Resetting your smartphone to Android to factory settings is a radical, but sometimes necessary step. It helps fix system crashes, remove viruses, prepare the device for sale, or simply restore it to its former speed. However, many users are afraid of this procedure: what if important data is lost? Or will the phone stop turning on after the reset? In this article, we will look at all the nuances - from preparation to recovery - so that you can reset confidently and without consequences.

The reset process varies depending on the smartphone model and version Android, but the general principles remain the same. We will look at three main methods: through the phone settings, using the mode Recovery and command ADB for advanced users. You will also learn how to properly save data before resetting and what to do if after the procedure the device behaves unstable.

⚠️ Attention: If your smartphone is locked with a pattern or password, and you do not remember the combination, resetting via Recovery is the only way to unlock it. However, this will lead to complete loss of data on the internal memory.

Modern versions Android (starting from Android 9 Pie) offer the function automatic backup in Google Account, but it does not saves SMS, call history and some application settings. This is often forgotten, so we will dwell in detail on alternative backup methods.

1. Preparing for the reset: what you need to do before cleaning

Before you begin the reset, make sure that all important data is copied to a safe place. Even if you plan to restore them later, it's better to be safe. Here's what you definitely need to save:

  • 📱 Contacts: export them to a file .vcf via the app Contact or synchronize with Google Account.
  • 📷 Photos and videos: transfer to computer, external drive, or upload to Google Photos (check if there is enough space in the cloud!).
  • 📄 Documents and files: use Google Drive, Dropbox or physical media.
  • 🔑 Passwords and logins: If you use a password manager (for example, 1Password or Bitwarden), make sure that the backup copy is up to date.
  • 🎮 Game saves: many games (for example, Genshin Impact or Clash of Clans) are tied to the account, but some store data locally - check in the game settings.

Pay special attention two-factor authentication (2FA). If you have verification enabled by SMS or through applications like Google Authenticator, resetting your phone may block access to accounts. Save backup codes or transfer 2FA tokens to another device in advance - this is critical for security!

It would also be a good idea to write down:

  • 📡 Settings Wi-Fi (network name and password), if they are not saved in Google Account.
  • 📱 Phone IMEI (dial *#06# in the dialer) - useful for restoring communication with the operator after a reset.
  • 🔄 List of installed applications (can be exported via Google Play in the section My applications and games).
📊 How often do you make backups data?
Once a month
Only before resetting
Never
I use automatic cloud copying

2. Method 1: Reset through Android settings (the easiest method)

This is a standard method that is suitable for most modern smartphones (Samsung, Xiaomi, Google Pixel, OnePlus etc.). The main condition is that the phone must turn on and allow you to go to the settings menu.

Instructions for Android 10 and later:

  1. Open Settings (gear icon in the application menu).
  2. Go to section System → Reset settings (on some devices the path may differ: General settings → Reset).
  3. Select Delete all data (factory reset).
  4. Enter PIN, pattern or password, if required.
  5. Confirm the action by pressing Reset phone or Delete everything.

On smartphones Samsung with shell One UI the path may look like this: Settings → Device maintenance → Reset → Reset data.

On Xiaomi (shell MIUI): Settings → About phone → Reset settings → Erase all data.

Make sure the phone is charged at least 50%

Disable screen lock (if possible)

Check that a backup has been created

Remember Google account details (logins/passwords)-->

⚠️ Attention: If the function Reset protection (FRP)is enabled on your phone, after cleaning you will need to enter the data Google Accountthat was associated with the device. Without this information, the phone will become a “brick”. data-i="125">Attention:

3. Method 2: Reset via Recovery Mode (if the phone does not turn on)

If the smartphone is stuck on the logo, does not respond pressed or locked, you will have to use the recovery mode - Recovery Mode. This method works on all devices, but requires caution: incorrect actions can lead to damage.

