How to connect your phone to Xiaomi Mi TV 4S: way + fixing

Xiaomi Mi TV 4S — One of the most popular smart TVs on the market, thanks to a combination of price, picture quality and functionality, but many users have difficulty syncing it with a smartphone. Duplicating the screen, watching a photo/video from your phone on a large screen or even controlling TV through a mobile application are all possible, but require the right setup.

In this article, we will look at all the current ways of connecting (including wireless and wired), the nuances for Android and iPhone, and the typical errors that interfere with stable operation. Special attention will be paid to optimizing image latency and broadcast quality, which is critical for high-resolution games and video. If you have tried to connect, but you failed, at the end of this article there is a section on diagnosing problems by step.

Before you start, check:

• 📱 The firmware version on the TV (Settings) → The Miracast requires a stable operation. MIUI TV 3.0+.
• 📶 Wi-Fi speed for broadcasting. 4K You need a 5 GHz network or wired connection.
• 🔋 Phone charge. Wireless broadcast is actively consuming the battery - we recommend you to connect the charging.

HDMI Connection: The Most Stable Way

Wired connection through HDMI Ensures minimum latency and maximum picture quality – ideal for games, video games 4K HDR Or presentations. That's gonna take a lot of time:

• 📱 Smartphone with HDMI-alt-mode support (most flagships Xiaomi, Samsung, OnePlus after 2018).
• 🔌 adapter USB-C/Micro-USB → HDMI (For example, the original Xiaomi USB-C to HDMI or Anker certified).
• 🖥️ Cable HDMI 2.0 (for 4K@60Hz) or HDMI 1.4 (for 1080p).

Step-by-step:

1. Connect the adapter to the phone and the cable HDMI — port HDMI 2.0 on the back of the Mi TV 4S (usually signed ARC).
2. On the TV, select the signal source: press Input on the remote → HDMI 2 (or another port where the cable is connected).
3. The phone will be asked for permission to transfer the image – confirm it.
4. If the screen is not duplicated, check the phone settings: Settings → Display. → Regime. HDMI (Choose to Duplicate or Expand).

Important: when connecting through HDMI The default sound is transmitted to the TV, so to return it to your phone, open the notification panel and change the audio output device.

2 Wireless screen duplication via Miracast

Miracast – wireless screen broadcast standard built into Xiaomi Mi TV 4S And most of the modern smartphones:

• ⚡ No need for cables – works via Wi-Fi Direct.
• 🎮 Supports delayed games ~30-50 MS (decent result for wireless connection).
• 📺 It broadcasts sound along with the image.

How to turn Miracast on your TV:

1. Open the Settings. → Connections → Wireless display.
2. Activate the Miracast option (called Wireless Display).
3. Remember the name of the device (for example, MiTV-4S-1234) — It will be needed to connect.

Setup on Android:

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

Setup on iPhone:

Apple doesn’t support Miracast directly, but there’s a workaround through Apple TV Or an application like Screen Mirroring (requires an AirPlay-compatible device). TV 4S easier to use HDMI or DLNA (see next section).

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If the image on the TV is cropped at the edges, change the aspect ratio in Miracast settings on the phone: select Fit under the screen instead of Source.

3. Media broadcast over Wi-Fi (DLNA/UPnP)

If you don’t need to duplicate the entire screen, but only view photos, videos or music, use the protocol. DLNA. It works over a home Wi-Fi network and does not require a direct TV connection.

How to set up on Xiaomi Mi TV 4S:

1. Connect your TV and phone to the same Wi-Fi network (required!).

Send to the device

Mi TV 4S

DLNA limitations:

• ❌ Does not broadcast the screen in full (only individual files).
• ❌ Not all video formats are supported (for example, the video formats are not supported, MKV s DTS sound may not be reproduced).
• ❌ Delay to 2-3 seconds in reproduction.

4. Connection via USB (MTP/PTP)

If Wi-Fi is unstable, and cables HDMI No, no, no, you can use it. USB-cable for file transfer or even TV control (on some firmware).

What you need:

• 🔌 Cable USB-A → USB-C/Micro-USB (It is included in most smartphones).
• 📁 Phone in File Transfer Mode (MTP).

