Xiaomi Mi TV 4S has long been a popular choice among users due to the combination of affordable prices and modern features. One of these features is support for Google Chromecast technology, which allows you to stream content from mobile devices directly to the big screen. However, many owners face difficulties when connecting for the first time: the TV does not see the device, the broadcast is constantly interrupted, the sound is delayed. In this article, we will discuss all the ways to activate Chromecast on Xiaomi Mi TV 4S (including models 4S 32, 4S 43, 4S 50” and 4S 55”), and we will also explain how to fix typical problems.
It’s important to understand that the Xiaomi Mi TV 4S supports Chromecast in two ways: through the built-in Miracast/Wi-Fi Direct feature (similar to Chromecast but with limitations) and through the external Google Chromecast device (USB-dongle).We’ll take a look at both options in detail so you can choose the best one for your tasks. If you want to stream YouTube, Netflix or a smartphone screen without lags, this is the guide for you.
1. Compatibility Check: Does your Xiaomi Mi TV 4S Chromecast support?
Before you start setting up, make sure your TV model is really compatible with the technology. Xiaomi Mi TV 4S of all generations (2018-2023) supports Miracast, the equivalent of Xiaomi's Chromecast, but with some nuances:
- 📺 Models. 2018–2019 d. (e.g, L43M5-5AIN): Miracast only works with Android devices 8+ and requires manual connection via Settings → Connections → Miracast.
- 📺 Models. 2020–2023 d. (e.g, L50M6-6ARG): Support Google Cast (full Chromecast) after updating to MIUI TV 3.0+.
- 📺 All models: External Google Chromecast (USB-dongle) requires a free port HDMI feeding through USB (Included with Chromecast is an adapter).
To find out the exact model of your TV, go to Settings → About TV → Model. If the model name has an S (like 4S), then this is the series that we are talking about. Xiaomi Mi TV 4 (without the letter S) does not support Chromecast through Miracast – they necessarily need an external dongle.
⚠️ Note: If your TV is released before 2018 (e.g. Mi) TV 3S), You don't have a built-in Chromecast, you'll need to buy an external device, Google Chromecast Ultra or Chromecast 3.
Method 1: Connect via built-in Miracast (without external dongle)
This method is suitable for broadcasting a smartphone or tablet screen to a TV without any additional devices, but it has limitations:
- ❌ No support for Netflix, Disney+ and other streaming services (screen mirroring only).
- ❌ Possible lags when broadcasting games or videos in 4K.
- ✅ It works without the Internet (local network only).
To activate Miracast on Xiaomi Mi TV 4S, follow the following steps:
- Turn on Miracast on your TV: Open Settings (button with a gear on the remote). Go to Connections → Miracast. Activate the slider Enable Miracast.
- Connect your smartphone: On Android: Open Settings → Connections → Broadcast screen (or Smart View on Samsung). On iPhone: Use the Screen Mirroring app (requires Apple TV or third-party apps like ApowerMirror).
Select the TV in the list:
The list of available devices will show the name of your Xiaomi Mi TV 4S (e.g. MiTV-4S-XXXX).Click on it and confirm the connection.
Make sure your TV and smartphone are connected to the same Wi-Fi network
Turn on Miracast in the settings of the TV
Disable VPN on your smartphone (can block broadcast)
Close the background applications on the phone for stable operation-->
⚠️ Note: If the TV doesn’t appear in the list of broadcast devices, try rebooting your router or changing your Wi-Fi channel to 2.4GHz (not all Mi models) TV 4S Supports 5 GHz for Miracast).
3. Method 2: Connecting an external Google Chromecast to a Xiaomi Mi TV 4S
If you need full support for Google Cast (for YouTube, Netflix, Google Photos and other services), it is better to use the external dongle of Google Chromecast.
- 📦 Google Chromecast (any version, but for the same purpose) 4K Chromecast Ultra or Chromecast with Google TV).
- 🔌 Free port HDMI TV-wise.
- 🔋 Power for Chromecast (via Chromecast) USB-TV port).
Instructions for connection:
- Connect Chromecast to TV: Insert dongle in port HDMI (preferably HDMI 2.0 4K). Connect the power cable to USB-TV port or outlet (if the TV doesn't produce enough current, Chromecast may not turn on).