To enter Recovery, you need to turn off the phone and use the button combination: It differs for different manufacturers:

Brand Button combination Note
Samsung Power + Volume up + Bixby (or Home on older models) Release the buttons when the logo appears Samsung.
Xiaomi/Redmi/Poco Power + Volume up Hold until the menu with Mi Bunny.
Google Pixel Power + Volume Downappears, then select Recovery Mode In the menu Fastboot use the volume buttons to navigate.
OnePlus Power + Volume Down In the menu, select a language, then Wipe data.
Huawei/Honor Power + Volume up On some models you need to confirm the entry with the button Volume up.

After entering Recovery:

  1. Use the buttons Volume up/down to navigate and Power to select.
  2. Select item Wipe data/factory reset (on some devices - Clear eMMC or Erase everything).
  3. Confirm the action by selecting Yes or Confirm.
  4. After completion, select Reboot system now to reboot.

⚠️ Attention: On some devices (for example, Samsung s One UI 5+) after resetting via Recovery you may need to re-configure Knox - this is normal, but it takes extra time when you first turn it on.

What to do if Recovery Mode does not open?

If the button combination does not work, the firmware or buttons may be damaged. Alternative options:

1. Connect the phone to the PC and use the command adb reboot recovery (USB debugging required).

2. some Samsung you can enter Recovery via Download Mode (combination Power + Volume down + Bixbythen Volume up to confirm).

3. If all else fails, contact the service center - a flashing may be required.

4. Method 3: Reset via ADB (for experienced users)

This method is suitable if the standard methods do not work, and debugging USB was enabled in advance. It requires a computer with installed drivers Android SDK and knowledge of the command line.

Step-by-step guide:

  1. Connect the phone to the PC via a USBcable (original!).
  2. Open the command line line (cmd on Windows or Terminal on macOS/Linux).
  3. Check the device connection with the command: 
    adb devices

    The serial number of your phone should appear.

  4. Reset one of commands: 
    adb shell recovery --wipe_data

    or (for new versions Android):

    adb shell am broadcast -a android.intent.action.MASTER_CLEAR
  5. Wait for the process to complete and reboot.

If the command does not work, try the alternative: 

adb reboot recovery

adb shell twrp wipe data

(requires custom recovery like TWRP).

⚠️ Attention: Reset via ADB bypasses some security checks, so after the procedure you may need to re-activate Google. Account (even if FRP was disabled).

💡

If after resetting via ADB the phone is stuck on the screen saver, try going into Recovery Mode and running Wipe cache partition. This often solves the problem without losing data.

5. What to do after the reset: setup and recovery

After a successful reset, the phone will turn on. new. You will have to go through the initial setup:

  1. Select the language and region.
  2. Connect to Wi-Fi (it is recommended to use the same network as before the reset, if the router settings have not changed).
  3. Log in Google Account, which was linked to the device earlier (if enabled FRP, this is required!).
  4. Restore data from a backup (if one was created).
  5. Install the necessary applications from Google Play.

Data recovery depends on what kind of backup you made:

  • 📱 Google Account: contacts, calendar, some settings and applications will be restored automatically the first time you log in.
  • 🖥️ Local copy: transfer files from your computer or external drive back to your phone.
  • ☁️ Cloud services: download photos from Google Photos, documents from Google Drive etc.

If after resetting the phone is slower than expected, follow these steps:

  1. Update the firmware to the latest version in Settings → System → Software update.
  2. Disable unnecessary system applications (but do not delete them!).
  3. Install only those apps that are really necessary - avoid "junk" utilities.
💡

After the reset, do not rush to restore all the data at once. Start with the most necessary (contacts, instant messengers) and observe the operation of the phone for 1-2 days. This will help identify possible problems early. stages.

