Xiaomi’s Redmi series has proven to be reliable, but over time, even the most optimized system can become unstable. Users often experience slowdowns, application freezes, or software errors that cannot be fixed by standard cleaning methods. In such situations, a radical but effective solution is to return to the original state of the system, which allows you to remove all accumulated software debris.
The Redmi 9A reset procedure is standard for the MIUI shell, but it has its own nuances, ignoring which can lead to the loss of important data or locking the device. Before starting any manipulation, you need to clearly understand the difference between simply deleting files and fully formatting the memory partition. This article details all the available methods, from regular reset via the menu to using the Recovery engineering mode.
It is important to realize that after this operation, the phone will return to the state in which it was immediately after purchase in the store, all your personal contacts, photos, messages and installed applications will be permanently deleted, so preparing for the process is a critical step, requiring careful attention and a backup of information.
Preparing the device for full formatting
The first and most important step before starting a procedure is to back up all relevant data. Xiaomi's built-in tools offer convenient ways to store information in the cloud or on an external medium, neglecting this step is tantamount to voluntarily destroying your personal archives and working documents.
Be sure to check the battery charge level. The system partition formatting process and the re-installation of components can take 10 to 30 minutes, and a sudden power outage at this point can damage the bootloader. The optimal charge is at least 60-70%, which guarantees a successful completion of the operation even with a worn-out battery.
⚠️ Note: If the device is activated protection against theft Find My Device or Google account, be sure to remember the username and password. After reset, the system will require authorization under the same account that was synced earlier, otherwise the phone will remain locked.
It's also worth removing a microSD card if it's installed in a slot. Although modern versions of MIUI usually ask if you need to format internal memory along with external memory, physical extraction of the card guarantees the files on it, which is especially true if you store important documents or media files on a flash drive.
Method 1: Reset via the system settings menu
The safest and most recommended method for users who have access to the desktop and menu of the device, which minimizes the risk of errors, since the system itself controls the process of closing applications and cleaning partitions, you will need to go to the Settings section, which is usually represented by the gear icon.
In the settings list that opens, you'll find About Phone, which is often at the top of the menu. Scroll down and you'll find Reset option. Click on it and you'll find two options: Reset all settings (without deleting photos or contacts) and Erase all data. To get back to factory, you'll select the second option.
☑️ Checklist before resetting
The system will request confirmation of action and may require you to enter a graphical key or password to unlock the screen, a protective mechanism against accidental deletion of data by children or unauthorized persons, and after confirmation, a preparation process will begin, which can take several minutes, after which the device will restart and begin cleaning.
If you can't find the right item in the settings menu because of interface lags, you can search by settings. Type the word "reset" or "factory reset" into the search bar, and the system will prompt you to go to the right menu, which speeds up the search process in the confusing structure of MIUI parameters.
Method 2: Recovery Mode (Hard Reset)
If the phone doesn't turn on, freezes on the logo, or doesn't respond to touch, the only option is to use Recovery mode, which is also known as Hard Reset, and is triggered by a combination of physical buttons before the operating system boots up, and bypasses the non-working interface and accesses system functions directly.
To enter the recovery mode on Redmi 9A, you need to turn the device off completely. Then simultaneously press the Volume Up and Power buttons. Hold them until the Mi logo appears, after which the power button can be released, continuing to hold the volume button until the Main Menu menu appears.
⚠️ Attention: In the Recovery menu, the touch screen is not working. Navigation is done with volume buttons (up/down), and the choice of item is confirmed by a short press of the power button.
In the menu that opens, select Wipe Data and confirm the power button with the volume button, then select Wipe All Data and confirm the action by selecting Confirm. The system will warn you that all data will be deleted. After the process, which is displayed as a percentage, select Back to Main Menu, and then Reboot -> Reboot to System.
What to do if the Recovery menu doesn’t appear?
Resetting the forgotten screen lock password
One of the common reasons for resorting to the reset procedure is the loss of access to the device due to a forgotten pattern lock, PIN-In this case, the only way to get back access to the phone is to completely delete the data through Recovery Mode, since it is almost impossible to get around the protection without losing information on modern versions of Android.
The process is similar to the Hard Reset method described above, but has a critical difference in subsequent actions: After resetting and rebooting, the phone will start as new, but at the initial setup stage, you will need to enter a password from the Google account that was synchronized with the device before locking, this is FRP (Factory Reset Protection) protection.
If you don't remember the password from your Google account, it's very difficult to restore access, you can reset your password through your computer or another phone by going to the Google account recovery page, but if two-factor authentication hasn't been set up and your phone number is lost, you can't legally unlock your device.
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Write down your Google account and password in a secure location (notebook, password manager) immediately after you buy your phone, which will save you a lot of nerves in case of loss of access or needing an urgent reset.
Table: Comparison of data resetting methods
To make it easier to choose the right way, let’s look at the main differences between software reset via settings and hardware reset via Recovery, and understanding these differences will help you avoid unnecessary risks and choose the best way to solve the problem.
| Characteristics | Through Settings. | Through Recovery (Hard Reset) | Through the Mi Cloud |
|---|---|---|---|
| Access to the menu | Required. | Not required | Internet access is required |
| Difficulty | Low. | Medium | Low. |
| Deletion of data | Complete. | Complete. | Full (remote) |
| Risk of error | Minimum | Medium (human factor) | Minimum |
As you can see from the table, the method through settings is the most preferred method for the average user, since it is the most secure and understandable. Recovery is only necessary in critical situations when the system is not responding. Remote reset via Mi Cloud is convenient if the phone is lost, but it has enabled the Internet and the device search service.
Possible problems and solutions
Unforeseen situations can occur during the reset process that scare inexperienced users, such as the phone can hang on the Mi or Android logos for a long time. The first download after the reset always lasts longer than usual, sometimes up to 10-15 minutes, as the system optimizes applications and checks the integrity of files.
If the device is bootlooped cyclically after trying to reset, it may indicate damage to system files or lack of space in hidden partitions, in which case it may be necessary to flash the device using the computer and the Mi Flash Tool utility.
⚠️ Warning: Do not interrupt the first download after a reset, even if it seems long. Forced reboot at this point can cause damage to the file system and the need to contact the service center.
Another common problem is the message "failed to log in" or the activation requirement that doesn't go away due to network issues. SIM-The card is active, or connect your phone to a stable Wi-Fi network, sometimes waiting for 24 hours if the activation servers are overloaded helps.
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If after reset the phone continues to behave unstable, the problem may not be in the software, but in the malfunction of the hardware, for example, in the wear of flash memory.
Setting up the smartphone after returning to factory settings
After you successfully complete the procedure and download it for the first time, you will see a welcome screen similar to the one you bought, which is when you choose a language, connect to Wi-Fi and log into your Google account, and that is when you recover data if you have previously created a backup.
The system will suggest restoring applications and settings from the cloud, a process that can take time depending on the amount of data and Internet speed, and it is recommended to wait until the initial contacts and calendar sync is complete before you start using the device actively.
Don’t forget to reconfigure biometric protection (fingerprint or facial recognition) and set a strong password. It’s also worth checking for system updates in the Settings menu → About Phone → MIUI version, as after a reset, the firmware version may remain old, which affects security and performance.