Bios HP 840 g1 - 6050A2560201-MB-A03

[REpairAT]

Re: HP EliteBook 840 G1 6050A2560201-MB-A03

try..

Thanks, but no success

[Tjaytony]

Re: hp folio 9470m

I have hp 840 g1 that turns on, it shows cmos error. then does not come on after restart. i think it a bios error. here is my bios dump bellow. will be really helpful if anyone could help fix.

[rezarahimi]

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

try with this

tanks end file is working
test 100%ok bro

[Mani .H Soltani]

First things first please random moderator don't delete my thread i know there is another one but that one is dead and bugged and i could not post there so DON'T DELETE ME. Thank you .
Now then i have a Corrupt BIOS for this laptop (Yes i am sure it's a bios problem . like 100%)
Laptop HP 840 G1
PCID : A3009DD10203
Serial : 5CG5150C67
Motherboard : 6050A2560201-MB-A03
Service Tag : Nope
(Dump extracted by RT809F)

Thank you in advance Have a great day .

[SMDFlea]

Thread merged.

[thanasa]

Need bios dump for HP elitebook 840 g1 ,main : 6070B0676403 rev 1.09

[SMDFlea]

Post your bios backup,laptop serial number and explain what the problem is https://www.badcaps.net/forum/troubl...before-posting

[markv81]

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

[Time]

Re: Need bios dump for HP elitebook 840 g1

backup old and try this

thanks man, working perfect

[aworele30]

6050a2559101-mb-a02- hp 840 ok-bios-rom-dump-bin-file-free-download-for-laptop-repair

[Olly B]

Hey, please UNLOCK my LOCKED BIOS.
Administrator Password lost.


Model: HP Elitebook 840 G1
Serial: CNU435BK4
Mainboard: 6050A2560201-MB-A03


Thx

[SMDFlea]

Hey, please UNLOCK my LOCKED BIOS.
Administrator Password lost.

Model: HP Elitebook 840 G1
Serial: CNU435BK4
Mainboard: 6050A2560201-MB-A03
Thx

Try RCUnlocker https://www.badcaps.net/forum/troubl...24#post1807224

[poiler365]

Need Bios Elitebook 840 G1 already tryd all the dumps on here non working for my mobo added my original dump help much aprpeciated.

[peste]

Need Bios Elitebook 840 G1 already tryd all the dumps on here non working for my mobo added my original dump help much aprpeciated.

post the S/N, the motherboard model, etc.

[poiler365]

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

[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.

[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!

[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

[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

[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?

[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]

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

[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..