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Don't know if this is the right forum but.. can someone help me modify the files?

 

here's the bios that i flashed: http://h20000.www2.hp.com/bizsupport/TechS...Item=ob-32938-1

 

Current: Intel 2100

PCI\VEN_8086&DEV_1043&SUBSYS_25278086&REV_04

 

Planned: Intel 2200

PCI\VEN_8086&DEV_4220&SUBSYS_27418086&REV_05

Here's how I changed my Compaq Presario X1000 bios whitelist:

 

I. Getting the Rom files

1. Downloaded the latest bios

2. Run the exe file but didn't apply it

3. Went to C:\swsetup\sp30915\ and extracted 0860F55.cab

4. Two files were extracted: rom.bin and rom.sig

 

II. Editing the Rom files

1. Opened rom.bin using a hexeditor

2. Searched for "43 10 86 80" --> PCI\VEN_8086&DEV_1043&SUBSYS_25278086

 

Only found one: 43 10 86 80 22 25

 

3. Changed it to: "20 42 86 80 41 27" --> PCI\VEN_8086&DEV_4220&SUBSYS_27418086

4. Saved the file

 

III. Making the rom.cab

1. Used cabpack to make a cabinet archive that contains rom.bin

 

From this point, I already patched the HPQFlash.exe and renamed it to HPQFlashNoCRC.exe.

Then, I placed the rom.cab together with HPQFlashNoCRC.exe in a directory. Before, I flashed it, I flashed the original (unmodified) bios using HPQFlashNoCRC.exe and it worked. After the reboot, I flashed the modified bios and received the error. I then changed my wireless lan card and was able to boot again.

 

NOTE: Just in case something goes wrong, make sure that you have recovery disk or something. *** I take no responsibility if anything goes wrong ***

HPQFlashNoCRC.zip

  • 2 months later...
  • 8 months later...

Sure, it's from 2005, its an old version. It probably works only on WinXP and with the BIOS files from that era. audioboi got lucky - he needed to change just the subsys ID and the device ID ... and in his case he did not have to correct any bytes for a CRC check etc...

 

In HPQFlash (that old version) he changed 00008BF885FF7511 to 00008BF885FFEB11

post-454959-1247347784_thumb.jpg which is the simplest cracks there is... too bad BIOSes requre much more skill :)

  • 5 months later...

Hello all.

My english is bad :( I come form poland.

I have problem on my compaq 6720s. (intel graphic)

I download bios find rom.cam extract and using hex editor on file rom.bin

But i not have a information what i must change to using another wifi card.

Someone can tell me?

Thanx for time on my post and i sorry for my english...

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