Samsung Galaxy J1 4G
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1st method

  • Go to Settings -> Backup and Reset -> Factory Data Reset -> Reset Device -> Delete all
  • Wait until phone reboots

2nd method

  • Power off the phone
  • Press and hold Volume Up (Yellow) + Home Button (Red) + Power on (Blue)
  • When phone vibrate release the Power button (Blue) and keep holding the other buttons
  • When you see android logo release all buttons
  • With Volume down button go to Wipe data / Factory Reset and press the Power button (Blue)
  • With Volume down button go to YES — Delete all user data and press the Power button (Blue) to confirm
  • After format go to reboot device and press the power button (Blue)
Samsung Galaxy J1 4G Hard Reset
Samsung Galaxy J1 4G Hard Reset
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Let us know if worked by leaving a comment :)