https://devzone.nordicsemi.com/f/nordic-q-a/27544/nrf52-device-not-detectedHi, I&#39;m having an issue with some PCBs I&#39;ve designed with the NRF52832 on a module. When I first connect the board through a j-link, the device is not detected in NRFgo studio or by the command line tool. After trying for a while, seemingly randomly theen-USTelligent Community 13Fri, 24 Nov 2017 11:44:45 GMThttps://devzone.nordicsemi.com/thread/108756?ContentTypeID=1Fri, 24 Nov 2017 11:44:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:72b341be-7bf0-4a51-86b0-788959caf3aapolly<p>I think I&#39;ve resolved this but can&#39;t be sure as I ran out of boards to flash for the first time. There were a few things causing issues:</p> <ul> <li>On one board there was indeed a mechanical fault - a trace had been broken during assembly.</li> <li>The coin cell had dropped below 3V in some cases when I was trying to connect to the device for the first time</li> <li>With the above two issues resolved, the board could not be detected by nrfgo studio, however it could be programmed using the command line tool.</li> </ul><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/108755?ContentTypeID=1Fri, 24 Nov 2017 11:20:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c54f6d93-4bb0-4d81-911f-30e5b5d757eeMartinBL<p>The randomness might suggest some sort of mechanical failure. Maybe a bad USB cable, bad soldering, bad wires, etc. Could that be it?</p><div style="clear:both;"></div>