How to mod BIOS to enable POST in AMI UEFI BIOS?

Hello, I have a GA-X79-UD3 (rev 1.1) which has BIOS F20 which has POST disabled but the previous BIOS F14 has POST enabled where you could press the TAB key.

Here is the F14 BIOS: http://download.gigabyte.ru/bios/mb_bios_x79-ud3_f14.exe
Here is the F20 BIOS: http://download.gigabyte.ru/bios/mb_bios_ga-x79-ud3_f20.zip

Can someone give me some guidance to do so?

Bump

Obviously nobody from our Forum members can help you.
If the "Power-On-Self-Test" shouldn’t work with the newest BIOS for your mainboard, you should better contact the Gigabyte support.

POST is working as intended for him.
In the old version, there was a hotkey (TAB) to switch from the fullscreen logo to the POST screen.
In the new version, this hotkey was removed.

There is one simple solution: disable fast boot and disable fullscreen logo.
But I don’t know if BIOS F20 provides these option, though…

Fastboot is disabled but I will check with the option of fullscreen logo.