Bios HP 840 g1 - 6050A2560201-MB-A03

[Norag33]

Re: Bios and Schematic HP 840 g1 - 6050A2560201-MB-A03

try with this

It worked thanks

[Jnmbc20]

HP EliteBook 840 G1 Base Model Notebook PC

Hello hoaca388, your BIOS powered and displayed but it got stuck at HP logo. I tried with different chips and the results were just the same.

[hoaca388]

SMDFlea Kindly if you can assist with cleaning the ME firmware, i would really appreciate. I dont know where i miss the turn, and I'm still reading bios ME clean guidlines between my tight schedules.
Regards

HP EliteBook 840 G1 Base Model Notebook PC

[Jnmbc20]

Thank you very much for your quick response. The dump worked! The only problem left is taking 15 seconds to display after power button press. There is a message: Warning!! Machine not in a committed state.
How do i solve this? I have tried before to work with various NbDmiFit to modify serial numbers and commit a machine with no success.
What is it that Iam not doing right?
Will appreciate any help on that.

SMDFlea Kindly if you can assist with cleaning the ME firmware, i would really appreciate. I dont know where i miss the turn, and I'm still reading bios ME clean guidlines between my tight schedules.
Regards

[SMDFlea]

Clean the ME firmware

[Jnmbc20]

hi try

Thank you very much for your quick response. The dump worked! The only problem left is taking 15 seconds to display after power button press. There is a message: Warning!! Machine not in a committed state.
How do i solve this? I have tried before to work with various NbDmiFit to modify serial numbers and commit a machine with no success.
What is it that Iam not doing right?
Will appreciate any help on that.

[shiyab]

Hello all, I downloaded from this forum BIOS dump and flashed the above laptop which initially wasn't displaying anything. It worked, but after a couple of months it has started a strange problem.
When I press the power button, it comes on but no display, I have to plug in the charger, then pull out, then plug it in again for it to display.
I have included both BIOS and (I guess), EC dump for anyone with a know to look at it. Thanks in advance.
S/n: 5CG5032N6V
P/n: D8R83AV
PCID: A3009DD10303
MB: 6050A2560201-MB-A03

hi try

[peste]

merged post..next time look for a thread with the name and model, motherboard model of the laptop, and post there, if you can't find it, then make a new thread..

[Jnmbc20]

Hello all, I downloaded from this forum BIOS dump and flashed the above laptop which initially wasn't displaying anything. It worked, but after a couple of months it has started a strange problem.
When I press the power button, it comes on but no display, I have to plug in the charger, then pull out, then plug it in again for it to display.
I have included both BIOS and (I guess), EC dump for anyone with a know to look at it. Thanks in advance.
S/n: 5CG5032N6V
P/n: D8R83AV
PCID: A3009DD10303
MB: 6050A2560201-MB-A03

[SMDFlea]

Hello!
I am also attaching a bios below that has a password.
hp 840 g1 serial: cnu8309h9r / product: d1f44av
can someone help me with this bios to remove the password?

thanks

Thread merged. You havn`t posted your backups but theres no need, try the HP unlocking tools, read the password guides

BIOS guides, methods, resources and tools
https://www.badcaps.net/forum/troubl...rces-and-tools

[servicepcpascani@gmail.co]

Hello!
I am also attaching a bios below that has a password.
hp 840 g1 serial: cnu8309h9r / product: d1f44av
can someone help me with this bios to remove the password?

thanks

[peste]

Thanks for moving and sorry, still new to this forum...

I think it's ok..you'll see along the way..on some HP and ASUS models, at the first start after rewriting the bios chip, they pass the DMI information from the I/O chip to the bios on their own..

[harryhirte]

Thanks for moving and sorry, still new to this forum...

[peste]

post merged..next time look for a thread with the name and model, motherboard model,of the laptop and post there, if you can't find it, then make a new thread..

[harryhirte]

With the help of this forum, I was able to restore an old HP Elitebook 840 G1 to life.

What puzzles me a bit is that I did not need to enter all data into the bios-config utility to achive that.
On the initial power-up after replacing the bios chips some scary warning appeared that this was attempt 1 of 10 (max?) and some data was missing or invalid.
However, after a while the message disappeared and this message was displayed:

EC MPM and System MPM Mismatch
System needs to restore system information
... will take a few minutes...

so after this the system boots up normally; I can boot an old win7 installation and proceed to
the HP bios configuration utility.

I did not have all the necessary information so I tried some settings (e.g. SKU, S/N, BUILID, FEATURE BYTE) I found here, but none of this was accepted.

So I pretty much gave up and noticed that after several reboots and power cycles the system behaves normal.
There is a S/N an SKU, but no Feature Byte or Build ID in the System information screen.

I booted several linux distris (Debian, Ubuntu, Mint) and they work without hickups.

So what is the story here?
Is this system fixed or will I have an unpleasant surprise in the future?

I can access all items in the BIOS menu and see no complaints about inconsistent settings.
And the password (the original reason for the change) is gone as well.

Can anybody shine some light on this?

[markv81]

Can you try this script (it's safe and very simple)?
https://github.com/SpookySkeletons/h...os_unlocker.sh
Does it lead to the same result (I mean hashes of unlocked files) as the tool you used?
OK. I patched your dump with the script and it gives the following sha256 hash:

$ sha256sum N25Q128A-markv81-unlocked.bin
a0f484d9bda83ae5578d6a0f8295edb5bd5457ae4629acbca003034f9059b319 N25Q128A-markv81-unlocked.bin​

I will try flash my bios with it and check if it works. I hope your dump is correct, because I have the same n25q128a chip but it's broken so it seems I was unable to get the correct dump.

Hi shiyab, thnx for your help. And does it work with you. best regards Markv81

[shiyab]

Hello,

Can someone remove the password from my dump of a HP Elitebook 840 G1? I tried with RCUnlocker but I get a message saying there is nothing to unlock. Thanks!

backup file error

[Transalp]

Hello,

Can someone remove the password from my dump of a HP Elitebook 840 G1? I tried with RCUnlocker but I get a message saying there is nothing to unlock. Thanks!

[pticme]

Hello to all (hope this is the correct Elitebook 840 G1 Thread)
Can someone help with a bios password unlock on the HP Elitebook 840 G1? after unlucking with hp unlocker i have a blinking power light white / orange.
The chip is a Micron 25Q128A. Attached backup of the Chip and printscreen specs laptop.

Model:HP Elitebook 840 G1
SN: CNU4149HBD

Thanks in advance

Can you try this script (it's safe and very simple)?
https://github.com/SpookySkeletons/h...os_unlocker.sh
Does it lead to the same result (I mean hashes of unlocked files) as the tool you used?
OK. I patched your dump with the script and it gives the following sha256 hash:

$ sha256sum N25Q128A-markv81-unlocked.bin
a0f484d9bda83ae5578d6a0f8295edb5bd5457ae4629acbca003034f9059b319 N25Q128A-markv81-unlocked.bin​

I will try flash my bios with it and check if it works. I hope your dump is correct, because I have the same n25q128a chip but it's broken so it seems I was unable to get the correct dump.

[poiler365]

board- 6050A2560201-MB-A03
Serial -5CG5102VMM