HP Laptop 17-cp0290nf

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  • Genova
    Senior Member
    • Jan 2020
    • 118
    • FRANCE
    #1

    HP Laptop 17-cp0290nf

    Hi all,

    I'm a little annoyed with this pc that won't recover.

    HP recovery starts well but it seems that bios recovery goes too quickly, Pc reboot, recovery process messages appear but after the last pc reboots the pc turns on but no screen display, even after 20 minutes.

    HP Laptop 17-cp0290nf
    65Z38EA
    SN:5CG2110HF6
    Attached Files
    Tags: None
    • Answer selected by Genova at 04-09-2025, 08:54 AM.
      SMDFlea
      Super Moderator
      • Jan 2018
      • 21692
      • UK
      Originally posted by Genova
      Thank you SMDFlea but ;

      Offsets: 413000 ok - 41403F did you mean 414030 ?
      435000 ok - 43503F did you mean 435030 ?
      The DMI offsets are 413000 to 41403F .The windows key offsets are 435000 to 43503F .I always add extra to the end offset for the widows key as there is one character on the last row with the rest FF`s. Its easier to remember when the length is 40

      Click image for larger version Name: offsets.jpg Views: 0 Size: 114.1 KB ID: 3611188
        • Selected Answer

        Comment

        • SMDFlea
          Super Moderator
          • Jan 2018
          • 21692
          • UK
          #2
          Originally posted by Genova
          Hi all,

          I'm a little annoyed with this pc that won't recover.

          HP recovery starts well but it seems that bios recovery goes too quickly, Pc reboot, recovery process messages appear but after the last pc reboots the pc turns on but no screen display, even after 20 minutes.

          HP Laptop 17-cp0290nf
          65Z38EA
          SN:5CG2110HF6
          Use the Guides to find and extract a virgin bios

          [Guide] How to find the right HP bios version to flash https://www.badcaps.net/forum/troubl...flash?t=122195
          [Guide] How to extract ready for programming dump from HP update executable file https://www.badcaps.net/forum/showthread.php?t=121948

          Copy the DMI (serial,feature Byte,win key) from your backup to the virgin bios using a hex editor.Select the same offsets (select block in HxD) in both bios,copy from the old,paste to the new.

          Offsets: 413000 - 41403F and 435000 - 43503F

          HxD Hex editor https://mh-nexus.de/en/hxd/​
          All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

            Comment

            • Genova
              Senior Member
              • Jan 2020
              • 118
              • FRANCE
              #3
              Thank you SMDFlea but ;

              Offsets: 413000 ok - 41403F did you mean 414030 ?
              435000 ok - 43503F did you mean 435030 ?

                Comment

                • SMDFlea
                  Super Moderator
                  • Jan 2018
                  • 21692
                  • UK
                  #4
                  Originally posted by Genova
                  Thank you SMDFlea but ;

                  Offsets: 413000 ok - 41403F did you mean 414030 ?
                  435000 ok - 43503F did you mean 435030 ?
                  The DMI offsets are 413000 to 41403F .The windows key offsets are 435000 to 43503F .I always add extra to the end offset for the widows key as there is one character on the last row with the rest FF`s. Its easier to remember when the length is 40

                  Click image for larger version Name: offsets.jpg Views: 0 Size: 114.1 KB ID: 3611188
                  All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters
                    • Selected Answer

                    Comment

                    • Genova
                      Senior Member
                      • Jan 2020
                      • 118
                      • FRANCE
                      #5
                      Thanks a lot SMDFlea for yours explanations, bios is recovered. Manufacture Programming Mode in Unlock mode at start, easily reset with BCU program.
                      ​

                        Comment

                        • SMDFlea
                          #5.1
                          SMDFlea commented
                          04-09-2025, 08:46 AM
                          Editing a comment
                          You`re welcome ;-)
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