Xiaomi’s Redmi mobile devices are notoriously reliable, but even they can run into software errors over time: situations where the operating system starts to run unstable, applications freeze and the battery runs out faster than usual are familiar to many users. In such cases, the most effective solution is often to return the device to its original state, which allows you to remove accumulated software debris and reset erroneous configurations.
Resetting the Xiaomi Redmi Note 9 to factory settings is a radical but necessary step to restore the device to work. Before any manipulations, it is important to understand that this process will completely destroy all user data stored in internal memory. All photos, contacts, messages and installed applications will be irretrievably deleted unless you first back up them in the cloud or on external media.
In this guide, we will take a detailed look at all the available ways to perform this procedure, from standard system settings to the use of the Recovery Mode engineering menu. We will discuss how to proceed if the smartphone screen does not respond to touch, or if you forget the graphic lock key. Careful follow the instructions will help you return the device to factory speed and stability.
Preparing the device for a complete data reset
Before you start the active reset phase, you need to perform a number of preparatory steps that will secure your data and prevent possible errors in the process. The first and most critical step is to back up all important information. You can use the built-in MIUI tools to save data to Google Drive or locally to the memory card, if installed.
Make sure the battery is at least 50-60%, the process of formatting internal memory and reinstalling system files is energy-intensive. If the smartphone turns off in the middle of the procedure due to discharge, this can damage the system partitions and turn the device into a “brick”, requiring complex recovery through the computer.
☑️ Checklist before reset
Also remember to unplug your device from your Mi Account. If you don't, after the reset, the system will require you to enter the username and password from an account that was synced to your phone earlier. This is a feature of anti-theft, and without login data, you can't activate your smartphone.
⚠️ Note: Remove the microSD card before starting the procedure. MIUI They are usually asked if they need to format and SD-The risk of accidentally deleting data from the card is too great, so it is better to be safe and take out the drive physically.
Reset via the standard MIUI settings menu
The easiest and safest way to get the Xiaomi Redmi Note 9 back to factory settings is through the operating system’s GUI, which is suitable for when the smartphone is turned on, the screen is responsive to touch, and you have access to the desktop or settings menu. First, open the Settings app, which usually has a gear ikon.
In the options list that opens, scroll down to About Phone, and that’s where you’ll find the basic information about the model, the CPU version, and, importantly for us, the reset button. In some versions of MIUI, this might be called Advanced Settings, so check the options available if you don’t find the partition right away.
Click on “Settings Reset” (or “Factory Reset”). The system will warn you again about the consequences of this action. You will be prompted to select the option “Erase all data”. Once you press this button, the device can request input. PIN-unlock the screen or password from the Mi-account to confirm the identity of the owner.
- 📱 Open “Settings” and go to the “About Phone” section».
- 🗑️ Select “Reset Settings” and click “Erase all data».
- 🔒 Enter the unlock password or account password to confirm.
- ⏳ Wait for the process to be completed and the device to automatically restart.
Once confirmed, the cleanup process will begin, which can take anywhere from a few minutes to a quarter of an hour, at which time the Xiaomi logo or progress indicator may be displayed on the screen, and do not attempt to interrupt this process or turn off the phone, as this may disrupt the integrity of the file system.
What to do if the reset button is inactive?
Using Recovery Mode for Resetting
If the Android operating system does not boot, freezes on the logo or the screen does not respond completely to touch, the only way out is to use Recovery mode. This is a special diagnostic mode built into the device's memory regardless of the main operating system.
To enter Recovery mode on the Xiaomi Redmi Note 9, you need to turn the device off completely. Then simultaneously press the volume button and the power button. Keep them pressed until the Mi logo appears, after which the power button can be released, continuing to hold the volume button until the menu appears.
Navigation in the Recovery menu is done with volume buttons (up and down), and the power button selects the item. You need to find the "Wipe Data" item and select it. Then the system will prompt you to select "Wipe All Data" for a full reset. Confirm the action by selecting "Confirm".
| Action. | Control button | Appointment |
|---|---|---|
| Move upwards | Volume + | Raise the allocation by the paragraph above |
| Moving down | Loudness. | Delete the allocation by the paragraph below |
| Selection/Confirmation | Nutrition | Activate the selected menu item |
| Exit | Meals (long) | Forced reset |
Once you have finished cleaning the data in the Recovery menu, select Reboot and then Reboot to System. The smartphone will reboot and start the initial setup as if you just bought it from the store. This method is the most versatile and works even when Android system files are damaged.
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Recovery mode is the only way to reset settings if the phone doesn’t turn on to the desktop or the touch screen doesn’t work completely.
Resetting a forgotten password or pattern lock
One of the most common reasons Redmi Note 9 owners are looking for a way to reset is a forgotten screen lock password. Unfortunately, modern versions of Android and MIUI have a high level of protection, and it is almost impossible to get around the password without losing data. The only working method is a complete reset of the device that will delete the password too.
If you forget your password, you will have to use the Recovery Mode login method described above. The standard settings menu will be unavailable due to locking. Once you have completed the Wipe Data procedure and rebooted, the phone will start in the initial settings mode.
But this is where Google FRP (Factory Reset Protection) comes in: Once reset, the phone will require you to enter a Google account (email and password) that was synced to the device before locking, so that the attacker who stole the phone can’t just reset it and use it.
- 🔑 Forgotten password is deleted only with all data on the phone.
- 📧 Remember the login and password from the Google account linked to the phone.
- 📶 To verify the account may require a connection to the Wi-Fi network.
- 🚫 Without data from Google account, it will not be possible to unlock the device after reset.
If you don't remember your Google account data, it becomes a very difficult task to restore access to your device, requiring you to go to the service center with documents confirming your purchase, so always keep your account data in a safe place.
⚠️ Attention: There are many myths about "secret codes" for resetting passwords through dial menus.On modern Xiaomi smartphones with current versions MIUI These codes do not work or require an unlocked screen to be activated, making them useless in the event of a forgotten password.
Solving typical problems after resetting
Once the Xiaomi Redmi Note 9 has returned to factory settings, you may encounter a number of features of the system behavior. First, the first boot after a reset always lasts much longer than usual. This is normal, since the system needs to index files, check the integrity of partitions and configure basic services.
Second, the battery can run out faster than normal in the first hours or even the day, with back-end optimization processes, Google Play app updates and cloud data synchronization putting a lot of workload on the processor. 1-2 day to stabilize work.
If the phone continues to warm or discharge quickly after reset, try checking for system updates.Perhaps the current version of MIUI contains bugs that have been fixed in a more recent patch.Go to Settings → About Phone and click on the system version to check for updates.
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After reset, don't install all the applications at once, but install them in one or a small group to see which one might cause unstable performance or quick battery discharge.
Also worth paying attention to the operation of the sensor and display, if there are "dead zones" or spontaneous pressing ("ghost touch"), this may indicate a hardware problem that is not solved by a software reset, in which case a diagnosis is required in the service center.