HP 850 G3 BIOS dump, view ACPI tables?

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  • dualtrace
    New Member
    • Jan 2022
    • 9
    • UK
    #1

    HP 850 G3 BIOS dump, view ACPI tables?

    I have a 16MB data dump from a desoldered corporate HP Elitebook 850 G3 main BIOS chip, taken using a CH341a programmer. This dump contains a password I have no access to.

    I have a fresh BIOS chip, loaded with a clean BIOS for the matching product ID and motherboard number.

    I'd like to find and save any SLIC &/or MSDM, ACPI tables contained in the dump from the desoldered chip so that I can if necessary, modify the fresh BIOS chip's contents to preserve the machine's existing Windows 11 installation's licensing/activation etc.

    Searching the dump using just a plain hex editor, I can't locate anything that shows where these tables are stored.

    I did see MSDM and SLIC tables using acpidump on the running machine before desoldering, just, no idea where the info resides inside the chip dump.

    What tools would I be best using for this?
    Last edited by SMDFlea; 01-10-2022, 01:46 AM. Reason: 850 G3
    Tags: None
    • zyze
      New Member
      • Jul 2020
      • 4
      • lietuva
      #2
      Re: HP 850 G3 BIOS dump, view ACPI tables?

      hello Maybe someone can help me. I have a hp 850 g3 and I made a mistake while reading the bios file. I did not save the scanned file in the trash. And then I deleted it. Now I try many bin files and none of them work. When I turn on the headset spins loudly and the screen is black.
      how can i restore the bios file? Thank you
      Last edited by zyze; 02-16-2023, 12:05 PM.

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