Extract bios password from EliteBook 840 G8 Bios dump, possible?

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  • hardware1
    Badcaps Legend
    • Sep 2021
    • 2916
    • N/A

    #241
    Re: Extract bios password from EliteBook 840 G8 Bios dump, possible?

    Originally posted by hunglaptop1102
    password bios. i have mailed by selling patch hex file but not working.
    Originally posted by MaC_ToC
    Hi all,

    Sorry to butt into your discussion, but I am currently trying to restore the bios of an Elitebook 840 G8 that is locked by a password. I would like to know if I have the wrong chip and if it is 1 or 2.

    Thank you very much for your future help!

    Chip I found: winbond 25q256jven Is this the right chip?

    Is there another one ?
    As you can see in the post #237, the EC Chip named U366, so looking for it and upload it's content here. If we still need the other Chip will inform you.
    ----------------------------------------------------------------------------------------------------------------------------------------------------------------------
    Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests
    all donations are welcome,
    see the donate button at the bottom of the page, or
    >>>>>
    click on this link to donate via PayPal. <<<<<
    Every donation made will go towards server fees and maintenance costs.
    ----------------------------------------------------------------------------------------------------------------------------------------------------------------------

    Comment

    • MaC_ToC
      Member
      • Feb 2023
      • 31
      • France

      #242
      Re: Extract bios password from EliteBook 840 G8 Bios dump, possible?

      Originally posted by hardware1
      As you can see in post #237, the EC chip is called U366, so find it and upload its contents here. If we still need the other chip, we'll let you know.
      Thank you,

      I don't understand why I have to look at post #237?

      So the chip I found is not the right one?

      Thank you

      Comment

      • hardware1
        Badcaps Legend
        • Sep 2021
        • 2916
        • N/A

        #243
        Re: Extract bios password from EliteBook 840 G8 Bios dump, possible?

        Originally posted by MaC_ToC
        Thank you,

        I don't understand why I have to look at post #237?

        So the chip I found is not the right one?

        Thank you
        The man who attach his EC file in Post #237 named the EC Chip U366, so I tell you to see if your Chip is labeled as U366 on the board or not. Otherwise if you can upload the 2 Chips do it. *Chips could be in SOIC/WSON Package*
        ----------------------------------------------------------------------------------------------------------------------------------------------------------------------
        Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests
        all donations are welcome,
        see the donate button at the bottom of the page, or
        >>>>>
        click on this link to donate via PayPal. <<<<<
        Every donation made will go towards server fees and maintenance costs.
        ----------------------------------------------------------------------------------------------------------------------------------------------------------------------

        Comment

        • MaC_ToC
          Member
          • Feb 2023
          • 31
          • France

          #244
          Re: Extract bios password from EliteBook 840 G8 Bios dump, possible?

          ok is this one ?

          So you have to unsolder it. I thought I was going to use a sop8 connector.
          Attached Files

          Comment

          • hardware1
            Badcaps Legend
            • Sep 2021
            • 2916
            • N/A

            #245
            Re: Extract bios password from EliteBook 840 G8 Bios dump, possible?

            Originally posted by MaC_ToC
            ok is this one ?

            So you have to unsolder it. I thought I was going to use a sop8 connector.
            Yes, you should desolder it and use a WSON adapter, or you can use WSON clip (I don't prefer that).
            ----------------------------------------------------------------------------------------------------------------------------------------------------------------------
            Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests
            all donations are welcome,
            see the donate button at the bottom of the page, or
            >>>>>
            click on this link to donate via PayPal. <<<<<
            Every donation made will go towards server fees and maintenance costs.
            ----------------------------------------------------------------------------------------------------------------------------------------------------------------------

            Comment

            • MaC_ToC
              Member
              • Feb 2023
              • 31
              • France

              #246
              Re: Extract bios password from EliteBook 840 G8 Bios dump, possible?

              [QUOTE=hardware1;1213034]Yes, you should desolder it and use a WSON adapter, or you can use WSON clip (I don't prefer that).

              Ok so I desoldered, I managed to read something where I see the model of the computer and the brand does that mean that the dump worked?

              but I was wrong, it's an 845 g8

              Comment

              • hardware1
                Badcaps Legend
                • Sep 2021
                • 2916
                • N/A

                #247
                Re: Extract bios password from EliteBook 840 G8 Bios dump, possible?

                [QUOTE=MaC_ToC;1213914]
                Originally posted by hardware1
                Yes, you should desolder it and use a WSON adapter, or you can use WSON clip (I don't prefer that).

                Ok so I desoldered, I managed to read something where I see the model of the computer and the brand does that mean that the dump worked?

                but I was wrong, it's an 845 g8
                Upload the file and we will see if it's good or not.
                ----------------------------------------------------------------------------------------------------------------------------------------------------------------------
                Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests
                all donations are welcome,
                see the donate button at the bottom of the page, or
                >>>>>
                click on this link to donate via PayPal. <<<<<
                Every donation made will go towards server fees and maintenance costs.
                ----------------------------------------------------------------------------------------------------------------------------------------------------------------------

                Comment

                • MaC_ToC
                  Member
                  • Feb 2023
                  • 31
                  • France

                  #248
                  Re: Extract bios password from EliteBook 840 G8 Bios dump, possible?

                  [QUOTE=hardware1;1213919]
                  Originally posted by MaC_ToC

                  Upload the file and we will see if it's good or not.
                  ok thx
                  Last edited by SMDFlea; 03-26-2023, 01:11 PM.

                  Comment

                  • hardware1
                    Badcaps Legend
                    • Sep 2021
                    • 2916
                    • N/A

                    #249
                    Re: Extract bios password from EliteBook 840 G8 Bios dump, possible?