6. Possible problems after the reset and their solutions

Sometimes problems arise after returning to factory settings. Let's look at the most common ones and how to fix them:

Problem Possible. reason Solution
The phone asks to enter the old one Google Account after reset Activated FRP (Factory Reset Protection) Enter the account details that was bound before the reset. If you don’t remember, restore access via Google recovery page.
Device stuck on logo after reboot Cache or system files are damaged Log in Recovery Mode and do Wipe cache partition. If it doesn’t help, repeat the reset.
No network after reset (does not pick up the SIM card) Operator or IMEI settings are lost Check if it is inserted SIM card. If the problem persists, contact your operator to re-activate.
Battery drains quickly after reset Background processes are optimized in the first days Wait 2-3 days - usually the situation returns to normal. If not, check the energy saving settings.
Applications are not restored from Google Play There is no Internet or synchronization has failed Check your network connection. Go to Settings → Accounts → Google and enable synchronization.

If none of the methods helped, and the phone still does not work correctly, there may be a problem in the hardware (for example, damaged memory) or firmware. In this case, it is recommended to contact a service center.

⚠️ Attention: On some devices (especially Samsung and LG) after reset may work Knox - a security system that blocks access to some functions (for example ODIN Mode or root access). This is not an error, but a security feature.

7. Alternatives to a full reset: when you can do it. without it

Radical cleaning is not always required. In some cases, more gentle methods are sufficient:

  • 🧹 Clearing the cache: go to Settings → Storage → Cache data and click ClearThis will delete temporary files without losing personal data.
  • 🔄 Resetting application settings: in Settings → System → Reset settings → Reset application settings. Will return standard resolutions and settings for all apps.
  • 📱 Safe Mode: hold the button Power, then hold Turn off power until the prompt to switch to safe mode appears. This will help identify. problem caused by a third-party application.
  • 🛠️ Removing unnecessary files: use built-in tools like Files by Google or Smart cleaner on Xiaomi.

If the purpose of the reset is to eliminate lag or freezes, try first:

  1. Update all applications in Google Play.
  2. Disable animation in the developer settings (enabled via Settings → About phone → Build number (press 7 times)).
  3. Check the free space in the storage - if less than 10%, this may cause brakes.

8. Frequently asked questions (FAQ)

❓ Is it possible to return data after resetting to factory settings?

If a backup was not created in advance, it is almost impossible to restore data from internal memory. There are apps like Dr.Fone or EaseUS MobiSaver, but their effectiveness depends on the phone model and the degree of data overwriting. The chances are minimal if new files were written to the phone after the reset.

The exception is data on SD card (if it was not formatted, you can try to recover them using Recuva or PhotoRec on PC.

❓ Will the reset remove viruses from the phone?

Yes, full reset removes all data, including viruses and malware, that were in the user memory area. However, if the virus has penetrated into. system files (which happens extremely rarely), it can be saved. In this case, only flashing will help.

After the reset, install a reliable antivirus (for example, Malwarebytes or Bitdefender) and avoid installing applications from unverified ones sources.

❓ Do you need to remove the SIM card and memory card before resetting?

No, this is not necessary. Resetting to factory settings only affects internal memory the data on SIM card (contacts, SMS) and SD card (photos, music) remain untouched.

However, if you use SD card as internal storage (function Adoptable Storage v Android 6-9), it will be formatted. In this case, remove it before resetting.

❓ Why did the phone become slower after resetting?

This a temporary phenomenon associated with:

  • Background optimization of system processes (may take up to 48 hours).
  • Automatic downloading of application and system updates.
  • Restoring data from a backup (if enabled).

If the lag persists for more than 3 days, check:

  • Free space in the storage (must be at least 15-20%).
  • Availability of firmware updates.
  • Working background applications in Settings → Applications → Special access → Battery optimization.
❓ Is it possible to reset the phone to factory settings remotely?

Yes, if on the device:

  • The Google function Find device (Find My Deviceis enabled.
  • The phone is connected to the Internet (mobile network or Wi-Fi).
  • The Google account linked to the phone has rights administrator.

Instructions:

  1. Go to the website Find My Device and log into your account.
  2. Select the lost device from the list.
  3. Click Erase data and confirm the action.

⚠️ Attention: Remote reset does not work on all devices (for example, on some models Xiaomi and Huawei requires additional configuration). Also, after this procedure, the phone may require you to enter data Google Account the next time you turn it on.