HP 840 G7 Bios Password Removal

[tigertec]

Please help,
Build Id:

BID=20WWCMBT601#SABA#DABA

Featurebyte: 3X476J6S6b7B7H7M7Q7W7m7saBaEapaqauawbUcA,dUdpdqeMfPguhKhkjhk8mEmV.dD
Serial: 5cg1043x42

[shiyab]

Please help,
Build Id:

BID=20WWCMBT601#SABA#DABA

Featurebyte: 3X476J6S6b7B7H7M7Q7W7m7saBaEapaqauawbUcA,dUdpdqeMfPguhKhkjhk8mEmV.dD
Serial: 5cg1043x42

flash 16 MB

[tigertec]

That worked, but turns out that I have autopilot on as well. Can you help me?

[tigertec]

Help?

[qayyum786]

Help?

Try

[servis_null]

Hello everyone

I need help removing bios pass on HP 840 G7..

HP EliteBook 840 G7
ProdID 8PZ98AV
SN# 5CG1354HLC

Main and EC bios attached.

Thank you

[shiyab]

Hello everyone

I need help removing bios pass on HP 840 G7..

HP EliteBook 840 G7
ProdID 8PZ98AV
SN# 5CG1354HLC

Main and EC bios attached.

Thank you

hi try unlock

[servis_null]

hi try unlock

Hi, this was fast

Will try it later. Did DMI data get preserved? SN and stuff?

[servis_null]

hi try unlock

With your dump I got error "HP Endpoint Security Controller Problem"

[Stefan Steff]

With your dump I got error "HP Endpoint Security Controller Problem"

Yes you got this error because didn't reset security options to default on very first boot.
Write this main bios now and enter this DMI data:

Description: HP EliteBook 840 G7 Notebook
Serial Number: 5CG1354HLC
Product Number: 8PZ98AV
Board CT Number: PJSCQ00WBFM4L1
BuildId(BID): 20WWCMDT601#SBED#DBED
Feature Byte: 3X476J6S6b7B7H7M7Q7W7m7saBaEapaqauawbUbhcAdUdpdqfPguhKhkjhk8mEnV.eT
MAC Address: E0-70-EA-38-5D-51

[servis_null]

Yes you got this error because didn't reset security options to default on very first boot.
Write this main bios now and enter this DMI data:

Description: HP EliteBook 840 G7 Notebook
Serial Number: 5CG1354HLC
Product Number: 8PZ98AV
Board CT Number: PJSCQ00WBFM4L1
BuildId(BID): 20WWCMDT601#SBED#DBED
Feature Byte: 3X476J6S6b7B7H7M7Q7W7m7saBaEapaqauawbUbhcAdUdpdqfPguhKhkjhk8mEnV.eT
MAC Address: E0-70-EA-38-5D-51

Where should I add DMI data?

[Stefan Steff]

Where should I add DMI data?

With HP DMI Tool NBDmiFit

Read here how to use it : https://www.badcaps.net/forum/troubl...ifit#post63219

...or from Windows you can use this tool from HP : https://ftp.ext.hp.com/pub/caps-soft...it/HP_BCU.html

I prefer this second method...watch here a tutorial : https://youtu.be/kQJuJZNOuXg?si=cfsrCtU8YT6KqrT4 and you can skip the partsurfer part because I give you all the information you need.

Good Luck !

[servis_null]

With HP DMI Tool NBDmiFit

Read here how to use it : https://www.badcaps.net/forum/troubl...ifit#post63219

...or from Windows you can use this tool from HP : https://ftp.ext.hp.com/pub/caps-soft...it/HP_BCU.html

I prefer this second method...watch here a tutorial : https://youtu.be/kQJuJZNOuXg?si=cfsrCtU8YT6KqrT4 and you can skip the partsurfer part because I give you all the information you need.

Good Luck !

I tought there is some "special" way.. I am familiar with HP DMI fit tool..

