How to completely disable fast boot on Xiaomi: instructions for all models

The fastboot feature on Xiaomi, Redmi and POCO smartphones is often a source of confusion for users. On the one hand, it speeds up the device’s turn on after shutdown, saving a few seconds. On the other hand, it can interfere with full power outages, which is critical when diagnosing hardware problems, firmware through EDL or even a conventional hard reset through physical buttons. In this article, we will discuss all ways to deactivate fast boot, including hidden MIUI settings and alternative methods for technically advanced users.

It’s important to understand that the term “fast boot” in the context of Xiaomi can mean two different things: 1 Fastboot Mode, which is activated when the power buttons are held + volume down. 2 Quick Start, which does not actually turn the phone off completely, but puts it into a deep sleep state.

This article is relevant for all modern Xiaomi devices based on MIUI 12/13/14 (including HyperOS), as well as models with Qualcomm and MediaTek processors. If your smartphone is released before 2019, some menu items may differ - we will warn you about this separately.

What is a “fast boot” on Xiaomi and why disable it

Quick Boot or Fast Startup is a proprietary Xiaomi technology that simulates turning off the phone but actually puts it into deep sleep mode.

• 🔋 The battery continues to run out (albeit slower than in active mode), which can be a problem if you leave the phone off for a long time.
• 🔧 It is not possible to perform a hardware reset via a button combination (Power + Volume up) as the device does not shut down completely.
• 🛠️ Access to EDL mode (emergency firmware) is blocked, which is critical when building bricks are restored.
• 📱 Some diagnostic tests (e.g., checking the display for broken pixels) require a total power outage.

On the other hand, the feature is useful for everyday use: the phone turns on in 1-2 seconds instead of 10-15.If you do not need the above "side effects", you do not need to turn off Quick Boot.

• 🔄 Plan to flash your phone through Fastboot or EDL.
• 🔋 You want to completely drain the battery for calibration.
• 🛠️ Diagnose hardware malfunctions (e.g., overheating or communication module problems).
• 📦 Prepare the device for sale and want to make a full reset.

Then turning off the fast download becomes a necessity, and then we'll look at all the ways that are available, from the standard to the hidden.

Method 1: Disconnect via MIUI settings (official method)

The easiest and safest way is to use the built-in MIUI settings. It is suitable for most models released after 2020 (Redmi Note 10, Xiaomi 11/12/13, POCO F3/F4 and later).

1. Open the Settings app (cog icon).
2. Go to the Features → Additional settings (on some firmware, the path may be System → Advanced settings).
3. Find the "Quick Start" item and move the slider to the off position.
4. Confirm the action if a warning appears.

After that, the phone will completely turn off when the power button is held, to check the result:

Hold the power button. 5-7 seconds|Wait for a full shutdown (screen will go out, vibration is absent)|Wait. 30 Just a second and try to turn on your phone – it should take you a while to load. ~10-15 seconds (instead of seconds) 1-2)|Try to get into recovery (food) + Volume up – if the shutdown is successful, the recovery menu will appear-->

⚠️ Warning: On some models (Redmi 9A/9C, POCO M3), the item may be called Fast Reboot or hidden in the Settings submenu → Battery → Power modes. If you don't find an option, move on to the next method.

Also note that after disabling Quick Boot:

• ⏱️ The phone’s turn-on time will increase to 10-20 seconds (depending on model).
• 🔄 Forced reset (Power + Volume up) will work more steadily.
• 📉 The charge consumption in the "off" state will decrease to 0% (the phone will indeed be turned off).

Method 2: Disconnect via ADB (for advanced users)

If your version of MIUI does not have the "Fast Enable" option in the settings, you can use the ADB command. This method works on all Xiaomi devices with the bootloader unlocked and USB debugging enabled.

1. Download and install Platform Tools (the official package from Google).
2. Turn on the developer mode on the phone: Go to Settings → About phone. Press 7 once on "MIUI Version." Return to the main settings menu and a new "Developers" section will appear.
3. In the For Developers section, activate: "Debugging by USB." "OEM Unlock" (if you plan to run firmware).

"File transfer"

cmd

platform-tools

adb devices

If the device is determined (the serial number will appear), follow the command:

adb shell settings put global fastboot_poweroff 0

Once you have completed the command, the phone will shut down completely when you press the power button. To return a quick boot, use the same command, replacing 0 with 1.

⚠️ Warning: On some models (Xiaomi 12 Pro, Redmi K50) after disabling Quick Boot via ADB, the MIUI protection may be triggered and the parameter resets after the reboot, in which case you will have to use the build.prop file editing method (described below).

