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HP: Elitebook 850 G6 Bios password

Open mdixie opened this issue 3 years ago • 11 comments

Can someone assist me with resetting the BIOS password please?

mdixie avatar Jan 07 '22 12:01 mdixie

mdixie avatar Jan 07 '22 12:01 mdixie

Not vulnerable to BIOS Master Password attack. HP used to provide unique .bin files to unlock these but not for 3 years now. Your only method is to dump the BIOS via SPI reader, clean & rewrite to the laptop.

1024kbdotcodotnz avatar Jan 08 '22 00:01 1024kbdotcodotnz

@mdixie Give this password a shot. Can you provide a locked BIOS dump? qeh13u7a76

K3YL0 avatar Jan 08 '22 19:01 K3YL0

Here is a copy of the bios dump! Any help would be really appreciated? https://drive.google.com/file/d/10-rtbn6MuKomyTF7WNQuuyUZYOVd0I5r/view?usp=sharing

mdixie avatar Mar 31 '22 08:03 mdixie

@mdixie Give this password a shot. Can you provide a locked BIOS dump? qeh13u7a76

Unfortunately that password didnt work

mdixie avatar Mar 31 '22 08:03 mdixie

Here is a copy of the bios dump! Any help would be really appreciated? https://drive.google.com/file/d/10-rtbn6MuKomyTF7WNQuuyUZYOVd0I5r/view?usp=sharing

This is Your Dump Clean without Password Feedback https://www.mediafire.com/file/amgd8ite28gq6zf/hpG6_unlocked.bin/file

B0mberManFanky avatar Apr 01 '22 23:04 B0mberManFanky

Is the process to clean the dump documented anywhere? I have a locked EliteBook 840 G3 that I would like to attempt myself. Can I dump the BIOS image from Linux or do I need an external reader?

JonnyTech avatar Apr 02 '22 08:04 JonnyTech

Is the process to clean the dump documented anywhere? I have a locked EliteBook 840 G3 that I would like to attempt myself. Can I dump the BIOS image from Linux or do I need an external reader?

u need a programmer to read bios dump

B0mberManFanky avatar Apr 02 '22 23:04 B0mberManFanky

Does anybody know where to get a programmer for the Ho 850g6 chip

worlda1031 avatar Apr 16 '23 22:04 worlda1031

Try ch341a

aditya11ttt avatar Apr 17 '23 03:04 aditya11ttt

Hey, I have an HP 835 G7, I don't know the BIOS admin password and I don't want to get locked out. Of course HP support says I need a new motherboard and I need to pay even tho the laptop in under warranty. I have some questions:

  • Can I dump/load the BIOS (using CH341A) without removing the chip from the board ?
  • Once I have a dump, how did you know which bytes to change in the .bin @B0mberManFanky ?

awoimbee avatar Feb 13 '24 14:02 awoimbee