Lenovo T420s bios unlock request

Lenovo T420s (64 bit)

Manufacturer: Lenovo
Model: T420s

BIOS Model: UEFI Version G7ET32WW/G7HT32WW (1.14)/(1.08) 

1.14 (G7UJ03US) 1.14 (G7ET32WW) 1.08 (G7HT32WW) 01 2012/09/05

I cannot find the original bios anywhere. any and all help appreciated.

Windows 7 (64bit)
Intel Core i5
12GB ram
Intel R HD4000

Looking to remove the white list from the empty Mini pcie slot.