HP Elitebook 840 G6 bios password

[mp3boy]

Re: Hp elitebook 840 g6 locked bios

I am using this method on my own 840 G6. I have successfully removed the password by replicating the changes made in the 32MB unlock file, but HP BCU tool won't program the Product Name and Feature Byte.

The system is in MPM unlocked mode and I have set the CT, Serial and Build ID using HP BCU.

WnDMIFit gives a Board Not Supported error and runs in read-only mode.

Any advice please?

Problem solved, badly formatted text file, BCU works fine for all fields.

Notes in case it helps anyone:

Much easier to backup and restore DMI with BCU if the laptop is bootable into Windows. Run the following in administrative command prompt before and after resetting password:

before flashing any files!!:
BIOSConfigurationUtility64.exe /Get:data.txt
after unlock:
BIOSConfigurationUtility64.exe /Set:data.txt

power off, battery pull, PoE pi3 with pogo probe worked for read/write 32MB chip without disassembly/soldering. pi4 usb-c did not work - mismatched reads.

to make unlock file in hex editor (this will erase DMI data and put laptop in MPM mode):

change 3F (?) to 3C (<) after the following strings:
52 00 65 00 63 00 6F 00 76 00 65 00 72 00 79 00 53 00 74 00 61 00 74 00 75 00 73 (Recovery Status)
49 00 44 00 45 00 4B 00 50 00 75 00 62 00 43 00 52 00 43 (IDEKPubCRC)
6F 00 6D 00 6D 00 6F 00 6E 00 53 00 65 00 74 00 75 00 70 (CommonSetup)
44 00 65 00 76 00 69 00 63 00 65 00 43 00 6F 00 6E 00 66 00 69 00 67 00 46 00 6C 00 61 00 67 00 73 (DeviceConfigFlags)
and replace
26 48 00 70 00 4D 00 70 00 6D 00 00 00 00 00 00 00 00 00 00 00 (HP MPM) with
26 48 00 70 00 4D 00 70 00 6D 00 00 00 00 23 01 00 02 00 00 00

start laptop, reboots numerous times, use F10 and apply factory defaults, save and exit
F10 again, go to Security tab and reset bios security to factory defaults (this step asks for a password if the above step is not done)

[jcc2505]

Re: HP Elitebook 840 G6 bios password

Hi, can help to unlock this please, i try with RCunlocker but not remove lock

[Vesko356]

Re: HP Elitebook 840 G6 bios password

Hi, can help to unlock this please, i try with RCunlocker but not remove lock

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

Provide the full machine model number, serial number (or Service tag, SNID) and the board model number (see https://www.badcaps.net/forum/showthread.php?t=88758 )

.

[VIEN]

Re: HP Elitebook 840 G6 bios password

Need help with password removal. attached both dumps.
Is it not possible with RCunlocker to do the dual bios .
only 1 bios will drag into the unlocker successfu

[SMDFlea]

Re: HP Elitebook 840 G6 bios password

Need help with password removal. attached both dumps.
Is it not possible with RCunlocker to do the dual bios .
only 1 bios will drag into the unlocker successfu

Read post #103. SERIAL NUMBER !!!

[abrahim110]

hp 840 G6 i7 endpoint security controller problem

hi i try to unlock the bios on HP 840 Genration 6 i7
i modifid the 16mb CHIIP but after is coming always the Eror hp endpoint security controller problem
i try to install clean dump for 32MB too but still same can anybody help me
i post the original Dump file down .
Thanks

[SMDFlea]

Re: hp 840 G6 i7 endpoint security controller problem

hi i try to unlock the bios on HP 840 Genration 6 i7
i modifid the 16mb CHIIP but after is coming always the Eror hp endpoint security controller problem
i try to install clean dump for 32MB too but still same can anybody help me
i post the original Dump file down .
Thanks

Read post #103 .

.

[rex98]

Re: HP Elitebook 840 G6 bios password

https://www.badcaps.net/forum/showpo...&postcount=346

if you have problem with hp endpoint security controller and password lock use this main and ec it works tested.

[kamkooltech]

Re: HP Elitebook 840 G6 bios password

Help me to unlock this password

[SMDFlea]

Re: HP Elitebook 840 G6 bios password

Help me to unlock this password

Read post #105

.

[kamkooltech]

Re: HP Elitebook 840 G6 bios password

Read post #105

.

i will check, thanks bro

[roli1980]

hi everyone , after removing bios password im confronted with a "endpoint security controller problem"
can anyone help me with a good unlocked flash
thanks
6050A3022501-MB-A01 - 5CG0360FPX

[binoyroy]

try this one.

[roli1980]

no still the same error

[hoaca388]

hi everyone , after removing bios password im confronted with a "endpoint security controller problem"
can anyone help me with a good unlocked flash
thanks
6050A3022501-MB-A01 - 5CG0360FPX

Serial number ?

[roli1980]

5CG0360FPX

[hoaca388]

hi everyone , after removing bios password im confronted with a "endpoint security controller problem"
can anyone help me with a good unlocked flash
thanks
6050A3022501-MB-A01 - 5CG0360FPX

CCCC

[mesta83]

Hi everyone, I have a 840 G6, SN: 5CG9435S8T that need unlocking. thanks.

[minhdigital]

Hi everyone, I have a 840 G6, SN: 5CG9435S8T that need unlocking. thanks.

Send to you, Try

[mesta83]

Still has admin password