Thank you very much

[servis_null]

With HP DMI Tool NBDmiFit

Read here how to use it : https://www.badcaps.net/forum/troubl...ifit#post63219

...or from Windows you can use this tool from HP : https://ftp.ext.hp.com/pub/caps-soft...it/HP_BCU.html

I prefer this second method...watch here a tutorial : https://youtu.be/kQJuJZNOuXg?si=cfsrCtU8YT6KqrT4 and you can skip the partsurfer part because I give you all the information you need.

Good Luck !

Hello,

I got same error after flashing your file.. After flash, first boot -> bios -> securtity tab -> reset to default -> save and exit.. and error still there.

[Stefan Steff]

Hello,

I got same error after flashing your file.. After flash, first boot -> bios -> securtity tab -> reset to default -> save and exit.. and error still there.

OK, then we use bigger cannons )
Write this main bios and provide feedback.

[servis_null]

OK, then we use bigger cannons )
Write this main bios and provide feedback.

It starts normal without error and asks for POST password.. like I flashed back original file.

[Stefan Steff]

It starts normal without error and asks for POST password.. like I flashed back original file.

Then the EC chip content is not patched...probably you wrote back the original...
Use the shiyabs EC content from post #7 and the last main bios I provided and then there will be no password anymore.
I made a lot of HP 840 G5 G6 G7 with this method and always had worked from first attempt (with or without Endpoint Security error...)

[servis_null]

Then the EC chip content is not patched...probably you wrote back the original...
Use the shiyabs EC content from post #7 and the last main bios I provided and then there will be no password anymore.
I made a lot of HP 840 G5 G6 G7 with this method and always had worked from first attempt (with or without Endpoint Security error...)

OK, will try that later. Thnx for now.

Funny thing that happened yesterday, I got main bios from a friend, flashed it and password was gone. But bios acted weird, I could enter bios, change setting, but when I wanted to add admin and POST password it would accept input but after restart it would not ask for that new password, it would just continue to Windows.. I didn't want to bother and I continue with Win install and stuff. After like 20-30 reboots.. it went back to lock state. wtf?

[servis_null]

Then the EC chip content is not patched...probably you wrote back the original...
Use the shiyabs EC content from post #7 and the last main bios I provided and then there will be no password anymore.
I made a lot of HP 840 G5 G6 G7 with this method and always had worked from first attempt (with or without Endpoint Security error...)

Hey.. update..

I did flash files as you mentioned and I got error again..

Procedure I did:

1. flashed both eeprom and solder them
2. first boot - trying to enter bios - got error "Endpoint Security controller problem" - don't let me to bios (in bottom left corner says "Entering bios..") - notebook reboots..
3. second boot - same as first
4. third boot - shows error "Endpoint Security controller problem" but after pressing OK it lets me to bios, reset security to default and bios to default..
5. after exiting bios shows error again but it boots to Windows
6. later entered bios and disable everything regarding security: TPM, Secure boot, HP Sure secure, all related to security and now it doesn't show error "Endpoint Security controller problem" (don't know if this is smart)

Regards

[Stefan Steff]

Hey.. update..

I did flash files as you mentioned and I got error again..

Procedure I did:

1. flashed both eeprom and solder them
2. first boot - trying to enter bios - got error "Endpoint Security controller problem" - don't let me to bios (in bottom left corner says "Entering bios..") - notebook reboots..
3. second boot - same as first
4. third boot - shows error "Endpoint Security controller problem" but after pressing OK it lets me to bios, reset security to default and bios to default..
5. after exiting bios shows error again but it boots to Windows
6. later entered bios and disable everything regarding security: TPM, Secure boot, HP Sure secure, all related to security and now it doesn't show error "Endpoint Security controller problem" (don't know if this is smart)

Regards

Disabling everything security related setting is not recommended...
I made a new (last attempt) bios pack with EC and MAIN.
Try to flash just the main maybe works because the EC is the same.
At first boot enter to Security settings and reset to default. Very important!
Then enter DMI data.