Reset Xiaomi Redmi 9 Note to factory settings: 3 working methods + error solving

Resetting the Xiaomi Redmi 9 Note to factory settings is a radical but sometimes necessary solution. Perhaps your device started to brake after the MIUI update, got infected with a virus, or you just want to sell it and delete all personal data. In any case, hard reset will return the device to the state of “out of the box”, but with important nuances: without proper preparation, you risk losing photos, contacts or even locking your phone due to the binding to your Mi Account.

This article covers all the current reset methods for the Redmi 9 Note (model M2003J15SS), including resets via settings, Recovery Mode and Fastboot. We will also break down typical errors (such as This device is locked) and explain how to avoid them. If you have never done a reset on Xiaomi, start with the backup section - this will save you hours to recover data later.

⚠️ Critical warning: On Redmi 9 Note models with firmware MIUI 12.5+ After reset, you may need to enter the username and password from Mi Account, which was associated with the device. If you do not remember the account details, the phone will turn into a “brick” – unlocking will require contacting the Xiaomi service center.

1.Reset preparation: what to do before hard reset

The factory reset erases all information from the Redmi 9 Note’s internal memory, including:

• 📸 Photos and videos in the gallery (except for those in the gallery) SD-map)
• 📞 Contacts that are not synced to Google or Mi Cloud
• 📱 Installed applications and their data (save in games, settings messengers)
• 🔑 Wi-Fi passwords, social media accounts, call history

To avoid losing something important, follow these steps:

1. Sync your contacts with Google Account or Mi Cloud: Settings → Accounts → Google/Mi Account → Sync.
2. Copy media files to your computer or cloud. Use Explorer → Allocate everything → Copy on your PC to speed up.
3. Save backup via Settings → Additional → Backup and Reset → Local Backup. The file will be in the MIUI/backup/AllBackup folder.
4. Remember the Mi Account if the phone is linked to a Xiaomi account. After the reset, you may need to log in.

Synchronized contacts | Photo/video | Local backup created | Memorized Mi Account | Battery charge checked (minimum 50%)

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⚠️ Note: If you are selling a phone, be sure to log out of all accounts (Google, Mi Account, Samsung Account, if any) before the reset. Otherwise, the new owner will be able to access your data through the recovery feature.

2. Method 1: Reset via the settings menu (the easiest)

This method is suitable if the phone is turned on and you remember the pattern lock or PIN-The interface may vary slightly depending on the version. MIUI (The Redmi 9 Note is usually on the same page. MIUI 12–14).

Step-by-step:

1. Open Settings (the gear icon on the main screen).
2. Scroll down and select About Phone.
3. Click Backup and Reset (in some firmware, the item is called Additional → Resetting).
4. Select Settings Reset.
5. The system will tell you what to reset. Mark to erase all data.
6. Enter the screen unlock password (if installed).
7. Confirm the action by clicking Reset Settings.

The phone will reboot and start the cleaning process, which will take 3-10 minutes, and when you complete it, you will see the screen of the initial setup, as after you purchase it.

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If the menu does not contain the item "Reset settings", try to enter the "Reset" request in the search box of settings - the system will tell you the right way.

3. Method 2: Hard reset via Recovery Mode (if the phone is not turned on)

If the Redmi 9 Note is stuck on the logo, does not respond to touch, or is locked with a pattern lock you forgot, resetting through Recovery Mode will help, which works even with damaged firmware, but requires care.

Instructions for entering Recovery:

1. Turn off the phone (press the power button for 10 seconds if it freezes).
2. Press and hold the Power button + Volume up at the same time.
3. When the Mi logo appears, release the power button, but keep Volume up until you see the Recovery menu.

In the Recovery menu, the volume buttons (Up/Down for navigation, Power for selection) are controlled.

1. Select Wipe Data (Called Clear Data or Factory Reset).
2. Confirm the action by selecting Yes.
3. After cleaning, go back to the main menu and select Reboot → Reboot to System.

⚠️ Note: If after resetting the phone requires the entry of Mi Account data, and you do not remember them, do not enter random passwords - after 5 unsuccessful attempts, the device will be locked for 24 hours.

Method 3: Reset via Fastboot (for power users)

This method is suitable if:

• 🔧 The phone doesn’t even boot in Recovery Mode.
• 🔒 You want to re-flash the device after resetting.
• 🛠️ You need to unlock the bootloader before installing custom firmware.

To reset via Fastboot, you will need a computer with drivers installed ADB/Fastboot original USB-On the Redmi models. 9 Note with a locked bootloader this method will erase all data, but does not unlock Bootloader – this requires an official procedure through the Mi Unlock Tool.

Step-by-step:

1. Turn off the phone.
2. Press the Power button + Volume down until a screen labeled Fastboot and a picture of a rabbit appears.
3. Connect your phone to your PC via USB.
4. Open the command line (Win + R → cmd) and type:

fastboot devices

(Your Redmi 9 Note should be displayed.)

fastboot erase userdata


fastboot erase cache




fastboot reboot

Once the commands are done, the phone will restart and begin the reset process, a method that is more reliable than Recovery, but requires minimal knowledge of working with ADB.

Yes, often |Tryed once |No, but I want to learn |No, and I don't plan |I don't know what it is-->

5. Typical errors in resetting and how to correct them

Even if you follow the instructions correctly, Redmi 9 Note users are facing problems.

⚠️ Warning: If after a reset, the phone gives you a No command error in Recovery, don't panic - it's not a critical error. Press and hold the Power Button, then briefly press Volume Up. Recovery menu should appear.

6.How to recover data after reset

If you have not made a backup, the chances of returning the data depend on which files were deleted:

• 📱 Contacts and calendar: If you have synced with Google or Mi Cloud, they will automatically recover when you first log in to your account.
• 📸 Photos: Check the folder DCIM/.thumbnails — Sometimes thumbnails are saved, and try programs like DiskDigger or Recuva (root rights required).
• 💬 Messages: Restore without backup SMS The exception is if you've used apps like this. SMS Backup & Restore.
• 🎮 Application data: Game saves (e.g. in Genshin Impact or PUBG Mobile) linked to gaming accounts. Sign in again, progress must catch up.

For the future: set up automatic backup in Settings → Google → Backup. Xiaomi also offers Mi Cloud (5GB for free) cloud storage where you can save contacts, notes and photos.

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The only reliable way to save data is to back up regularly, and it is almost impossible to recover information without a backup after a reset, especially if new files are written to the phone (they will overwrite deleted data).

7.Frequent questions about the Redmi 9 Note reset

8.Reset alternatives: when to do without hard reset

Before you drop your phone, check if a more gentle solution will help:

• 🐢 Phone brakes: Clear the cache through Settings → Memory. → Clear the cache. Also remove unused apps and turn off autoboot (Settings) → Annexes → Autoboot).
• 📱 Glutting firmware: Update MIUI Up to the latest version in Settings → The phone. → Updating the system.
• 🔒 Forgotten pattern lock: Try unlocking through Find Device on i.mi.com (Mi Account binding required).
• 🦠 Viruses: Install antivirus (like Malwarebytes) and scan the system.Most Android viruses are removed without being reset.

If the problem is not solved and you decide to reset, follow the instructions in this article – they are checked on the Redmi 9 Note with MIUI 12-14 firmware.

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Factory reset is a last resort, and 80 percent of the time, the problem is solved by cleaning the cache, updating the software, or removing conflicting applications.