HP EliteBook 640 G9 Bios password

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  • alexlenz
    New Member
    • Feb 2023
    • 9
    • Brazil
    #461
    Originally posted by kouider
    try and feedback
    dmi data
    SerialNumber:BRJ3338ZBS
    ProductConfigurationID:8U337LC#AK4
    Board CT Number:PQUFL0AXGIEILM
    Name:HP EliteBook
    ProductName:HP EliteBook 640 14 inch G9 Notebook PC
    BuildID:22WWRTDZ601#SAK4#DAK4
    FeatureByte:476J6S6b7B7H7M7Q7W7maBaEapaqauawbhcAcyfPguhKhkjhk8mEn7nVpDpVpnpqprqjqz.55
    Dear Kouider, it didn’t work. After flashing, the laptop powers on, the keyboard light blinks, two orange lights appear on F5 and F8, and then it keeps looping.
    What do you think about trying to unlock the one in the attached file? It’s the main BIOS that worked after the restoration.
    ​
    Attached Files

      Comment

      • ajbouni
        Member
        • Jul 2017
        • 10
        • tunisia
        #462
        Originally posted by ajbouni
        hi i have elitebook 640G9 locked , this is both dump ec and main
        SN 5CD3172NL7
        prod ID 7K0L5EC#ABD
        thank u
        hello everybody i need to unlock my computer but it seems that no one can help.
        i need help please (:
        thank u

          Comment

          • SMDFlea
            Super Moderator
            • Jan 2018
            • 21307
            • UK
            #463
            Originally posted by ajbouni

            hello everybody i need to unlock my computer but it seems that no one can help.
            i need help please (:
            thank u
            Didn`t you read any of the other posts in this thread.. https://www.badcaps.net/forum/troubl...49#post3672349
            All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

              Comment

              • alexlenz
                New Member
                • Feb 2023
                • 9
                • Brazil
                #464
                Originally posted by SMDFlea

                Didn`t you read any of the other posts in this thread.. https://www.badcaps.net/forum/troubl...49#post3672349
                It didn’t work. After flashing, the laptop powers on, the keyboard light blinks, two orange lights show up on F5 and F8, and then it keeps looping. I downloaded the files and flashed them, but no success. What’s the correct procedure? Should I erase first and then flash, or can I just overwrite it?

                  Comment

                  • SMDFlea
                    Super Moderator
                    • Jan 2018
                    • 21307
                    • UK
                    #465
                    Originally posted by alexlenz

                    It didn’t work. After flashing, the laptop powers on, the keyboard light blinks, two orange lights show up on F5 and F8, and then it keeps looping. I downloaded the files and flashed them, but no success. What’s the correct procedure? Should I erase first and then flash, or can I just overwrite it?
                    erase before programming, and also check around each chip for any resistors that you might have dislodged
                    All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                      Comment

                      • alexlenz
                        New Member
                        • Feb 2023
                        • 9
                        • Brazil
                        #466
                        Originally posted by SMDFlea

                        erase before programming, and also check around each chip for any resistors that you might have dislodged
                        UPDATE / SOLUTION

                        It worked!
                        • Erased MAIN + EC chips
                        • Flashed files from rex98
                        • 1st boot: F10 → apply factory defaults → restart
                        • 2nd boot: reset security settings to defaults → exit
                        • Installed BCU and restored saved DMI data
                        Thanks a lot to everyone who helped out!

                          Comment

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