Connecting your smartphone to your Xiaomi Mi TV 4S via Wi-Fi offers a range of possibilities, from watching photos on a large screen to streaming high-resolution video without unnecessary wires. However, many users face difficulties in the first setup โ the TV does not find the device, there are image delays or sound is transmitted with interference. In this article, we will analyze all current wireless connectivity methods (including hidden Miracast and DLNA functions), as well as give recommendations for optimizing the connection for different use scenarios.
The 4S model (unlike the newer Xiaomi TV Q or P1) is limited in support of wireless transmission protocols. For example, there is no built-in Apple AirPlay, but there are alternative solutions for iPhone owners. And for Android devices, both standard tools like Google Cast and proprietary technologies from Xiaomi are available. It is also important to consider the firmware version of the TV - in older builds (before MIUI TV 3.0), some functions may not work correctly.
Before you start setting up, make sure both devices are connected to the same Wi-Fi network (preferably at 5GHz for less latency) and updated to the latest versions of the software. If you use a dual-band router (2.4GHz + 5GHz), temporarily disable network separation - this is a common cause of device detection problems.
1. Connection via Miracast (Screen Mirroring)
Miracast is a wireless screen transmission standard supported by most modern Android devices and Xiaomi 4S TVs. It allows you to duplicate the screen of a smartphone on TV with minimal latency, which is ideal for games or watching videos. However, this method has a nuance: it requires direct connection between devices (Wi-Fi Direct), so the promised โwirelessโ provides only partially โ the Internet on the phone during the broadcast will not work.
To activate Miracast on Xiaomi Mi TV 4S, follow the following steps:
- ๐บ On the TV remote, press the Menu button, then go to Settings. โ Connection and sharing โ Wireless display.
- ๐ Turn on Miracast (or Wireless Display in English firmware) and the TV will start searching for available devices.
- ๐ฑ On your smartphone, open Settings โ Connections โ Screen transmission (on Xiaomi/Redmi) or Smart View (on Samsung). Select your TV from the list.
- ๐ Confirm the connection on both devices. In 5-10 seconds, the phone screen will be displayed on TV.
If the TV doesnโt find the smartphone, check:
- โก Device Compatibility: Miracast is supported on Android 4.2+ iOS 13+ (restrictively).
- ๐ถ Signal quality: walls and interference from other networks can block the connection. Try to place the devices closer together.
- ๐ Power Saving Mode: On your phone, turn off battery optimization for the screen transfer function.
Make sure that the TV is on Wi-Fi.|Turn it off. VPN phone-on|Restart your router if your devices canโt see each other.|Check that the TV is not activated mode "Guest"-->
โ ๏ธ Note: When using Miracast on Xiaomi 4S You can have a delay of up to 0.5 seconds. To sync audio and video, try to turn on the TV Game Mode in the image settings.
2. Using DLNA to Transfer Media Files
DLNA allows you to stream not the entire screen of your smartphone, but only selected photos, videos or music to your TV, which is convenient if you don't need to duplicate the phone's interface, but simply show the content on a large screen, and unlike Miracast, it retains Internet access on a mobile device, because the transmission is over a local network.
To set up DLNA on Xiaomi Mi TV 4S:
- ๐บ On the TV, go to Settings. โ Network settings โ DLNA and activate the function.
- ๐ฑ On your smartphone, install an application for DLNA, For example: BubbleUPnP (Android) AllConnect (iOS/Android) Photo (built-in app on Xiaomi with support) DLNA)
๐ In the app, select a file to transfer and specify your TV in the list of available devices.
DLNA supports most formats, but there are limitations:
| File type | Supported formats | Limitations |
|---|---|---|
| Video | MP4, AVI, MKV, MOV (H.264/H.265) | Max. 4K@30fps resolution, no Dolby Vision support |
| Audio. | MP3, FLAC, WAV, AAC | No support for Hi-Res audio (DSD, 24-bit/192kHz) |
| Photo Photo | JPEG, PNG, BMP, GIF | HEIF/HEIC (Iphone photo) requires conversion |
If the video is slowing down or interrupted, try:
- ๐ถ Switch to 5 GHz frequency in router settings.
- ๐ง In the annex DLNA Reduce the broadcast bitrate (if you have such an option).
- ๐ต Disable background apps on your phone that consume traffic.
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If the TV is not on the list DLNA-Check if the router's firewall is blocking it. MAC-TV address on the exclusion list.
3. Connect iPhone to Xiaomi 4S (AirPlay alternatives)
Owners of iPhones or iPads face a problem: Xiaomi 4S TVs do not support Apple AirPlay at the software level.
- Facilitating annexes: ๐ฑ ApowerMirror โ allows you to broadcast the screen over Wi-Fi with minimal latency (supports sound). ๐ฎ Streamer for Xiaomi TV โ Specialized solution for games and video.
