Every smartphone owner eventually faces the need to return the device to its original state. Whether it’s selling a gadget, transferring it to another person, or a banal desire to fix accumulated software errors - the question of what comes first to the user. Many are afraid of losing important photos, contacts or correspondence, so they postpone the procedure until the last minute. what exactly will be deleted, comes first to the user. Many are afraid of losing important photos, contacts or correspondence, so they postpone the procedure until the last minute.
The process of returning to factory settings, often called Factory Reset, does erase a huge amount of data, but not everything is so simple. Understanding the mechanisms of the operating system Android allows you to accurately predict the fate of your files. In this article, we will analyze in detail which sections of memory are completely cleared, which files can survive, and how to minimize the risks of information loss.
Before pressing the treasured “Reset” button, you need to clearly understand the difference between the internal memory of the device and external drives. 90% of the success of the cleaning operation depends on this factor. Let's dive into the technical details so that you can act with confidence and not encounter unpleasant surprises after a reboot.
Internal memory: zone of total data destruction
The internal storage of the smartphone takes the brunt of resetting the settings. This is the area where the operating system, installed applications, and user content are stored by default. When you initiate the reset process, the system formats the partition /data, which means completely deleting all entries created by the user after purchasing the device.
First of all, the list of installed apps comes under the knife. All applications that you downloaded from Google Play Market or third-party sources will be permanently deleted, along with their cache and local settings. If you played games without being linked to a cloud account, your progress will be lost. The same applies to instant messengers: the local history of correspondence in WhatsApp or Telegram (in the absence of a backup copy) will disappear.
Media files stored in the internal memory are also subject to deletion. This applies to photos taken with the main camera, downloaded videos, music tracks and documents in the folder Download. The system does not differentiate between important family archives and temporary files - all space available to the user is cleared.
⚠️ Attention: Even if you moved files to hidden folders or changed their names, the reset algorithm erases the entire user partition. Do not expect that files in non-standard directories will survive.
It is important to note that system applications pre-installed by the manufacturer are not removed, but are only returned to their “out of the box” state. All of your personalization settings, such as wallpaper, widget layout on your desktop, and call settings, will also be reset to default.
External drives and SD memory card
The situation with the memory card SD is the most ambiguous and often causes confusion. The answer to the question whether information will be deleted from the flash drive directly depends on how exactly it was configured in the system Android. In modern versions of the operating system, there are two modes of working with external drives, and their reset behavior is radically different.
If the memory card is used in the “Portable Storage” mode, then during a standard reset of the phone, the data on it is usually saved. In this mode, the flash drive works as a separate disk where you manually transfer files. However, if you used the Adoptable Storage feature, the system encrypts the card and merges it with the main storage. In this case resetting the phone will also format the memory card, since the system considers it an integral part of the device.
To avoid data loss when using the card in internal storage mode, you must change its type to portable in the settings before resetting. This will require transferring all data back to the phone or computer, since the process of changing the mode is also accompanied by formatting. Only then can you safely reset the main device.
Before resetting the settings, remove the memory card from the slot. This is guaranteed to save all the data on it, regardless of the operating mode, and will avoid accidental formatting.
It is also worth considering that some smartphone manufacturers offer a “Clear SD card” checkbox in the reset menu. If you see such an item and it is active, it means that the system is warning you about the impending deletion of data from the external storage device. Read the reset wizard step carefully to avoid confirming an unnecessary action.
Accounts, synchronization and cloud services
One of the most common myths is that resetting the settings deletes the account Google from the company's servers. This is absolutely false. Locally on the device, the account is deleted, logged out and erased, but all information associated with this account in the cloud remains completely safe. This is the fundamental principle of the ecosystem Android.
Contacts saved in your account Googlewill not go anywhere. After entering your login and password on a reset device or any other gadget, the entire phone book will be instantly restored. The same goes for calendar events, notes Google Keep and documents Google Docs. This data is stored on servers and not in the phone’s memory, so a local reset does not affect it.
However, with photographs, the situation requires a careful approach. If you have auto-upload enabled in Google Photos, then all the pictures are already in the cloud and will not be lost. But if you turned off synchronization and stored photos only locally, then they will be lost when you reset. Check the synchronization status in the application Google Photos before starting the procedure.
| Data type | Local storage | Cloud storage (Google) | Result after reset |
|---|---|---|---|
| Contact | Deleted | Save | Restored when logging into account |
| Photos | Deleted | Save (if synchronization is enabled) | Depends on synchronization settings |
| Applications | Deleted | The list is saved in history | Need to be set again |
| Wi-Fi passwords | Deleted | Can be saved in the account | Most often you need to re-enter |
Passwords saved in the account deserve special attention browser Chrome or password manager Google. If synchronization is enabled, they will also be restored automatically. But if you stored passwords only in the browser memory without linking to an account, access to services will be lost, and you will have to use the password recovery function on sites.
Messengers and social networks: backup nuances
Social networks, such as VK, Instagram or Facebook, are practically independent of the local phone data. All your correspondence, likes and subscriptions are stored on the servers of these platforms. Once you install the app and log in, you will have access to your entire digital footprint. The only thing that may require setting up again are notifications and privacy settings inside the application.
With instant messengers the situation is more complicated. Telegram stores the entire history of correspondence in the cloud, so after logging in by phone number, all chats will appear instantly. Secret chats that use end-to-end encryption and are not stored on the server will be permanently deleted. This is a feature of the messenger's security architecture that is worth remembering.