- Select the signal source: On the Xiaomi remote, press the Source (or Input) button and select the HDMI port to which the Chromecast is connected.
- Set up Chromecast: Download the Google Home app to your smartphone. Follow the instructions in the app to connect the Chromecast to your Wi-Fi network. Assign the device a name (like Chromecast Living Room).
| Chromecast model | 4K support | Required HDMI | Nutrition |
|---|---|---|---|
| Chromecast 3 | ❌ (max. 1080p) | HDMI 1.4 | USB (5V/1A) |
| Chromecast Ultra | ✅ (4K HDR) | HDMI 2.0 | Rosetta (adapter included) |
| Chromecast with Google TV | ✅ (4K Dolby Vision) | HDMI 2.1 | USB-C (adapter included) |
Once set up, you can stream content from supported apps (e.g. YouTube, Netflix, Spotify) directly to your TV (📡) In the app and select your Chromecast.
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If Chromecast doesn’t connect to Wi-Fi, try temporarily disabling dual authentication (WPA2/WPA3) in your router settings and only use WPA2-PSK.
Typical problems and their solutions
Even after setting it up correctly, users often encounter errors, and here are the most common ones and ways to fix them:
🔴 Problem: TV doesn't see Chromecast/Miracast
- 🔄 Solution 1: Reboot the TV and router. SometimesConflict IP-Addresses prevent device detection.
- 📶 Solution 2: Make sure your TV and smartphone are connected to the same Wi-Fi network (not the guest network!).
- 🔧 Decision 3: On the router, turn on the mode WMM (Wi-Fi Multimedia in Qos settings.
🔴 Problem: The broadcast is delayed or interrupted
- 📡 Solution 1: Switch the router to a 5GHz channel (if supported) or select a less loaded 2.4GHz channel (for example, 1, 6, or 11 GHz).
- 📱 Solution 2: Close all background apps on your smartphone, especially instant messengers and streaming services.
- 🔌 Solution 3: If you use an external Chromecast, plug it into the socket, not the one you use. USB-TV port (power shortages can cause failures).
🔴 Problem: No sound during broadcast
- 🔊 Solution 1: Check if the TV is switched off (Mute button on the remote).
- 🎧 Solution 2: In Chromecast settings (in Google Home) select HDMI sound-produce.
- 🔄 Solution 3: Restart the broadcast or reconnect the device.
What to do if Chromecast is permanently disabled?
5. Streaming Optimization: How to Reduce Delays and Improve Quality
If you’re streaming videos or games, even small lags can be a mess. Here are some ways to optimize Chromecast performance on Xiaomi Mi TV 4S:
- 🚀 Use wired connectivity: If your Chromecast supports Ethernet (like Chromecast Ultra), connect it to your router with a cable – this will reduce latency to a minimum.
- 📶 Set traffic priority: In router settings (QoS), set the maximum priority for MAC-Chromecast addresses.
- 🎮 For games: Use apps like Steam Link or Moonlight (for PC streaming) – they are optimized for low latency.
- 📺 For video: In YouTube or Netflix settings, select permission 1080p instead 4K, if there is a slowdown.
If you’re streaming a smartphone screen (Miracast), try reducing the screen resolution in the developer settings (Settings → About Phone → Assembly Number – tap 7 times, then go back to Settings → System → Developer → Screen Resolution).
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For stable 4K broadcast via Chromecast, the Internet speed must be at least 20 Mbps, and the router must support the 802.11ac standard (Wi-Fi 5) or later.
6. Alternative streaming methods on Xiaomi Mi TV 4S
If Chromecast doesn’t work for some reason, consider alternative methods:
- 📱 DLNA/UPnP: Use apps like BubbleUPnP or LocalCast to stream media from your phone.
- 🖥️ Connection to HDMI: For PC or laptop, you can use a cable HDMI (if the TV supports CEC, It can be controlled from the Xiaomi remote).
- 🌐 Cloud Services: Upload the video to Google Drive or Yandex Disk and open it through your browser on your TV.
- 🎮 Game consoles: Xbox or PlayStation also support screen broadcasting to TV.
For owners of Xiaomi Mi TV 4S with Android TV (MIUI TV 3.0+ firmware), another way is available - using the AirScreen app from Google Play. It allows you to receive airplay (for iPhone), Miracast and Google Cast in one interface.