How to erase data from Xiaomi phone: complete reset and cleanup

Selling a smartphone, handing it over to relatives, or fixing critical software failures are just a few of the scenarios that require a complete cleanup of the device. Owners of Xiaomi, Redmi, and Poco gadgets need to understand that simply deleting files is not enough to protect personal information. Current data recovery techniques allow photos and correspondence to be retrieved even after formatting, if the reset procedure is not performed correctly.

The process of deleting information on devices of this brand has its own features associated with the shell of MIUI and HyperOS. It is important not only to return the phone to the factory settings, but also to unplug cloud services to avoid blocking the activation of the new owner. Below we will discuss in detail all available methods, from the standard menu to the use of engineering tools.

Before you start taking any drastic measures, you should evaluate the current state of the device and choose the most appropriate method. If the phone is turned on and running steadily, it is better to use a software reset via settings. In cases where the device is “hanging” or forgotten the pattern lock, more complex manipulations through Recovery mode will be required.

Preparing the device for complete removal of information

The initial phase is critical to maintaining access to your digital assets. Before you start erasing, you need to create a full backup of all important data. Xiaomi smartphones use the built-in Security app or the Mi Cloud service, copy contacts, call history, SMS and notes, as after reset they will be lost irretrievably.

Special attention should be paid to the Google account and Mi Account. If you just reset without logging out, FRP (Factory Reset Protection) protection will work, which means that the new owner will not be able to activate the phone without entering your password.

Remember to remove the MicroSD card if installed. Although the system will suggest choosing whether to format it, physical extraction ensures that your personal files on the external media remain intact, and it is also recommended to disable the Find Device feature in the security settings to avoid potential conflicts when reactivated.

⚠️ Warning: Make sure you remember passwords from your accounts. Once cleaned, it can be extremely difficult to restore access to them without a linked phone number or backup email.

Standard reset via the settings menu

The safest and easiest way to clean up Xiaomi is to use the standard operating system functionality, which is suitable for most users whose devices are in working order. First, go to the main menu and find Settings. Depending on the version of the MIUI shell, the path may be slightly different, but the logic remains the same.

You need to find the About phone or Advanced Settings section, and that's where the full reset function is hidden, the system will warn you several times that all data will be destroyed, and that's the standard procedure for protecting against random user actions, and if the phone requests an unlock pin or password from your account, enter it to confirm the operation.

Once confirmed, the phone will restart and begin the cleanup process, which can take 5 to 15 minutes depending on the amount of internal memory and the number of files. Don't interrupt this process and try to turn off the device. Upon completion, the smartphone will turn on as a new one, suggesting you choose a language and connect to Wi-Fi.

Some firmware versions have an optional option called Clear All Data, which includes formatting internal memory. Make sure that this tick is set if your goal is maximum privacy. Simply removing applications without formatting can leave traces of your activity in system logs.

Cleaning through Recovery (Hard Reset)

If the device doesn't turn on, hangs on the logo, or you forget the unlock password, you'll have to use Recovery Mode. It's a low-level environment that allows you to control the system bypassing the main interface. To enter this mode on a switched-off phone, Xiaomi needs to simultaneously press the power buttons and increase the volume.

Hold the combination until the Mi logo appears, then release the power button, but keep the volume up. You'll see a multi-point menu controlled by volume buttons (up/down) and power button (select). You need Wipe Data.

Within this menu, select the Wipe All Data option. The system will request confirmation again, as this action is irreversible. Once you have cleaned, select Reboot to restart the device in normal mode. This method is guaranteed to delete all user data, including cache and temporary files.

It is worth noting that on new models with Android 11 and above, entering recovery mode may require a charger connection or even a charger. USB-This is done for security reasons, so that attackers can't easily reset the stolen phone. If the menu doesn't respond to pressing, try charging.

Using ADB for Advanced Cleaning

For technically trained users, there is a method of cleaning through the Android Debug Bridge debugging (ADB). This method allows you to erase data even in cases where the touch screen is partially not working, but the system is booting, USB-the cable and installed Xiaomi drivers and ADB tools.

You need to activate the developer mode on the phone, and you need to tap the build number seven times in the About Phone section. Then, in the Developer menu that appears, turn on the USB Debugging option. Connect your smartphone to your PC and allow debugging in the pop-up window on your device screen.

Open the command line on your computer and enter the command to go to recovery mode:

adb reboot recovery

Once you reboot in Recovery mode, you can send a command to Wipe without using volume buttons if they are faulty.

adb shell recovery --wipe_data

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Use the original. USB-Cheap cables often only support charging and do not transmit data, which will lead to a connection error. ADB.

This method is especially useful when the volume buttons on the device are broken, making it impossible to navigate the Recovery menu in the standard way. However, if the phone is completely brick-and-brick and does not respond to ADB commands, this method will not work, and you will need to flash it through Fastboot.

Comparison of data deletion methods

The choice of the method depends on your situation, technical literacy and the state of the gadget itself, and to make it easier for you to navigate, we have prepared a comparative table of the main cleaning methods.

As you can see from the table, a standard reset is enough to sell or transfer a phone quickly.The method using the Mi Flash Tool and Fastboot firmware with the Clean All option is the most radical, since it completely rewrites memory partitions, but it requires more time and skills.

If you're planning to sell a device, you don't have to save time on preparation. Using advanced methods ensures that data won't be recovered even theoretically. For ordinary users, a standard procedure with pre-recording memory is enough.

Filling in memory before reset: is it necessary?

There is a popular belief that before resetting the phone, you need to fill up the garbage files (video, photo) to the point of failure, and then clean it again. It is believed that this helps to overwrite old data and make it impossible to restore it.

The thing is, all modern Xiaomi smartphones use data encryption by default, so when you reset, the encryption key is destroyed, and without that key, the recovered bits of information are just a collection of chaotic digital noise that you can't turn back into photos or documents.

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On modern smartphones with encryption, re-write data before reset does not give a significant increase in security, but can extend the life of the drive.

However, if you hold public information or trade secrets, the method of multiple overwriting (remember -> erase -> fill -> erase) has the right to life.It takes a long time, but provides an additional level of paranoia that can be justified in specific cases.

For a typical user selling an old phone, one high-quality account-exit reset is enough, and modern memory algorithms like eMMC and UFS are effectively managing sectors themselves, making manual overwriting redundant.

Frequent questions and answers