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    Wifi stopped working and duet wifi getting super hot!

    Duet Hardware and wiring
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    • yatinsd
      yatinsd last edited by

      hi guys, i have a duet wifi board today i rewired to a cleaner setup after that, i noticed something very strange. wifi chip stop working, apart from that whenever i connect my duet with min usb the area near the memory card gets super hot within seconds. what could be the issue?( i disconnected immediately as i sensed heat), also the fuse is totally intact.

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      • dc42
        dc42 administrators last edited by

        I suggest you remove the SD card first and check whether it is damaged.

        Duet WiFi hardware designer and firmware engineer
        Please do not ask me for Duet support via PM or email, use the forum
        http://www.escher3d.com, https://miscsolutions.wordpress.com

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        • yatinsd
          yatinsd last edited by

          After removing the card it is not getting hot as much in that area. but wifi chip is overheating and its led also not turning on, neither it is detected on my pc.

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          • yatinsd
            yatinsd last edited by

            I suspect something if that maybe the case, i connected a precision piezo sensor just before this short. I have put the piezo disc directly below the bed spring , so the bed and the piezo disc are now short. can this point to some damage in the board?

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            • yatinsd
              yatinsd last edited by

              1_1551981784129_53584768_10213261591554836_5606328842781196288_n.jpg 0_1551981784128_53199759_10213261590954821_4772217254408355840_n.jpg

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              • yatinsd
                yatinsd last edited by

                0_1551982235187_WhatsApp Image 2019-03-07 at 11.39.22 PM.jpeg

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                • yatinsd
                  yatinsd last edited by

                  The sd card is damaged i have checked!

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                  • dc42
                    dc42 administrators last edited by

                    Blown SD card and overheating WiFi module are the classic signs of having had an over voltage on the +3.3V rail. The usual causes are a short between +3.3V and either VIN or +5V, or a short between VIN and +5V (which often blows the 3.3V regulator too).

                    Duet WiFi hardware designer and firmware engineer
                    Please do not ask me for Duet support via PM or email, use the forum
                    http://www.escher3d.com, https://miscsolutions.wordpress.com

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                    • yatinsd
                      yatinsd last edited by

                      WiFi is blown rest all regulators are fine, I have got it checked from a technician! Processor clock is also not generating so probably it has also gone sore!

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                      • ryanrocksforever
                        ryanrocksforever last edited by

                        Is there any fix to this, I am having the same problem too. And also is there any documentation on how to set up a new sd card if the other one got corrupted. Also when this happened to me there was a little bit of smoke coming out from around the sd card. I assume thats what fried my sd card.

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                        • seraser
                          seraser @ryanrocksforever last edited by

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