hp 640 g2 password need bios dump

[SMDFlea]

Re: hp 640 g2 need bios dump

Try this bios .

[damian13030]

Re: hp 640 g2 need bios dump

not work.
Without bios, it doesn't start at all.

[SMDFlea]

Re: hp 640 g2 need bios dump

Ok try this bios,it has no DMI so you`ll have to fill in your serial etc with wndmifit/BCU ,this is a known good bios so if this one doesn`t work your problem is somewhere else .

[damian13030]

Re: hp 640 g2 need bios dump

Did not work. No sound signal, capslock blinks 5x.
The sound signal has always been present in previous dumps.

[rehan]

Re: hp 640 g2 need bios dump

how to remove hp 640 g2 and elite book 1040 g3 bios passsword plz help if u can

[peste]

Re: hp 640 g2 need bios dump

how to remove hp 640 g2 and elite book 1040 g3 bios passsword plz help if u can

try this tool.

https://www.badcaps.net/forum/showth...ght=hpunlocker

[GValdameri]

Re: hp Probook 640 g2 bios password

Hi friends.
I'm new here.
I have the same problem on my notebook HP 640 G2.
I bought an eprom recorder and tomorrow I must have it at home.
I want to know on which line will I find the BIOS lock code, so that I can remove it?
Thank you very much. ;-)

[RethoricalCheese]

Re: hp Probook 640 g2 bios password

There isn't a certain line. The address is slightly different even on same model.

[GValdameri]

Re: hp Probook 640 g2 bios password

There isn't a certain line. The address is slightly different even on same model.

I understand.
But in the hexadecimal file editor, what am I looking for?

[mermel]

Re: hp Probook 640 g2 bios password

hello ... I have a hp 640 g2 with the password on the bios, you can help me with this ... I tried with a bios from here and it gives me an error to start something of serial identification ... thanks, I attach the bios file

http://www.filedropper.com/hpg2reads

[peste]

Re: hp Probook 640 g2 bios password

try..

[mermel]

Re: hp Probook 640 g2 bios password

tnx it work …. hello form Romania

[RethoricalCheese]

Re: hp Probook 640 g2 bios password

I understand.
But in the hexadecimal file editor, what am I looking for?

Use my HPUnlocker tool and compare both files using hex editor.
You are looking either for BiosUser00 or UserCred. Depending on what gen machine you have.

[GValdameri]

Re: hp Probook 640 g2 bios password

Use my HPUnlocker tool and compare both files using hex editor.
You are looking either for BiosUser00 or UserCred. Depending on what gen machine you have.

I tried to run your program, but it presents me with the following message.
"Failed to execute script HPUnlocker"
I use Windows 10 and I'm running as an administrator, I also disabled my Norton, but even in compatibility mode with windows xp or windows7 it displays the error message.

Attached is the original file.
Thank you for help.

[RethoricalCheese]

Re: hp Probook 640 g2 bios password

Did you just download and open exe? Or drag and drop your .bin file?

Please read first post on how to use it.

[GValdameri]

Re: hp Probook 640 g2 bios password

Did you just download and open exe? Or drag and drop your .bin file?

Please read first post on how to use it.

I'm sorry, I'm sorry, I'm sorry.
I didn't really pay attention.
I dragged the file to your program and it identified the "UserCred".
PERFECT.
Now I am recording the chip and then I will test the notebook.

Just an observation.
I downloaded several programs to read the bin files, but none of them could find the word "UserCred".
Only yours.

Thanks for your help!!!

[RethoricalCheese]

Re: hp Probook 640 g2 bios password

That is because it is UserCred in unicode. That means it is written with 00-s in between each character. Thus it is actually seen as U.s.e.r.C.r.e.d

Hex editor or uefitool work fine for that, just use unicode when searching for UserCred or use regular string when searching for U.s.e.r.C.r.e.d

[GValdameri]

Re: hp Probook 640 g2 bios password

That is because it is UserCred in unicode. That means it is written with 00-s in between each character. Thus it is actually seen as U.s.e.r.C.r.e.d

Hex editor or uefitool work fine for that, just use unicode when searching for UserCred or use regular string when searching for U.s.e.r.C.r.e.d

Hello my friends.
I read the original BIOS and unlocked it with the friend's tool, RethoricalCheese.
But when testing the new unlocked BIOS, the notebook won't turn on.
Even if you reset the original BIOS with the password, the notebook will not turn on.
When placing another BIOS that I got here on this forum, the computer turns on, but emits 4 audible warnings and the monitor does not turn on.
My knowledge is limited.
Please, could someone help me.
Thanks.

[RethoricalCheese]

Re: hp Probook 640 g2 bios password

Seems like you did not verify the file you read. So your backup is faulty.

[lapfix]

Re: hp Probook 640 g2 bios password

Hello my friends.
I read the original BIOS and unlocked it with the friend's tool, RethoricalCheese.
But when testing the new unlocked BIOS, the notebook won't turn on.
Even if you reset the original BIOS with the password, the notebook will not turn on.
When placing another BIOS that I got here on this forum, the computer turns on, but emits 4 audible warnings and the monitor does not turn on.
My knowledge is limited.
Please, could someone help me.
Thanks.

Hope that you`re not using a clip! .