Situations when it is necessary to completely erase all data from the device Xiaomi or Redmiarise regularly. Most often this is due to planned sales of the gadget on the secondary market, transferring the phone to relatives, or the need to eliminate critical software glitches. This process requires not just pressing a couple of buttons, but an understanding of exactly how the file system works Android and the manufacturer's security protocols.
Incorrect execution of the procedure may lead to the new owner not being able to activate the device due to account blocking Google or Mi Account. On the other hand, superficial cleaning leaves traces of your personal information, which theoretically can be restored with specialized software. That is why it is important to consider all aspects of preparing and performing a factory reset.
In this material we will analyze in detail the algorithms of actions for different versions of the shell MIUI and HyperOS. You will learn how to properly prepare a smartphone for a “zero reset,” what pitfalls exist when removing FRP locks, and why simply deleting files is not enough to guarantee confidentiality.
Preparing a smartphone for a full reset
Before initiating the erasing process, it is critical to perform a number of preparatory steps. This will save your important contacts, photos and access from irretrievable loss. Many users make the mistake of relying only on cloud services, which may not be completely synchronized.
Back up all important data. To do this, you can use the built-in application Mi Cloud or third-party solutions. Pay special attention to messengers: the history of correspondence in WhatsApp i Telegram is often stored locally and does not end up in the general copy of the system without explicit indication.
Make sure that the battery charge level is at least 50-60%. The process of formatting internal memory creates a high load on the power controller. If the phone turns off while writing system partitions, this can damage the bootloader and turn the device into a brick.
⚠️ Attention: If your device has data encryption enabled (which is standard for modern versions of Android), make sure you remember the screen unlock password. After the reset, the system may request it to confirm the owner's identity before final cleaning.
Before resetting, remove the microSD memory card, if installed. Formatting the internal memory of the phone does not affect the SD card, but accidentally selecting the “Clear all” option in some recovery may also affect external drives.
Disable all active security locks associated with accounts. This applies to both account Googleand Mi Account. If this is not done, the anti-theft mechanism FRP (Factory Reset Protection) will work, and the phone will ask for a password from the old account the first time it is set up by a new user.
Reset via the system settings menu
The most secure and recommended cleaning method is to use the standard operating system interface. This method ensures that all processes are closed correctly and memory partitions are re-allocated correctly. The algorithm of actions may differ slightly depending on the firmware version.
Go to the main device settings menu. Depending on the model and version MIUI, the required item may be in the section Advanced settings or directly in the list of main parameters. Find the category responsible for restoring the factory state.
The system will prompt you to select the type of reset. Typically, the options available are “Reset settings” (without deleting files) and “Erase all data.” We need a second option. When selected, the system will show a list of what will be deleted: photos, music, applications and accounts.
☑️ Check before resetting in settings
After confirming the action, the phone will ask you to enter a security code, pattern key or fingerprint. This is the final barrier to prevent accidental reset by attackers. After entering the data, the reboot and cleaning process will begin, which may take from 5 to 15 minutes.
During the procedure, the screen may go off and on several times. Do not attempt to interrupt this process by pressing buttons. Modern smartphones Redmi will automatically complete the installation of a clean system and offer an initial language and region setup screen.
Resetting through settings is the only method that correctly removes account linking before rebooting, minimizing the risk of triggering an FRP lock for the next owner.
Using Recovery mode for cleaning
If the operating system does not boot due to a virus, firmware failure or forgotten pattern key, the Recoverymode is used. This is a special recovery environment recorded in a protected memory section that works independently of the main Android.
To enter this mode, you must completely turn off your smartphone. Then hold down the key combination: usually this is the volume up button Volume Up and the power button Power. Hold them until the logo appears Mi or Redmi, then release the power button while continuing to hold the volume.
In the recovery menu, navigation is carried out using the volume buttons (up and down), and the selection is confirmed with the power button. You need to find the item Wipe Data. In new versions of recovery, the interface can be touch-sensitive, which simplifies the task.
| Menu item | Function | Impact on data |
|---|---|---|
| Reboot | Reboot the system | Data is saved |
| Wipe Data | Full cleaning | Deletes everything (photos, accounts, OS) |
| Connect with MIAssistant | Firmware mode via PC | Requires cable connection |
| Safe Mode | Safe mode | Loading without third-party applications |
Select the option Wipe All Data (Erase all data). The system will ask for confirmation, often requiring you to press the confirm button several times or enter a code if you have previously set one. After successful completion, a message will appear Data wiped successfully.
⚠️ Attention: Resetting via Recovery does not always correctly remove accounts from the processor’s security memory. There is a high probability that when you turn on the phone, it will require you to enter a password from the Googleaccount that was synchronized earlier.
What to do if Recovery asks for a password?
