840 G1 BIOS MOD HELP

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  • Zilicon
    Senior Member
    • Nov 2020
    • 152
    • Nigeria

    #1

    840 G1 BIOS MOD HELP

    Greetings everyone.
    Please i need help in building a flashable BIOS firmware from exe executable.
    please, i need a tutorial on how i can achieve that.

    I'm currently working on Elitebook 840 G1. the user forced to shutdown when the PC was updating. the pc does not recognized HDD or NGFF since then. i've fetch various BIOS dump but none helped.

    i want to try to build the firmware from the update.
    I have fetched the updated file and extracted it with 7-zip, the bin file size is 8mb, meanwhile the BIOS image file is 16mb.

    the extracted file did not contain the ME region. this is where i need help so that i can have the total 16mb flashable file.

    i will appreciate learning how to do it. any tutorial will be appreciated.

    thank you all
  • SMDFlea
    Super Moderator
    • Jan 2018
    • 22084
    • UK

    #2
    Look for another bios chip, it might be on the other side of the board. When you find it post your backup and Type the laptop serial number, full name and model, motherboard model, etc.

    read the forum rules..https://www.badcaps.net/forum/troubl...before-posting

    All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

    Comment

    • Zilicon
      Senior Member
      • Nov 2020
      • 152
      • Nigeria

      #3
      Originally posted by SMDFlea
      Look for another bios chip, it might be on the other side of the board. When you find it post your backup and Type the laptop serial number, full name and model, motherboard model, etc.

      read the forum rules..https://www.badcaps.net/forum/troubl...before-posting
      Thank you so much SMDFlea.

      There is another BIOS chip, 2MB, beside the main BIOS. Attached are the backups of the file and the backup of the main BIOS.

      However, I can't vouch for the originality of the backup file, because the PC has been taken to at least one repairer before I laid my hands on it.

      SN: 5CG51239VX
      full name: HP EliteBook 840 G1
      model: Elitebook 840 G1
      MoBo: 6050A2559101-MB-A03
      PCID: A3009DD10203
      Product: G8J02US#ABA
      Attached Files

      if you find these attachements useful please consider making a small donation to the site

      Comment

      • hoaca388
        Badcaps
        • Jan 2022
        • 12396
        • Socialist Republic of Vietnam

        #4
        Originally posted by Zilicon

        Thank you so much SMDFlea.

        There is another BIOS chip, 2MB, beside the main BIOS. Attached are the backups of the file and the backup of the main BIOS.

        However, I can't vouch for the originality of the backup file, because the PC has been taken to at least one repairer before I laid my hands on it.

        SN: 5CG51239VX
        full name: HP EliteBook 840 G1
        model: Elitebook 840 G1
        MoBo: 6050A2559101-MB-A03
        PCID: A3009DD10203
        Product: G8J02US#ABA
        I thought EC was an 8MB or 16MB file, not 2MB. Maybe you misread the chip.
        ↵

        Any donations to badcaps are welcome, click this link to donate . Thanks to all the supporters
        ​https://www.badcaps.net/donate

        Comment

        • Zilicon
          Senior Member
          • Nov 2020
          • 152
          • Nigeria

          #5
          Originally posted by hoaca388

          I thought EC was an 8MB or 16MB file, not 2MB. Maybe you misread the chip.
          I made several backups, all were the same size.
          the size also coincide with the bios dump+EC that I found on the net- 16mb and 2mb respectively

          Comment

          • Zilicon
            Senior Member
            • Nov 2020
            • 152
            • Nigeria

            #6
            Greetings everyone,
            please, i still need help for the above. I've not been able to figure it out yet.

            Comment

            • volinakis
              Badcaps Legend
              • Jan 2021
              • 2875
              • N/A

              #7
              Originally posted by Zilicon
              Greetings everyone,
              please, i still need help for the above. I've not been able to figure it out yet.
              try
              Attached Files

              if you find these attachements useful please consider making a small donation to the site

              ----------------------------------------------------------------------------------------------------------------------------------------------------------------------
              https://www.badcaps.net/donate/
              ----------------------------------------------------------------------------------------------------------------------------------------------------------------------

              Comment

              • Zilicon
                Senior Member
                • Nov 2020
                • 152
                • Nigeria

                #8
                Originally posted by volinakis

                try
                just seeing this, thank you so much. i will try and revert

                Comment

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