Broadcasting the screen of a Xiaomi smartphone to a large monitor or TV opens up new possibilities, from comfortable watching movies to showing presentations or streaming games. However, users often face problems: there is no sound when connecting via HDMI, the screen flickers through Miracast, the phone simply does not see the monitor. In this article, we will analyze all the current ways of connecting – from wired (via USB-C → HDMI) to wireless (via Wi-Fi Direct or Google Cast), as well as nuances for different models of Redmi, POCO and flagship Xiaomi 13/14.
It is important to consider that the connection methods depend on the version of MIUI (since MIUI 12 algorithms have changed), the type of connector on the phone (classic USB-C or outdated Micro-USB), as well as on the capabilities of the monitor (the presence of an HDMI port, support for Miracast or AirPlay). For example, smartphones POCO F5 and Xiaomi 13 Ultra support DisplayPort Alt Mode via USB-C, which allows you to display an image in 4K@60Hz, whereas budget Redmi 10A are limited to 1080p resolution.
If you’ve tried to connect before and encountered an error like “Device Unconnected” or “Miracast Unsupported,” you’ll find solutions to these problems, from resetting network settings to manually activating developer mode. And for gamers, a bonus has been added: how to minimize input lag when streaming games via Xiaomi Game Turbo.
1. Wired connection via USB-C → HDMI (the most stable way)
This method guarantees minimum latency and maximum picture quality (up to 4K@60Hz on supported models). To connect, you will need a cable or adapter from USB-C to HDMI, and it is important to choose the right option:
- 🔌 Passive adapter (up to 20)$) — Suitable for phones with DisplayPort Alt Mode support (e.g. Xiaomi 12 Pro, POCO F4 GT). No extra food.
- ⚡ Active adapter with external power (from 30)$) — It is required for models without Alt Mode (for example, Redmi Note 11.
- 🎮 Multiport docking station (from 50)$) — allows you to simultaneously display the image on the monitor, connect the keyboard / mouse and charge the phone.
How to connect:
- Insert the adapter into the USB-C port of the phone (for active models, pre-connect the power).
- Connect the other end of the cable to the HDMI port on the monitor.
- The phone will appear notification “Connected to HDMI” – tap it and select the display mode (Duplicate screen or Expand desktop).
- If the image does not appear, go to Settings → Display → HDMI mode and select the desired resolution.
Enable Developer Mode (Settings → About Phone → MIUI Version → 7 taps)
Activate debugging over USB (Settings → Additional → For developers)
Check support for DisplayPort Alt Mode (in model specifications)
Update MIUI Up to the latest version (Settings) → Updating the system)-->
An important caveat: some monitors may not transmit audio over HDMI.
- Connect headphones or speakers to your phone via Bluetooth.
- Use a separate 3.5mm → RCA cable for audio (if the monitor supports).
- Enable the option "Send sound over HDMI" in the developer settings.
⚠️ Note: On phones with MediaTek Helio G (e.g. Redmi) 9A) DisplayPort Alt Mode may not be supported, in which case wired connection is only possible via an externally powered active adapter or wireless methods.
2. Wireless broadcast via Miracast (built-in MIUI function)
Miracast is a wireless screen transmission standard supported by most modern Xiaomi phones and Wi-Fi Direct monitors/TVs. The advantages of the method are no wires and support for Full HD. Disadvantages: possible delays up to 100 ms and dependence on the stability of Wi-Fi.
Instructions for connection:
- Make sure the monitor supports Miracast (see Screen Mirroring or Wireless Display on the TV menu).
- On your phone, open Settings → Connections and Sharing → Screen Transfer.
- Slip the name of your monitor in the list of available devices.
- Confirm the connection on both devices (entry may be required) PIN-code).
| Xiaomi model | Miracast support | Max, permission. | Delay (MS) |
|---|---|---|---|
| Xiaomi 13/14 Pro | Yes (MIUI 14+) | 1080p | 50–80 |
| POCO F5 | Yes (MIUI 13) | 1080p | 60–90 |
| Redmi Note 12 | Yes (MIUI 13) | 720p | 80–120 |
| Redmi 10C | Limited (MIUI 12) | 480p | 100+ |
If the monitor is not listed:
- 🔄 Reboot both devices.
- 📶 Connect your phone and monitor to the same Wi-Fi network (even if you use Wi-Fi Direct).
- 🔧 Turn on the developer mode and activate the option "Debugging over Wi-Fi".
- 📱 Update the firmware MIUI until the latest version MIUI 14 bugs fixed with Miracast).
