How to Reset Xiaomi Mi 9: A Complete Recovery Guide

The Xiaomi Mi 9, launched in 2019, is still popular thanks to its powerful processor and high-quality display. However, over time, the MIUI operating system can accumulate software errors that lead to unstable work of the gadget. Users often face situations when hardware acceleration stops responding, or the interface begins to slow down even on simple tasks.

The factory-back procedure removes all user information, including contacts, photos and installed applications. This action must be performed with the utmost care, saving important files to the cloud or to an external medium. Hard Reset helps not only to correct system errors, but also significantly improve the speed of the device before selling or transferring to another owner.

In this guide, we will look at all the available methods for cleaning up the memory of the Mi 9, including standard Android settings and Recovery mode. You will learn how to properly prepare your phone for the procedure to avoid losing a Google account or blocking Mi Account.

Xiaomi Mi 9 Preparation for Full Reset

Before you start taking drastic measures, you need to make sure that the device is ready to overwrite system partitions. The first and most critical step is to back up all the data. The built-in Xiaomi Cloud or Google services allow you to save contacts, notes and calendar, but personal photos and videos are better copied manually to your computer.

Pay attention to the battery level. The data partition formatting process requires stable power, and suddenly shutting down the device can damage the bootloader. Charge the battery to at least 60-70% before starting the procedure. If the battery is worn out and holds the charge poorly, connect the phone to the original charger.

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Before resetting, be sure to remove SIM-MicroSD card and memory card, if installed, to avoid accidental formatting of external media.

It’s also important to know the credentials that were used on the device before. Once reset, Android security will require you to enter the username and password from the Google account or Mi Account that was tied to the phone. If you forget this data, it will be extremely difficult to unlock the Xiaomi Mi 9 without contacting the service center.

• 🔋 Charge the device to at least 60% for stable operation.
• 📁 Backup important files to your PC or cloud.
• 🔑 Remember the passwords from Mi Account and Google Account.
• 📴 Turn off data transmission by USB And debugging if they're active.

Reset via the standard MIUI settings menu

The safest and easiest way to get the Xiaomi Mi 9 back to its original state is to use the built-in operating system functionality. This method is suitable for cases when the phone turns on, the screen responds to touch, and you have access to the desktop. The MIUI shell algorithm may vary slightly depending on the firmware version, but the overall logic remains the same.

To start, open the Settings app and scroll down to the bottom. You're interested in the About phone item. Inside this section, you'll need to find the Reset button. The system will alert you that all data will be deleted and suggest you choose the type of cleanup.

From the menu that opens, select the option “Erase all data.” The device will request confirmation of the action, often requiring input of a pattern lock or unlock pin. Once confirmed, the preparation process will begin, which can take several minutes, after which the phone will restart and begin cleaning.

⚠️ Note: If the device activates the Find Device feature, the system may require you to enter a password from your Mi Account before starting a reset to confirm your identity.

It's important to not interrupt the process, even if the screen is out or the phone is vibrating. System files are overwritten in the background, and any interference can lead to a software failure. Wait for the welcome screen with the choice of language to appear.

Hard Reset via Recovery Mode (buttons)

If the operating system is not booting, the screen is locked or the sensor is not responding, the only way out is to use Recovery Recovery mode. This method allows you to perform Hard Reset at the bootloader level, bypassing the Android interface. To enter this mode on the Xiaomi Mi 9, a combination of physical buttons is used.

Turn off the smartphone completely. Then simultaneously press the volume button and the power button. Hold them until the Mi logo appears, then release the power button, while continuing to hold the volume. In a few seconds, you will see the main Recovery menu.

In Restore mode, the touch screen is not working. Navigation through the menu is done with volume buttons (up/down), and the choice of item is confirmed by the power button. You need to find the Wipe Data item and select it. Next, you need to confirm the action by selecting Wipe All Data.

After cleaning is completed, which will take a few seconds, the system will prompt you to return to the main menu (Back to Main Menu) or reboot (Reboot). 5-7 minute.

Resetting a forgotten password and locking the screen

A common reason for resorting to resetting is a forgotten pattern lock or pin. In modern versions of Android and MIUI, security comes first, so you can't just bypass protection. Recovery is the only regular way to unlock access to the system, but it involves total data loss.

If you run Wipe Data through Recovery, the phone will reboot, but if you have the Internet and Google account on your device before the reset, FRP (Factory Reset Protection) protection may work, the system will require you to enter the data of a Google account that was synced to the phone earlier, this is anti-theft protection, and you can't get around it legally without a password.

In the case of Xiaomi, the situation is similar: if the Find Device function was active, you will need to enter a password from the Mi Account after the reset. Trying to find a password by repeatedly entering can lead to a temporary locking of the account by the security server, so it is important to remember exactly the credentials that were used before the lock.

• 🔒 Reset will remove the pattern lock, but will not remove the binding of accounts.
• ☁️ FRP Protection requires you to enter a Google account after the first activation.
• 📱 Mi Account Lock requires you to enter a password from the Xiaomi cloud.
• ⚠️ Without passwords, the device will remain a “brick” with an activation screen.

Remote reset via Find Device

There is an alternative way to reset the Xiaomi Mi 9 if the phone itself is lost, but it has Internet and geolocation enabled. Xiaomi Cloud provides a remote device management feature, you need to go to the official website of the cloud service from a computer or another smartphone.

Sign in with the same Mi Account that was used by the nano or locked device. From your device list, select Mi 9. From the available feature menu, find the "Erase Data" or "Wipe Device" button. Once you confirm the command, the phone, if it is online, will receive a signal for a full reset.

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Remote reset is only effective when the phone is actively connected to the mobile Internet or Wi-Fi, otherwise the command will be executed the next time the device appears on the network.

This method is also useful if you sold your phone and forgot to log out, or if the touch screen is completely out of order, but the system is working. However, it is worth considering that after a remote reset, the phone can be blocked for the new owner if it was not previously untied from the account in the settings.

Possible problems and solutions

During the reset process, Xiaomi Mi 9 users may encounter a number of technical difficulties. One common problem is hanging on the Mi logo after the procedure is completed, which may indicate that system files are damaged or the firmware has failed to update before reset.

If your phone is stuck in a bootloop, try re-entering Recovery mode and resetting it again, sometimes with Wipe Cache cleaning if this option is available in your recovery version, although newer versions of MIUI often combine it with a full cleanup.

⚠️ Warning: If after reset, the phone requires activation but does not connect to Wi-Fi or writes a server error, check the correct date and time.In Recovery mode, time can reset, which causes security certificate errors.

In rare cases, especially on devices with unlocked bootloader or custom firmware, a standard reset may not work correctly. In such a situation, you may need to flash the device through the computer using the Mi Flash Tool utility and the Fastboot image.

If neither method works and the phone doesn’t respond to buttons or PCs, there is a high probability of hardware malfunction. Problems with the memory controller or power buttons on the Mi 9 are common, especially if the device has been subjected to falls or moisture, in which case a diagnosis is necessary in the service center.

Frequently Asked Questions (FAQ)