[MinnowBoard] Can't boot to UEFI by pressing F2

[nb]

Hi all,

In some readings it is said to press F2 before powering up the MinnowBoard Max to boot to UEFI.
I can’t.
I can only by telling that from Windows 8.1, not by pressing F2
I have 079 firmware now.

Any idea ?

Thankx in advance

Regards

nb