HP BIOS unlock tool

[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.

[peste]

hello everyone, i am new here and could you please tell me how can i install hp unlocker tool? after i try to install it says FATAL ERROR DETECTED FAILED TO EXECUTE SCRIPT HPUNLOCKER

you don't have to install the program...read post #1.

[Muditha Folini]

hello everyone, i am new here and could you please tell me how can i install hp unlocker tool? after i try to install it says FATAL ERROR DETECTED FAILED TO EXECUTE SCRIPT HPUNLOCKER

[qwerty4512]

hi try

after on display ,bios notice 'systemnaufacture' ,can't open bios blackscreen ? have another solution?

[shiyab]

anyone please helpme can open for this bios password unlock (
type :HP x360 11 G7 ee
s/n:5CG1191N28

please helpme sirr )) thanksss

hi try

[qwerty4512]

anyone please helpme can open for this bios password unlock (
type :HP x360 11 G7 ee
s/n:5CG1191N28

please helpme sirr )) thanksss

[alihomee]

First check this site to see if your HP is supported for the great tool Mazzif has made.

http://mazzifsoftware.blogspot.com/p...os-unlock.html

If your model is newer and not in that list, you need to dump your bios, remove password from dump and reprogram bios with modified dump.

For that you need an SPI programmer like CH341A or Raspberry Pi with Flashrom or any other similar programmer. A soic8 clip is also useful so there wouldn't be a need to unsolder bios IC.

When you have your dump, just drag and drop your file on my HPUnlocker tool and it will create a new file. It will add "_unlocked" to the name of your locked file.

Just program the new file on your bios IC.

This unlocker should work on all Elite, EliteBook, ProBook and maybe some other series HP laptops.

For those of you who need to unlock large amounts of laptops, I recommend adding a registry entry:

Computer\HKEY_CLASSES_ROOT\*\shell\HPUnlocker\command

Then modify that string adding

"C:\*location-of-exe*\HPUnlocker.exe" "%1"

This way you just need to right click your locked file and select HPUnlocker.

If there are any issues, please do let me know so I can improve this tool.

All Elitebooks, Probooks and zbooks which are up to ninth generation which should be up to year 2018, like 840 G5, are supported. Newer models are not supported (yet atleast).

No Pavilions or other trash is supported

-----------------------------------------------------------------
NEW multitool and unlocker added .

Unlocking
HP - ProBook, EliteBook, ZBook (including 32MB models)
Chromebooks from all various manufacturers
Apple - everything older than T2
More to come...

RCUnlocker https://www.badcaps.net/forum/showthread.php?t=98539
.

i am looking to use this softwere with win 11 ...any update or suggations as win 10 is good for this softwere but win 11 id not working propely

[b4rdock]

SMDFlea sir ,here i can ask for help with my strange case password HP Zbook Firefly 14 G9 ?

[Andreasbest]

try

Hello!
Finally this BIOS worked, thank you very much.

P.S: It would be wise to keep in mind that under certain circumstances both utilities fail to edit the locked BIOS. Unfortunately i don't know the exact circumstances but i'll keep the locked BIOS stored in case someone wants to run some research.

Thank you again!

[danito]

Can someone please remove the password from the above bios manually?
Thank you in advance.

try

[Andreasbest]

Can someone please remove the password from the above bios manually?
Thank you in advance.

[Andreasbest]

Are you sure it has a password

Well yes, when i try to enter BIOS it asks for fingerprint OR password, if i press Esc it asks me if i want to enter as Guest.
Also the RCunlocker confirms there's a password and that password is removed.
I upload screenshot and original bios it self.
Thank you in advance

S/N: 5CG43701QQ

[SMDFlea]

Ok now i'm into a very weird situation.
I backed up the bios from a 650 G1, i drag into this tool and RCUnlocker too, the result is that both the original dump and the patched (from both tools) are identical!
I compare them with HxD
How is this even possible? I feel super dumb right now.

Are you sure it has a password

[Andreasbest]

Ok now i'm into a very weird situation.
I backed up the bios from a 650 G1, i drag into this tool and RCUnlocker too, the result is that both the original dump and the patched (from both tools) are identical!
I compare them with HxD
How is this even possible? I feel super dumb right now.

[rolodog]

Any further help on post 1577 please. Thanks

[SMDFlea]

Please read the rules before posting, you must post the laptop serial number - SNID or Service tag, post in an existing topic if there is one, post your backup etc,etc -> https://www.badcaps.net/forum/troubl...before-posting

[hat07]

doesn't work hp elitebook 840