Welcome to the Pycom forum Forum
    • \[\[global:header.categories\]\]
    • \[\[global:header.recent\]\]
    • \[\[global:header.tags\]\]
    • \[\[global:header.popular\]\]
    • Login

    Explore Pybytes | Official Documentation | Report a Firmware Bug/Issue | GitHub

    connection with ESP32 fails

    Scheduled Pinned Locked Moved LoPy
    5 Posts 3 Posters 2.1k Views 3 Watching
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • M Offline
      Mimite995
      last edited by

      Hello,

      While im trying to update my firmware with updater it says my connection fails when i try to follow the steps from downgrading firmware it gives me the output:
      Exception: Failed to connect to ESP32: Invalid head of packet ('\x08'), on line 128

      does anyone know what is going wrong? or how to solve it?

      A 1 Reply Last reply Reply Quote 0
      • A Offline
        abilio @Mimite995
        last edited by

        @Mimite995, I'm going to need more information to help you. Does it fail when running the regular update tool? Which OS are you using? How did you connect your device to the computer?

        1 Reply Last reply Reply Quote 0
        • M Offline
          Mimite995
          last edited by

          @abilio it does fail when using the regular update tool and ive tried it with MAC and Windows PC.
          ive used USB COM port and connected the GND with G23.

          im new to this, but ive checked the COM port and it gives me an output in Putty: boot mode (37) and it says it works fine

          ive read some things on other topics and they said that they have got an output like this:
          rst:0x1 (POWERON_RESET),boot:0x3 (DOWNLOAD_BOOT(UART0/UART1/SDIO_REI_REO_V2))

          L 1 Reply Last reply Reply Quote 0
          • L Offline
            livius @Mimite995
            last edited by

            @Mimite995
            you can not have repl output
            rst:0x1 (POWERON_RESET),boot:0x3 (DOWNLOAD_BOOT(UART0/UART1/SDIO_REI_REO_V2))

            if you have than you are connected to board by another (COM) tool
            disconnect it and run updater it must have exclusive access to COM

            think about people first, then computers

            M 1 Reply Last reply Reply Quote 0
            • M Offline
              Mimite995 @livius
              last edited by

              @livius Sorry my explanation wasn't correct. I mean I first tried the updater.
              That gave me a failure.
              The log was:
              connecting...
              Failure!

              then I tried to find the issue by other another tool, but i cant find the issue.

              1 Reply Last reply Reply Quote 0

              Hello! It looks like you're interested in this conversation, but you don't have an account yet.

              Getting fed up of having to scroll through the same posts each visit? When you register for an account, you'll always come back to exactly where you were before, and choose to be notified of new replies (either via email, or push notification). You'll also be able to save bookmarks and upvote posts to show your appreciation to other community members.

              With your input, this post could be even better 💗

              Register Login
              • 1 / 1
              • First post
                Last post

              Pycom on Twitter

              Pycom