                    [QUOTE=MaC_ToC;1213924]
                    Originally posted by hardware1

                    ok thx
                    Here's your Unlocked Bios, in the first boot go to Bios Menu and disable security options (Default).
                    If the Password still present, upload the other Chip (Main).

                    Your device is (HP EliteBook 845 G8) according to your Serial Number (5CG1511WMY).
                    Last edited by SMDFlea; 03-26-2023, 01:11 PM.
                    ----------------------------------------------------------------------------------------------------------------------------------------------------------------------
                    Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests
                    all donations are welcome,
                    see the donate button at the bottom of the page, or
                    >>>>>
                    click on this link to donate via PayPal. <<<<<
                    Every donation made will go towards server fees and maintenance costs.
                    ----------------------------------------------------------------------------------------------------------------------------------------------------------------------

                    Comment

                    • MaC_ToC
                      Member
                      • Feb 2023
                      • 31
                      • France

                      #250
                      Re: Extract bios password from EliteBook 840 G8 Bios dump, possible?

                      [QUOTE=hardware1;1213926]
                      Originally posted by MaC_ToC

                      Here's your Unlocked Bios, in the first boot go to Bios Menu and disable security options (Default).
                      If the Password still present, upload the other Chip (Main).

                      Your device is (HP EliteBook 845 G8) according to your Serial Number (5CG1511WMY).
                      Thank you very much!!! I'll keep you posted!
                      Last edited by MaC_ToC; 02-26-2023, 12:18 PM.

                      Comment

                      • MaC_ToC
                        Member
                        • Feb 2023
                        • 31
                        • France

                        #251
                        Re: Extract bios password from EliteBook 840 G8 Bios dump, possible?

                        It works great!!! thank you!!! my 1st pc with hot air desoldering!!!

                        I have to do n HP Zbook 15 where do I go?

                        Comment

                        • JAFATAGNA
                          Senior Member
                          • Apr 2016
                          • 58
                          • MARRAKECH

                          #252
                          Re: Extract bios password from EliteBook 840 G8 Bios dump, possible?

                          Can anyone help me to unlock THIS BIOS 840 G8
                          Last edited by JAFATAGNA; 02-27-2023, 10:48 AM.

                          Comment

                          • MaC_ToC
                            Member
                            • Feb 2023
                            • 31
                            • France

                            #253
                            Re: Extract bios password from EliteBook 840 G8 Bios dump, possible?

                            Originally posted by JAFATAGNA
                            Can anyone help me to unlock THIS BIOS 840 G8
                            tell us already what you can do because the only solution is to give a dump of the bios

                            Comment

                            • MaC_ToC
                              Member
                              • Feb 2023
                              • 31
                              • France

                              #254
                              Re: Extract bios password from EliteBook 840 G8 Bios dump, possible?

                              [QUOTE=hardware1;1213926]
                              Originally posted by MaC_ToC

                              Here is your Unlocked Bios, on first boot go into the Bios menu and uncheck the security options (Default). If the password is still there, upload the other chip (Main).

                              Your device is (HP EliteBook 845 G8) according to the serial number (5CG1511WMY)
                              Since the flash I have a problem with the battery fault code and the battery in windows is either at 100% or 0%. Before it worked fine.

                              Can this be due to the flash?

                              Comment

                              • hardware1
                                Badcaps Legend
                                • Sep 2021
                                • 2916
                                • N/A

                                #255
                                Re: Extract bios password from EliteBook 840 G8 Bios dump, possible?

                                Originally posted by MaC_ToC

                                Since the flash I have a problem with the battery fault code and the battery in windows is either at 100% or 0%. Before it worked fine.

                                Can this be due to the flash?
                                Try new OS, Bios update or another battery to know where's the problem.
                                ----------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests
                                all donations are welcome,
                                see the donate button at the bottom of the page, or
                                >>>>>
                                click on this link to donate via PayPal. <<<<<
                                Every donation made will go towards server fees and maintenance costs.
                                ----------------------------------------------------------------------------------------------------------------------------------------------------------------------

                                Comment

                                • jm801
                                  Banned
                                  • Apr 2020
                                  • 123
                                  • monterrey

                                  #256
                                  Re: Extract bios password from EliteBook 840 G8 Bios dump, possible?

                                  Could you help me to unlock this bios has absolute
                                  Last edited by SMDFlea; 03-26-2023, 01:11 PM.

                                  Comment

                                  • chobio
                                    New Member
                                    • Feb 2021
                                    • 4
                                    • japan

                                    #257
                                    Re: Extract bios password from EliteBook 840 G8 Bios dump, possible?

                                    Originally posted by jm801
                                    Could you help me to unlock this bios has absolute
                                    try
                                    Last edited by SMDFlea; 03-26-2023, 01:11 PM.

                                    Comment

                                    • jm801
                                      Banned
                                      • Apr 2020
                                      • 123
                                      • monterrey

                                      #258
                                      Re: Extract bios password from EliteBook 840 G8 Bios dump, possible?

                                      Originally posted by chobio
                                      try

                                      it won't let me deactivate absolut

                                      Comment

                                      • jm801
                                        Banned
                                        • Apr 2020
                                        • 123
                                        • monterrey

                                        #259
                                        Re: Extract bios password from EliteBook 840 G8 Bios dump, possible?

                                        Originally posted by jm801
                                        it won't let me deactivate absolut
                                        I also leave ec in case it takes care to remove absolute
                                        Last edited by SMDFlea; 03-26-2023, 01:11 PM.

                                        Comment

                                        • JAFATAGNA
                                          Senior Member
                                          • Apr 2016
                                          • 58
                                          • MARRAKECH

                                          #260
                                          Re: Extract bios password from EliteBook 840 G8 Bios dump, possible?

                                          Can anyone help me to unlock THIS BIOS 840 G8

                                          Comment

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