Redmi smartphones are known for their reliability, but even the most stable systems sometimes require radical intervention. If your Redmi 9C NFC is slow, hangs constantly, or you just plan to sell the device, the only sure solution is a complete factory reset, which completely clears internal memory, removing all user data, applications and settings, returning the gadget to the state “out of the box”.
9C owners often face a need to clean up after a failed firmware experiment or when transferring the rights to the phone to another person. It is important to understand that the Hard Reset process will affect all memory areas, including photos, contacts and correspondence in messengers. So it is critical to back up data before starting any manipulations so that important information is not lost irretrievably.
In this article, we will take a detailed look at all available reset methods for Xiaomi Redmi 9C. We will look at the standard Android and MIUI operating system tools, as well as how to force reset via the Recovery Recovery menu if the phone has stopped responding to touch. Follow the instructions carefully to perform the procedure safely.
Preparation of the device for the cleaning procedure
Before you click the confirmation button, you need to do a series of preparatory steps, and ignoring this step can lead to loss of access to accounts or locking the device security systems. The first step should always be to synchronize important data with the cloud storage or computer.
Make sure that the battery charge is at least 50-60%. The process of formatting the data partition is power-intensive, and suddenly turning off the phone in the middle of the operation can damage system files. SIM-MicroSD card and memory card, unless you plan to format an external drive along with internal memory.
☑️ Checklist before reset
The critical thing is that you have to link your Mi Account, and if you've searched for a device on your phone, you'll need to reset your account login and password that you've synced with before, and it's anti-theft, and you can't get around it without the owner's data.
⚠️ Note: If you don’t remember the password from your Mi Account, be sure to untie the device from it via i.mi.com before resetting, otherwise the phone will turn into a “brick” with an authorization request.
Method 1: Reset via MIUI settings
The easiest and safest method for every user is to use the built-in functionality of the system, which is suitable for cases where the phone interface is stable, the screen responds to touch, and you can freely navigate the menu. First, go to the main settings menu of your Redmi 9C.
In the list that opens, find the About Phone or Advanced Settings section, depending on the version of the MIUI shell. We need the Settings Reset option. In some firmware versions, the path may look like Settings → About Phone → Reset. Here, the system will offer two options: Reset all settings (return only system settings) and Clear all data (full Hard Reset).
Choose "Clear all data." The system will alert you that all files will be deleted. Confirm the action by entering a pattern lock or a screen unlock pin, and then the phone will restart and begin the formatting process, which can take from 5 to 15 minutes.
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Before you final confirm the reset via your settings, take screenshots of important Wi-Fi passwords or APN settings if you’re afraid to forget them.
In the process of cleaning, the screen can go out and light up several times. This is normal behavior of the Android operating system. Don't try to interrupt the process, even if it seems to be a long time. Once completed, the smartphone will turn on as a new one, suggesting you choose a language and connect to the network.
Method 2: Reset via Recovery Mode (if the phone is not turned on)
If MIUI is so damaged that the phone is stuck on the logo or does not respond to touch, you will have to use Recovery mode. This method works at the kernel level and does not require a working interface. To enter this mode on Redmi 9C, a combination of physical buttons is used.
Turn off the smartphone completely. Then simultaneously press the Volume Up and the power button. Hold them until the Mi logo appears on the screen, and then the power button can be released, while still holding the volume. In a few seconds, the Recovery menu will open.
Navigation in this menu is done with volume buttons (up/down), and the choice of item is made by the power button. You need to find the Wipe Data item and select it. Then the system will suggest you select Wipe All Data. Confirm the choice by going to Confirm.
| Action. | Control button | The result |
|---|---|---|
| Moving on the menu | Volume Up/down | Selection of the right item |
| Confirmation of choice | Power button | Execution of the team |
| Exit from the menu | Reboot's pick | System restart |
⚠️ Warning: In Recovery mode, the touch screen is not working. All actions are performed only with mechanical buttons, so press them clearly and with a slight delay.
Once confirmed, the cleanup process will begin, the progress of which will be displayed as a percentage. Upon completion, you will see the message "Data wiped successfully." Select Reboot → Reboot to System to run the updated system.
What happens if Recovery does not open?
Method 3: Remote reset via Google Find My Device
There is a scenario where the phone is locked but connected to the Internet and you can't unlock the screen to log in to settings, and Google Find My Device will help, which requires that the device has Internet and geolocation enabled in advance, and a Google account logged in.
Go from your computer or other smartphone to android.com/find. Sign in to the account that is linked to the problematic Redmi 9C. From the list of devices, select your model. From the device management menu, select the option “Erase Device”.
Once the command is confirmed, the phone, if it's online, will receive a signal to reset immediately. If the phone was offline at that point, the command will be executed automatically as soon as it appears on the network, which is an effective way to protect data if the gadget is lost.
Importantly, this method does not require physical access to the phone's buttons, but is entirely dependent on the quality of the internet connection.If the SIM card is taken out or the Wi-Fi is turned off, the team will stay in line until the next connection.
Common mistakes and ways to solve them
The reset process on Xiaomi can be accompanied by various nuances that put users at a loss. One of the common problems is a cyclic reboot after cleaning. This can occur if the system update installation was interrupted before reset or the cache partition was damaged.
Another common situation is the requirement of a password from a Mi Account after a reset that the user forgot about, in which case access can only be restored through the account recovery procedure on the official Xiaomi website. No "magic" codes or third-party programs will help to bypass this protection, since it is sewn into the server level.
If the phone is cold or discharges quickly after reset, give it 30-40 minutes at rest. The system indexes files and optimizes applications in the background. This is the normal behavior for Android after a clean installation.
⚠️ Warning: Do not try to query the phone with third-party firmware immediately after reset unless you are sure of your actions. NFC and other hardware components.
Initial adjustment after reset
When the cleaning process is complete and Redmi 9C welcomes you to choose a language, the setup phase begins. Don't rush to connect all services at once.
When you log in to your Google account, the system will suggest you restore data from the backup. If you created the backup before reset, select it. This will return contacts, call history and installed applications. However, the applications themselves will be downloaded from the Play Market.
Pay special attention to the biometrics settings: the fingerprint scanner and facial unlock must be reconfigured, as the old biometrics were permanently deleted during the formatting process.
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After the first switch on after reset, the system can work slower than usual for 15-20 minutes - this is background optimization, which does not require user intervention.