- Take out your phone's battery, SIM-card and memory card too.
- After 10 seconds put the battery back into your phone.
- Press and hold Volume Up key + Home key then press Power key.
- Keep pressing the above keys until you get the Factory Reset menu.
- Keep pressing the above keys until you get the Factory Reset menu.
- Release all keys.
- Use Volume Down key to select Wipe Data / Factory Reset option.
- Use Power key to confirm the operation.
- Your phone will be rebooted after finishing the hard reset operation.
- Done.