How to downgrade BIOS ASUS notebook? here is step by step
Open cmd > type cd c:\Program Files (x86)\ASUS\WinFlash
note: if you dont have winflash installed, you need to install ATK package first (download from official ASUS website)
type WinFlash /nodate
note: without this command (/nodate) WinFlash wont Flash older bios
Find BIOS file
Click Flash!
Dont worry, this is not as horror as they said :p