Instructions:

1. Connect the phone to the port USB 2.0 on the TV (usually sideways).
2. On the phone screen, select File Transfer Mode (not Charge!).
3. On TV, open the File Manager (English Explorer app) → Select a connected phone.
4. You can now view photos/videos directly from your phone or copy them to your phone. USB-accumulator.

⚠️ Note: Not all versions of the Mi firmware TV 4S Supports the management of the phone through USB. If nothing happens after the connection, check for software updates or use alternative methods.

5. Control of TV via phone (Mi Home app)

In addition to broadcasting the screen, you can use the phone as a remote control or control center Mi. TV 4S. For that:

1. Install the Mi Home app (available for Android and iOS).
2. Sign up or sign in to your Xiaomi account (required!).
3. Click Add Add the device → Choose the TV. → Mi TV 4S.
4. Follow the instructions on the screen (you will need to connect to the same Wi-Fi network).

What can you do with Mi Home:

• 🎛️ Fully control the TV (turn on / off, adjust volume, switch channels).
• 🔍 Use voice search (if TV supports Google Assistant).
• 📱 Send files from your phone to your TV (alternative) DLNA).
• 🔄 Update firmware remotely.

⚠️ Note: If the TV does not find the Mi Home app, check if Network Management is enabled in the TV settings: Settings → General. → Network management.

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The Mi Home app allows you to control your TV even outside of your home, as long as both devices are connected to your Xiaomi account and have internet access.

6. Problem Solving: Why the phone doesn't connect to the Mi TV 4S

If none of these methods worked, go through this checklist:

Problem. 1: TV doesn't see the phone on the phone Miracast/Wi-Fi Direct

• 🔄 Reboot both devices.
• 📶 Check that your phone has Wi-Fi and Bluetooth enabled (sometimes required for authorization).
• 🔧 Update the TV firmware: Settings → On TV. → Updating the system.
• 🛠️ Reset your network settings to TV: Settings → The Internet and the Internet → Resetting network settings.

Problem 2: There is no image when connecting via HDMI

• 🔌 Check the cable and adapter on another device (like a laptop).
• 🔄 Switch the port. HDMI on TV (try it out) HDMI 1, HDMI 2 etc.).
• 📱 On the phone in the settings HDMI Select Duplicate screen mode (not Second screen).

Problem 3: Stuttering video or sound when broadcasting

• 📶 Connect your TV to a 5GHz network (if you use Miracast or DLNA).
• 🎮 Reduce the broadcast resolution in Miracast settings (select) 720p instead 1080p).
• 🔇 Disable background apps on your phone that can load the processor.

Problem 4: Mi Home app doesn't find TV

• 🌐 Make sure your phone and TV are connected to the same Wi-Fi network (not via mobile internet!).
• 🔒 In the router settings, disable Client Isolation).
• 🔄 Reinstall the Mi Home app and log in again.

7. Optimization of broadcast quality: tips for gamers and moviegoers

If you connect your phone to the Mi TV 4S For games or watching movies in high quality, pay attention to these nuances:

For games (minimum delay):

• 🎮 Use only. HDMI — delay ~5-10 opportunistic ~50 Miss at Miracast.
• 🔌 Connect your phone to charge while playing (wireless broadcasting severely drains the battery).
• 📱 In the phone developer settings, turn on the Animation buffer and turn off the transition buffer.

For video (maximum quality):

• 🎥 For 4K HDR use HDMI 2.0 + cable with support for 18 Gbps.
• 📶 When broadcasting on Miracast, choose 1080p@30Hz — 4K will slow down.
• 🔊 For surround sound (Dolby Atmos), connect to the TV external sound system through HDMI ARC effluent.

For music (without loss of quality):

• 🎵 Use it. DLNA BubbleUPnP app – it supports FLAC and WAV.
• 🔊 In the TV settings, select Direct to avoid signal processing.

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For a stable broadcast 4K Miracast requires a router with Wi-Fi 6 support (802.11ax) 160 MHz channel.

FAQ: Frequent questions