How to return Xiaomi Redmi Note 9 to factory settings: the complete guide

Xiaomi smartphone owners often face the need to completely clean the device of personal data. the Redmi Note 9 model, released in 2020, has so far managed to acquire a large number of applications, cache and system debris, which can slow down the MIUI. Resetting to factory settings is a radical but effective way to return the gadget to its original speed and responsiveness.

The procedure for restoring the initial state is required not only when selling a device, but also before installing custom firmware or critical software errors. It is important to understand that Hard Reset will completely destroy all user files, so you can not ignore the pre-preparation stage. In this article, we will discuss in detail two main methods of resetting: through the system settings menu and through the Recovery mode.

Before you start taking action, make sure you understand the consequences of the operation. All photos, contacts, instant messengers and installed applications will be permanently deleted from internal memory. Backup is the only way to save important data, and you should not neglect this step, even if the memory of the device seems to you not too full.

Redmi Note 9 Prepared for Full Reset

The first and most important step is to create a full backup. The MIUI shell has a powerful backup tool built in that not only saves contacts and messages, but also system settings, call logs and application data. Go to Settings → About Phone → Backup and Restore, select Mobile Device and click Create Backup.

Once you have created a copy on the phone, be sure to transfer it to your computer or cloud storage, as the internal memory will be formatted when you reset, and check the status of your Google and Mi Account account. If you plan to sell the phone or transfer it to another user, you need to unplug the device from your accounts before the procedure begins, so that the new owner does not face an activation lock.

The battery should be sufficiently charged to complete the process. Although the reset itself takes a little time, the system can spend hours setting up and indexing files after the reboot. The optimal charge level is above 50%, but it is better to connect the smartphone to the charger for the duration of the operation.

Method 1: Reset via the system settings menu

This is the easiest and safest method available to every user whose smartphone is working and responsive to touch. To begin, open the Settings app and scroll to the bottom of the list. Find the About section and tap it. In the menu that opens, select Settings Reset, which is usually located at the bottom of the screen.

The system will offer two options: Reset (without deleting files) and Wipe all data. We are interested in the second option, because it returns the Redmi Note 9 to the "out of the box" state. Once you select "Erase all data", the phone will request a confirmation of action and possibly a password for unlocking the screen or Mi Account for security.

Once confirmed, the cleaning process will begin. The screen may go out, the Mi or Redmi logo will appear, and then the cleaning animation will appear. Don't touch the device at this point. The duration of the process depends on the amount of information accumulated, but usually takes 5 to 15 minutes. Once completed, the smartphone will restart and the wizard of the initial setup will start.

Method 2: Hard Reset with Recovery Mode

If the operating system is not booting, it's stuck on the logo, or the touch screen is not responding, you'll have to use Recovery mode, which works at the low-level software level, and allows you to run Wipe Data even when the system is not working, and you need to turn off your smartphone completely to enter this mode.

After turning it off, press both the volume button and the power button. Hold them until the Mi logo appears, then release the power button, continuing to keep the volume up until the Main Menu menu appears. Navigation is done with the volume buttons (up/down), and selection is done with the power button.

From the menu, select "Wipe Data", then "Wipe All Data" and confirm the action by "Confirm". The system will warn you that all data will be deleted. Once you have cleaned, select "Back to Main Menu" and then "Reboot" → "Reboot to System".

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If the volume buttons don’t work, try connecting the phone to your computer via USB-cable before entering Recovery – sometimes it helps the system recognize commands.

Delete your Mi and Google account (FRP Lock)

One of the most common problems after a reset is FRP (Factory Reset Protection) locking, an Android security mechanism that requires you to enter a password from a Google account that was synced to the device before reset, and if you forget that password, it will be extremely difficult to unlock the phone without contacting the service.

A similar situation occurs with Xiaomi account. If the phone was enabled with the function "Find device", then after the reset, the system will require you to enter the password from Mi-acca-unt. To avoid these problems, before resetting through the settings, be sure to log out of all accounts: Settings → Accounts and synchronization.

If the phone is already reset and you don't remember the passwords, things get complicated: the owner will have to prove ownership of the device in an authorized service center by providing a box and checks. At home, it is almost impossible to bypass FRP in legal ways, due to the increased protection in new versions of Android.

⚠️ Warning: Never buy a used Xiaomi Redmi Note 9 handheld if the seller cannot log out of your accounts and perform a reset.There is a high risk of getting a blocked brick that cannot be activated.

Possible problems and solutions

Users may encounter various difficulties during or after a reset, and a common problem is a bootloop. If the phone is stuck on the logo for more than 20 minutes, try re-entering Recovery mode and resetting again, making sure you have selected "Wipe All Data".

Another problem is that there is no network or Wi-Fi after the reset, which may be because the reset did not affect the modem partition, but the network settings were lost. Try resetting the network settings through the menu: Settings → Connection and Sharing → Reset Wi-Fi, mobile networks and Bluetooth.

Sometimes, after the first turn on, the phone can run slowly. This is normal behavior, since background processes optimize the database and the application cache. Let the device lie on charge with the screen on for about 30-40 minutes for the system to complete the background setting.

Initial adjustment after reset

Once you've completed the procedure, you'll see a welcome screen. Select a language and connect to a Wi-Fi network. The system will offer to restore data from a backup. If you've created a backup through the Mi Cloud or Google Drive cloud, just log in to your account, and contacts, notes, and schedules will be automatically downloaded.

Take your time to install all the apps at once. First, check for system updates in the Settings menu → About Phone → MIUI version. Installing the current version of the software can fix bugs that were present in the factory firmware. It is also recommended to immediately configure your fingerprint and face for ease of use.

To optimize the Redmi Note 9 experience, in the Advanced Settings section, disable unnecessary animations and ad services if they are enabled by default, making the interface more responsive and removing annoying pop-ups in standard apps.

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After reset, the phone takes 15 to 30 minutes of background work to fully optimize the system and install security updates.

Frequently Asked Questions (FAQ)

⚠️ Note: If you are resetting your phone for sale, remember to remove it. SIM-microSD card and memory card: personal photos and documents that the new owner can easily read.