hp 640 g2 password need bios dump

**bat789** · 03-10-2023, 04:56 PM

HP ProBook 640 G2 Bios Password deletion

Hello,
could someone remove the password on this bios file for me ? please.

**lint4u** · 03-10-2023, 06:59 PM

Re: HP ProBook 640 G2 Bios Password deletion

Originally posted by bat789

Hello,
could someone remove the password on this bios file for me ? please.

Try this and report

Attached Files

lr-factory_unlocked.zip (8.37 MB, 22 views)

**bat789** · 03-11-2023, 01:19 AM

Re: HP ProBook 640 G2 Bios Password deletion

Originally posted by lint4u

Try this and report

Thanks. Let me check.

**bat789** · 03-11-2023, 04:38 AM

Re: HP ProBook 640 G2 Bios Password deletion

Originally posted by bat789

Thanks. Let me check.

Hey, I don't know who you are but you saved my sister laptop !!!

I flashed your bios file with ch341a and flashrom on macos ventura.

Thanks !!! Thanks !!!

**bat789** · 03-11-2023, 04:14 PM

Re: HP ProBook 640 G2 Bios Password deletion

Originally posted by lint4u

Try this and report

for a few hours, the pc turns off automatically without signal, and when I turn it back on, sometimes 3 + 2 beeps, or the led of the capslock key flashes or it turns off without screen. I don't at all want to put back the old bios which contains an unknown password. what do you think would be the issue?

**bat789** · 03-12-2023, 09:49 AM

Re: HP ProBook 640 G2 Bios Password deletion

Originally posted by bat789

for a few hours, the pc turns off automatically without signal, and when I turn it back on, sometimes 3 + 2 beeps, or the led of the capslock key flashes or it turns off without screen. I don't at all want to put back the old bios which contains an unknown password. what do you think would be the issue?

Not a bios problem. it seems that a assembly issue. Again thanks for your bios file.

**marksmanx** · 03-23-2023, 04:48 PM

Re: hp 640 g2 password need bios dump

Hi, can someone pls help me? I have this BIOS file that is corrupted, It´s from HP 640 G2. I've tried to clear the errors, but with no luck.

TY in advance!

Attached Files

bckp_orig_HP640g2pokv.rar (898.6 KB, 12 views)

**lapfix** · 03-24-2023, 03:34 AM

Re: hp 640 g2 password need bios dump

Originally posted by marksmanx

Hi, can someone pls help me? I have this BIOS file that is corrupted, It´s from HP 640 G2. I've tried to clear the errors, but with no luck.

TY in advance!

How did you dump your bios chip ! with clip !!

Your serial number

**marksmanx** · 03-24-2023, 04:11 AM

Re: hp 640 g2 password need bios dump

Originally posted by lapfix

How did you dump your bios chip ! with clip !!

Your serial number

Hi, yes I have used a CH341A with a clip. Her is SN: 5CG6246ZVL.

Thank you.

**lapfix** · 03-24-2023, 04:20 AM

Re: hp 640 g2 password need bios dump

Originally posted by marksmanx

Hi, yes I have used a CH341A with a clip. Her is SN: 5CG6246ZVL.

Thank you.

It's a bad idea to use clip , can you dump your bios by desoldering and read it with Support SOIC8-SOP8 !

**marksmanx** · 03-24-2023, 04:25 AM

Re: hp 640 g2 password need bios dump

Unfortunately, I don't have the right tools to desolder the chip. I read the BIOS and verified it. If that is something. Problem is that laptop beeps two times long and two times short, with a blank screen, and the fan is going like crazy.

**lapfix** · 03-24-2023, 04:39 AM

Re: hp 640 g2 password need bios dump

Originally posted by marksmanx

Unfortunately, I don't have the right tools to desolder the chip. I read the BIOS and verified it. If that is something. Problem is that laptop beeps two times long and two times short, with a blank screen, and the fan is going like crazy.

Try read again and make comparaison

**pcconnect** · 03-29-2023, 06:47 AM

Re: hp 640 g2 password need bios dump

hi, can someone clean my password?
thanks

**pcconnect** · 03-29-2023, 07:14 AM

Re: hp 640 g2 need bios dump

Originally posted by user_green

So, I have tried the bios from the Macronix chip on the Winbond chip and everything works fine.

I have attached the BIOS for Hp 640 g2 - CPU 6300u with cleared ME region for anyone who needs it.

tried on my machine and it says 'booting in manufacturing program mode'

**peste** · 03-29-2023, 11:36 PM

Re: hp 640 g2 need bios dump

Originally posted by pcconnect

tried on my machine and it says 'booting in manufacturing program mode'

try..

Attached Files

pssw 640 g2_unlocked.rar (7.14 MB, 35 views)

**pcconnect** · 03-30-2023, 02:31 AM

Re: hp 640 g2 need bios dump

Originally posted by peste

try..

great again, thanks, donated

**Umberto-74** · 06-04-2023, 10:33 AM

Re: hp 640 g2 password need bios dump

Hi, this is my first time writing on the forum
can anyone help me to remove the password for hp 650 g2.
I attach it.
Excuse my bad english

Attached Files

650 g2 password.rar (7.35 MB, 15 views)

**Vesko356** · 06-04-2023, 10:42 AM

Re: hp 640 g2 password need bios dump

Originally posted by Umberto-74

Hi, this is my first time writing on the forum
can anyone help me to remove the password for hp 650 g2.
I attach it.
Excuse my bad english

RULES UPDATE for BIOS requests/offers *AVOID BANNING, READ BEFORE POSTING*
https://www.badcaps.net/forum/showthread.php?t=103570

You MUST:

Read BIOS guides, methods, resources and tools
Try the method at BIOS guides, methods, resources and tools before requesting help
Explain you were not able to succeed with the methods at BIOS guides, methods, resources and tools

.

**Umberto-74** · 06-04-2023, 11:51 AM

Re: hp 640 g2 password need bios dump

I ask for help because I bought the used notebook with this block

**Vesko356** · 06-04-2023, 12:05 PM

Re: hp 640 g2 password need bios dump

Originally posted by Umberto-74

I ask for help because I bought the used notebook with this block

Read BIOS guides, methods, resources and tools everything is explained in detail, including how to do it yourself.

.

hp 640 g2 password need bios dump

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