Need help with vaio luminosity degree

Registration date
Friday September 7, 2012
Last seen
September 15, 2012
i have a vaio VPC S129FJ and i can't fixe the luminosity degree and my FN keys do not work i looked into the web for solution and i figured out that i need some drivers from sony website, the real problem is when i llooked in it for those drivers i haven't found the ones suitable for my model which is a bit new (VPC S129FJ) please help because the luminosity is still too low and i can't fixe it

plzzzz help i tried everything i found on the web i downloaded hotkeys utilities;vaio shared library and allll i found but i haven't found vaoi event service for VPC S129FJ and that , as i suppose, is the problem
or just tell me how to restore the factory settings (knowing that alt&F10 doesn't work with me