In new versions of MIUI (12, 13, 14 and HyperOS) entering recovery mode and performing a reset may require you to enter your screen unlock password. This is done to protect against theft. If you have forgotten your password, a button reset is not possible without unlocking the bootloader or using service tools.
FRP protection and account deletion
Factory Reset Protection (Factory Reset Protection) is a security standard in the Android ecosystem. It links the device to the owner's account. The purpose of the mechanism is to make the stolen phone useless to an attacker even after full formatting. FRP (Factory Reset Protection) is a security standard in the Android ecosystem. It links the device to the owner's account. The purpose of the mechanism is to make a stolen phone useless to an attacker even after full formatting.
If you plan to sell the phone, you must log out of all accounts before starting the reset procedure. Go to settings, section Accounts and synchronization. Sequentially select Google, Mi Account and other services by clicking the “Delete account” or “Exit” button.
Particular attention should be paid to the account Xiaomi. If the Find My Device function was active, the manufacturer's servers will remember the device's unique identifier (IMEI). When connecting to Wi-Fi after a reset, the phone will contact the server and block activation without entering the password for this account.
If you purchase a used device with the blocking enabled, you can legally unlock it only by presenting the purchase receipt to an authorized service center. Bypassing FRP using software methods is often a temporary solution and can be closed by a security update.
Remember that deleting an account through the settings menu is not the same as changing the password on the website. Authorization data must be deleted specifically from the phone’s local storage so that the system considers the device “untied.”
Guaranteed destruction of information
A standard reset deletes the file table, making the data invisible to the system, but the bits of information themselves can remain on the memory chip until they are overwritten by new data. For increased privacy, it is recommended to perform the “garbage filling” procedure.
Immediately after performing a factory reset, set up your phone as new without logging into your accounts. Fill the internal memory with meaningless files: download several heavy movies, record videos in maximum quality, or copy large archives.
When the free space approaches zero, perform the reset procedure again. In this case, the new files will overwrite the physical memory cells where your personal photos and documents were previously stored, making recovery almost impossible even for forensic scientists.
To speed up the process of filling up the memory, you can use the camera application in 4K video recording mode. It will quickly create large files, occupying gigabytes in a matter of minutes.
This method is especially relevant for devices that stored sensitive commercial information or personal data of high importance. On modern phones with encryption by default, this step is often considered unnecessary, but for the paranoid it will give additional peace of mind.
Possible problems and their solutions
Sometimes the data erasing process is interrupted or ends with an error. The most common reason is damage to system files or the presence of errors in the partition cache. In this case, the phone may get stuck on the logo when booting (bootloop).
If the device reboots cyclically, try entering Recovery mode and running the command Wipe Cache (clear cache) without affecting user data. If this does not help, you will need to completely flash the device via a computer using the utility Mi Flash Tool.
Another common problem is an error in account verification after a reset. If your phone says “Invalid username or password,” make sure that you are entering data from the account that was last synced on the device. Users often confuse the main and backup email.
⚠️ Attention: MIUI and HyperOS interfaces are regularly updated. The location of menu items and names of functions may differ depending on the software version. If you do not find the options described, check the official manual for your specific model in the Services application or on the manufacturer's website.
In rare cases, the problem lies in a hardware failure of the flash memory. If the reset is constantly interrupted at the same percentage (for example, at 45% or 78%), this may indicate the presence of “broken” memory blocks, which requires contacting a service center.
Frequently asked questions (FAQ)
Will the operating system be deleted when resetting the settings?
No, the operating system Android and shell MIUI/HyperOS are not removed. The reset affects only the user memory partition (/data), returning system settings and applications to their out-of-the-box state. The firmware remains the version that was installed at the time of the reset.
Is it possible to recover data after a complete reset?
Without special skills and equipment - practically not. Using standard apps for data recovery on a PC, it is impossible to extract information after formatting on modern Android smartphones with encryption. However, theoretically, if you have expensive laboratory equipment and if the data has not been rewritten, fragments of information can be read.
What to do if the phone asks for a password for the Mi Account after purchasing a used one?
This means that the previous owner did not log out of his account. Contact the seller and ask them to remotely remove the device from the trusted list in your Mi Cloud settings. If communication is impossible, you can officially unlock the phone only at a service center with a receipt of purchase.
Is the Android version reset when returning to factory settings?
No, the Android version does not roll back down. If you updated your phone from Android 11 to Android 13, then after the reset it will remain Android 13. Rolling back to an older version of the system is only possible through a complete flashing via a computer.
Will a reset remove a virus or Trojan from the phone?
In 99% of cases, yes. Since malware is usually installed in the user's application partition, formatting this partition will destroy the virus. The exception is rare cases of infection of the system partition, which requires flashing the device.