Modern smartphones, including the flagship Xiaomi Mi 9 Pro, can slow down over time due to the accumulation of system debris or software failure. If the device started to work unstable, freeze or you just plan to sell the gadget, the most effective solution is to return to the original state.
The process of restoring factory parameters requires care, because the consequences are irreversible. In this guide, we will discuss in detail all the available ways to perform an operation, from the standard settings menu to advanced methods through Recovery Mode. It is important to understand that the right approach to preparing the device minimizes the risk of losing important information.
Before you take action, make sure you understand the scale of the changes ahead.Hard Reset will affect all memory areas designed to store user content.This means that contacts, photos, installed apps and social media logins will be deleted without the ability to easily recover through the shopping cart.
Preparation of the device for complete reset
The first and most critical step is to back up the data, and the owner of the Mi 9 Pro should take care of the safety of their files, as the system will not offer an automatic backup immediately before the cleaning process begins, it is recommended to use cloud services or transfer files to the computer.
Be sure to check the battery level. The data partition formatting process and system files reinstallation can take 10 to 30 minutes. If the device shuts down in the middle of the procedure, it can damage the file system and prevent further booting.
⚠️ Warning: Make sure the battery is at least 60-70% before the procedure, interrupting the power during the formatting of the partition /data It can turn a smartphone into a brick».
It is also important to unplug accounts. If the phone is activated with Google Protection (FRP), after the reset, the system will require you to enter the login and password from the last synchronized account, and a forgotten password can make the device completely unusable.
- 📸 Backup photos and videos in Google Photos or on PC.
- 📞 Export contacts to SIM-Google card.
- 🔑 Write down passwords from important apps and two-factor authentication.
- 💳 Untie your bank cards from Mi Pay and Google Pay.
☑️ Ready to dump
Reset via the standard settings menu
The safest and easiest method available to every user is to use the built-in functionality of the MIUI operating system. This is suitable if the smartphone is turned on, the screen responds to touch, and you can get into the main menu. The algorithm of actions is standardized for most versions of the shell.
To start, open the Settings app and scroll to the bottom of the list. Find About Phone or Advanced Settings, where the reset menu usually hides. In newer versions of MIUI, the path may be slightly different, but the logic remains the same: search for a partition associated with recovery.
Select the option “Reset settings” and click “Erase all data” button. The system will request confirmation of the action, as well as the entry of a pattern lock or PIN-This is a protection against accidental deletion of data by unauthorized persons.
⚠️ Attention: After pressing the "Erase all data" button, the process will start automatically. It will not be possible to interrupt it by pressing the volume or power buttons.
The system will warn you that all files will be deleted. Confirm the action and the device will restart. The Xiaomi logo and progress indicator will appear on the screen, which can hang on a certain percentage - this is normal, the process is writing new system files.
- 📱 Go to Settings. → The phone.
- 🗑️ Select the Reset option.
- 🔘 Press the button to erase all data.
- 🔒 Enter the screen unlock password to confirm.
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If you have a MicroSD card inserted, the system may suggest formatting it before resetting through the settings menu, and be careful when selecting this item so that you don't lose files on the card.
Use of Recovery Mode (Recovery Mode)
If the smartphone does not boot to the desktop, freezes on the logo or the touch screen does not respond, you will need to use Recovery mode.This is a low-level recovery environment built into the device’s memory that allows you to perform system maintenance without loading the main interface.
To enter this mode on the Xiaomi Mi 9 Pro, you need to turn the device off completely. Then you need to pinch the combination of buttons: usually a Volume Up button and a Power button. Hold them simultaneously until the logo appears.
In the Recovery menu, volume buttons (up/down) are used to control the selection and the power button confirms the selection. Find Wipe Data or Clear Data. Some versions may require additional selection of Wipe All Data.
Volume Up + Power = Entry to Recovery
Volume Up/Down = Navigation on the menu
Power = Confirmation of ChoiceAfter selecting a cleanup, the system may request confirmation, often requiring you to press the confirmation button again or enter the code displayed on the screen, which is done to prevent accidental activation of the mode in your pocket.
What to do if you recover in Chinese?
Resetting via computer with ADB
For advanced users who need guarantees of system cleanliness or who restore the device after a failed firmware, the method using a debugging bridge is suitable. ADB. This method requires the presence of a computer, USB-cables and installed drivers.
Before you start, you need to turn on USB debugging mode in the Developer Menu on the smartphone itself. If the menu is hidden, click 7 times on the MIUI Version in the About Phone section. Connect the phone to your PC and allow debugging on the device screen.
Open the command line on your computer in the ADB tool folder. Enter the command to reboot in Recovery: adb reboot recovery. After the reboot, execute the reset command: adb reboot recovery (repeat if necessary) or a specific cleaning command if required by your build.
| ADB Team Team | Description of action | Necessary rights |
|---|---|---|
| adb devices | Checking the device connection | USB debugging |
| adb reboot recovery | Resetting to Recovery Mode | USB debugging |
| adb wipe data | Complete cleaning of the data section | Root / Recovery |
| adb reboot | Normal system reboot | USB debugging |
This method is especially useful when the touch screen is partially down and you can't confirm a reset in the menu.The computer takes over by executing commands directly.
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Using ADB gives you maximum control over the process, but requires pre-configuring drivers and enabling debugging, which is impossible if the phone is already locked.
Solving problems after reset (Bootloop and errors)
After performing the Hard Reset procedure, the first download of the Xiaomi Mi 9 Pro can take significantly longer than usual - up to 10-15 minutes. Many users mistakenly believe that the device is frozen, and reboot it, which can lead to a cyclic restart (bootloop).
If the phone is stuck on the logo for more than 20 minutes, try forcibly restarting it by holding the power button for 10-15 seconds.If the problem persists, it may be that the system cache is damaged or an error occurred when upgrading before reset.
In some cases, re-enter Recovery mode and select Wipe Cache if this option is available in your version are required.Don't confuse this with full data cleanup, as the cache contains temporary files that are not necessary for the kernel to work.
- 🔄 Do not interrupt the first download after reset, even if it seems slow.
- 🔋 Make sure your phone doesn’t run out during initialization.
- 📶 Check the stability of the Wi-Fi connection when you first set up your account.
⚠️ Warning: If after a reset, the device requires an account you don’t remember, this is protection. FRP (Factory Reset Protection: Without the data from this account, you can't legally unlock your phone.