Probable cause | Decision |
|---|---|---|
| The TV is not displayed in the list of devices | Wi-Fi Direct or conflict disabled IP-address | Turn on Wi-Fi Direct in the router settings and assign a static TV IP |
| The broadcast is interrupted every 10-20 seconds. | Weak Wi-Fi signal or interference from other devices | Switch the router to a 5 GHz channel with a width of 40 MHz in the settings |
| The sound is moving, and the image is black. | Incompatible codec or screen resolution | Set the Miracast permission settings 1280ร720 codec H.264 |
| Sound/image delay >500 ms. | Overloading the TV processor | Close all background apps on your TV and smartphone |
To diagnose connection problems on Mi TV 4S Use a hidden diagnostic menu:
- On the remote, press sequentially: Menu โ Up โ Up โ Down โ Down โ Left โ Left โ Right โ Right.
- Choose the Wi-Fi Test โ Direct Connection.
- Check Miracast: Enabled status and signal strength (RSSI should be higher -60 dBm).
If the broadcast is permanently interrupted, try alternative methods of connection:
- ๐ HDMI-cable with adapter (for smartphones with adapter) USB-C lightning).
- ๐ก Google Cast via apps like YouTube or Netflix (requires internet).
- ๐ฅ๏ธ Steam Link for PC screen broadcast (supported on MIUI TV 3.0+).
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On the Mi models TV 4S In 2020 and later Miracast is more stable thanks to the updated Wi-Fi module Broadcom BCM4356, supportive MU-MIMO.
Set up Miracast on Android and iPhone smartphones
The connection process varies depending on the device's operating system, and detailed instructions for both platforms are provided below.
For Android (Samsung, Xiaomi, Google Pixel, etc.)
- Open the Settings. โ Connections โ Screen broadcast (the name may vary: Smart View, Wireless Display or Cast).
- Turn on the device search. Your Mi. TV 4S should appear on the list (for example, as a XIAOMI-LX06-1234).
- Click on the TV name and confirm the connection on both devices.
- Select the broadcast mode: ๐ฑ Duplicate the screen โ full display of the smartphone interface. ๐ฌ Media only โ broadcast only video / photo (less lags).
On Xiaomi devices (MIUI 12+) path:
Settings โ Connection and Sharing โ Screen Broadcast โ MiracastFor iPhone/iPad (iOS 14 newer)
As mentioned earlier, iOS does not support Miracast natively.
- Screen Mirroring: Download the app from the App Store (like ApowerMirror or LetsView). Connect both devices to the same Wi-Fi network. Run the stream through the app interface.
AirPlay via Apple TV
If you have an Apple TV, Put him in the Mi. TV 4S through HDMI Use standard iOS screen duplication.
For owners of MacBook or iMac is available another option:
- ๐ป Install the AirScreen app on your TV (available in Mi) TV App Store).
- On Mac, open System Settings โ Monitors โ Duplicate the screen and select Mi TV 4S.
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Android 11.+ before connecting, turn off the function Adaptive brightness - it can cause the screen to flicker when broadcasting.
Miracast Alternatives for Xiaomi Mi TV 4S: What to use if nothing works
If you havenโt managed to set up Miracast or the streaming isnโt stable, consider alternative ways to duplicate the screen.
| Method | Pluses | Cons | Required. |
|---|---|---|---|
| Google Cast (Chromecast) | Stable work, 4K support | Internet demand, delay ~200 ms. | Apps with support for Cast (YouTube, Netflix) |
| HDMI-cable | Zero latency, support 4K@60Hz | Wires, limited length | adapter USB-C/Lightning โ HDMI |
| DLNA | It works without the Internet, supports media files. | Photos/video only, no screen duplication | Server application (e.g. BubbleUPnP) |
| Steam Link | Ideal for games, low latency | It requires a powerful PC, only for Steam. | Steam computer, controller |
| TV-boxing TV, NVIDIA Shield) | Support for all protocols, 4K HDR | Additional costs (~RUB 5-15 thousand.) | Device with HDMI-entrance |
For owners of Xiaomi Mi TV 4S The most universal solution is Google Cast:
- Make sure the TV is connected to the internet.
- Open a supported app (e.g. YouTube).
- Click the broadcast icon (๐ก) and choose your Mi. TV 4S.
If you often stream games or videos with high latency requirements, consider buying. TV-boxing:
- ๐ฎ NVIDIA Shield TV Pro is the best choice for gamers (supports) 4K@120Hz GeForce NOW).
- ๐ Apple TV 4K โ Optimal for the Apple ecosystem (AirPlay 2 and HomeKit support).
- ๐ค Xiaomi Mi Box S โ budget version with support for Google Cast and Netflix 4K.
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To stream games from PC to Mi TV 4S The best solution is Steam Link (latency) ~30ms or Moonlight (for games) NVIDIA).
Firmware Update: How to Get Miracast Support on Older Mi Versions TV 4S
If your TV is released before 2020, there's a good chance that Miracast is disabled or malfunctioning because of outdated firmware, and manual software updates will help. USB-storage.
Method 1: Update via the Internet (recommended)
- Connect your TV to the network via Ethernet (more reliable than Wi-Fi).
- Go to Settings. โ Updating the system โ Update.
- If the update is not, click Update Checker 3-4 times in a row โ this will reset the cache of Xiaomi servers.
- Wait for download and installation (the TV will restart automatically).
Method 2: Manual update with USB
If the automatic update does not work:
- Download the current firmware for your model from the official website (the file will be in.zip format).
- Unpack the archive and copy the update.zip file to a flash drive formatted in FAT32.
- Put the flash drive in. USB-television-port.
- Go to Settings. โ Updating the system โ Update through USB and select the file.
For Mi models TV 4S 2018-2019 release may require a rollback to factory firmware before updating:
Settings โ About TV โ Settings Reset โ Full Reset (with data deletion)After the update, check Miracast support:
- ๐ Go to Settings. โ Connections and sharing โ Wireless screen broadcasting.
- ๐ If the option appears, but the broadcast does not work, reset the network settings (Settings) โ Network โ Resetting network settings).
โ ๏ธ Note: Do not remove manual updates USB-drive and do not turn off the TV until the process is complete (the indicator on the front panel should stop blinking).