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    Solved firmware downgrade problems

    Firmware installation
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    • Tricep terry
      Tricep terry last edited by

      Dear Duet,

      I'm facing difficulties with downgrading the software from 3.3 to 3.1.1, I prefer to use the old heating algorithm, which is why I would like to downgrade, however, after uploading the zip file, the system asks to install it, and after rebooting, in the system tab, it shows that it indeed uploaded and installed the firmware, however when I send M115, it shows that it did not correctly upload the new firmware, see appendix.

      Kind regards,
      MaxWhatsApp Image 2022-02-28 at 13.45.26 (1).jpeg WhatsApp Image 2022-02-28 at 13.45.26.jpeg

      jay_s_uk 1 Reply Last reply Reply Quote 0
      • jay_s_uk
        jay_s_uk @Tricep terry last edited by

        @tricep-terry you're probably missing the IAP file as its just downgraded DWC.
        IAP file from the 3.3 release and put it in both system and firmware and then try the downgrade again

        Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

        Tricep terry 1 Reply Last reply Reply Quote 0
        • Tricep terry
          Tricep terry @jay_s_uk last edited by

          @jay_s_uk

          Hi, I'm not sure which IAP file you mean, do you mean the Duet2_SDiap32_WifiEth.bin ?

          Kind regards,
          Max

          jay_s_uk 1 Reply Last reply Reply Quote 0
          • jay_s_uk
            jay_s_uk @Tricep terry last edited by

            @tricep-terry yes, thats it

            Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

            Tricep terry 2 Replies Last reply Reply Quote 0
            • Tricep terry
              Tricep terry @jay_s_uk last edited by

              @jay_s_uk

              The files was presented in both folders, and both folders seemed to contain all necessary files, making a back up now, and will than put the sd card back in, will let you know in a few minutes.

              Max

              1 Reply Last reply Reply Quote 1
              • Tricep terry
                Tricep terry @jay_s_uk last edited by

                @jay_s_uk

                Replaced the files and it worked!

                What gave it away? just curious how you new this was the problem so fast!

                Kind regards,
                Max

                jay_s_uk 1 Reply Last reply Reply Quote 0
                • jay_s_uk
                  jay_s_uk @Tricep terry last edited by

                  @tricep-terry just a hunch after they changed where the firmware files were placed. When the firmware won't downgrade, the IAP file is usually the cause

                  Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

                  1 Reply Last reply Reply Quote 1
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