How to make a hard reset on Xiaomi Redmi 9S

Xiaomi Redmi smartphones are famous for their reliability and optimization, but even such devices sometimes encounter software failures. The user may notice that the MIUI system has started to run slower, applications fly out for no reason or the phone stops responding to touch.

Hard reset is a deep memory cleanup procedure that deletes all user data, including contacts, photos and installed applications. For the Redmi 9S, this process is a standard diagnostic measure before contacting the service center. It is important to understand that once the operation is completed, it will be impossible to recover information without a backup copy.

In this guide, we will take a detailed look at all available reset methods, learn how to log into Recovery mode, how to bypass a forgotten screen lock password, and what nuances a Mi Account has when you completely clean the system.

Preparing the device for a complete data reset

Before you take any drastic action, you need to make sure that the battery is charged at least 60-70%. The process of formatting the data partition can take from 5 to 15 minutes, and a sudden power outage at this point can damage the system files. If the charge is low, the phone can go into an endless reboot or stop turning on altogether.

Make sure to back up important files. You can use Google Drive cloud storage or the built-in Mi Cloud app to save contacts and calendar. Photos and videos are best copied to your computer or external drive via a computer or external drive. USB-cable.

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Before reset, remove the MicroSD card, if installed, to prevent accidental formatting of external media and loss of media files.

It’s also critical to know the passwords from your Google and Mi Account. Once reset, Android security will require you to enter your account details that were previously synced to your device, and without that data, you won’t be able to unlock your phone even after you’ve successfully reinstalled the system.

• 🔋 Charge your smartphone battery to at least 70% for stable operation.
• 💾 Backup your contacts, photos and important documents to the cloud or PC.
• 🔑 Remember or write down the username and password from your Google account and Mi Account.
• 💿 Extract. SIM-MicroSD card and memory card before the procedure.

Reset method through the Android settings menu

If your Redmi 9S is on and you can unlock the screen, the easiest and safest way is to use the built-in menu.This method does not require remembering key combinations and minimizes the risk of accidental errors. Go to Settings, then select About Phone.

At the bottom of the screen, you'll find the Reset option, and the system will offer two options: clear all data, or just delete applications and settings. For a full hard reset, you'll need to select the first option, and then you'll need to confirm the action by entering the unlock pin.

The process may take some time, during which time the Redmi logo or download animation will appear on the screen.Do not interrupt the process or press buttons until the device itself goes to the screen of the original language setting.

⚠️ Warning: After selecting "Erase all data" the phone will immediately begin the deletion process. interruption of the operation at this stage will damage the file system and the inability to boot the OS.

Instructions for hard reset through Recovery Mode

In situations where the smartphone is not turning on, stuck on the logo or you forgot the pattern lock, Recovery mode will help. This is a special diagnostic interface built into the memory of the device. To log in on the Redmi 9S turned off, you need to press the Volume Up and Power buttons simultaneously.

Hold both buttons until the Mi logo appears, then release the power button, but keep holding the volume key. In a few seconds, a menu with a black or gray background and a list of commands in English will open, the navigation is carried out with volume buttons, and the choice of item is made by the power button.

In the menu list, select Wipe Data, then confirm the selection and press Wipe All Data. The system will warn you about the loss of information again. After confirmation, formatting will begin, the progress of which will be displayed as a percentage.

Removing the forgotten screen lock password

Often, users are looking for a hard reset to unlock the device if they have forgotten the password. Recovery completely removes the file with the access key. However, as mentioned earlier, this will only work if the phone has not enabled the Find Device feature with Mi Account binding.

If, after resetting and downloading, the system requires you to enter a password from a Google or Xiaomi account that you do not remember, it is almost impossible to circumvent this restriction by software methods without losing data. FRP (Factory Reset Protection).

In some cases, if the phone was previously tied to a computer with USB debugging enabled, you can try resetting the password via ADB. To do this, connect the device to the PC and type in the command:

adb shell rm /data/system/gesture.key

Once the command is executed and the password is restarted, the password must disappear, but on modern versions of MIUI, this method often does not work due to enhanced security measures, in which case only the entry of account data remains.

Solving problems after resetting settings

After a successful hard reset, the Redmi 9S may behave unusually in the first minutes of operation, the system re-optimizes applications, which causes the housing to heat up and increase battery consumption, a normal phenomenon that occurs after 20-30 minutes of use or after one or two full charge cycles.

If the phone is stuck on the Mi or Android logo for more than 15 minutes, the system partition may be damaged, which requires flashing the device through the computer using the Mi Flash Tool utility. A simple reset via Recovery will not help here.

⚠️ Attention: If the phone is constantly restarted after resetting (bootloop), do not try to reset again many times. This can finally "kill" the bootloader.

It's also worth checking the sensor and display, and sometimes after a deep reset, you need to calibrate the screen, and to do that, dial ##6484## on the phone menu to get to the engineering menu, and select the Touchpad test.

Frequently Asked Questions (FAQ)

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Hard reset is a radical, but often the only solution to software errors, and the key to success is having a backup and knowing the passwords from the accounts.

In conclusion, it’s worth noting that regular smartphone maintenance, cache cleaning, and uninstalling unused apps can prevent the need for frequent resets.Use MIUI’s memory optimization capabilities to keep your Redmi 9S running fast and stable.