No power Hp 15-cc523ca MB DAG71MB16D0 Rev D

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  • mferna14
    Badcaps Legend
    • Jun 2018
    • 1015
    • Canada

    #1

    No power Hp 15-cc523ca MB DAG71MB16D0 Rev D

    Hi All, I am working on this Hp 15-cc523ca MB DAG71MB16D0 Rev D. The problem was that it was dead & the 5V IC SY8288CRAC was burnt & shorted the 19v rail. I replaced it, now no short at all & the 19v rail is fine on all points, but still it does not turn on. I get 3.3v on the power ON/OFF button connector & now assuming it might be a corrupted BIOS. Can anybody re-build this original BIOS. Thanks in advance
    Attached Files
    Last edited by mferna14; 02-12-2022, 05:53 PM.
  • SMDFlea
    Super Moderator
    • Jan 2018
    • 20731
    • UK

    #2
    Re: No power Hp 15-cc523ca MB DAG71MB16D0 Rev D

    Originally posted by mferna14
    Hi All, I am working on this Hp 15-cc523ca MB DAG71MB16D0 Rev D. The problem was that it was dead & the 5V IC SY8288CRAC was burnt & shorted the 19v rail. I replaced it, now no short at all & the 19v rail is fine on all points, but still it does not turn on. I get 3.3v on the power ON/OFF button connector & now assuming it might be a corrupted BIOS. Can anybody re-build this original BIOS. Thanks in advance
    See this thread https://www.badcaps.net/forum/showthread.php?t=103498 .Look at post #3

    Download your bios https://ftp.hp.com/pub/softpaq/sp134...0/sp134416.exe .Just follow the same steps in that post ,the only difference is the end offset

    220000 - 22803F (Length 8040)


    You can flash the virgin bios but you will lose all DMI info.You can copy the DMI easily with a hex editor and insert it into the virgin bios in less than a minute.The alternative is to use HP DMI tools.
    Last edited by SMDFlea; 02-13-2022, 07:21 AM.
    All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

    Comment

    • mferna14
      Badcaps Legend
      • Jun 2018
      • 1015
      • Canada

      #3
      Re: No power Hp 15-cc523ca MB DAG71MB16D0 Rev D

      SMDFlea., soooo informative.. Thanks for taking the time & explaining how the BIOS bin is re-done. I will surely do it & inform you the out come.

      Comment

      • mferna14
        Badcaps Legend
        • Jun 2018
        • 1015
        • Canada

        #4
        Re: No power Hp 15-cc523ca MB DAG71MB16D0 Rev D

        SMDFlea, Ok I think I have made the changes correctly, can you please verify whether I have done it the correct way. I have uploaded the Original BIOS & the Hp downloaded BIOS (Changes done).. My Hp uses ths 0836B BIOS Version. Thanks in Advance
        Attached Files

        Comment

        • SMDFlea
          Super Moderator
          • Jan 2018
          • 20731
          • UK

          #5
          Re: No power Hp 15-cc523ca MB DAG71MB16D0 Rev D

          Originally posted by mferna14
          SMDFlea, Ok I think I have made the changes correctly, can you please verify whether I have done it the correct way. I have uploaded the Original BIOS & the Hp downloaded BIOS (Changes done).. My Hp uses ths 0836B BIOS Version. Thanks in Advance
          No its not right your bios version is BID08361 .Your DMI offsets are 220000 - 22803F (Length 8040) .Download your bios,run the exe to extract them https://ftp.hp.com/pub/softpaq/sp134...0/sp134416.exe open your backup and the extracted 08361 with hxd they will be side by side,enter the offsets in both, copy from your backup,paste insert into the 08361
          Attached Files
          All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

          Comment

          • mferna14
            Badcaps Legend
            • Jun 2018
            • 1015
            • Canada

            #6
            Re: No power Hp 15-cc523ca MB DAG71MB16D0 Rev D

            Thank you very much... I did it now, but still motherboard is missing 3.3/5V, I have no reason why., I will open a new Trouble shooting string... Thanks

            Comment

            • mferna14
              Badcaps Legend
              • Jun 2018
              • 1015
              • Canada

              #7
              Re: No power Hp 15-cc523ca MB DAG71MB16D0 Rev D

              SMDFlea, Now please check whether I have done it correctly, first time doing it, so I am bit protective with the changes... Thanks in advance
              Attached Files

              Comment

              • SMDFlea
                Super Moderator
                • Jan 2018
                • 20731
                • UK

                #8
                Re: No power Hp 15-cc523ca MB DAG71MB16D0 Rev D

                Originally posted by mferna14
                SMDFlea, Now please check whether I have done it correctly, first time doing it, so I am bit protective with the changes... Thanks in advance
                Perfect

                You can do any HP Insyde bios the same way (usually) you just have to find the offsets as they can be in different places.The win key offsets can be added seperately it doesn`t have to be,and isn`t always in one big block
                All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                Comment

                • mferna14
                  Badcaps Legend
                  • Jun 2018
                  • 1015
                  • Canada

                  #9
                  Re: No power Hp 15-cc523ca MB DAG71MB16D0 Rev D

                  Thank you so much SMDFlea, you taught us all.

                  Comment

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