How to reset to factory settings on Xiaomi Redmi 9 with NFC

Redmi series smartphones have long proven to be reliable devices, but over time, even the most optimized MIUI system can start to work unstable. If your Redmi 9 NFC suddenly slows down, applications fly out, or you just plan to sell the gadget, the only sure solution is a complete reset to factory parameters, which procedure will return the software to the state in which it was at the time of unpacking, removing all user data and accumulated software debris.

The process of restoring the original state does not require deep knowledge in programming, but it carries certain risks of loss of information. It is important to understand that after the operation is completed, there will be no photos, no contacts, no messages on the device, which is why it is critical to back up data in the cloud or on the computer before starting any manipulations, so that valuable memories are not lost forever.

In this article, we will discuss in detail all available methods of resetting, pay special attention to the procedure for deleting a Google account to bypass protection and consider the nuances of working with the Recovery section. You will learn how to properly prepare the Xiaomi Redmi 9 for the procedure to avoid locking the device or losing important files, and what steps should be taken if the standard method through settings does not work.

Preparing the device for a complete data reset

Before you take any action, you have to do a set of preparatory procedures that will keep your data and your device safe. The first step is always to back up. In the MIUI ecosystem, there's a built-in tool that allows you to save contacts, call logs, and even desktop layout. Without this step, it's almost impossible to recover information.

The second critical point is battery power: the process of formatting internal memory and reinstalling system files is energy-intensive. If the Redmi 9 NFC smartphone turns off when you write system tables, it can damage the bootloader. Make sure the charge level is at least 60%, and ideally connect the device to the network during the procedure.

It's also worth taking care of syncing with your Google account. Many users forget that once you reset, the system will require you to enter the username and password from the account that was the last on the device. This is FRP (Factory Reset Protection) protection mechanism. If you forget this data, it will be extremely difficult to unlock the phone, so it's better to remember them in advance or untie the device in Google's security settings before you start resetting.

Classic reset via MIUI settings menu

The easiest and safest way to get the Xiaomi Redmi 9 back to factory status is to use the operating system’s regular menu.This method is suitable in most cases when the smartphone is turned on, the screen responds to touch, and you have access to the basic features. First, go to the main menu and select the Settings icon, which usually looks like a gear.

In the settings list that opens, you need to find the About Phone section, which is most often located at the top or bottom of the list, depending on the shell version. Inside this section, scroll down to Reset. The system will warn you that all data will be deleted, and will suggest you choose the type of reset: with all files cleaned or only system settings. To completely clean up, select the option to erase all data.

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If the phone has a security update installed above 2021, the system may require you to enter a graphical key or screen unlock password to confirm the reset operation.

Once confirmed, the system can request a password from your Mi or Google account to verify the identity of the owner, which is standard security procedure, and once the data is entered, a preparation process will begin, which can take several minutes, followed by an automatic reboot and the formatting procedure itself, the indicator of which will be displayed on the screen.

Redmi 9 NFC reset via Recovery mode

Sometimes the smartphone freezes on the logo, doesn't respond to touch, or reboots cyclically, and in these cases, Recovery mode comes to the rescue. It's a special diagnostic mode built into Redmi 9 firmware that allows you to perform system operations without loading the main operating system. To enter this mode, you need to completely turn off the device.

When the screen goes out, press the volume button and the power button at the same time. Hold them until the Mi or Android logo appears, then release the power button, while continuing to hold the volume rocker. You will see a menu with several points in English. The navigation here is done with volume buttons (up/down), and the choice is with the power button.

In the menu list, select Wipe Data. The system will again warn you of the risks. Next, select Wipe All Data for full cleanup. Confirm the action by selecting Confirm. After the process is completed, which will take a few seconds, a success message will appear. Select Back to Main Menu, and then Reboot -> Reboot to System for normal reboot.

Deleting your Google account before resetting

The most common cause of post-reset problems is account security, FRP (Factory Reset Protection) is designed to protect the owner’s data in the event of a device being stolen. If you reset your phone through the Recovery menu without deleting your Google account through settings, the first time you activate it, the system will require you to enter a password from the account that was synced to the reset.

To avoid potential blocking, go to Settings -> Accounts and Sync (or just Google) before starting the procedure. Select the desired email address and click Delete Account. Repeat this operation for all associated accounts, including Mi Account. Only then you can safely reset in any convenient way.

If the phone is already reset and requires an account and you don’t remember it, it can take a long time to restore access through Google’s support service, so the rule of “delete the account first, then reset” is the gold standard for Xiaomi owners.

Solution: What to do if the reset does not help

Even after the Wipe Data procedure, the smartphone still behaves incorrectly, which may indicate deeper problems in the file system or the presence of damaged memory sectors. First of all, make sure that you choose the option “Erase all data” rather than simply “Reset Wi-Fi and Bluetooth settings”.

If the problem persists, it may be the recovery partition itself or system files that are damaged, in which case it is recommended to try reflashing the device using a computer and the Mi Flash Tool utility. This method is more complicated and requires installing ADB drivers, but it allows you to write all system partitions again, eliminating software errors that a regular reset does not remove.

⚠️ Warning: Using third-party firmware or interrupting the flashing process can turn your Redmi 9 into a brick.If you are not sure about your abilities, you should contact an authorized service center.

It's also worth checking the physical state of the buttons. If the volume button is stuck when pressed, the phone may be constantly trying to enter Recovery or Fastboot mode, creating the illusion of a software failure.

Initial adjustment after recovery

Once you successfully complete the reset and reboot, you'll see a welcome screen, just like on your new device. Choose a language, connect to a Wi-Fi network. At this point, the system may suggest that you restore data from the backup. If you've been backing up to the Google or Mi Cloud cloud, now is the time to activate it.

Take your time to install all applications at once. Give the system 10-15 minutes to back-end optimization and file indexing after recovery. This will help avoid lags in the first hours of use. Also make sure that the date and time are set correctly, as it affects the operation of many services and the security of connections.

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After a reset, the system works faster, but for stability it needs time for application background optimization and media file indexing.

In conclusion, cleaning your smartphone regularly from unnecessary files and monitoring apps you install will help delay the need for the next reset. However, if you sell your Redmi 9 to NFC, remember that for the new owner, it will be a blank slate ready for personalization.

⚠️ Warning: If you buy a used Redmi 9, be sure to check if the previous owner's account has been reset.Having someone else's Google account will make the phone useless to you.