How to set up Miracast on Xiaomi devices: from connectivity to fine optimization

Wirelessly transferring a screen from Xiaomi to a TV or monitor via Miracast is a convenient way to stream videos, games or presentations without unnecessary wires. However, many users face problems ranging from lack of signal to constant connection breaks. In this article, we will discuss not only the basic settings, but also hidden parameters that will help stabilize data transmission, reduce latency and even improve picture quality.

It's important to understand that Miracast technology works on a point-to-point basis -- no router, directly between devices. This means that both devices must support Wi-Fi Direct and Miracast. On Xiaomi, this feature is available on most models, starting with the Mi 5 and Redmi Note 4, but there are nuances with firmware and regional restrictions. If your smartphone or TV can't see each other, the problem may lie not in settings, but in hardware constraints.

We tested the instructions on the current versions. MIUI 14 and HyperOS, and on Mi TVs TV A2, Mi TV Q2 Redmi Smart TV X. All steps apply to older models, but some menu items may differ.If your device doesn’t make it to this list, check out Miracast’s specifications support on Xiaomi’s official website.

1. Checking the compatibility of devices before setting up

Before you start connecting, make sure both devices support Miracast. On Xiaomi smartphones, this feature is built into the system, but can be disabled in some regional firmware. ROM) Sometimes there is no wireless broadcast option due to local regulatory restrictions.

To check the support on your smartphone:

• 📱 Open the Settings. → Connections and sharing → Wireless (or Cast) If you don't have a point, your model doesn't support Miracast.
• 🔍 See the specifications of your model on the Xiaomi website.
• 🛠️ If there is no feature, but there is hardware support, try changing the firmware region to Global or EEA (This may require unlocking the bootloader).

For Xiaomi TVs, checking is even easier:

• 📺 Go to Settings. → The Internet and the Internet → Miracast (or Wireless Projection).
• 🔄 If you have an option but it doesn’t work, upgrade your TV firmware to the latest version.
• ⚠️ On models older than 2018 (Mi) TV 3S, Mi TV 4A) You may need an external Miracast adapter because the built-in module is often unstable.

2. Step-by-step Miracast setup on Xiaomi smartphone

If both devices are compatible, we'll switch to connectivity, starting with a smartphone, because that's the most common source of the signal. MIUI 12-14 and HyperOS, including Redmi Note 12, POCO X5 Mi 13.

Algorithm of action:

1. Activate Wi-Fi and Bluetooth on your smartphone (this is a must, even if the connection is without a router).
2. Open Settings → Connections and Sharing → Wireless broadcast.
3. Turn on the Wireless Broadcast (or Cast) slider.
4. From the list of available devices, select your TV or monitor. If you don't have one, click Update.
5. Confirm the connection on both devices (entry may be required) PIN-code).

Once successfully connected, the screen of the smartphone will be duplicated on the TV, but there are a few nuances:

• 🔊 The default sound is transmitted to the TV. To return it to your smartphone, click on the speaker icon in the notification bar.
• 🎮 For games, it is recommended to enable the Game broadcast mode (available on the MIUI 13+), to reduce the delay.
• 📶 If the image is slowing down, try going to Miracast settings and select the mode. 720p 30fps instead 1080p 60fps.

Enable Wi-Fi and Bluetooth

Update the firmware to the latest version

Close background applications (especially messengers)

Shut down. VPN (can block the broadcast)

Check battery power (below 20% connection may break)-->

On some models, Redmi 9, POCO M3) And when you connect, you can lose the Internet, and that's because Miracast uses Wi-Fi Direct, which conflicts with the main connection:

1. Turn off Miracast.
2. Go to Settings. → SIM-maps and mobile networks → Access Point and modem.
3. Turn on modem modem and connect the TV to the created access point.
4. Then activate Miracast again.

3.Tune Miracast on Xiaomi TVs

Xiaomi TVs are usually easier to set up than smartphones, but there are pitfalls here too. TV 9 (e.g. Mi) TV 4S) There may be no automatic resolution determination, which will cut or stretch the image.

Instructions for televisions:

1. Turn on the TV and go to Settings → The Internet and the Internet → Miracast.
2. Activate the option of wireless projection.
3. Select Connection Mode: Standard for normal broadcast; Game for reduced latency (available on Mi) TV Q1 Audio Only – if you want to transmit only sound.

Wait for the TV to detect the smartphone and confirm the connection.

