How to make a second screen on a Xiaomi smartphone: all the ways + step-by-step

Using the second screen on Xiaomi smartphones opens up new possibilities: from comfortable watching movies on a large TV to productive work with multiple windows at the same time. However, many users face difficulties in configuring this feature - especially when it comes to models with a high-quality design. MIUI 12/13/14 or devices without Miracast support by default.

In this article, we will analyze all the current ways to connect the second screen: from the classic screen. HDMI-You will learn which Xiaomi models support screen duplication out of the box, how to get around the restrictions on budget devices, and what to do if the image is lagging or not transmitting sound. And also - a unique life hack for owners of Xiaomi TVs with a MIUI TV, which speeds up the connection by 2 times.

It does not matter whether you want to broadcast games on a monitor or use your smartphone as a document camera for presentations – here you will find working solutions taking into account the features of the firmware and hardware of your device.

1. Ways to connect the second screen on Xiaomi: a comparative table

Before we get to the detailed instructions, let’s determine which method is right for you, and below is a comparison of all the options available, taking into account their pros, cons and hardware requirements.

Note: on Xiaomi budget models (e.g. Redmi) 9A POCO M3) There may be no support for alternative DisplayPort mode USB-C. In this case, only wireless methods or adapters with external power supply remain.

2. Connection through HDMI: step-by-step instructions for Xiaomi

The wired method remains the most stable and versatile, especially for gamers or those who work with video. Here's how to connect Xiaomi to a TV or monitor through a video. HDMI:

1. Choose the right adapter: 📱 For modern models (Xiaomi) 12/13/14, Redmi Note 11/12, Poco F4/F5) need an adapter USB-C → HDMI Supported by DisplayPort Alt Mode. 🔌 For older smartphones (Redmi) 5/6, Mi A2) — Micro-USB → HDMI (For example, Slimport). ⚡ Please note that there is an additional port. USB-C For charging (or use a Power Delivery adapter).
2. Connect the adapter: Insert the adapter into the smartphone connector, and then connect it to the HDMI-The phone should display a notification that the external display is connected.
3. Set up the display mode: Go to Settings → Connected devices → HDMI (or settings → Screen. → Second screen mode on new versions MIUI). Here you can choose: 🔄 Screen duplication (the TV shows the same as on a smartphone). 🖥️ Screen expansion (TV becomes second monitor). 🎮 Only the second screen (image only on TV, smartphone turns off its display).

If the image does not appear:

• 🔌 Check if your adapter supports the output. 4K (Budget models may have a limitation 1080p).
• 🔄 Restart your smartphone and TV.
• 📱 Update the firmware MIUI Up to the latest version (old versions had bugs with the HDMI-exit).

Support for DisplayPort Alt Mode in your smartphone

High-quality adapter with chip (not cheap fake)

HDMI-2.0 or higher

Power supply for the adapter (if required)

Updated firmware MIUI-->

⚠️ Note: Some Xiaomi models (e.g. Redmi Note 10 Pro) when connected via HDMI You can turn off the charging. Use an adapter with an additional port. USB-C Power or Hub with Power Delivery Support.

3. Wireless screen duplication via Miracast

Miracast is a wireless image transmission standard built into most modern Xiaomi TVs and smartphones.It allows you to broadcast the screen wirelessly, but with some quality and latency restrictions.

How to turn Miracast on Xiaomi:

1. Make sure your TV supports Miracast (usually indicated in your network settings or Screen menu).
2. On your smartphone, open Settings → Connection and sharing → Wireless display (or settings) → Screen. → Wireless monitor in new versions MIUI).
3. Turn on the function and wait until the smartphone finds available devices.
4. Select your TV from the list and confirm your connection.

If Miracast doesn't work,

• 📶 Check that your smartphone and TV are connected to the same Wi-Fi network (not necessarily for all models, but recommended).
• 🔄 Restart router – sometimes connection issues are linked to blocking multicast traffic.
• 📱 Update the firmware of the TV and smartphone (in MIUI 12.5+ Miracast bugs fixed).
• 🔌 If the TV does not support Miracast, use an external adapter (such as AnyCast or EzCast).

Important nuance: on some Xiaomi models (for example, Poco) X3 Pro) Miracast can only work in duplication mode, not screen expansion. This is a firmware restriction and can only be circumvented through HDMI or specialized applications.

4. Mi Share (Xiaomi Cast): Quick streaming to Xiaomi TVs

Mi Share (formerly Xiaomi Cast) is Xiaomi’s proprietary technology for wirelessly transferring screens to the brand’s TVs.It runs faster than Miracast and supports more features, including streaming individual apps (like YouTube or Netflix).

