At the first, sorry for my language. My english isn't very good.
I have a problem with my HP EliteBook 8460p. I bought a SSD drive for my laptop then i got info that my BIOS F60. is blocking SATA 3 option so i got only SATA 2.
I found info on google that older BIOS F20. is still with SATA 3 config so i'm trying to install it but with no effects.
Of course i've tried to install it from Windows ( HPQFlash ) but program says that is older BIOS so i can't change it.
-install "HP BIOS Update UEFI" and "HP System Diagnostic UEFI" on my pendrive,
-put BIOS file ( 68SCF.bin ) in Hewlett-Packard/BIOS/New with .sig file ( signature file for BIOS file )
-restart my laptop, pressed F2 for "HP Advanced Diagnostic"
-choose "BIOS Managment"
-select install New BIOS
-UEFI found 68SCF.bin in /New folder
-but then i've got error says "The System BIOS update failed", "Signature of BIOS image failed verification"
So there is a problem with .sig file of course. I try all .sig files that i have. No one of them worked. I try to change names of .sig files for "69SCF.sig" but without effects. Still no verification