How to set a password to turn off the phone Xiaomi

Owning a modern smartphone involves storing a huge amount of sensitive information, from banking apps to personal photos. For Xiaomi users with MIUI shells or the new HyperOS, it is critical to understand that standard screen locking does not always protect against unauthorized device shutdown. Attackers, once they have a gadget, can try to turn it off to break communication with geolocation servers or avoid remote locking.

Installing such protection requires several actions in system settings, which may vary depending on the version of the operating system. It is important to note that without activating this option, a prolonged press on the power button often leads to an immediate appearance of the menu with the off button, which creates a vulnerability. In this article, we will discuss in detail the algorithm of actions that will help protect your device from malicious shutdown.

Note that the menu interface may vary, but the logic of the security system remains the same for the Xiaomi ecosystem. We will look at not only standard methods, but also the nuances associated with different versions of firmware.

Why do I need to lock the power button?

The main purpose of setting a password to turn off is to prevent data theft and the device itself. When a smartphone falls into the wrong hands, the attacker's first instinct is to try to disable the device so that it does not transmit geo-position or can not be blocked remotely through the Find My Device service. If the switch off is a password, then even with a locked screen, pressing the button "Switch off" or "Reset" will not work without entering PIN-code-key.

It also protects against random action in your pocket or bag. Although modern touchscreens have false-press protection, long-term pressing of the physical or touch power button can still activate the emergency call or turn off menu, blocking this action adds another layer of control over physical access to the energy management interface.

⚠️ Note: Turning off a password does not replace encryption. If the device is already unlocked, an attacker may have access to files until the screen is locked.

Also worth mentioning is the Pocket Mode feature, which often works in conjunction with button protection, which prevents accidental taps when the proximity sensor is closed with a cloth, but it is the software lock in the security menu that guarantees that without authorization, the power menu will not open.

Security settings in MIUI 12, 13 and 14

In current versions of the MIUI shell, the activation process is quite logical, but hidden in a specific section of security settings. The user needs to go to the main settings menu and find the password and security section. This is where all the keys to controlling access to smartphone functions are concentrated. In some versions of the firmware, this item can be called simply "Security" or be entered into a separate application.

Once you enter the section, select Privacy (or Privacy Protection) and the switch that locks the screen when the screen is off is hidden inside the menu, and activating this option will require your current password to confirm that the screen is unlocked, so that an outsider cannot turn on protection if they have already accessed the phone but do not know the code.

The interface may vary slightly depending on the regional version of the firmware (Global, China, EEA). In global versions, the path most often looks like Settings → Passwords and security → Privacy → Lock when the screen is off. In Chinese versions, the menu can be more detailed and contain additional control points.

Once the feature is enabled, the system will require you to enter a password, pattern lock or fingerprint whenever you try to turn off or reboot the screen if the screen is locked at that point, creating a strong barrier to unauthorized activity.

Features of blocking in HyperOS

With the release of the new HyperOS operating system, which gradually replaces MIUI on Xiaomi, Redmi and Poco devices, the menu structure has changed. The security logic has remained the same, but the location of the switches has shifted. Now the feature is often in the Device Security section or integrated into the general locking settings. Users of new flagships and updated models should look for a item with a name containing the word "Stop" or "Power off" in the context of protection.

HyperOS also improved the system’s response to bypassing, and if there were vulnerabilities that allowed the reboot menu to be triggered at specific intervals or combinations of buttons, the new system now closed the loopholes, and the system layer now requires mandatory biometric or password authorization before executing the shutdown command.

Interestingly, the new shell has a more flexible notification setting, so when you try to turn off without a password, the system can not only request a code, but also silently send a notification to the owner (if you have a network connection) that someone is trying to turn off the device, which is part of Xiaomi's smart security ecosystem.

Owners of HyperOS devices are also advised to check the settings of the Xiaomi Account, as it is a key element in the chain of protection against theft in the new ecosystem.

Xiaomi Account and Find My Device

The password to turn off the phone is just one layer of protection, and the foundation of security is to link the device to a Xiaomi account and enable Find My Device. Without an activated account, setting a turn-off password may not even be possible on some firmware versions, as the system requires identification of the owner. SIM-map.

The device search service runs in the background and takes precedence over most user settings. If a thief tries to turn off the phone, the system will first request a password. If he miraculously manages to do so (for example, waiting for the battery to drain), the next time he turns on, the device will request a password from the Xiaomi account, without which the phone will become a “brick”, a phenomenon known as Activation Lock.

It is important to check the sync status regularly. Sometimes it happens that the user changes the password from the account on the computer, but the smartphone remains with old authorization tokens, which can lead to conflicts when trying to remotely lock.

The combined use of all these tools creates an almost insurmountable barrier for attackers, and a single defense measure is often insufficient in today’s environment.

Problems with the power button and their solution

Sometimes users are faced with a situation where the power button behaves incorrectly: the phone turns off on its own or, conversely, the menu is not called even with a password. This can be due to software failures, and physical wear of the button. In case of software errors, cleaning the system cache or resetting the settings to the factory (pre-made backup).

Also worth mentioning is the Emergency Call feature, which, even with a turn-off password set, has access to emergency services on the locked screen (112, 911, etc.), which is a requirement of most countries' laws and cannot be circumvented by software methods, but you cannot go from the emergency call menu to the main menu of the phone.

⚠️ Note: If the power button is physically faulty and constantly "presses" the signal, the phone can reboot cyclically.

You can use special engineering tests to diagnose a button problem. In the Phone app, type ##64663## (not working on all models), select Key or Button and check the response of the power button. If the test shows double presses or no reaction, the problem is hardware.

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Use the virtual power button in the special features menu if the physical button is broken, which allows you to control the on/off screen through the tap over the display.

Alternative methods of data protection

If for some reason the standard shutdown function is not suitable or available, there are alternative ways to protect yourself, one of which is to use third-party locker applications that can intercept system events, but this method is less reliable, since a skilled user can complete the process through Task Manager or Safe Mode.

Another effective method is to set up automatic actions on a schedule, so you can set the phone to automatically turn on and off at a certain time, for example, if the phone turns off at night and turns on in the morning, then a thief who stole it in the afternoon can't just turn it off if he sets his own rules, but this is difficult to implement for real-time protection against theft.

The most reliable "old-fashioned" method is the use of covers with a lid that covers the power button. Mechanical protection is sometimes more effective than software protection, since it eliminates accidental pressing in the bag and makes it difficult to access the button when trying to quickly remove the phone.

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The combination of a shutdown password, Mi Account binding and physical protection (case) ensures the maximum level of security for your Xiaomi device.

Frequently Asked Questions (FAQ)