ASUS X200MA BIOS Unlock Request

When I view my BIOS info it says 'American Megatrends', which I assume to be AMI. I intend to request a WLAN whitelist removal later, but for now I'm only interested in unlocking any advanced/hidden features (if any exist). The latest BIOS version for my model is 502, so the file I downloaded from ASUS support site is what I'm providing. I requested an unlock for a Lenovo G700 earlier this year, but multiple flashing attempts yielded errors. Hopefully this will be successful.

https://www.dropbox.com/s/klux64og5q2agj...S.zip?dl=0

Thanks in advance!