How to reset Xiaomi Redmi 9 to factory settings: 3 proven ways

Resetting the Xiaomi Redmi 9 to factory settings is a radical but sometimes necessary step to solve system problems. Slowdown, persistent application errors, preparation for sale or elimination of the consequences of a virus attack can be different reasons. However, before you click the Reset button, it is important to understand that this procedure completely removes all data from the device, including photos, contacts, messages and installed applications.

In this article, we will discuss three official ways to reset: through the phone settings, using Recovery Mode and using Fastboot (for power users), each method is suitable for different situations, from a planned cleanup to the restoration of the “brick”, you will learn how to properly prepare the phone for reset to avoid losing important data and what nuances are characteristic of the Redmi 9 model with its MIUI firmware.

Why should you reset the Xiaomi Redmi 9?

Factory resets are not a panacea, but often the only way to get your phone back to life.

• 🐢 If Redmi 9 started to "lag" even after cleaning the cache and removing unnecessary applications, resetting will help eliminate the software debris accumulated in the system.
• 🦠 Viruses or malware: Some viruses are embedded so deeply that antivirus programs are powerless.Reset deletes all suspicious files.
• 🔄 Preparing for sale or transfer, so that new owners do not have access to your data, it is better to perform a complete cleanup.
• 🔧 Errors after the update MIUI. Sometimes new firmware versions conflict with user settings, leading to crashes.Reset helps "nullify" the system.
• 🔒 A forgotten pattern lock or password. If you can't unlock your phone, resetting via Recovery is one of the few ways out.

However, before you start, note that the reset will not help if the problem is hardware (for example, a malfunction of the motherboard or battery).

Preparing for resetting: how to save important data

The rule is that a reset without a backup is equivalent to losing all data. Even if you plan to restore your phone from the cloud, some files (such as messaging in messengers or saving games) may not sync automatically.

1. Sync your Mi Account. Go to Settings → Xiaomi Account → Mi Cloud and check if sync is enabled for contacts, notes, photos and calendar entries.
2. Back up to Google. In Settings → System → Backup, select Google Backup and save your apps, Wi-Fi networks, and settings.

Pay special attention to two-factor authentication (2FA). If you use Redmi 9 to confirm logins to banking applications or social networks, make sure you have backup codes or access to an alternative device.

Method 1: Reset via phone settings (the easiest one)

If the phone turns on and you remember the password, it's the fastest and most secure method, and it's suitable for routine resets or fixing software errors.

Instructions:

1. Open Settings (the gear icon on the main screen).
2. Go to the About Phone section (usually at the bottom of the menu).
3. Select Resetting → Delete all data.
4. Enter a password or pattern lock if the system requests confirmation.
5. Click Reset the phone and wait until the process is complete (usually takes 5-10 minutes).

After the reboot, you will see a screen of the initial setup, as after the purchase.The phone will prompt you to log in to your Mi Account or Google account - this is optional, but is recommended for recovering data from a backup.

⚠️ Note: If you are selling a phone, be sure to log out of your Mi Account before resetting, otherwise the new owner will not be able to activate the device due to the link to your profile. → Xiaomi account → Get out.

Method 2: Reset via Recovery Mode (if the phone is not turned on)

If Redmi 9 is stuck on the logo, doesn’t respond to touches, or you’ve forgotten your password, resetting through recovery modes will help, a method that works even on “bricks,” but requires care.

Steps:

1. Turn off your phone. If it's frozen, press the power button for 10 to 15 seconds.
2. Press the button combination: 🔘 Power button + 🔺 Volume up button.

Hold them until the Mi logo and Recovery menu appear.

• 📱 Wipe Data → Wipe All Data (complete reset).
• 🔄 Confirm the action by selecting Confirm.
• Wait until the end (the screen will display the inscription Data wiped successfully).
• Select Reboot → Reboot to System to reboot.

If the Recovery menu is in Chinese, focus on the icons:

- 🧹 — data-cleaning,

- 🔄 — restart.

Use the volume buttons (up/down) to navigate, and the power button to confirm.

💡

If the phone doesn't turn on after resetting via Recovery, try flashing it through Fastboot using the Mi Flash Tool. USB-cable.

Method 3: Fastboot Reset (for power users)

This is a method that works if the first two don't work, or if you need to reflash the phone from scratch, USB-Cable and basic knowledge of working with the command line.

What you need:

• 💻 Computer with Windows or Linux.
• 🔌 Original. USB-cable (non-named!).
• 📦 Mi Flash Tool (download from the official website of Xiaomi).
• 📱 Redmi 9 firmware (the version should match your model!).

Instructions:

1. Turn off the phone and turn it into Fastboot: Press Power + Volume down before the screensaver with a rabbit in the hat (Fastboot Mode).

Redmi 9

Mi Flash Tool

.tgz

Refresh

Clean All

Flash

Wait for the end (5-10 minutes). The phone will reboot automatically.

⚠️ Warning: Wrong firmware can turn your phone into a brick.Make sure the firmware version is right for your Redmi 9 modification (e.g. Redmi). 9C, Redmi 9A The model number can be found on the box or in the Settings menu. → The phone. → Model.

💡

Fastboot reset is the most radical method, not only cleansing the data, but also reinstalling the firmware, which helps even in severe system failures, but it requires caution: a mistake in choosing a firmware can bring the phone down.

What to do after resetting: initial setup

After a successful reset, Xiaomi Redmi 9 will offer to go through the initial setup.

1. Language and region choices: Indicate Russia or your country, and this will affect the services available (e.g. Google Play).
2. Wi-Fi connection. Without the Internet, you can't log in to your accounts and recover your data.
3. Log in to accounts: 🔑 Mi Account – to restore notes, themes and settings MIUI. 🔑 Google Account – to synchronize contacts, emails and apps.

Data recovery

Mi Cloud

Google Drive

Security setting

Password, PIN or pattern lock

1234

0000

If you're selling a phone, don't log in to accounts or set it up -- just turn it off and pass it on to the new owner. All data must be deleted at the reset stage.

⚠️ Note: After reset, some applications (such as banking) may require re-activation. SMS Or emails linked to these services, and check to see if the licenses for paid software (e.g., in games) have been lost).

Frequent Mistakes and How to Avoid Them

Even when following the instructions, users often encounter problems, and here are the most common mistakes and ways to solve them:

If the phone gets worse after the reset (e.g., artifacts appear on the screen or it spontaneously shuts down), this may indicate a hardware malfunction, in which case you should contact an authorized Xiaomi service center.

FAQ: Answers to Frequent Questions