Modern smartphones like the Xiaomi Redmi 9 are complex computing devices that can accumulate software errors over time. Users often face situations where the device starts to run slower, there are accidental freezes or the system stops responding to commands, in which cases the most effective solution is to return to the original state of the software.
The full reset procedure, or so-called Hard Reset, removes all user data and restores factory settings to the system, eliminating the effects of malfunctioning applications, viruses or erroneous settings that may have been introduced during the operation of the gadget.
However, before any manipulation of system files begins, it is necessary to clearly understand the consequences of your actions: reset will completely destroy all personal photos, contacts, messages and installed applications without the possibility of their recovery by standard means.
Preparatory phase and data retention
The first and most important step is to back up information. Redmi 9 owners have access to the Mi Cloud, which allows you to synchronize contacts, notes, voice recordings, and even call schedules. To activate this feature, you need to go to your Mi Account settings and make sure that the switches in front of the right categories are active.
Multimedia files, such as photos and videos, take up a significant amount of memory and require a separate approach. USB-cable and manually copy folders DCIM And Pictures on an external hard drive, and the alternative is to use services like Google Photos, which automatically upload media files to the cloud when you have a Wi-Fi connection.
⚠️ Warning: Make sure your Redmi battery is charged 9 is 50-60% Interrupting the discharge process due to battery discharge can cause damage to system partitions and the inability to load the operating system.
Remember to unplug accounts if you plan to transfer your device to another owner, particularly with regard to your Google account, as FRP (Factory Reset Protection) can lock your phone after a reset, requiring you to enter a password from the previous owner.
Reset via the standard settings menu
The most secure and recommended method of returning to factory parameters is available directly from the operating system MIUI. This method is suitable for most users, since it does not require special knowledge or connection to the computer.
To start, open the Settings app and scroll down to the very bottom of the "About Phone" list, which is where the menu needed to initiate the cleanup process is hidden. In the window that opens, look for the "Reset" button, which is usually located at the bottom of the screen or in the optional menu.
☑️ Pre-reset check
The system will offer two options: "Reset" (without deleting files) and "Erase all data" (full reset). We are interested in the second option. Once the appropriate button is selected, the device will request confirmation by entering a pattern lock, PIN-A code or password set on a lock screen is a security measure to prevent unauthorized persons from accidentally resetting.
Once confirmed, the system will again warn you of the loss of data and request final consent. By clicking the "Next" button and then "Clear All", you start a process that takes from 5 to 15 minutes, the screen can go out and light up several times, and the Redmi logo will be displayed longer than usual - this is the normal behavior of the device.
Using Recovery Mode for Resetting
If the operating system doesn't boot, the smartphone freezes on the logo or the touch screen stops responding, Recovery mode comes to the rescue. It's a special diagnostic interface, recorded in the device's memory regardless of the main system, and logged in with a combination of physical buttons.
To get into the recovery menu on Xiaomi Redmi 9, you need to turn the device off completely. Then simultaneously press the volume button and the power button. Hold them until the Mi logo appears on the screen, after which the power button can be released, continuing to hold the volume key until the Recovery menu appears.
In this mode, the touch screen is not working, so the navigation is done with volume buttons (up and down), and the choice of point is made by a short press of the power button. You need to find the Wipe Data item and select it. Next, the system can request confirmation by selecting Confirm.
⚠️ Note: In Recovery mode, the interface may be in English. Be careful when choosing options so that you do not confuse "Wipe Data" with "Reboot" if your goal is to reset.
After the cleaning process is completed, which also takes a few minutes, the menu will have the status "Data wiped successfully." To exit the mode, select Reboot, then Reboot to System. The phone will reboot and begin the initial setup, as if you just bought it from the store.
Remote reset via Google Find My Device
There are situations where you can't access the device itself, but it's on and connected to the Internet, for example, if you forget your pattern lock and your phone is locked, and Google Find My Device, which allows you to remotely control your smartphone, can help.
To use this method, you will need any other gadget (computer or phone) with Internet access. Go to the official website of the service and log in to the same Google account that was used on the blocked Redmi 9.
In the list of available actions, select the option "Erase Device" (Erase Device), the system will issue a warning that all data will be deleted irrevocably, after confirmation, the command will be sent to the smartphone, and it will perform a full reset to the factory settings automatically.
It's important to note that after this reset, FRP protection will work. When you turn on, the phone will require you to enter a login and password from a Google account that was synced to the device before locking, without this data, you will not be able to use the phone.
Solving problems after system reset
After the procedure is successfully completed and the first boot is completed, users may encounter a number of features of the system behavior: Android operating system and MIUI shell take time to optimize applications and background processes. In the first 15-20 minutes, the phone can heat up and run slower than usual - this is normal.
Sometimes, there is a problem with blocking activation when a device requests a password from a Mi Account or a Google account, which is a security mechanism against theft, and if you forget the password, it must be restored through the websites of service manufacturers, since it is impossible to circumvent this protection by legal methods.
| Problem. | Probable cause | Decision-making |
|---|---|---|
| Cyclical reboot | Firmware error or partition damage | Re-resetting via Recovery or Flashing |
| Google Password Requirement | FRP protection worked. | Entering account data previously used |
| The sensor is not working. | Failure of calibration or driver | Waiting for optimization to end or resetting input settings |
| Quick discharge. | Background indexing of files | Expect 1-2 hours of operation from the charger |
In rare cases, after a reset, some system applications may not work correctly. It is recommended to check for system updates in the settings menu. Often manufacturers release patches that correct bugs that may have appeared after cleaning user data.
What is Fastboot Mode and Is It Needed?
Frequently Asked Questions (FAQ)
Will the phone drop if you remove it? SIM-pre-procedure?
Can I stop the reset if it lasts too long?
Will the Android operating system be removed when reset?
What if my phone asks for a password from a Mi Account I forgot?
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Regular backups in the cloud are the only guaranteed way to avoid losing important data in case of any system failures or the need to completely reset your device.
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Once you reset and reset your phone, don't install all the apps at once, just put the apps you need and watch the system run for a couple of days, which will help you determine if a particular application has caused conflicts before.