Users often look for a way to demolish a system on Xiaomi when a device is unstable, infected with viruses or requires radical cleaning before selling. Complete removal of the operating system or its components is a last resort, which returns the smartphone to a factory state or allows you to install a clean version of Android without shells.
The procedure requires careful preparation, as it irreversibly destroys all data. Xiaomi owner needs to understand the difference between a normal reset and deep cleaning of memory sections through the engineering menu. We will look at safe methods for uninstallation of system components and flashing.
Before you take action, make sure you are aware of the risks: Incorrectly deleting system files can turn a phone into a brick. However, if you follow the algorithm, you can effectively clean the device of debris, advertising or operator restrictions.
Preparing the device for system removal
The first step before demolishing the system on Xiaomi is to create a full backup. Standard MIUI tools allow you to save contacts, messages and settings to the Mi Cloud or local drive. Ignoring this step will lead to irretrievable loss of photos and documents.
It is also critical to charge the smartphone battery to a minimum of 60-70%. The process of flashing or deep reset can take anywhere from 10 minutes to an hour, and a sudden power outage in the middle of recording data in flash memory can irreversibly damage the bootloader. Use the original cable and power supply to connect.
Don’t forget to download the necessary ADB and Fastboot drivers to your computer in advance, as well as the firmware file itself, if you plan to completely replace the software. For models with a blocked bootloader, you will need to pre-unlock through the manufacturer’s official website, which can take up to 168 hours of waiting.
Check for your Mi Account and password, and once reset, the system will require authorization from an account that was previously linked to the device, which is a theft protection that you can't get around without the original data.
Full Reset Method through Recovery Mode
The most affordable way to demolish user data and system settings is to use the built-in Recovery mode, which requires no connection to a PC and works even if the operating system is damaged but the phone turns on, and to log in, you need to turn off your smartphone and pinch the combination of power and volume buttons.
In the Recovery menu, the navigation is done with volume buttons, and the choice is confirmed by the power button. You will need to find the Wipe Data item, and then select Wipe All Data. The system will warn you to delete all files and require confirmation, often by holding a button or entering a code.
Once the data and cache partitions are cleaned, the phone will automatically restart. The first download can take longer than usual, as the system re-forms the file structure, which is the standard behavior for Android after deep cleaning.
☑️ Checklist before reset
Cleaning through the Wipe & Reset menu in settings
If the operating system is stable and you can get into the menu, use the regular reset tool. Go to Settings → About Phone → Settings Reset. Here you can get the "Erase all data" option, which actually demolishes the user part of the system, returning it to the factory state.
This method is less aggressive than Recovery, as it does not affect the system partition unless you select the option of formatting internal memory (which is not available on all models), it is ideal for preparing a device for sale or fixing software failures of applications.
Importantly, before the process starts, the system will require you to unlock the screen and enter the password from the Mi Account, which prevents the stolen device from being remotely reset by an attacker, and once confirmed, the deletion process will begin, which will end in a reboot.
⚠️ Note: If encryption is enabled on the device, the reset process can take a considerable time. Do not interrupt it, even if the screen is out - the process of cryptographic erasure of the keys is underway.
Using the Mi Flash Tool for full flashing
For those who want to demolish the system on Xiaomi completely, including system partitions, the indispensable tool is the Mi Flash Tool. This utility for PC allows you to write the firmware image clean, ignoring the state of the current OS. This is the only way to restore the phone after serious failures of the bootloader.
The process begins with the smartphone switching to Fastboot mode, which is to connect the device to the computer, holding the volume button, and the screen will show a picture of a hare in a hat repairing an android, and in the program on the PC you need to choose the path to the unpacked firmware and clean all mode.
Clean All mode formats internal memory completely, removing all partitions, including userdata and cache, which ensures that there are no traces of the old system or junk files left in memory. However, using Clean All and Lock mode requires that the firmware version be newer or equal to the installed one, otherwise the phone will lock.
What to do if the Mi Flash Tool is in error?
Removing system applications and advertising
Often, the phrase “demolition” users mean getting rid of built-in garbage and advertising. MIUI. Complete removal of system applications (bloatware) is possible only with the rights of the superuser Root or through debugging. USB using ADB-team.
Without Root rights, you can use the freeze or delete method through ADB Shizuku. To do this, the developer's settings activate debugging over USB. Then the computer sends commands like adb shell pm uninstall -k --user 0 name.packet, which allows you to hide the system components for the current user, effectively removing them from the visible part of the system.
However, be careful: removing critical system packages such as Security Center or MIUI Home can lead to a cyclical reboot.
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Use Universal Android Debloater to safely remove system debris, it has a database of secure packets to remove and alerts you to critical components.
Comparison of cleaning and flashing methods
The choice of method depends on the ultimate goal: if you just want to sell the phone, a regular reset is enough. If the system is killed by viruses or errors, you need Recovery. To completely replace the software or downgrade version of Android, you need Fastboot and Mi Flash.
Below is a table that helps to determine the method of influence on the system, depending on the situation and the level of user training.
| Method | Difficulty | Data security | A PC is needed. | The risk of blocking |
|---|---|---|---|---|
| Wipe & Reset (Menu) | Low. | No (only backup) | No. | Minimum |
| Recovery Mode | Medium | No. | No. | Low. |
| Mi Flash (Clean All) | Tall. | No. | Yes. | Medium. |
| ADB Uninstall | Tall. | Yes (partially) | Yes. | High-pitched |
Using third-party utilities to "demolition" systems outside the Xiaomi ecosystem can lead to a loss of warranty.Official tools like Mi Flash and Recovery are the safe choice for most scenarios.
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The safest way to completely clean your device is to use Fastboot mode with the Mi Flash Tool utility and select the Clean All option, but that requires an unlocked bootloader.
Possible problems and solutions
There are often situations where the phone, after reset, requires a password from the previous Google or Mi Account (FRP protection), which is officially impossible to get around without the original data, this is a security measure.
Another common problem is “bootloop” (cyclic reboot) after trying to delete system files through a system system. ADB. In this case, only a full flashing through the Fastboot will help. If the phone is not determined by the computer, try replacing it. USB-cable or port, and install drivers manually through Device Manager.
⚠️ Note: When you flash the global version to Chinese (or vice versa), you may get an “Anti-rollback check failed” error, which means that the bootloader version does not allow you to roll back to the older version of the software, and the process will stop to avoid breakage.
If the device stopped responding to the buttons and did not turn on, try to press the power button for 15-20 seconds to force the restart. In the worst case, you will need to contact a service center to reprogram the memory chip.