[Request] Bios for Lenovo G505s

Hello,
I have this old Lenovo G505s laptop. I wanted to use its ePCI on which Wifi and Bluetoothe card is connected for another Wifi card. But it seems to not work.  I browsed a lot of threads here and realized even my laptop must be having a locked Bios.

I read about Coreboot too, but tools and hardware I need will take a month to reach me.

Can you please provide me with unlocked Bios which I can flash internally or using pendrive? 

Thanks!