I have a system/tool I have created that WILL help some of you reset and clear the Password/TPM on select HP Probook/Elitebook laptops.
Please read everything and ask questions. I haven not yet seen a bricked BIOS, but I have see where extra steps are needed to reprogram.
[
INTRO]
My story begins as this:
A few months back, I got an HP Core i7 Probook 6550b from my dad (that he picked up 2nd hand). It had a busted display though. Upon repair, it was found to be BIOS Password protected. And thus began my quest. Long story short here, I did what I set out to do. I was able to reset the TPM, and clear the password. Along the way, I have applied my technique to a few other models and have confirmed successful TPM reset. This is a software based solution. No dis-assembly, or removal of any parts (unless your boot order is locked, then there is a little work to be bone, see end of post)
[
UPDATE BIOS]01-03-2014
If you need to update your BIOS, due to error "BIOS Does not support this feature"
Performed these steps to force a BIOS update
Example here is on a Password Protected Elitebook 8440P.
I have formatted a 1GB USB Thumbdrive to FAT32 non bootable.
I have downloaded bios from HP (F.13 22 Aug 2011) sp54348.exe
I used Universal Extractor to extract all files to directory sp54348
In that file directory I have a file named ROM.CAB.
I open ROM.CAB with winrar and inside I have:
rom.bin
efbios.sig
rom.sig
ver.sig
ver.txt
ver.txt reads
_ROM_ 68CCU v0F.13 08/22/20110x180000 0x00010000
0x280000 0x00080000
0x0 0x00010000
I created the nested directory at the root of USB "Hewlett-Packard\BIOS\Current\"
I extract rom.bin and efbios.sig and place at 'Current' on USB
I rename rom.bin to 68CCU.Bin and efbios.sig to 68CCU.sig (From ver.txt)
I power on laptop holding Win+B
As soon as USB starts to flash I let go of keys.
laptop is black for a moment and reboots a few times
White screen with Code 500
Success BIOS update to F.13 8/22/2011 (Prior was 2009)
[CONFIRMED]
HP 6930P
HP 8440P
HP 8530W
HP ProBook 6730B
HP Probook 4310s
HP Elitebook 8730W (NEED VERSION F13)
http://www.youtube.com/watch?v=beCSzqUyA4A
[
SUPPORTED MODELS]
HP 6550B, HP 2530P, HP 6930P, HP 8530W, HP 8460P, HP 6460B, HP 2230S ,HP 6455B, HP 2730P, HP 8530P, HP 2740P, HP 4310S, HP s4510, HP 6535B, HP 6730B, HP 6735B, HP 8730W, HP 2560P, HP 8560P, HP 8440P, HP 8540W, HP 8560W
If your model is not listed you may experiment with the 'Make All' or SHOTGUN.
[
USE]
To use this system, select your supported hp probook/elitebook model
from the drop-down list. The Serial Number field and UUID Filed will need
to be populated with data. This data needs to be that of your own
laptop's. Booting to this thumbdrive (if this package was created from official .img)
will obtain this information automatically and can be imported.
Once data is entered/imported into the fields, click the 'make key' or 'Make All' button and a file will be
created in the /output folder.
You may then reboot to this thumbdrive and CD to 'output' and run your exe file, or CD to '\output\all'
and run shotgun.bat
[
ABOUT]
Displays this information
[IMPORT]
Booting to this USB Drive will collect information about your and save it to file.
Clicking 'Import' will read the information and fill out the fields automatically.
If you have noot booted this thumbrive, there will be nothing to import.
[
MAKE ALL]
Is your modle not on the list? Use the 'Make All' button to create all posible
keys Using your UUID and SN. This will output them to the '\output\all' directory.
This will also create shotgun.bat file. Boot to this thumbdrive and CD to '\output\all\.
Run shotgun.bat.
[
MAKE KEY]
This makes a single Key based on your SN and UUID for the selected Model.
file will be created in the '\output' folder.
Reboot to this thumbdrive and CD to '\output' and run your exe file.
[
LOCKED BOOT ORDER]
If your BIOS has a locked set boot order, and will only boot to HDD, you need to take a laptop SATA drive and use an external adapter and image the HDD just as you would a USB thumbdrive, Then replace the internal HDD with your newly imaged DOS
boot-able HDD. Powering on the machine will boot to the DOS
environment and run my tools.
My download contains "USB Image Tool" freeware. Use this app to 'Restore' my included image to a USB Thumbdrive or 2.5" SATA HDD attached via USB . If using USB SATA HDD, select the 'Options' tab in USB Image Tool and check 'Show non-removable devices (USB hard disk drives)' to be able to view the HDD in the app. Click your device, and then click 'Restore'. A file dialog will pop up, select the IMG file included with my package. After the process (takes less than a minute), the device is ready to boot.
The USB/SATA adapters are cheep and can be had for 6$ on Ebay. If you don't have 2nd SATA HDD, This too can be purchased on ebay for cheep. (20GB Sata for 10$)
[
DISCLAIMER]
There may be unforeseen negative results stemming from use of this
system. By downloading and using my tools, you agree to use them at
your own risk. This was originally for myself, but I have opened up to
the community. I am not a professional programmer. There is no
guarantee of success using this tool, even on units that are marked as
'confirmed'.
[VIDEOS]
http://www.youtube.com/watch?v=Bs8p927SyVU
https://www.youtube.com/watch?v=VHRcCRi4KZY
https://www.youtube.com/watch?v=AwwpuAs-Ug0
[USAGE]
http://www.youtube.com/watch?v=_2y94A-9K_w
Thank you for looking. I welcome all feedback good or bad, just trying to help people.
