How do you unblock your s8300 samsung phone?

If you have forgotten the phone lcok code or received a device that has one on it and it is unknown and you are unable to get in to the device menus to change it then the only thing you can do is to do a master reset. CAUTION: A master reset changes the phone settings back to the manufacturer default. This process will erase all downloaded applications (ringtones, wallpapers, graphics, etc), contacts, and downloaded settings The master reset and the loss of data cannot be undone. Enter *2767*3855# from the standby screen. (You may need to remove the SIM before it will allow you to type the code in).