How to broadcast the screen of Xiaomi smartphone on TV: all working ways

Turning your phone into a media center: why do you need it?

Have you ever wanted to show pictures of a vacation on a big screen but toss them over a flash drive for too long? Or run a mobile game on Xiaomi Redmi Note 12 with control over a gamepad, and bring the picture to a 55-inch Samsung QLED? Or maybe you are tired of squinting into a small screen while watching YouTube or TikTok?

Modern Xiaomi smartphones (including POCO and Black Shark) support several ways to broadcast the screen to the TV, from wireless protocols to wired adapters. But not all methods are equally convenient: somewhere there will be a delay of 1-2 seconds, somewhere you will need to buy adapters, and some TVs refuse to see the phone at all. In this article, we will analyze all the current methods (including the hidden features of MIUI 14/15), compare them in speed, quality and reliability, and also explain how to circumvent typical errors like “no sound” or “black screen”.

Spoiler: If you have a Xiaomi 13 Ultra and an LG OLED C2 TV, you can use Wi-Fi Direct with 4K@60Hz resolution. But the owners of the budget Redmi 10A will have to settle for 720p via Google Cast — but that’s better than nothing.

1. Wireless broadcast via Miracast (Screen Mirroring)

It is a native screen transfer protocol built into MIUI since version 8. It works without the internet, directly linking the phone and TV over Wi-Fi Direct. The main advantage is the minimal latency (about 50-100 ms), which is critical for games and video.

How to turn on:

• 📱 On the phone: open Settings → Connection and sharing → Screen Transfer (or Cast in the Notification Curtain).
• 📺 On TV: Activate Screen Mirroring (Samsung – Smart View, on TV) LG — Miracast).
• 🔍 From the list of available devices, select your TV. Confirm the connection on both screens.

Limitations of the method:

• ⚠️ Not all apps support broadcasting because of DRM-protection (e.g. Netflix or Disney)+ They may show a black screen).
• ⚠️ Maximum authorization — 1080p (Even if the phone supports 4K).
• ⚠️ On old TVs (until 2018) it is possible to slow down due to weak Wi-Fi module.

Telephone and TV on the same Wi-Fi network (or disconnected from all networks)

Screen Mirroring or Wi-Fi Direct is on TV

Power saving mode for Wi-Fi is disabled on the phone

Distance between devices not more than 5 meters-->

If the TV doesn’t find the phone, try:

1. Reboot both devices.
2. In Settings → Additional → Developer Mode, turn on Wi-Fi debugging.
3. Update your TV firmware (instructions for Samsung: Settings → Support → Software Update).

2. Google Cast (Chromecast) – for streaming content

This method is suitable if you need to stream a specific app (like YouTube, Twitch or Google Photos) rather than the entire screen. Unlike Miracast, here audio and video are transmitted directly from the app, which reduces the load on the phone.

Instructions:

1. Make sure your phone and TV are connected to the same Wi-Fi network.
2. Open a supported app (like YouTube) and tap on the Cast icon (Wi-Fi screen).
3. Select your TV from the list. The broadcast will start automatically.

If the sound is only coming through the phone, check:

• 🔊 The TV is not turned off the sound in the settings HDMI-CEC.
• 📶 In the application (for example, YouTube) in the Cast menu, the option “Reproduce sound on TV” is selected».
• 🔄 Reconnect devices (sometimes resetting the connection helps).

Miracast (Screen Mirroring)

Google Cast (Chromecast)

Wired connection (HDMI)

I don't use the broadcast.-->

3. Wired connection via HDMI (without delay)

If you want maximum quality (for example, to watch movies in 4K HDR or stream games), wired method is the best choice. latency is minimal (~20 ms), and the picture is transmitted without compression.

What you need:

• 🔌 adapter USB-C → HDMI (For new Xiaomi models or Micro-USB → HDMI (for old Redmi).
• 📺 HDMI-cable (preferably version) 2.0 or higher 4K@60Hz).
• ⚡ Power supply for the phone (broadcasting severely drains the battery).

