Request help in unlocking HP Pavilion x2 12-b020nr Bios

Hi everyone, this is my first post. I can really use you guys help as I am stuck at my first trial on modding the BIOS.

My goal is to unlock all menus and option in Bios setup

I download and used to HP Bios updater to save the Bios file. There are 2 files. Then I loaded the first one in AMIBCP, changed all tabs and options to USER. However, I found a post (forget the link) about AMIBCP corrupting Bios save.

My questions are:

1. Should I use a hex editor instead of AMIBCP? If so, how?
2. How can I flash the Bios after modding it?

I have attached the 2 bios files below. Any help will be very much appreciated.

BTW, there are two .sig files following the BIOS files. I think may be the Bios will check the bios with the sig file when flashing.
[attachment=12479]

Edit: changing question 1

  bios.zip (Size: 9.18 MB / Downloads: 0)