Modern smartphones running an operating system Android 9 Pieover time can accumulate software errors that significantly affect the speed and stability of the device. Users often encounter a situation where, after updating or installing dubious applications, the system begins to behave unpredictably. In such cases, the only reliable way to bring the gadget back to life is a complete data reset, known as Hard Reset or a return to factory settings.
The system rollback process does not require deep knowledge in programming, but it requires care and adherence to a certain sequence of actions. Failure to complete the steps correctly may result in the loss of important information or, in rare cases, bootloader crashes. That is why, before starting any manipulations, you need to clearly understand what actions you are performing and what result they will lead to.
In this article we will analyze in detail all the available methods of returning Android 9 to its original state, consider the nuances of working with the recovery menu and answer frequently asked questions. You will learn how to properly prepare your device so that after a reset you do not face a Google account being blocked or the loss of valuable photos and contacts.
Before taking decisive action, it is worth assessing the current state of your smartphone. If your device is running slowly but is functioning reliably, a less drastic method of clearing the cache may help you. However, if the problems are systemic in nature and interfere with normal operation, then a reset is the most effective solution.
⚠️ Attention: The full reset procedure permanently deletes all user data from the device’s internal memory. Photos, contacts, messages and installed applications will be erased.
Preparing the device for a full reset systems
The first and most critical step is to create a backup copy of all important data. The operating system Android 9 offers built-in tools for synchronizing with cloud storage Google Drive, but you should not rely on them alone. It is recommended that you manually copy important documents and media files to an external storage device or personal computer.
Particular attention should be paid to your Google account. Modern versions of Android use the FRP security system (Factory Reset Protection). If you perform a reset without first deleting the account or without knowing the password for it, the phone may lock, requiring you to enter the data of the last used profile.
- 🔋 Make sure that the battery charge is at least 50-60% so that the device does not turn off at the critical moment of writing system files.
- ☁️ Check the synchronization status of contacts and calendar in Google account settings so you don't lose your phone numbers.
- 💾 Remove the MicroSD card if installed, as some reset methods may also format it.
- 🔐 Write down or remember the PIN, pattern, or password you used to lock the screen before the reset.
It is also worth disabling two-factor authentication for important services if you do not plan to use the same phone number immediately after the reset, so as not to lose access to your accounts. This is especially true for banking applications and instant messengers.
☑️ Checklist before resetting
Reset via the Android 9 settings menu
The safest and easiest way to roll back the system to factory settings is available directly through the operating system interface. This method is suitable for cases when the smartphone turns on, the screen responds to touches, and you can freely navigate through the menu.
The settings interface in Android 9 Pie may differ slightly depending on the manufacturer's shell (for example, MIUI, OneUI or EMUI), but the logic of the actions remains the same. You need to find the partition responsible for general system settings or recovery.
To perform a reset, go to Settings → System → Additional settings → Reset settings. On some devices the path may look like Settings → Shared folder → Reset. In the menu that opens, select the option “Reset phone settings” or “Erase all data.”
⚠️ Attention: The menu interface may vary depending on the smartphone manufacturer. If you cannot find the item you need, use the settings search by entering the word “reset.”
The system will warn you that all data will be deleted. After confirmation, the process will begin, which can take from a few minutes to half an hour. The phone will reboot several times, and eventually you will see the initial setup screen, as when you turn on a new device for the first time.
Before pressing the "Reset" button, take a photo of the current screen and network settings on another phone - this will help you quickly restore the usual configuration after a reboot.
Using Recovery mode to roll back the system
If the smartphone does not boot, freezes on the logo or the touch screen does not respond, the only option is to use the recovery mode known as Recovery Mode. This mode is built into the device’s memory, regardless of the state of the main operating system.
To enter the Recovery menu on most devices, you need to turn off the smartphone completely. Then you need to hold down the key combination. Most often this is the power button together with the volume down button (“Volume Down”). On devices Android 9 You need to turn off your smartphone completely. Then you need to hold down the key combination. Most often this is the power button together with the volume down button (“Volume Down”). On devices Samsung you may need to connect the USB cable to the computer while holding down the buttons.
After the manufacturer's logo appears, release the power button, but continue to hold the volume button until a menu with text on a black background appears. Navigation in this menu is carried out using the volume buttons (up and down), and the selection is confirmed with the power button.
