WARNING! When you factory reset your device, all personal data stored on the phone’s internal storage will be deleted, including media files and ringtones, contacts, downloaded content, applications etc. In addition, all settings will be restored to factory values.

NOTE: Data stored on the SIM and SD cards will not be affected by the factory reset. You can visit this thread for a guide on how back up and restore data on the internal memory.

Factory Reset via Settings:

  1. Open the apps drawer
  2. Go to “Settings” and scroll to “Personal
  3. Tap “Backup and reset
  4. Turn “Back up my data” and “Automatic restore” ON or OFF
  5. Tap “Factory data reset” > “Reset device
  6. If your phone is protected by a lock screen, enter your password / PIN to proceed
  7. Tap “Continue” > “Delete all” to confirm

Factory Reset via Recovery:

NOTE: If your phone freezes, crashes, or otherwise prevents you from resetting it via Settings, alternatively you can try resetting your phone from the Android System Recovery menu, which can be accessed by performing a combination of button presses.

  1. Turn off the phone if necessary
  2. Press and hold “Power”, “Home” and “Volume Up” at the same time
  3. When the “Samsung” logo appears, release “Power
  4. At the “Android” logo, release “Home” and “Volume up
  5. After up to 2 minutes, you will gain access to Android Recovery Menu
  6. Once in Recovery, press “Volume down” to navigate the menu and highlight “Wipe data / factory reset
  7. Press “Power” to select the highlighted option
  8. Once the reset is done, “Reboot system now” should be highlighted
  9. Press “Power” to confirm and reboot your phone

Check for OS Updates:

NOTE: After you factory reset your device, it’s recommended to check if new software updates are available for download. Do check for updates:

  1. Open “Settings
  2. Scroll to and tap “About device
  3. Check if a new update is available
  4. If applicable, follow the on-screen prompts to apply any available update(s). NOTE: The update process will require at least one reboot

See More: Samsung Galaxy J2 Prime: Factory Reset via Settings / Recovery; Update the OS