To work these applications on the TV will need to install the client part (available in the Mi App Store).
HDMI adapters:
If your iPhone supports video output via Lightning or USB-C, You can use the Apple Digital Adapter AV Adapter + HDMI-This is not a wireless method, but it guarantees stability without delay.
To set up ApowerMirror:
- Download the app on your iPhone and TV.
- Connect both devices to the same Wi-Fi network.
- On your phone, select the Phone Screen Mirroring option and specify your Xiaomi 4S.
โ ๏ธ Note: When using third-party apps to stream from your iPhone, the sound may be delayed. To sync the audio, connect external speakers to your TV via Bluetooth or optical output.
4. Google Cast (Chromecast) for Xiaomi 4S
Although the Xiaomi Mi TV 4S doesnโt have a built-in Google Chromecast, the functionality of Google Cast can be emulated through apps, a method that is convenient for streaming videos from YouTube, Netflix or Google Photos without full-screen duplication.
Instructions for setting:
- ๐บ Install the Google Home app on your TV (available from the Mi App Store or via the app). APK).
- ๐ฑ On your smartphone, open the app you want to stream content from (e.g. YouTube).
- ๐ Click the Cast icon (usually in the top right corner) and select your TV.
- ๐ฌ Start playback - the video will begin to broadcast on TV, and the phone will remain a control panel.
Important: To work correctly, Google Cast on Xiaomi 4S, you need to turn off the Network Optimization feature in your TV settings (Settings โ System โ Special Features โ Network Optimization). Otherwise, the broadcast will stop every 5-10 minutes.
How to install APK on Xiaomi TV 4S?
5. Solving Connection Problems
If the TV canโt see the phone or the connection is constantly breaking, check the following points:
| Problem. | Possible cause | Decision |
|---|---|---|
| The devices don't find each other. | Different Wi-Fi networks or firewall blocking | Connect both devices to the same network, disable VPN |
| Sound/video delay | Network congestion or weak signal | Switch to 5GHz, reduce bitrate |
| Broadcast cuts off | Energy saving on the phone or TV | Turn off battery optimization for broadcast apps |
| No sound at Miracast. | Incompatibility of audio codecs | Try a different protocol (DLNA or Google Cast) |
To diagnose network problems on Xiaomi 4S:
- Go to Settings โ About TV โ Network information.
- Check the connection speed (should be at least 100 Mbit / s for stable broadcast).
- If the speed is low, reconnect to the router or change the Wi-Fi channel in its settings.
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For maximum stability, use a router that supports Wi-Fi 5 (802.11ac) and turn off the Auto Channel Selection function in its settings.
6.Putting the connection for games and videos
If you plan to stream games from your phone to your TV (e.g., via Xbox Cloud Gaming or Steam Link), standard protocols like Miracast can cause critical delays.
- ๐ฎ Steam Link (requires a PC on the local network, but provides minimal lag).
- ๐ฑ Moonlight (for streaming games from PC to PC) NVIDIA GPU).
- ๐น๏ธ Parsec (an alternative for cloud gaming).
To set up Moonlight on Xiaomi 4S:
- Install Moonlight on your phone and PC with NVIDIA graphics card.
- On PC, turn on NVIDIA GameStream in the GeForce Experience dashboard.
- Connect your phone and TV to the same network, run Moonlight on your smartphone, and select a PC.
- In Moonlight settings on your phone, activate Force 60 FPS and set the bitrate to 20 Mbps.
To improve the quality of video broadcasting:
- ๐บ In the settings of the TV, turn on Movie Mode for better color reproduction.
- ๐ก Use 5GHz Wi-Fi and place your router closer to your TV.
- ๐ Connect your phone to charge โ broadcasting severely drains the battery.
7. Alternative ways of connecting
If wireless methods are not suitable (for example, due to poor Wi-Fi), consider alternatives:
- ๐ HDMI-Adapter: For Android โ USB-C to HDMI, for iPhone - Lightning to HDMI. Provides permission before 4K@60Hz without delay.
- ๐ถ Bluetooth: Suitable only for audio transmission (e.g. music from phone to TV speakers).
- ๐พ USB-Drive: Copy files to a flash drive and play them through Media Player on your TV.
To connect through HDMI-adapter:
- Connect the adapter to your phone and connect it to your TV with an HDMI cable.
- On the Xiaomi 4S remote, select the source of the HDMI signal (Source button).
- The phone may need to be on mode. USB-debugging (Settings) โ For developers).
โ ๏ธ Attention: When in use USB-C to HDMI On Xiaomi phones with Snapdragon processor sometimes requires activation of the debugging option HDMI To open this menu, click on the version 7 times. MIUI phone-setting.