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    Re: HP BIOS unlock tool

    hi,
    HP 820g4 i5-7200u
    try with HPUnlocker and caplock & numlk led x5 and fan max.
    Attached Files

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      Re: HP BIOS unlock tool

      7e gen no succes by unlock with the hp unlocker

      Comment


        Re: HP BIOS unlock tool

        Originally posted by danito View Post
        hi,
        HP 820g4 i5-7200u
        try with HPUnlocker and caplock & numlk led x5 and fan max.

        Try this and let me know.
        Attached Files

        Comment


          Re: HP BIOS unlock tool

          Originally posted by RethoricalCheese View Post
          Try this and let me know.
          working
          thx

          Comment


            Re: HP BIOS unlock tool

            Originally posted by Nico Latour View Post
            7e gen no succes by unlock with the hp unlocker

            This will be fixed in the next version.

            Comment


              Re: HP BIOS unlock tool

              Thank you very much RethoricalCheese! I was able to use your program successfully on 650 G2, 8470P and 840 G3

              On the 840 G3 there were 2 chips, a Winbond and an MXIC. I first patched the Winbond dump but there was still the password, then I patched the MXIC dump and it was OK.

              Thank you very much for developing and making this program available!

              Comment


                Re: HP BIOS unlock tool

                Just wanted to give a huge thanks to the OP for this utility. Successfully removed bios password from an Elitebook 820 G2.

                Bios chip is a Macronix 25L12873F which is not technically supported by flashrom, yet reading and writing both worked by using the MX25L12835F/MX25L12845E/MX25L12865E option.

                Comment


                  Re: HP BIOS unlock tool

                  Originally posted by SRO2 View Post
                  Thank you very much RethoricalCheese! I was able to use your program successfully on 650 G2, 8470P and 840 G3

                  On the 840 G3 there were 2 chips, a Winbond and an MXIC. I first patched the Winbond dump but there was still the password, then I patched the MXIC dump and it was OK.

                  Thank you very much for developing and making this program available!
                  The Winbond chip is the EC ROM (size=2048MB), I suggest flashing back the original, you could have messed up the embedded controller firmware (although if the laptop works, I guess its fine).

                  Comment


                    Re: HP BIOS unlock tool

                    Hello,

                    I used an old version of the 341A flasher that did not correctly identified the chip (only 2MB were read out of the chip). I put the dump into the HPunlocker and then I reflashed this 2MB unocked file into the bios chip. Of course now my notebook is not starting anymore. Only LED'S flashing. My Notebook is a HP 840 G2 i5200U.
                    Is it possible to fix the bios chip by reflashing an unlocked version of the bios from someone else?
                    Please advise.

                    If so, can someone send me the unlocked version of the 840 G2 i5200?

                    Comment


                      Re: HP BIOS unlock tool

                      Originally posted by delgado View Post
                      Hello,

                      I used an old version of the 341A flasher that did not correctly identified the chip (only 2MB were read out of the chip). I put the dump into the HPunlocker and then I reflashed this 2MB unocked file into the bios chip. Of course now my notebook is not starting anymore. Only LED'S flashing. My Notebook is a HP 840 G2 i5200U.
                      Is it possible to fix the bios chip by reflashing an unlocked version of the bios from someone else?
                      Please advise.

                      If so, can someone send me the unlocked version of the 840 G2 i5200?
                      post the motherboard model ..
                      Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:

                      >>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<

                      Every donation made will go towards server fees and maintenance costs.

                      Comment


                        Re: HP BIOS unlock tool

                        Hi,

                        it is a HP 840 G2 i5 5200U. It has 2 chips. See attachments.
                        Attached Files

                        Comment


                          Re: HP BIOS unlock tool

                          Originally posted by delgado View Post
                          Hi,

                          it is a HP 840 G2 i5 5200U. It has 2 chips. See attachments.
                          motherboard model, look for something on the board of this shape 6050a2637901-mb-a02, written on the board with paint ..
                          Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:

                          >>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<

                          Every donation made will go towards server fees and maintenance costs.