How to use Mi Share:

1. Make sure your TV is working on MIUI TV (Like Mi. TV 4/5, Redmi Smart TV).
2. On your smartphone, open Settings → Connection and Sharing → Mi Share.
3. Turn on the feature and select the TV from the list.
4. Confirm the connection on both devices.

The advantages of Mi Share over Miracast:

• 🎮 Less latency (ideal for gaming).
• 📺 Support 4K HDR compatible.
• 🔊 The ability to broadcast only sound (for example, music).
• 📱 It works even without Wi-Fi (using direct Wi-Fi Direct communication).

⚠️ Warning: If you connect through Mi Share only through your smartphone, check the settings of the TV. → Select the output device HDMI ARC or external speakers.

💡

For Xiaomi owners 13/14: Turn on Game Turbo mode before connecting via Mi Share – this will reduce the delay to 50–70 MS, which is critical for shooters and racing.

5. Alternative methods: USB-C → DisplayPort and Third Party Applications

If standard methods don’t work, consider these options:

5.1 Connection through USB-C → DisplayPort

This method is relevant for flagships Xiaomi (for example, Xiaomi 12 Pro, Black Shark 5), where USB-C Supports DisplayPort Alt Mode:

• 🖥️ Permission before 4K@120Hz (on supported monitors).
• ⚡ Minimal latency (ideal for gamers).
• 🔌 Ability to charge your smartphone at the same time.

Equipment required:

• 🔌 adapter USB-C → DisplayPort (such as Baseus or Anker).
• 🖥️ Monitor with DisplayPort port.

Screen duplication applications

If the "iron" methods are not available, use third-party programs:

• 📱 ApowerMirror – supports broadcasting on PCs and TVs with Android TV. There is a function of controlling the smartphone from the large screen.
• 🖥️ TeamViewer QuickSupport – allows you to remotely connect to your smartphone from your computer.
• 🎮 Steam Link – Optimized for gamers (requires stable Wi-Fi).

Cons of such applications:

• ⏱️ High latency (not suitable for dynamic gaming).
• 📶 Requires a powerful Wi-Fi router (preferably 5 GHz).
• 💰 Some features are paid (for example, screen recording in ApowerMirror).

💡

For maximum productivity when used USB-C → DisplayPort Adapters with Realtek chip RTD2173 or Parade PS175 — They provide stable work with Xiaomi at high resolutions.

6. Solving common problems

Even with the right setup, Xiaomi users face common mistakes.

No sound when connecting the second screen

Causes and solutions:

• 🔊 In the settings of the smartphone, the wrong sound output is selected. Go to Settings → Sound. → Sound output and select HDMI or wireless display.
• 📺 The TV's off. HDMI ARC (You need to put it on the sound menu).
• 🔌 Uses a low-quality adapter without sound transmission support (check the specifications).

Image lagging or braking

What to do:

• 📶 Switch to Wi-Fi 5 GHz (if you use Miracast or Mi Share).
• 🔄 Reduce the broadcast resolution in the wireless display settings.
• 📱 Close all background apps (especially instant messengers and games).
• 🔋 Connect your smartphone to charging – performance restriction due to low battery charge can cause lags.

6.3 The TV does not find the smartphone (and vice versa)

Possible solutions:

• 🔄 Reboot both devices.
• 📶 Make sure they are connected to the same network (for some models).
• 🔧 Reset network settings on your smartphone (Settings) → System system → Reset → Resetting Wi-Fi and Bluetooth settings).
• 📱 Update the firmware MIUI and on TV.

If nothing helps, try an alternative adapter or check the compatibility of your smartphone model on the Xiaomi support site.

7. Hidden Second Screen Features on Xiaomi

Few people know, but in MIUI There are a few “chips” that make working with the second screen more convenient:

• 🎮 Second screen game mode: Some models (such as Black Shark or Poco F) automatically activate low latency when you connect to the TV. To activate it manually, go to Settings → Special facilities → Game settings → Low delay HDMI.
• 📱 Separate sound control: B MIUI 13+ You can configure the output of sound to your smartphone and TV at the same time. To do this, in the Mi Share settings, select Duplicate sound.
• 🖥️ Presentation mode: When connected to a projector, the smartphone automatically switches to Do Not Disturb mode and disables notifications. To turn this on manually, use the command: adb shell settings put global settings presentation_mode 1
• 🔋 Optimizing energy consumption: In Settings → Battery → Performance mode select High Performance to reduce the lags when broadcasting.

In the models with MIUI 14, there's an experimental Extended Desktop feature that allows you to use the TV as a second multitasking monitor (similar to Samsung DeX:

1. Connect to HDMI or Mi Share.
2. In the settings of the second screen, select Desktop Mode.
3. Install the application MIUI+ from the Mi App Store (requires Xiaomi account registration).

FAQ: Frequent questions about the second screen on Xiaomi