If the TV doesn't see the smartphone:

• 🔄 Reboot both devices.
• 📡 Check if the TV is powered on - it can block Wi-Fi Direct.
• 🛠️ Update the TV firmware through Settings → On TV. → Updating the system.

On Xiaomi’s PatchWall TVs, the Miracast option may be called Wireless Display or Screen Mirroring. Don’t confuse it with Google Cast, which is another protocol that requires you to connect to the same Wi-Fi network.

4. Connection optimization: how to reduce latency and lags

Miracast's main problem is image latency, which is particularly noticeable in games and videos. On Xiaomi, this is partly solved by codec and bitrate settings. Here's what you can do:

On a smartphone:

• 🎛️ Go to Settings. → Connections and sharing → Wireless broadcasting → Additional settings.
• 📊 Select Speed Priority instead of Quality Priority.
• 🔄 If available, activate Low Latency (available on the POCO F4, Redmi K50 newer).
• 🔋 Turn off Adaptive Brightness – It Can Cause Micro Delays When Lighting Changes.

On TV:

• 🖥️ In the Miracast menu, select Game mode (if any).
• 🔄 Turn off post-processing of the image: Settings → Picture → Movement → Smoothness of movement (off.).
• 📶 If the TV supports 5 GHz Wi-Fi, link Miracast to this frequency (in router settings).

Additional tips for stability:

• 🚫 Do not use Miracast at the same time as downloading files or online games – this overloads the Wi-Fi module.
• 📡 Make sure there are no physical barriers between the devices (walls, furniture, etc).
• 🔋 On your smartphone, turn on Performance Mode (Settings) → Battery → Performance mode).

💡

If the delay is critical (for example, for shooters), try connecting via cable. USB-C to HDMI. On Xiaomi, it works without root rights on models with DisplayPort Alt Mode support (list: Mi 10, Mi 11, Redmi) K40 newer).

5. Solving Common Problems with Miracast

Even with the right setup, Miracast can run unstable, and we’ve collected common bugs and fixes that we’ve tested on Xiaomi devices.

If neither of these methods worked, try resetting the network settings on both devices:

1. On a smartphone: Settings → SIM-cards and mobile networks → Reset network settings.
2. On TV: Settings → The Internet and the Internet → Resetting network settings.

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On HyperOS devices (e.g. Xiaomi 14), Miracast may be called Smart Cast and be in the Screen and Brightness section.

6. Miracast Alternatives for Xiaomi Devices

If Miracast is unstable or your devices don’t support it, consider alternative ways to stream the screen.

1. Google Cast (Chromecast)

• ✅ It works via a router, more stable than Miracast.
• ✅ Supports 4K HDR new-model.
• ❌ Requires a connection to a single Wi-Fi network.

How to set up:

1. Connect Chromecast or built-in Google Cast on your Xiaomi TV.
2. On your smartphone, install the Google Home app.
3. Select the device to broadcast in the notification panel (Cast).

2. DLNA (via)

• 📁 Suitable for broadcasting photos, videos and music.
• 📱 It works through apps like Mi Home or LocalCast.
• ⚠️ Does not transmit the screen in full (media files only).

3. Cable connection (USB-C/HDMI)

• 🔌 Zero latency, maximum quality.
• 🎮 Perfect for gamers.
• ❌ Requires an adapter (e.g. Xiaomi) USB-C to HDMI).

⚠️ Attention! On Xiaomi smartphones with Mediatek processors (for example, Redmi Note 11) cable connection to the Internet HDMI It may not work due to lack of support for DisplayPort Alt Mode. Before buying an adapter, check compatibility on the manufacturer's website.

7 Safety when using Miracast

Wireless screen broadcasting is convenient, but not always secure. When connected via Miracast, your smartphone becomes vulnerable to potential attacks, especially if you use public networks.

Basic precautions:

• 🔒 Always confirm the connection on both devices (do not miss the request). PIN-code).
• 📵 Turn off Miracast after use, especially in public places.
• 🛡️ On your smartphone, turn on Personal Data Protection (Settings) → Confidentiality).
• 🔄 Regularly update the firmware in new versions MIUI HyperOS and Wi-Fi Direct vulnerabilities are closed.

If you are broadcasting sensitive information (such as banking applications), use a cable connection or special secure solutions like Xiaomi Mi Share (for transferring files without broadcasting the screen).

⚠️ Attention! On some Xiaomi firmware (especially custom ones), Miracast can transmit all notifications, including messages from messengers. → Notifications → Privacy of notifications and disable the display of sensitive data on the locked screen.

FAQ: Frequent questions about Miracast on Xiaomi