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    no flash possible after fw 1.4.1.sg on M5GO

    UIFlow
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    • phd0P
      phd0
      last edited by

      Hello everyone,
      It's my first M5Stack,
      after a flash with M5burn with a new M5GO with the 1.4.1.sg FW, its work fine with http://flow01.m5stack.com/ but i can't reflash (or Erase) with a older 1.4.0 FW :
      can't connect with USB port (but USB31 is here)
      The screen go black, it's beep every 1s, but nothing

      Error message :

      esptool.py v2.5.0
      Serial port COM31
      Connecting........_____....._____....._____....._____....._____....._____....._____
      
      A fatal error occurred: Failed to connect to Espressif device: Invalid head of packet (0x30)
      Finished
      

      Any idea ?

      French and happy user

      1 Reply Last reply Reply Quote 0
      • ajb2k3A
        ajb2k3
        last edited by

        Step 1 - turn the connection that plugs into the M5Stack upside down and try again,
        Step 2 - Try a new USBC lead,
        Step 3 try a different computer.

        I'm assuming that you are using a windows computer as it says Com31.

        UIFlow, so easy an adult can learn it!
        If I don't know it, be patient!
        I've ether not learned it or am too drunk to remember it!
        Author of the WIP UIFlow Handbook!
        M5Black, Go, Stick, Core2, and so much more it cant be fit in here!

        1 Reply Last reply Reply Quote 0
        • phd0P
          phd0
          last edited by

          thanks for the fast response. Yes Windows7 pro, this the good driver
          test with :

          • another cable (in 115200 or 921600 baud ) : not ok
          • another PC in Win10 and new install drivers + M5burner (in 115200 baud) : OK

          i'm happy !

          French and happy user

          ajb2k3A 1 Reply Last reply Reply Quote 0
          • ajb2k3A
            ajb2k3 @phd0
            last edited by

            @phd0

            Ok on old computer, delete the driver and shut down the computer into full power off.
            Start computer and fresh install driver, then shut pc off again when finished installing.
            Restart pc and try to connect. the driver can be problematic at times how ever if you have an arduino of usb>UART you can bypass the inbuilt adapter to program.

            UIFlow, so easy an adult can learn it!
            If I don't know it, be patient!
            I've ether not learned it or am too drunk to remember it!
            Author of the WIP UIFlow Handbook!
            M5Black, Go, Stick, Core2, and so much more it cant be fit in here!

            1 Reply Last reply Reply Quote 0
            • T
              Thrasher
              last edited by

              Try to reflash with esptool.py, it also has erase option

              1 Reply Last reply Reply Quote 0
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