HP BIOS unlock tool

[peste]

Will it work with 840 g5

read post #1..

[Zadiq]

Will it work with 840 g5

[akorede]

https://www.indiafix.in/2025/06/hp-g...wnload-hp.html


might be usefull

[Andreasbest]

I have a strange behavior with unlocked 8440p.
Admin password removed succesfully, i can enter bios with F10 BUT i can't change any setting, whatever i do when i save, exit and enter again BIOS it's not stored, like it's locked on specific settings.
I tried factory defaults, secutiry reset, bios update through Windows but no success.
Seems like the admin password really gone but the permission to make changes in BIOS remained.
Attached is the unlocked file that i flashed.
What do i miss?
SN: CZC13O234X

Thanks in advance!

Can't make MEanalyzer to run, colorama, crccheck etc seems impossible for me to install. Can someone clean ME to try it please?
Thank you!

[Andreasbest]

Try clear ME .
https://www.badcaps.net/forum/troubl...22#post1622422

But it's the original BIOS from this particular machine, i didn't use from another laptop, still need ME cleaning?

[hoaca388]

I have a strange behavior with unlocked 8440p.
Admin password removed succesfully, i can enter bios with F10 BUT i can't change any setting, whatever i do when i save, exit and enter again BIOS it's not stored, like it's locked on specific settings.
I tried factory defaults, secutiry reset, bios update through Windows but no success.
Seems like the admin password really gone but the permission to make changes in BIOS remained.
Attached is the unlocked file that i flashed.
What do i miss?
SN: CZC13O234X

Thanks in advance!

Try clear ME .
https://www.badcaps.net/forum/troubl...22#post1622422

[Andreasbest]

I have a strange behavior with unlocked 8440p.
Admin password removed succesfully, i can enter bios with F10 BUT i can't change any setting, whatever i do when i save, exit and enter again BIOS it's not stored, like it's locked on specific settings.
I tried factory defaults, secutiry reset, bios update through Windows but no success.
Seems like the admin password really gone but the permission to make changes in BIOS remained.
Attached is the unlocked file that i flashed.
What do i miss?
SN: CZC13O234X

Thanks in advance!

[SMDFlea]

programmer backup

[peste]

Could you unlock my BIOS?

HP Zbook g5

SN 5CD9131MFN

post the original contents of the bios chip..

The bios chip must be unsoldered from the board before writing or reading..
do not use the clip, you may have errors..if you do not have anything to unsolder it with,
solder wires between the programmer and the bios chip..

you need an SPI programmer...here is a video for example..https://www.youtube.com/watch?v=DWWi...nnel=ThisIsHow

[MchRichelieu24]

Could you unlock my BIOS?

HP Zbook g5

SN 5CD9131MFN

[bod0007]

SMDFlea I do not have CH programmer yet for flashing. The backup I have is previous BIOS done by the official updater.
Will that work? I have read a about the patch you mentioned. Just want to know if you talking about programmer backup or the normal update backup.

[SMDFlea]

Try to reset your bios backup to factory settings then reflash the bios, and at 1st boot press F10 and RESET BIOS to factory defaults https://www.badcaps.net/forum/troubl...y-bios-patcher

[bod0007]

<BIOSCONFIG Version="" Computername="BOD" Date="2025/06/17" Time="18:52:38" UTC="1">
SPM: Not Provisioned.
BEAM mode: Disabled.
<SETTING changeStatus="fail" name="Manufacturing Programming Mode" reason="Access denied" returnCode="6">
<OLDVALUE><![CDATA[Lock]]></OLDVALUE>
<NEWVALUE><![CDATA[Unlock]]></NEWVALUE>
</SETTING>
<ERROR msg="An operation failed" />
<ERROR msg="BCU return value" real="13" translated="13" />
</BIOSCONFIG>

SMDFlea I have tried to unlock mpm with that method serverally. shows this error

[SMDFlea]

Use BCU 4.0 (Bios Config Utility) under cmd.
biosconfigutility /get:1.txt and in 1.txt modify Manufacturing Programming Mode from *Lock to *Unlock (erase *from Lock and put it to Unock) save file as 2.txt and use biosconfigutility /set:2.txt then restart.

[bod0007]

The bios chip must be unsoldered from the board before writing or reading..
do not use the clip, you may have errors..if you do not have anything to unsolder it with,
solder wires between the programmer and the bios chip..

do I need to unlock BIOS to correct the DMI details.
Please point me to tutorials for dumping BIOS and restoring or flashing the unlocked BIOS file received from BIOS request.

[bod0007]

Hi all, I have a HP EliteBook 855 G7 with 845 G7 BIOS details(i.e SN and Product number) I tried to correct it with BCD utilities but not work. I read I need to unlock MPM. Kindly help

[peste]

The bios chip must be unsoldered from the board before writing or reading..
do not use the clip, you may have errors..if you do not have anything to unsolder it with,
solder wires between the programmer and the bios chip..

[erwer]

Hello,

I am trying to remove the BIOS lock of an HP elitebook 840-G8.

I have all tool & software (CH341A, RCUnlocker, AS-Programmer) available and working.

Since I don't have a suitable soldering station, I try to avoid soldering out the bios chip.

With a Wson-chip adapter, I read out the correct bios chip W25Q128JV on the motherboard, which is tricky.

Nevertheless I managed till now to read out the bios chip 8 times. Unfortinally all bios binaries are different, because of the of different CRC32 on the AS-Programmer. That is not suppriesing me.

Curiously the Unlocker tool works for all the different binaries.

The question is how to find the correct binary? Maybe the security mechanism use only a small memory part of the bios chip and the rest of the memory doesn't matter.

Has somebody experience with the topic, respectively any suggestions?

Br

[peste]

I've managed to do it but when I restart my laptop its still asking for a password when im go into f10.

Is there a video that shows how to do this from start to finish?

i'm sure I'm doing something wrong?

any help would be appricated.

post S/N, full name and model, motherboard model, product number,etc.
post the contents of the bios chip even if it is corrupted..

Don't post pictures unless asked.

[GreenTeam]

I've managed to do it but when I restart my laptop its still asking for a password when im go into f10.

Is there a video that shows how to do this from start to finish?

i'm sure I'm doing something wrong?

any help would be appricated.