Eprom dump versus firmware update

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  • angelos
    Badcaps Veteran
    • Dec 2012
    • 573
    • South Africa
    #1

    Eprom dump versus firmware update

    Hi all,
    I have a interesting question but does anyone know the following.
    If i flash a tv with a firmware update and then i remove the memory ic 25Q32BVSIG, a 4mb SPI chip and read the contents with my programmer and compare the two image files (Dump versus firmware) are they going to be identical.
    What I want to get at is that if I have a firmware update and I try to download it directly into the SPI chip will it be successful? Will it work. So far I never tried it because I assumed it will not be the same. Anybody know?

    Regards
    Angelos
    Tags: None
    • angelos
      Badcaps Veteran
      • Dec 2012
      • 573
      • South Africa
      #2
      Eprom dump versus firmware update

      Hi all,
      I have a interesting question but does anyone know the following.
      If i flash a tv with a firmware update and then i remove the memory ic 25Q32BVSIG, a 4mb SPI chip and read the contents with my programmer and compare the two image files (Dump versus firmware) are they going to be identical.
      What I want to get at is that if I have a firmware update and I try to download it directly into the SPI chip will it be successful? Will it work. So far I never tried it because I assumed it will not be the same. Anybody know?

      Regards
      Angelos

        Comment

        • ducky29
          Badcaps Veteran
          • Dec 2015
          • 369
          • Europe
          #3
          Re: Eprom dump versus firmware update

          Firmware updates are different from the content on the 25Q32. It wouldnt work if you put the firmware directly on a 25Q32 or vice versa.

            Comment

            • angelos
              Badcaps Veteran
              • Dec 2012
              • 573
              • South Africa
              #4
              Re: Eprom dump versus firmware update

              I thought as much. Thanks for confirming my suspicion.

              Cheers

                Comment

                • Davi.p
                  Hobbist Tech
                  • Sep 2009
                  • 4543
                  • Italy - Milan
                  #5
                  Re: Eprom dump versus firmware update

                  i think you forget some "?", can you repeat? Anyway an update is almost never the same as a dump, because an entire firmware is comprehensive of every partition , the boot loaders (preboot, boot, etc..), the kernel, system, recovery, etc., an update can be only the main software update..

                    Comment

                    • angelos
                      Badcaps Veteran
                      • Dec 2012
                      • 573
                      • South Africa
                      #6
                      Re: Eprom dump versus firmware update

                      Yes Davi, my grammar sucks. My english teacher thought so too. ��*♀️
                      Over the weekend i got in a tv that needed a eprom dump and i could not fix it because the unit i was working on is so uncommon.

                        Comment

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