Why Miracast might not work for Xiaomi
3. Connect via Google Cast (Chromecast or Built-in Cast)
If your monitor or TV supports Google Cast (for example, through the Chromecast console or the built-in feature on Android TV), you can stream the screen using the Google Home app.This method is convenient for watching videos, but is not suitable for games due to high latency.
Step-by-step:
- Install the Google Home app from the Play Market.
- Connect your phone and monitor to a single Wi-Fi network.
- Open Google Home, tap the icon of your Chromecast or Android TV.
- Select "Translate screen" → "Start broadcast".
Limitations of the method:
- 🎬 Video DRM-Protection (Netflix, Disney)+) It may not be available due to Widevine restrictions.
- 🎮 Latency reaches 200-300 ms – unacceptable for dynamic games.
- 🔊 The sound is transmitted only through Chromecast, some monitors may not be available.
Wired (USB-C → HDMI)|Miracast|Google Cast|Other-->
4. Use of third-party applications (ApowerMirror, TeamViewer)
If the built-in methods don’t work, third-party utilities come to the rescue, such as ApowerMirror, which allows you to broadcast the screen over Wi-Fi or USB with minimal delays, and TeamViewer QuickSupport is suitable for remote technical support.
Comparison of popular applications:
| Annex | Connection method | Delay (MS) | Sound support | Payment |
|---|---|---|---|---|
| ApowerMirror | Wi-Fi/USB | 30–50 | Yes. | Free (with watermark) |
| TeamViewer | Internet | 100–200 | No. | Free for personal use |
| Scrcpy | USB/Wi-Fi (ADB) | 10–20 | No. | Free of charge. |
| Miracast (built-in) | Wi-Fi Direct | 50–100 | Yes. | Free of charge. |
Instructions for ApowerMirror:
- Install the application on your phone and PC (if you broadcast to the monitor via a computer).
- Connect both devices to the same Wi-Fi network.
- On your phone, run ApowerMirror and select "M" (mirroring).
- Click "Start Now" and confirm your PC connection.
⚠️ Note: When using Scrcpy, you need to activate Debugging by USB And then we put the phone on a cable to the PC for the first setup, and that's the only way to get a latency of less than 20 milliseconds, which is critical for gamers.
5. Connect via MHL (for older Xiaomi models)
MHL (Mobile High-Definition Link) is an outdated Micro-USB video transfer standard that is current for Xiaomi phones until 2018 (e.g. Mi 5, Redmi Note 4). Today, this method is practically not used, but if you have an old model, here is how to do it:
Equipment required:
- 🔌 MHL-Adapter (e.g. Micro-USB) → HDMI).
- ⚡ power supply (MHL requires an extra charge).
- 📺 Port monitor HDMI.
Instructions:
- Connect the adapter to the Micro-USB port of the phone.
- Connect the adapter to the monitor via HDMI.
- Connect the charger to the Micro-USB port on the adapter (required!).
- On the phone screen, select the display mode.
On phones newer than Xiaomi Mi 8 (2018), MHL support is not available – use USB-C → HDMI or wireless methods.
6. Solving common problems
If there are any errors in connection, use this instruction:
- 🔴 Error: "Can't connect to the device" Solution: Reboot the phone and monitor, turn off VPN, Check the compatibility of Wi-Fi standards (set the router to the 802.11ac instead 802.11n).
- 🔊 No sound when connected to HDMI Solution: In the developer settings, turn on "Deactivate absolute volume" and "Transmit sound over the HDMI".
- 🖥️ Screen flickering or slowing Solution: Reduce the broadcast resolution in Miracast settings or use a wired connection.
- 📵 Phone does not see monitor Solution: Update firmware MIUI, Reset network settings (Settings) → SIM-maps and mobile networks → Resetting network settings).
💡
If you stream high-bitrate video (like 4K HDR), reduce the resolution to 1080p in Miracast settings – this will reduce the load on the processor and eliminate lags.
7.Optimization for gamers: how to reduce latency
To stream games with Xiaomi on the monitor, it is critical to minimize input lag.
- 🎮 Use a wired connection (USB-C → HDMI DisplayPort Alt Mode).
- 📶 Disable background apps through Settings → Annexes → Auto-start.
- ⚡ Activate Game Turbo Mode (Settings) → Special facilities → Game Turbo).
- 🔧 Install Scrcpy with the settings: scrcpy --bit-rate 10M --max-fps 60 --no-audio
On phones with Snapdragon 8 Gen 2 (such as Xiaomi 13 Pro), wired latency is less than 10 ms, which is comparable to games on PC. For comparison, when broadcasting through Miracast, the lag reaches 80-120 ms, which makes the method unsuitable for shooters or fighting games.