The greatest risks are associated with WhatsApp i Viber. These apps store your chat history locally on your device by default. To save data, you must manually create a backup in the application settings before resetting. In WhatsApp this is done through the menu Settings → Chats → Chat backup.
☑️ Preparing messengers for reset
⚠️ Attention: To restore a backup WhatsApp on a new or reset device, you must use the same phone number and the same account Google Drivewhere the copy was saved. Otherwise, recovery will not be possible.
Don't forget to also check your two-factor authentication settings in critical applications. If you reset your phone and change the SIM card or number, access to accounts may be blocked without verification codes.
System settings and personalization
In addition to user files, resetting the settings affects the deep parameters of the operating system. All changes that you made to the interface and behavior of the smartphone will be canceled. This returns the device to the appearance and functionality it had when it was first turned on at the factory.
All access points Wi-Fi along with passwords will be deleted. You will have to search for networks again and enter security keys. Pairs Bluetooth with headphones, watches and car systems will also be severed. The process of pairing devices will have to go through from scratch.
Screen settings such as brightness, backlight timeout, font size and display style will return to standard values. If you installed third-party launchers or changed the theme systemically, these changes will disappear and you will see the standard interface Android or the manufacturer's shell (for example, One UI from Samsung or MIUI from Xiaomi).
Particular attention should be paid to the accessibility settings. If you used screen magnification, color inversion or voice control, these functions will be disabled for people with disabilities immediately after turning on the phone, so you should remember this in advance.
What happens to superuser rights (Root)?
If you have received them on your device. root access, resetting the settings in most cases does not completely remove them, since they are added to the system partition. However, all rights managers (for example, Magisk) and settings can be reset. To completely remove Root, a flashing of the device is often required.
How to properly prepare for the reset: step-by-step guide
For the process to be painless, it is necessary to carry out a thorough preparation. Pressing buttons randomly can lead to the loss of data that cannot be recovered. Follow the procedure to save everything important.
The first step should always be to check the synchronization. Go to your account settings Google and make sure that the synchronization icons next to contacts, calendar and other items are active and show the time of the last update. to make sure that the latest data has gone to the cloud.
Then back up your media files. Connect your phone to your computer via a USB cable and copy the folders DCIM, Pictures, Download and Documents to your hard drive. This is the most reliable way, regardless of Internet speed and cloud storage capacity.
Path to copy data to PC:
This computer → [Device name] → Internal memory → DCIM/Camera
Don't forget about two-factor authentication. If you use authenticator applications (for example, Google Authenticator), be sure to do so. export the codes or transfer them to another device before resetting. Otherwise, you may lose access to your accounts forever.
Golden rule of preparation: assume that after resetting the phone will become a completely empty brick. Save everything that cannot be downloaded again from the Internet.
Reset procedure and first steps after switching on
When all the data is saved, you can proceed to the procedure itself. The path to the reset menu may vary slightly depending on the model, but the general logic is the same. Usually it is located in the section Settings → System → Reset settings or Settings → General settings → Reset.
The system will prompt you to select the type of reset. Most often it is “Reset phone settings” (removing only settings and data) or “Reset all settings” (full formatting). Select the option with complete data deletion if your goal is a clean system. Confirm the action by entering the PIN code or screen lock pattern.
After confirmation, the phone will reboot and the cleaning process will begin, which can take from a few minutes to half an hour depending on the amount of memory and the speed of the drive. Do not interrupt this process and do not try to turn off the device, even if it freezes on the logo - this is a normal phenomenon during formatting.
After the procedure is completed, you will be greeted with a welcome screen with a choice of language. log in to your account Google. Logging into your account will start the process of restoring contacts, settings and, if available, previously installed applications.
⚠️ Attention: On some devices, after the reset, the protection may work. The system will require you to enter the password for the last Google account that was synchronized with the phone before the reset, and this is a measure to protect against theft. password is not possible legally. FRP (Factory Reset Protection). The system will require you to enter the password for the last Google account that was synchronized with the phone before the reset. This is an anti-theft measure and there is no legal way to bypass it without a password.
Interfaces and names of menu items may vary depending on the version Android and the manufacturer's shell. Always check the official instructions for your specific model if you cannot find the item you need.
Frequently asked questions. questions (FAQ)
Will the Android operating system be deleted when resetting the settings?
No, the operating system is not deleted. Resetting the settings only affects the user data partition (/data). The system partition (/system), where the OS itself and pre-installed applications reside, remain. intact. The phone will return to the version of Android that was installed at the time of the reset.
Is it possible to restore data after a factory reset?
Restoring data after a full reset (Factory Reset) on modern smartphones is almost impossible for the average user. This is due to the use of memory encryption. Encryption keys are deleted during the reset, leaving residual data on the chip. memory is unreadable. Specialized software from the Internet that promises recovery does not work in 99% of cases or is malicious.
Will resetting the settings remove viruses?
Yes, in most cases, a full reset removes viruses and malware, since they are located in the user partition. However, if the virus has penetrated deep into the system or has acquired superuser rights (Root), it can survive. In such cases, you need to flash the device through a computer.
What should I do if the phone asks for a Google account after resetting, and I don’t remember the password?
This is the FRP protection that worked. You need to restore access to your Google account through any other browser or device using the password recovery procedure. Without entering the correct credentials, you will not be able to unlock the phone in a legal way, since this is protection. from using stolen devices.
Do you need to remove the SIM card before resetting?
It is not necessary to remove the SIM card, the data on it (contacts, if they are saved on the SIM card, and the balance) will not be affected. However, if you plan to sell the phone, the SIM card must be removed for the reset procedure itself. Its presence or absence does not matter. roles.