Hi mate,
You saw that PMT 264 dodn't decrypted the Bios v.01 but It not means that It isn't Signed !
Unpack the ROM.CAB file and You'll find the Signature
Then We have to check that It hasn't Internal Check of Signature and is a 2nd step
Then over some Bios Updates HP doesn't give a way to turn back !!!
So We can downgrade only until a specific update and HP descibe It into Bios Update Notes !
You read them ? I haven't get time as I am very busy !
So now to make quickly It is Moddable and sometime getting 1st or 2nd Bios Update is not
Internal Check too so it's possible to use like a jumper to flash any Bios version Modded !
Now I think You have latest may be and only the Tools (SPI PGM + Clip) can do this job.
I have modded some ProBook and EliteBook thanks to Donovan6000 and CodeRush
to Them go all Credits (Donovan to Discovery and CodeRush to explore this hack) !
Look here :
https://www.bios-mods.com/forum/Thread-R...5#pid74575
let me know
Regards
To start just use these . . .
Use this tool run It as Admin and upload here the result file :
https://www.sendspace.com/file/64otcs or
http://rghost.net/65CWxR87y
http://rghost.net/53128665
Use AIDA64 tool too (cracked version to get FULL REPORT) and upload a Report too
let me know
Regards
Use Google to fiind mine Bios Mod for ProBook and EliteBook !