How to block Xiaomi smartphone if the power button does not work: all ways

The situation when the power button on Xiaomi fails or ceases to respond to clicks, is familiar to many owners of smartphones of this brand. This is especially critical when you need to lock the screen — without a physical button, it seems that the device will remain vulnerable to accidental touch or access by third parties. However, there are at least 5 alternative ways to block Redmi, POCO or Mi without using a hardware button.

In this article, we will discuss all the current methods, from standard MIUI functions to advanced technical solutions using ADB. It is important to understand that some methods require pre-tuning, so if your button is still working, activate the option "Double Press to Lock" in the settings in advance - this will save you in the future.

Method 1: Using a double-press gesture

The simplest and most versatile method is to activate the Double-Tap to Lock feature, which is available on most Xiaomi models starting with the MIUI 10 and allows you to lock the screen with a double-tape over empty space on the desktop or status bar, the main advantage is that you do not need root or a PC connection.

How to turn on:

• 📱 Open the Settings. → Lock screen and password → Additional settings
• 🔧 Find the option "Double Press to Lock" (some firmware may call "Double-Tap Lock")
• 🔄 Activate the slider and confirm the action
• ✅ Check the work: double tap the empty space on the screen – the device should lock

Note: on some models (such as the POCO F3 or Redmi Note 10 Pro), this feature may be hidden in the Special Features → Gestures menu. If the option is not in the standard settings, try upgrading to the latest version of MIUI.

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On devices with AMOLED-If you have a double-touch screen, you might not be able to do it on a black background.

Method 2: Block through the notification panel

MIUI has a built-in lock button that is hidden by default in the notification bar to use:

1. Swipe down from the top of the screen to open the notification bar.
2. Turn the panel around completely (one more swipe down)
3. Find the “Block” icon (usually looks like a lock or a round button with a lock)
4. Click on it - the screen is locked.

If no button:

• 🔧 Go to Settings. → Notification panel and status bar → Quick setups
• 🔄 Find it in the “Block” list and drag it to the active area.
• 💡 On some firmware, the button is called "lock screen" or "Sleep"

This method works even if the power button is completely out of order, but requires the touch screen to be in good working order.

Method 3: Voice command via Google Assistant

If your Xiaomi has Google Assistant set up (or Alice from Yandex), you can lock the screen with a voice command, which is especially useful when the sensor is not responding or the power button is jammed.

Instructions for Google Assistant:

• 🎤 Say, "OK, Google, lock the screen")
• 🔄 If the command is not working, check the permissions: Open Settings → Annexes → All applications → Google Select “Permissions” and make sure that access to “Special Features” is enabled"
• 🔒 For security, set up voice confirmation in Settings → Security → Voice unlocking

For Alice from Yandex:

• 🎤 Say, "Alice, lock your phone"
• ⚙️ Pre-activate the skill "Phone Management" in the application Yandex

⚠️ Note: Voice lock may not work on devices with MIUI for the Chinese market (China) ROM) Because of the manufacturer's limitations, you'll need firmware on the global version.

Method 4: Blocking through ADB (for advanced users)

If the physical button doesn’t work and other methods aren’t available, you can block Xiaomi via Android Debug Bridge (ADB), which requires pre-configuring the debugging over USB and is suitable for users familiar with the command line.

Step-by-step:

1. 🖥️ Connect your smartphone to your PC through USB-cable (use the original cable for a stable connection)
2. 🔧 Enable Developer Mode: Go to Settings → The phone. → Version. MIUI Press "Version" MIUI" 7 times until the notification “You became a developer” appears"

Settings → Additional → For Developers

"Debugging by USB"

Win + R → cmd

adb devices

Make sure the device is identified (should appear its serial number)

adb shell input keyevent 26

(code 26 corresponds to the power button)

If the team doesn’t work, try an alternative:

adb shell am start -a android.intent.action.SCREEN_OFF

Install Xiaomi drivers on PC|Enable debugging on USB phone-on|Connect the original USB-cable|Check the visibility of the device through adb devices|Run the command line on behalf of the administrator-->

⚠️ Note: After blocking through ADB You can unlock the screen only in standard ways (password, fingerprint, Face). ID). If the power button does not work, set up the unlock in advance with a double tap or through a smart watch.

Method 5: Using a smart watch or fitness bracelet

Owners of the Mi Band, Amazfit or other smartwatches from Xiaomi can block the smartphone remotely.

• 📲 Make sure the watch is connected to your phone via the Mi Fit or Zepp app
• 🔧 In the settings of the watch, activate the option "Manage the phone" or "Block the screen"
• 🔒 On most Mi Band models, the lock is carried out by: Long-term pressing of the touch button of the bracelet or through the Quick Action menu in the companion application.

Advantages of the method:

• ✅ It works even if the phone sensor is not responding.
• ✅ It does not require a PC or internet connection
• ✅ You can lock the device at a distance of up to 10 meters (depending on the model of the watch)

Limitations:

• ❌ On some firmware MIUI Additional permissions for the Mi Fit application are required
• ❌ Mi Band 3/4 You may not be able to block new versions of Android 12+

Comparison of locking methods without power button

For most users, the best solution is a combination of double-touch (for everyday use) and voice commands (in case of sensor failure), and Mi Band owners should set the lock beforehand after hours, which is the most reliable way to break the power button.

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If the power button fails permanently, immediately disable the option "Automatically unlock when connected to trusted devices" in the security settings. This will prevent unauthorized access via Bluetooth devices.

What to do if none of the methods work?

If all of these methods are not available (e.g., the sensor does not respond, the ADB does not detect the device, and the watch is not connected), radical measures remain:

• 🔌 Hard Reset via Recovery: Turn off your phone (if possible by holding the power button) + Volume up) Press the power button + Volume up until the Mi logo appears In the Recovery menu, select "Reboot to system" - sometimes this temporarily "resuscitates" the button.

Repair of the power button

• The cost of replacing the button in the service center: from 800 to 2500 rubles (depending on the model)
• Xiaomi with a non-removable battery (for example, Mi 11) requires a complete disassembly

Use of the second device

• Connect your phone to another phone via Mi Share or Nearby Share
• Remotely send a lock command via applications like TeamViewer QuickSupport