840 G1 BIOS MOD HELP

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  • Zilicon
    Senior Member
    • Nov 2020
    • 142
    • 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
    Tags: None
    • SMDFlea
      Super Moderator
      • Jan 2018
      • 20481
      • 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
          • 142
          • 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

            Comment

            • hoaca388
              Badcaps
              • Jan 2022
              • 11439
              • Viet Nam
              #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.
              ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
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                Comment

                • Zilicon
                  Senior Member
                  • Nov 2020
                  • 142
                  • 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
                      • 142
                      • 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
                          • 2668
                          • 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
                          ----------------------------------------------------------------------------------------------------------------------------------------------------------------------
                          https://www.badcaps.net/donate/
                          ----------------------------------------------------------------------------------------------------------------------------------------------------------------------

                            Comment

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