Owners of Xiaomi, Redmi and POCO smartphones often experience a device that spontaneously reboots to Recovery Mode or freezes on the logo when trying to turn off, and the reason for this behavior is overwhelmingly the activated Fast Boot feature, an option designed to speed up the start of the system, often creates process conflicts in practice, preventing the phone from properly completing or updating.
When you try to turn off your smartphone, but instead of completely shutting it down, it restarts, or when you turn it on, it’s a sure sign that Fast Boot requires your intervention. In this article, we’ll discuss why this feature causes crashes, how to properly disable it through the standard menu, and what to do if the usual method is not available.
Ignoring this problem can lead to more serious consequences, including the inability to install firmware updates or loss of data in emergency resets. So if your Xiaomi is behaving unstablely, the first step should be to manage the boot parameters. Let's take a detailed look at how this feature works and how to deactivate it.
⚠️ Note: If your phone is already in Recovery mode (a menu with a selection of languages), just turn it off with the power button may not work – it will turn on again in the same menu. In this case, you must first disable the function through the settings menu, if the system allows you to log into the desktop, or use special button combinations for forced reboot, which will be discussed below.
What is Fast Boot and Why Does It Cause Problems?
The Quick Boot function was introduced by the developers of MIUI to reduce the time of the smartphone turn on, and the principle of its operation is that when the device is turned off, the system does not complete all processes, but turns the OS kernel and drivers into a hibernation state. The next time you press the power button, the phone reads data from memory, bypassing the long process of initializing the equipment.
However, on devices with limited RAM or in the presence of software conflicts, this mechanism fails. Instead of “falling asleep”, the system receives a signal to restart, but due to “stuck” processes, it can not complete the shutdown cycle, as a result, the smartphone cyclically restarts or falls into the service menu.
Especially often, problems are observed after updating the firmware or installing heavy applications. If you notice that the battery discharges faster than usual in a switched off state (overnight), this can also be an indirect sign of a malfunction of the fast boot function, which prevents the processor from going into deep sleep.
- 🚀 Accelerated Start: The main purpose of the function is to start the system for 10-15 seconds instead of standard 30-40 seconds.
- 🔄 Process Conflicts: Incomplete termination of background services leads to errors on the next turn on.
- 🔋 Impact on battery: In rare cases, the mode may cause micro-discharges of the battery when turned off.
How to turn off Fast Boot through the standard settings menu
The easiest and safest way to get rid of the intrusive feature is to use a regular settings menu, which is suitable for most users whose phones are turned on and running steadily, and you don't need a Root right or a computer connection.
To start, unlock your device's screen and go to the main app menu. Find the gear icon, which is the Settings section. Inside the menu, scroll down to Additional Features (some versions of MIUI may call it Advanced Settings), and that's where the switch is hidden.
Find the Quick Boot line and turn the slider to "Off." The system can warn you that the device will turn on longer. Confirm the action. After that, it is recommended to completely turn off and turn on the phone so that the changes take effect.
☑️ Checking the Fast Boot shutdown
It is important to note that some global firmware versions may have slightly different paths. If you don't find a paragraph in "Additional Features", try searching by settings. Type the word "Download" or "Boot" into the search box, and the system will highlight the desired parameter.
⚠️ Note: After Fast Boot is turned off, it may take much longer than usual to turn the phone on for the first time, which is normal, as the system needs to reinitiate all services without using cached hibernation data.
Alternative methods: Engineering menu and ADB
If the standard path is hidden or the settings menu is not available due to software errors, you can use more advanced methods, one of which is the use of the engineering menu, although access to it is often limited on modern versions of HyperOS and MIUI.
A more reliable way for experienced users is to use debugging by USB utility ADB (Android Debug Bridge. This method allows you to send commands directly to the system without going through the GUI. USB-cable.
First, activate Developer Mode. Go to Settings → About Phone and quickly click on MIUI seven times. Then, in Additional → For Developers, enable USB Debugging. Connect your phone to your PC and execute a command via the terminal:
adb shell settings put global boot_mode 0This command is forced to change the boot mode setting, but be careful: misuse ADB-If you're not sure what you're doing, you'd better limit yourself to standard methods or contact the service.
What if the ADB can’t see the phone?
The problem of cyclic reboot and login to Recovery
The situation when the phone is endlessly restarted or immediately after turning on falls into the Recovery menu (usually a black screen with the Mi logo and a selection of languages), is a classic manifestation of the Fast Boot conflict. In this mode, the phone cannot complete the shutdown cycle, since the fast boot function blocks the normal completion of the kernel processes.
If you're on the Recovery menu, don't panic. Your data is probably intact. The main task is to get out of here. Most of the time, just select Reboot and then Reboot to System. However, if the Fast Boot is active, the phone can go back to that menu.
To break this circle, you have to force the device to turn off. Press the power button and hold it for 10-15 seconds until the screen goes out completely. Immediately after that, without releasing the Volume Up volume button, press the power button. When the Mi logo appears, release the power button, but keep the volume up until you enter Fastboot mode.
| Action. | Button combination | The result |
|---|---|---|
| Forced reset | Hold the Power 10-15 seconds | Totally switching off the screen |
| Entrance to Fastboot | Volume Up + Power | Firmware mode (Hare) |
| Entrance to Recovery | Volume Up + Power (after vibration) | Recovery menu |
| A normal start. | Only Power. | Download Android |
Once you're in Fastboot mode, use the volume buttons for navigation and the power button for selection. Find the Power off and turn off the phone. Then try turning it on in the usual way. If the problem was a software failure of Fast Boot, the device should boot normally.
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If your phone is constantly going into Recovery, try pressing the volume button "Down" before turning on, which prevents the system from automatically entering recovery mode and allows the system to boot.
Resetting settings as a radical solution
If you can’t shut down the function through the menu because of the constant freezes, and reboots don’t help, the last measure is Wipe Data, which will completely clean up the internal memory of the smartphone, returning it to a factory state, so it should only be resorted to if absolutely necessary.
Before starting the procedure, make sure you remember the password from your Mi Account, otherwise, after a reset, the phone may lock (FRP protection).
To perform the discharge:
- 🗑️ Complete Cleanup: Remove all apps, photos, contacts and settings.
- 🔒 Security: Reset your screen lock passwords if you forget them.
- ⚙️ Clean System: Remove all software errors and conflicts that caused the boot issues.
From the Recovery menu, select the language (English), then go to Wipe Data and confirm the action (Wipe All Data). The process takes a few minutes. Once completed, select Reboot. The phone will turn on as new, and the Fast Boot function will be disabled by default.
⚠️ Warning: Wipe Data is irreversible. It is almost impossible to recover deleted files without prior backup. Make sure you have no other option before confirming the reset.
Preventing and optimizing Xiaomi
After successfully resolving the fast boot issue, a number of preventive actions are recommended to ensure Xiaomi's future performance is stable.System optimization helps avoid the accumulation of errors that could lead to cyclical reboots again.
First, check for system updates. Developers often release patches that fix memory and power management errors. Go to Settings → About your phone and click on the MIUI version. If a new version is available, install it.
Also worth noting is overcrowded memory: If the space is less than 10%, the system may not work properly; delete unnecessary files or transfer them to your computer; use the built-in Security app to clean the cache and optimize memory.
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Disabling Fast Boot is not only a solution to the problem with reboots, but also a way to extend the battery life, since micro-charge-discharge cycles are excluded when turned off.
Regularly restarting the device (at least once a week) also helps clear RAM from "junk." Don't keep the phone on for months, allowing the system to accumulate errors in processes.