[REQUEST] Lenovo G500 Whitelist Removal 78CN19WW(V1.07)

Hi,
Can anyone help me with witelist removal on my Lenovo g500?
I tried to remove bios whitelist, but I am afraid to install my modified version because i don't know how to enter in recovery mode if fails to "install".

Bios Type : Insyde
Bios version: 78CN19WW(V1.07)
Old wifi card: Atheros AR9485WB-EG
New wifi card: Intel AC 7260 2x2 AC BT

BIOS FPT BACKUP: https://www.dropbox.com/s/21m2h9ktqfbe8h...AKK_64.ROM

Thanks a lot!