request to remove the wifi whitelist from my Lenovo B590

Hello,
can someone remove the wifi whitelist from my B590?
BIOS Version H1ET69WW(1.12)
I made the backup using FPT_BACKUP-BIOS.exe

Here is the link to the backup:
http://www.mediafire.com/download/fbzz54...AKK_64.ROM

Thanks in advance.