Hard Reset SAMSUNG I200 Galaxy Stellar 4G

1. First make sure, that your phone is off.
2. Press and hold Volume Up + Home button + Power button.
   
   * Home button is second from left, similar to the up arrow.
3. Next select option: "wipe data/factory reset" using Volume buttons to browse option, and to confirm use Power button.
   
4. Then confirm operation "yes" with Power button.
   
5. After that, press Power buton to choose option "reboot system now".
   

WARNING !
Hard Reset will erase all of your data
All described operations you are doing at your own risk.