Reassign buttons to Xiaomi Poco X3 Pro: all ways and life hacks

Xiaomi Poco X3 Pro is a popular smartphone with powerful stuffing and flexible settings, but the standard location of the volume and power buttons is not always convenient. For example, when using the device with your left hand or horizontal. Fortunately, the manufacturer and third-party developers offer several ways to swap the buttons in places, from built-in functions to deep system changes.

In this article, we will look at all the available methods, from simple MIUI settings to working with ADB and installing custom firmware, and tell you what risks certain solutions carry, and give you recommendations on choosing the best option for your tasks. If you want to not only swap buttons, but also customize them to yourself (for example, add double press or change the response to retention), here you will find the answers.

Important: some methods require unlocking the bootloader or the rights of the superuser. We will describe each step in detail, but remember that any manipulation of the system you perform at your own risk.

Method 1: Built-in MIUI settings (without root)

The easiest and safest way is to use the built-in MIUI features. Unfortunately, the standard Poco X3 Pro firmware doesn’t have a direct option for reassigning buttons, but there is a workaround through customization of special features.

Here's how it works:

• 🔧 Go to Settings. → Special facilities → Physical buttons.
• 🔄 Here you can change the behavior of the power button (for example, enable double pressing for the camera), but there is no complete change of places of the volume buttons and power.
• 📱 Alternative: Activate One-Hand Mode in Settings → Additionally. → One-handed mode. It doesn't swap the buttons, but it makes them more accessible when you hold your smartphone with one hand.

If you want to swap the buttons, it's not a good method, but it's useful for those who want to optimize their control without making a major change to the system.

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In MIUI 14 and later, the option “Quick press the power button” appeared – it allows you to assign a double press to the launch of any application (for example, a flashlight or Google Assistant).

Method 2: Use the Button Mapper app (without root)

Button Mapper (available on Google Play) allows you to reassign buttons without superuser rights, but with some restrictions. On the Poco X3 Pro, it works stably, if you follow the instructions.

Step-by-step:

1. Download and install the Button Mapper.
2. Launch the application and provide all the necessary permissions (including Special Features and Overlay over other windows).
3. Select the button you want to reassign (such as Volume Up).
4. Assign a new action, such as a Power dialog or a Back.
5. Save the settings and restart the smartphone.

Limitations of the method:

• ⚠️ Not all activities are available without root (for example, you can not completely change the volume and power buttons in places).
• 🔄 The application can reset the settings after the update MIUI.
• 📵 Some features (such as running button-holding apps) require ADB-team.

Enable USB debugging in developer settings | Install ADB drivers on PC | Download Button Mapper from official source | Provide all permissions requested-->

Method 3: Reassign buttons via ADB (without root)

If standard methods don't work, you can use ADB (Android Debug Bridge) to change system settings, which doesn't require superuser rights, but requires connecting your smartphone to your computer.

Instructions:

1. Turn on USB Debugging in Settings → About Phone → MIUI version (click 7 times to activate Developer Mode), then go back to Settings → Additional → For Developers.
2. Connect Poco X3 Pro to your PC and confirm the debugging permission.
3. Download Platform Tools (includes adb) and unpack the archive.
4. Open the command line (cmd) in the adb folder and type:

adb shell


settings put secure sysui_nav_bar "space,back;home;recent,space"

To reassign the volume buttons, use:

adb shell settings put system volume_key_long_press_power 1

This command makes it so that a long press on the volume button will open the power menu (like a power button).

Advantages of the method:

• ✅ No root.
• ✅ It works on most versions. MIUI.
• ✅ You can undo changes with the adb shell settings delete system. volume_key_long_press_power.

Method 4: Complete reassignment with Magisk and modules

If you're ready to get root rights, the options for customizing buttons are almost limitless, and one of the most reliable ways is to install the Xposed Edge or Button Remapper module via Magisk.

Step-by-step:

1. Unlock the bootloader on Poco X3 Pro (instructions on the official Xiaomi website).
2. Install Magisk.
3. Download the Button Remapper module in the Magisk repository.
4. Activate the module and restart the smartphone.
5. In the module settings, select which buttons and which actions to reassign.

Example of settings for a complete change of buttons:

⚠️ Attention: Unlocking the bootloader and obtaining root rights resets all data on the device and may lead to a loss of warranty.In addition, some banking applications (for example, Sberbank Online) may stop working.

Method 5: Custom firmware (for experienced users)

If you want to not only swap buttons but also get extra features, consider installing custom firmware like LineageOS or Pixel Experience, which offer flexible button settings out of the box.

The advantages of custom firmware:

• 🔧 Full control over the assignment of buttons (including double taps and gestures).
• 🚀 Optimized performance and no bloat (extra Xiaomi apps).
• 🔄 Regular security updates.

Cons:

• ⚠️ Loss of warranty and risk of “bricking” the device.
• 🔌 Not all Poco functions X3 Pro can work correctly (e.g., camera or NFC).
• 📱 Requires unlocking the bootloader and experience with fastboot.

Recommended firmware for Poco X3 Pro:

• 📱 Pixel Experience – Pure Android with button settings in Settings → System system → Gestures.
• 🔄 LineageOS - stable firmware with the option Button Settings.
• 🎯 ArrowOS – Balance between customization and performance.

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Custom firmware gives you maximum freedom, but requires technical skills. If you're a beginner, start with Button Mapper or ADB.

Frequent problems and their solutions

When reassigning buttons to the Poco X3 Pro, users encounter common errors, and we will examine the most common and ways to fix them.

Problem 1: Buttons do not respond after reassignment.

• 🔄 Restart your smartphone – sometimes changes only apply after a reboot.
• 🔧 Check for conflicts with other apps (such as Greenify or Battery Saver).
• ⚠️ If you've used ADB, Make sure that the commands are executed without errors (check the logs in cmd).

Problem 2: Reset your settings after the MIUI update.

⚠️ Attention: Updates MIUI reset ADB And Button Mapper. Before you upgrade, backup your commands. ADB in a text file to quickly restore settings.

Problem 3: The navigational gestures are not working.

• 🔧 Turn off button reassignment in horizontal mode (if you use gestures).
• 📱 In the settings MIUI Select Full-screen gestures instead of Navigation buttons.

FAQ: Answers to popular questions