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Old 02-07-2020, 07:52 AM   #1
kesmeseker
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Default Hp ellİtebook 840 g5 bios password

There is a password in bios. can you help me please
bios 32mb 25q256

https://dosya.co/xybze6qn0n9d/ellite...40_g5.rar.html
rar pas . 1
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Old 02-07-2020, 08:20 AM   #2
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Default Re: Hp ellİtebook 840 g5 bİos password

.

Last edited by asem18; 02-07-2020 at 08:31 AM..
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Old 02-07-2020, 08:25 AM   #3
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Default Re: Hp ellİtebook 840 g5 bİos password

1
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Old 02-07-2020, 10:15 AM   #4
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Default Re: Hp ellİtebook 840 g5 bİos password

Quote:
Originally Posted by kesmeseker View Post
There is a password in bios. can you help me please
bios 32mb 25q256

https://dosya.co/xybze6qn0n9d/ellite...40_g5.rar.html
rar pas . 1
Try and leave feedback. Thanks to RethoricalCheese for the tool.

>>>Link to unlocked BIOS file<<<
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Old 02-07-2020, 10:18 AM   #5
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Default Re: Hp ellİtebook 840 g5 bİos password

thanks... vesko356
not working 33mb.
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Old 02-07-2020, 10:49 AM   #6
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Default Re: Hp ellİtebook 840 g5 bİos password

Quote:
Originally Posted by kesmeseker View Post
thanks... vesko356
not working 33mb.
What do you mean???
Your dump is 32.0 MB (32768 KB), and the unlocked dump is exactly the same size.

Last edited by Vesko356; 02-07-2020 at 10:55 AM..
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Old 02-07-2020, 10:57 AM   #7
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Default Re: Hp ellİtebook 840 g5 bİos password

yes not working
but RethoricalCheese for the tool working.
tkans vesko
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Old 02-07-2020, 11:26 AM   #8
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Default Re: Hp ellİtebook 840 g5 bİos password

Quote:
Originally Posted by kesmeseker View Post
yes not working
but RethoricalCheese for the tool working.
tkans vesko
RethoricalCheese is the guy created the tool for removing the password from the locked bios.
So the file is OK? Everything working - no password anymore?
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Old 02-27-2020, 03:47 PM   #9
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Default Bios elitebook 840 g5

Hello,
I think i have read wrong my bios
pc is elitebook 840 g5

i have desolder MX25L25673G read by tl866IIplus
I have tried RethoricalCheese tool no succes
put back read file no succes

Somebody can help me please ?
Attached Files
File Type: zip read4 ptog dif.zip (10.10 MB, 35 views)
File Type: zip read4 ptog dif_unlocked.zip (10.10 MB, 39 views)
File Type: zip read5.zip (10.10 MB, 30 views)
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Old 02-28-2020, 06:03 AM   #10
peste
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Default Re: Bios elitebook 840 g5

try .. if it doesn't go read again and put the bios here ..
Attached Files
File Type: rar Elitebook 840 G5.rar (8.87 MB, 81 views)
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Old 02-28-2020, 11:08 AM   #11
tsitsi
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Default Re: Bios elitebook 840 g5

thx, but i solved with bios from internet
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Old 08-28-2020, 12:37 PM   #12
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Default Hp elitebook 840 g5 bios clean

Hi guys
could anyone clean the bios password from this bin file, please?
Many thanks
Attached Files
File Type: rar 840g5.rar (8.89 MB, 168 views)
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Old 08-28-2020, 01:29 PM   #13
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Default Re: Hp elitebook 840 g5 bios clean

Quote:
Originally Posted by electroelef View Post
Hi guys
could anyone clean the bios password from this bin file, please?
Many thanks
Try
Attached Files
File Type: rar 840g5_unlocked.rar (8.89 MB, 319 views)
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Old 08-29-2020, 07:18 AM   #14
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Default Re: Hp elitebook 840 g5 bios clean

works like a chaarm.
Thank you very much
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Old 11-21-2020, 05:22 AM   #15
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Default HP Elitebook 840 G5 Admin Bios PW Removal

Hi everyone,

I've got an HP Elitebook 840 G5 laptop with admin bios password.
I have managed to get a dump of the bios (I think) and have tried all the tools I can find on this site (and others) but am not having any luck.

I have tried the "HP BIOS unlock tool" sticky'd in this forum but unable to get that to run at all.
I have tried using the HP BIOS Password Removal Tool, but I am not able to get the USB to boot on my laptop.

Can someone please remove the admin password for me?

Thanks
Attached Files
File Type: zip HP Elitebook 840 G5 Admin PW Bios.zip (10.54 MB, 97 views)
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Old 11-21-2020, 05:32 AM   #16
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Default Re: HP Elitebook 840 G5 Admin Bios PW Removal

Quote:
Originally Posted by AudioGuy88 View Post
Hi everyone,

I've got an HP Elitebook 840 G5 laptop with admin bios password.
I have managed to get a dump of the bios (I think) and have tried all the tools I can find on this site (and others) but am not having any luck.

I have tried the "HP BIOS unlock tool" sticky'd in this forum but unable to get that to run at all.
I have tried using the HP BIOS Password Removal Tool, but I am not able to get the USB to boot on my laptop.

Can someone please remove the admin password for me?

Thanks
you still have a bios chip on the board, post its contents ..
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Old 11-21-2020, 05:45 AM   #17
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Default Re: HP Elitebook 840 G5 Admin Bios PW Removal

Quote:
Originally Posted by peste View Post
you still have a bios chip on the board, post its contents ..
Yes the chip is still on the board. I was able to solder wires to it and used the CH341 to get a dump of it.
I don't understand what you mean by post its contents. I have posted the dump of the chip as an attachment to this post.
Please clarify what you mean?
This is my 2nd request, but will be first time I will be writing back to the chip.
Thanks
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Old 11-21-2020, 06:10 AM   #18
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Default Re: HP Elitebook 840 G5 Admin Bios PW Removal

Please ignore this request. I have got it working.
For some reason the HP Bios Unlock Tool, did not run on my computer.
I ran it on a different computer, and it worked. It gave me an _unlcoked_ file, which I wrote back to the chip, and I am now able to get into the BIOS!
Very happy. This is the first bios password removal I have done.
Thanks to this site and all the contributors. You guys are doing a great thing!
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Old 12-03-2020, 04:14 AM   #19
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Default Re: Hp elitebook 840 g5 bios clean

Hello
Can somebody assist me as to which chip is to be read for removing the BIOS password on this model?
I see here Winbond 25Q256JVEQ , is this the right one or not ? and how would you interface it without desoldering if you did it already?

I have full package of RT809H with 52 pieces, but I am thinking of extending some wires directly from the SOP8 SOIC8 clipper to the pins on the board without desoldering.

And lastly after making backup has somebody tried Mazif's tool to remove the password as the BIOS seems to be the same as in older models of Elitebooks?

thanks
Attached Images
File Type: jpg 1606986977619.jpg (527.9 KB, 152 views)
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Old 12-03-2020, 09:13 AM   #20
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Default Re: Hp elitebook 840 g5 bios clean

Mazzif tool doesn't work since 8470p and later. My tool does but it varies on 840 G5 right now. Make copies of both chips and upload them to me.

You could try soldering. If it doesn't work straight away, you could try removing batteries, attaching charger, then turning laptop on, go to F10 screen, turn laptop off again but do not remove charger. Attach programmer to wires and try to read. If this doesn't work aswell then remove charger and try again. If still nothing then you need to desolder them.

But I suggest to invest in a hot air station like yihua 2008D or similar. They are cheap but quite good. Makes the job way easier.
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