Pls unlock this BIOS VERSION R0240Z8 VAIO MODEL VPCEG33FL

http://esupport.sony.com/LA/p/swu-downlo...group_id=6

this is the page of the bios

version R0240Z8
my laptop is a VAIO model VPCEG33FL

i still looking a treaht for solve this problem but nobody knows a bios like this unlock

pls help i need the opcion AHCI for install iatkos