If the adb command fails, check:

• 🔌 Correct cable connection (try another port) USB).
• 📱 Debugging permission on the phone (a request will appear when you first connect).
• 🔄 Reinstall Xiaomi drivers through the official website.

Method 3: Edit build.prop (for power users)

If previous methods have failed, you can manually edit the system file build.prop. This method requires root rights or access to TWRP, so it is only suitable for advanced users. Incorrect editing build.prop can lead to a download cycle!

Instructions:

1. Back up the current build.prop file (located in /system/build.prop).
2. Open the file through any root-access text editor (such as Root Explorer or Mixplorer).
3. Add a line to the end of the file: ro.config.hw_quickpoweron=false
4. Save the changes and restart the phone.

If the phone doesn’t turn on or loops on the MI logo after editing, return the original build.prop file via TWRP.

⚠️ Warning: On HyperOS devices (e.g., Xiaomi 14, Redmi K70), the path to the file may be different: /vendor/build.prop or /system/system/build.prop. Before editing, check for the ro.config.hw_quickpoweron=true string — if it is not there, adding a new string will not work.

An alternative is to use Magisk's "QuickSwitch" module, which allows you to manage fast boot without manually editing system files, and you can download it from the Magisk repository.

Method 4: Forced shutdown through button combination

If you need to turn off your phone completely once without turning off the Quick Boot feature, you can use a hardware button combination. This method works on all Xiaomi models, including the old ones (Redmi 4X, Mi A1):

1. Hold the power button and volume up simultaneously for 10-15 seconds.
2. The screen will go out and the phone will shut down completely (without vibration).
3. To turn on, hold the power button for 5-7 seconds.

This doesn't cancel the Quick Boot setup, it just forcefully shuts down the power, and it's useful if you need to:

• 🔧 Perform hard reset through Recovery.
• 🛠️ Put the phone in EDL mode for firmware.
• 📱 Check battery operation when completely disconnected.

⚠️ Warning: On some models (POCO F1, Mi 8), prolonged button retention can result in a hard reboot instead of turning off. If the screen flashes and the phone reboots, try holding the buttons longer (up to 20 seconds) or use the Power + Volume down combination.

Also, note that on devices with MediaTek (e.g. Redmi 10A, POCO C31), a forced shutdown may not work the first time, in which case, repeat the procedure 2-3 times.

What to do if the fast download does not turn off

If none of the above methods worked, the problem may be related to:

If you suspect that the problem is with the firmware, check its integrity:

• Go to Settings → About Phone → MIUI version.
• Compare the build number with the official one on the MIUI website.
• If the versions do not match - reset to factory settings or reflash the phone.

For devices with HyperOS (such as Xiaomi 14), an additional step may be required:

If nothing works, the last option is to unlock the bootloader and install custom firmware (like LineageOS or Pixel Experience), where Quick Boot is not available by default, but this will lead to a loss of warranty and potential problems with Widevine (not being able to watch Netflix in HD).

Frequent Mistakes and How to Avoid Them

When you turn off fast download, users often encounter common errors.

1. The phone doesn't turn off even after the Quick Boot is turned off. Reason: On some models (Redmi Note 11, POCO X4 Pro), the function is duplicated in the battery settings. Solution: check Settings → Battery → Power Modes and turn off the "Fast Reboot" option.
2. ADB can't see the device. Reason: Drivers are not installed or debugging is not enabled. Solution: reinstall the Mi PC Suite and check the debugging permission on the phone (notification should appear).
3. After editing build.prop, the phone doesn't turn on. Cause: Syntactic error or incompatibility with the MIUI version. Solution: restore the original file via TWRP or reflash the phone.
4. The button combination doesn't work. Reason: Button sticking or hardware defect. Solution: Try pressing the buttons with force or using another method of turning off.

Users also often confuse Quick Boot with Fastboot mode, so if your phone flashes a red LED when it's off and doesn't respond to the power button, it's in Fastboot.

• Hold the power button for 10-15 seconds.
• Or connect your phone to your PC and execute the command: fastboot reboot

If your phone is stuck in Fastboot and doesn’t respond to commands, try:

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To force you out of Fastboot on Xiaomi with a Qualcomm processor, hold Power + Volume up + Volume down simultaneously for 20 seconds. On MediaTek, it can help to remove the battery (if it's removable) or wait for a full discharge.

FAQ: Answers to Frequent Questions

If your question isn’t covered in the FAQ, check out Xiaomi’s official documentation for your model or consult the XDA-Developers or 4PDA forums, which have a lot of up-to-date discussions on firmware and customization.

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Disabling fast boot on Xiaomi does not affect the performance or stability of the system.It is solely a matter of convenience and the need to completely turn off the power for technical operations.