By factory resetting your smartphone you can solve various issues you might encounter when using your device. If it crashes, freezes, performs poorly etc. and all the other options have been exhausted, you might want to apply a master reset and return all of the phone’s settings to factory values.

WARNING! Master resetting your smartphone will result in the deletion of all personal data stored on the internal memory. This includes downloaded content, applications, custom ringtones, pictures, media files, contacts and so on.

NOTE: To learn how you can back up your data before proceeding, visit this thread. You can also learn how to restore personal information by visiting this thread.

Master Reset via Settings:

  1. Ensure your personal data has been backed up
  2. Press “Menu” while viewing the home screen
  3. Go to “Settings” and access “Accounts”
  4. Under “Backup options” tap “Backup and reset
  5. Optionally, clear the “Automatic restore” and “Back up my data” check boxes
  6. Tap “Factory data reset” > “Reset device”
  7. In case your phone is protected by a password or PIN, enter the security credentials and tap “Continue”
  8. Tap “Delete all” to confirm and wait for the process to complete

Master Reset via Hardware Keys (Recovery):

NOTE: Use this method of reset in case your phone prevents you from master resetting it using the method above. Keep in mind that regardless of how you will reset your phone, personal data will be lost.

  1. Turn off your smartphone
  2. With the device turned off, press and hold the “Volume up”, “Power” and “Home” buttons at the same time
  3. After the phone vibrates, release the “Power” button but keep holding the other two
  4. At the “Android System Recovery” screen, release all hardware keys
  5. From the recovery menu press “Volume down” to navigate to and highlight “wipe data / factory reset”
  6. Press “Power” to select the highlighted option
  7. With “Delete all user data” highlighted, press “Power”
  8. When the “Reboot system now” message appears, make sure the option is selected and press “Power”
  9. Your phone should now reboot with all the settings restored to factory values

See More: Samsung Galaxy Grand Neo Plus: Master Reset via Settings or Recovery