hp 640 g2 password need bios dump

[GValdameri]

Re: hp Probook 640 g2 bios password

Hope that you`re not using a clip! .

I'm not using a clip.
I removed the chip from the notebook and soldered it to the eprom reader.
I read the eprom and then saved the file.
after I unlocked it.

[RethoricalCheese]

Re: hp Probook 640 g2 bios password

Can't agree about the clip thing. 95% of the time I use a clip on soic8 chips. It either works flawlessly or verification gives me an error which makes me read again. And errors almost always happen when I have broken a wire on my programmer.

It is more about what programmer and software is used and how the user uses them. Success comes with knowledge here.

But yes, reading unsoldered chips is easier but this doesn't mean that you don't have to verify what you read. It is always something you must do.

[GValdameri]

Re: hp Probook 640 g2 bios password

Can't agree about the clip thing. 95% of the time I use a clip on soic8 chips. It either works flawlessly or verification gives me an error which makes me read again. And errors almost always happen when I have broken a wire on my programmer.

It is more about what programmer and software is used and how the user uses them. Success comes with knowledge here.

But yes, reading unsoldered chips is easier but this doesn't mean that you don't have to verify what you read. It is always something you must do.

Can you help me?

[RethoricalCheese]

Re: hp Probook 640 g2 bios password

Upload your files.

You need a file with clean ME and VSS section from your file (if it is intact).

[GValdameri]

Re: hp Probook 640 g2 bios password

Upload your files.

You need a file with clean ME and VSS section from your file (if it is intact).

This is the file read with the Ch341 programmer version 1.29.
Also attached with information about the motherboard.

[lapfix]

Re: hp Probook 640 g2 bios password

This is the clean of your file

[GValdameri]

Re: hp Probook 640 g2 bios password

This is the clean of your file

Did not work.
Please, clean this file that I saved in version 1.32 of the eprom reader.
This version 1.32 turns on the notebook, but the monitor does not turn on, and the fan runs at full speed.
Thank you.

[lapfix]

Re: hp Probook 640 g2 bios password

1.32 clean ME

[peste]

Re: hp Probook 640 g2 bios password

Did not work.
Please, clean this file that I saved in version 1.32 of the eprom reader.
This version 1.32 turns on the notebook, but the monitor does not turn on, and the fan runs at full speed.
Thank you.

[ATTACH]210516[/ATTACH]

try..

[GValdameri]

Re: hp Probook 640 g2 bios password

1.32 clean ME

Does not work.
Turns on the notebook, but the monitor does not turn on, the fan runs at full speed and the NumLock and CapsLock lights flash.

[GValdameri]

Re: hp Probook 640 g2 bios password

try..

Does not work.
Turns on the notebook, but the monitor does not turn on, the fan runs at full speed, the NumLock and CapsLock lights flash.
It also emits 3 beeps followed by another 2 beeps.

I left the notebook on for several minutes but nothing changes.

[peste]

Re: hp Probook 640 g2 bios password

try it too

[GValdameri]

Re: hp Probook 640 g2 bios password

Dear friends.
With your help I managed to solve the problem.
When testing one of the versions sent by you, the notebook showed beeps and signals on the screen.
I identified that the 3 beeps followed by 2 bytes refer to a memory problem.
So I cleared the memory (one less problem).
after that, i cleaned the monitor connector (one more problem solved).
Then, after realizing that there was a signal on the screen, I placed the unlocked bin file that was generated by the programmer Ch341A version 1.32.

The notebook came back to life.
You are all great.
Thank you for the patience.
Thank you all.
I'm sorry if my English was not very clear.

[lapfix]

Re: hp Probook 640 g2 bios password

Nice to hear that

[spying86]

Re: hp probook 640 G2

Hi all i Have hp Probook 640 G2 has bios password can anyone help me plzzz to remove the bios password and anyone can show me how to remove plzzzz

[lapfix]

Re: hp probook 640 G2

Hi all i Have hp Probook 640 G2 has bios password can anyone help me plzzz to remove the bios password and anyone can show me how to remove plzzzz

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

[thandazile85@gmail.com]

Re: hp Probook 640 g2 bios password

hi guys i have 640 g2 i hv programed the bios chip bt now it powers on bt no display

[peste]

Re: hp Probook 640 g2 bios password

hi guys i have 640 g2 i hv programed the bios chip bt now it powers on bt no display

post the original bios

[mhaita074]

Re: hp Probook 640 g2 bios password

Hi, could you also help unlocking my bios?
It's from a HP Probook 640 G2, bios version: N76 Ver.01.13

[lapfix]

Re: hp Probook 640 g2 bios password

Hi, could you also help unlocking my bios?
It's from a HP Probook 640 G2, bios version: N76 Ver.01.13

Try