You need to find the item Wipe data/factory reset. Selecting this item will cause a confirmation to appear where you will need to select Yes or Factory data reset. After the cleaning process is completed, select item Reboot system now to reboot.
| Action | Button combination (Typical) | Button combination (Samsung) | Combination buttons (Huawei/Honor) |
|---|---|---|---|
| Enter Recovery | Power + Volume Down | Power + Volume Up + Bixby | Power + Volume Up |
| Navigation | Volume buttons | Volume buttons | Volume buttons |
| Confirmation | Power button | Power button | Power button |
| Exit menu | Reboot system now | Reboot system now | Reboot system now |
What to do if the Recovery menu does not open?
If standard button combinations do not work, your device may be using a hidden login method. Try connecting your phone to a charger or PC, then holding down the buttons. In some cases, you may need to quickly press the power button several times after the logo appears.
Deleting a Google account before resetting
One of the most common problems after a factory reset is the device being locked by FRP protection. This feature is designed to protect against theft, but often becomes an obstacle for legitimate owners who have forgotten their account information.
To avoid blocking, you must remove your Google account from your phone settings in advance. To do this, go to Settings → Users and accounts (or simply “Accounts”). Select the desired email address and click the “Delete account” button.
After deleting an account, the system may request a screen unlock password or SIM card PIN code to confirm the operation. This is normal security procedure. Only after the account disappears from the list can you safely perform a factory reset.
If you plan to transfer the phone to another user, deleting the account is a mandatory step. Otherwise, the new owner will not be able to activate the device without your personal data, which will create inconvenience for both parties.
Solving typical problems when resetting Android 9
During the system rollback process, users may encounter various difficulties. For example, the phone may freeze at the logo loading stage Android or reboot cyclically. This often indicates that system files are damaged or there is not enough free space for temporary files.
If after resetting the phone does not turn on for more than 10-15 minutes, try a forced reboot by holding down the power button for 10-20 seconds. In some cases, it helps to re-enter Recovery mode and select the item Wipe cache partition, which clears temporary files without deleting personal data.
- 🔄 Cyclic reboot is often solved by repeating Factory Reset through the Recovery menu.
- 🔌 If the phone does not respond to buttons, connect it to the computer via a USB cable and try to enter Recovery again.
- 📉 After the first turn on, the system may work slowly for 30-60 minutes while files are indexed - this is normal for Android 9.
In rare cases, it may be necessary to flash the device using a computer and special utilities, such as Odin for Samsung or SP Flash Tool for MediaTek processors. However, these are more complex procedures that require searching for specific firmware for your model.
If after resetting the phone continues to behave unstable, the problem may not be in the software, but in physical wear and tear of the device’s memory or battery.
Setting up a smartphone after returning to factory settings
After successful completion of the rollback procedure, you will see welcome screen. At this stage, it is important to take your time and carefully read the system’s proposals. First of all, select your language and connect to a Wi-Fi network to activate.
When you log into your Google account, the system will offer to restore data from a backup copy. You can select the most recent copy created before the reset to get back your contacts, call history, and list of installed apps. However, the applications will have to be downloaded again from the store Play Market.
It is recommended to immediately check for updates for the operating system. Manufacturers often release security patches that eliminate vulnerabilities that were present in the original version Android 9. Go to Settings → System → System update to check.
⚠️ Attention: Do not install all applications at the same time. It is better to do this gradually to identify the possible culprit of unstable operation if the problems persist.
It is also worth re-configuring biometric protection if your smartphone supports a fingerprint scanner or facial recognition. Sensitivity settings and the fingerprints themselves are deleted during a reset for security purposes.
Is it possible to recover deleted photos without a backup?
Unfortunately, when performing a Factory Reset, the data is not just hidden, but marked as free space. Without a previously created backup copy, it is almost impossible to restore photos, since new content quickly overwrites old memory sectors.
Frequently asked questions (FAQ)
How long does the process of completely resetting Android 9 take?
Usually the process takes from 5 to 15 minutes, depending on the amount of internal memory and the number data. However, the first startup after a reset may last longer - up to 20 minutes, as the system optimizes applications.
Will the operating system be deleted when resetting the settings?
No, the operating system Android and all built-in applications will remain in place. The reset returns only user settings and data to the “as from the store” state, but the firmware version (Android 9) will not change to an older one.
What should I do if the phone asks for a password for a Google account that I forgot?
You will need to restore access to your account through a computer or other device on the Google website. Without entering the correct data from the last synchronized account, it will not be possible to unlock the device in a legal way due to FRP protection.
Is it possible to interrupt the reset if it takes too long?
It is strictly not recommended to interrupt the process if it lasts less than an hour. Interrupting the recording of system files can damage the bootloader and the phone will no longer turn on, requiring a complex flashing.