Step-by-step:

1. Connect the adapter to the phone and HDMI-cable to adapter and TV.
2. On the TV, choose the right one. HDMI-input (usually by the Source button on the remote control).
3. On the phone in the notification curtain will appear the option “HDMI Mode” – select Screen Mirror.

⚠️ Note: On some models POCO (for example, POCO X3 Pro) when connected through HDMI To get back to control, disconnect the cable or use the mouse on the screen. USB-OTG.

Tips for better quality:

• 🎮 For games, turn on the phone's performance mode (Settings) → Battery → Performance mode).
• 📺 On TV, activate Game Mode to reduce latency.
• 🔋 Connect your phone to charge - otherwise through 20-30 It'll run out of minutes.

💡

If the USB-C → HDMI adapter doesn’t work, check if it supports DisplayPort Alt Mode. Cheap Chinese adapters often only give out 1080p, and 4K requires a Realtek RTD2173 chip or similar.

4. Broadcast via Smart TV (Samsung DeX, LG ThinQ, Android TV)

If you have a smart TV on Android TV, webOS (LG), or Tizen (Samsung), you can use proprietary technologies for extended broadcasting, such as Samsung DeX turning your phone into a full-fledged computer with application windows.

How to connect to Samsung TV:

1. On Xiaomi, install the Samsung DeX app from Google Play.
2. On TV, open DeX through the app menu.
3. On your phone, select Settings → Connection & Sharing → DeX and follow the instructions.

For LG TV with webOS:

• 📲 Install the app LG ThinQ on the phone.
• 📺 On TV, turn on Screen Share in your network settings.
• 🔗 Connect via Wi-Fi Direct by selecting the TV from the list of devices.

Advantages of the method:

• ✅ Multitasking support (you can open multiple apps at the same time).
• ✅ Optimized interface for the large screen.
• ✅ Ability to connect keyboard and mouse via Bluetooth.

⚠️ Note: On Xiaomi phones, DeX mode works only on models with Snapdragon 8xx (for example, Xiaomi 12 Pro or Black Shark 5). On a budget Redmi with Snapdragon processors 4xx/6xx Only screen mirroring will be available.

5. Alternative methods: DLNA and third-party applications

If standard methods don't work, you can use DLNA or specialized apps, and that's true for older TVs without Miracast or Google Cast.

Method 1: DLNA (for photo/video/music)

1. Turn it on on the phone. DLNA-server through settings → Connection and sharing → Transfer of media files.
2. On TV, open a media viewing app (e.g., Photos & Videos on Sony).
3. Select the phone in the list DLNA-Devices and play back the file.

Method 2: Apps like ApowerMirror or TeamViewer

• 📱 Install the app on your phone and TV (if on Android TV) TV).
• 🔗 Connect via Wi-Fi or PIN-code.
• 🎮 The delay will be higher (~500 ms), but it works on any device.

Method 3: Steam Link (for gamers)

If you stream games from PC to phone and then want to bring them to TV:

1. Install Steam Link on your phone and TV.
2. Connect your phone to your PC via Steam.
3. Turn on the phone screen to TV via Miracast or HDMI.

6. Problem Solving: Black screen, no sound, lag

Even if you do everything according to the instructions, you can have problems.

If nothing helps, try resetting your phone’s network settings:

Settings → System → Resetting → Resetting Wi-Fi, mobile network and Bluetooth

Or update your TV firmware (instructions for popular brands):

• Samsung: Settings → Support → Software Update → Update Now
• LG: Settings → All settings → General → About the TV program → Check updates
• Sony: Settings → About TV → System Update

💡

If the broadcast is permanently interrupted, the problem is most likely in the router: try connecting the phone directly to the TV via Wi-Fi Direct (without a router) or use a wired connection.

FAQ: Answers to Frequent Questions