                          Comment


                            Re: HP BIOS unlock tool

                            Originally posted by peste View Post
                            motherboard model, look for something on the board of this shape 6050a2637901-mb-a02, written on the board with paint ..
                            A02 Board
                            Attached Files

                            Comment


                              Re: HP BIOS unlock tool

                              ...i did not remove the cover as I used a SOIC clip to flash. Do I need to remove the cover to find the MB number?

                              Comment


                                Re: HP BIOS unlock tool

                                Originally posted by RethoricalCheese View Post
                                First check this site to see if your HP is supported for the great tool Mazzif has made.

                                http://mazzifsoftware.blogspot.com/p...os-unlock.html

                                If your model is newer and not in that list, you need to dump your bios, remove password from dump and reprogram bios with modified dump.

                                For that you need an SPI programmer like CH341A or Raspberry Pi with Flashrom or any other similar programmer. A soic8 clip is also useful so there wouldn't be a need to unsolder bios IC.

                                When you have your dump, just drag and drop your file on my HPUnlocker tool and it will create a new file. It will add "_unlocked" to the name of your locked file.

                                Just program the new file on your bios IC.

                                This unlocker should work on all Elite, EliteBook, ProBook and maybe some other series HP laptops.

                                For those of you who need to unlock large amounts of laptops, I recommend adding a registry entry:
                                Code:
                                Computer\HKEY_CLASSES_ROOT\*\shell\HPUnlocker\command
                                Then modify that string adding
                                Code:
                                "C:\*location-of-exe*\HPUnlocker.exe" "%1"
                                This way you just need to right click your locked file and select HPUnlocker.

                                If there are any issues, please do let me know so I can improve this tool.
                                Hi

                                I'm kind of new on this. I have a HP Zbook G3 with locked bios. I have a CH341A programmer (I just buy this) and when I start the tool it say Failed to execute script HPUnlocker. I run this on Windows 10 x64 from C:\ or D:\ (set compatibility mode to win 7).
                                Can you please help me to unlock my bios?

                                It's correct what I understand?

                                - read locked bios using CH341A programmer
                                - backup locked bios
                                - erase bios
                                - unlock bios using HP Unlocker
                                - flash bios using CH341A programmer tool

                                Thank you for your help

                                Comment


                                  Re: HP BIOS unlock tool

                                  Originally posted by delgado View Post
                                  ...i did not remove the cover as I used a SOIC clip to flash. Do I need to remove the cover to find the MB number?
                                  yes..remove the cover and read on the motherboard, do not use the clip to read or write the bios chip ... you may have errors..remove the bios chip from the motherboard before reading or writing it ..
                                  Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:

                                  >>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<

                                  Every donation made will go towards server fees and maintenance costs.

                                  Comment


                                    Re: HP BIOS unlock tool

                                    Originally posted by peste View Post
                                    yes..remove the cover and read on the motherboard, do not use the clip to read or write the bios chip ... you may have errors..remove the bios chip from the motherboard before reading or writing it ..
                                    Hello,
                                    thank you for assisting.
                                    I fixed the problem by using a different fashing programm and still using SOIC clip.
                                    My recommendation is:
                                    CH341 V 1.29 programmer does not work correctly
                                    ASProgrammer does not wirk correctly
                                    NeoProgrammer 2.1.0.19 is working!
                                    I used clean 840 G2 Bios dump from another website:
                                    https://www.laboneinside.com/hp-elit...0-g2-bios-bin/

                                    Everyting works fine now & PW is gone!
                                    Thank you.

                                    Comment


                                      Re: HP BIOS unlock tool

                                      Hello,

                                      my HP 840 G2 Notebook is working again but the bios management engine is not working. Any fix for that after flashing Bios from a different system?

                                      Comment


                                        Re: HP BIOS unlock tool

                                        Originally posted by delgado View Post
                                        Hello,

                                        my HP 840 G2 Notebook is working again but the bios management engine is not working. Any fix for that after flashing Bios from a different system?
                                        post the bios that works for your laptop
                                        Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:

                                        >>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<

                                        Every donation made will go towards server fees and maintenance costs.

                                        Comment


                                          Re: HP BIOS unlock tool

                                          Originally posted by peste View Post
                                          post the bios that works for your laptop
                                          ...find it attached freshly dumped.
                                          Attached Files

                                          Comment

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