Epson Endeavor NJ3500E - Need Unlock Bios Password

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  • tfatt
    Member
    • Sep 2021
    • 18
    • Singapore

    #1

    Epson Endeavor NJ3500E - Need Unlock Bios Password

    I need help to remove bios locked. Attached the dump file.

    Thanks
    Attached Files

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  • hoaca388
    Badcaps
    • Jan 2022
    • 12441
    • Socialist Republic of Vietnam

    #2
    Re: Epson Endeavor NJ3500E - Need Unlock Bios Password

    Your bios is full FF


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    • tfatt
      Member
      • Sep 2021
      • 18
      • Singapore

      #3
      Re: Epson Endeavor NJ3500E - Need Unlock Bios Password

      I re-do again with diff version of softwares.

      Need help to unlock the bios password.

      Thanks.
      Attached Files

      if you find these attachements useful please consider making a small donation to the site

      Comment

      • hoaca388
        Badcaps
        • Jan 2022
        • 12441
        • Socialist Republic of Vietnam

        #4
        Re: Epson Endeavor NJ3500E - Need Unlock Bios Password

        No, the two files are different but they are almost full FF.

        You can see that if open them with HxD editor.


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        • tfatt
          Member
          • Sep 2021
          • 18
          • Singapore

          #5
          Re: Epson Endeavor NJ3500E - Need Unlock Bios Password

          Hi All,

          I re-read the bios chip using the programmer.

          Need help to unlock the bios password.

          Thanks.
          Attached Files

          if you find these attachements useful please consider making a small donation to the site

          Comment

          • AAAC
            Badcaps Veteran
            • Jan 2020
            • 459
            • Mexico

            #6
            Re: Epson Endeavor NJ3500E - Need Unlock Bios Password

            @tfatt
            There's still a problem with your programmer, you can quickly tell by the compressed RAR file size of 28.0kB.

            Comment

            • tfatt
              Member
              • Sep 2021
              • 18
              • Singapore

              #7
              Re: Epson Endeavor NJ3500E - Need Unlock Bios Password

              @AAAC

              Thanks for your help. If I extract the rar file, the bin size is 4096kb.

              Is it normal? See my attached file.

              TQ
              Attached Files

              if you find these attachements useful please consider making a small donation to the site

              Comment

              • AAAC
                Badcaps Veteran
                • Jan 2020
                • 459
                • Mexico

                #8
                Re: Epson Endeavor NJ3500E - Need Unlock Bios Password

                @tfatt
                For BIOS files on average you do get about 50% +/- compression, meaning that for an uncompresed 4096kB file, the compressed file should be around 2,048kB.

                Comment

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