Request for Samsung NP-R480 BIOS unlock

Hello and good night my friends!

I have a samsung NP-R480-JT01CA (Intel core i5 M430, Nvidia GeForce GT330M, 4GB DDR3 1066MHz).
It has a Phoenix Technologies BIOS, the current version is 12SZ.M005.20110528.XW 
This BIOS has very little configuration options and I need to change de frequency of my RAM.
Can you guys please help me to unlock my bios???
The link to download it from the samsung website is - http://org.downloadcenter.samsung.com/do...Update.exe

Thank you guys very much!
And sorry about my crap english!