Samsung Galaxy Gio Factory Reset

  1. Turn off the device. If it is stuck then try to pull out the battery for a minute and then put it back in.
  2. Press down the Volume key and the Power button.
  3. Then release the Power button.
  4. Now a menu appear give you the options to Fastbook, Recovery, Clear Storage, and Simlock. Select Clear Storage. Use the Volume Down button to navigate the menu.
  5. Then press and release the Power button.
  6. Finally wait for your device to reboot.