https://devzone.nordicsemi.com/f/nordic-q-a/51148/the-nrf52840-development-kit-programming-after-softdevice-programingHello Nordic, for my project work i am using nrf52840 dk. with segger embeded studio i drag and drop the s140 softdevice hex file into the J-Link (chip PCA10056). and i tried to run other sdk example and it was work fine so Development kit work perfectlyen-USTelligent Community 13Mon, 19 Aug 2019 13:09:57 GMThttps://devzone.nordicsemi.com/thread/204783?ContentTypeID=1Mon, 19 Aug 2019 13:09:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1f2982c1-e62c-48fd-966e-e76e62cae980Simonr<p>Hey</p> <p>I recommend using the <a href="https://www.nordicsemi.com/Software-and-Tools/Development-Tools/nRF-Connect-for-desktop">nRFConnect for Desktop Programmer app</a>. Here you can drag and drop both the SoftDevice .hex file and your custom application&#39;s output .hex file into the file memory layout.</p> <p>Please follow these steps (reads are not necessary, but nice if you want to confirm that the flash has been successful.</p> <p><img alt=" " src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/support-attachments/beef5d1b77644c448dabff31668f3a47-38d5903e35fa405295fc6bfd0ba8728e/step1.png" />1. Choose your device.</p> <p><img alt=" " src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/support-attachments/beef5d1b77644c448dabff31668f3a47-38d5903e35fa405295fc6bfd0ba8728e/step2.png" />2. Add the SoftDevice and your Output hex files. You&#39;ll have to browse for them, but the paths should be similar to the screenshot.</p> <p><img alt=" " src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/support-attachments/beef5d1b77644c448dabff31668f3a47-38d5903e35fa405295fc6bfd0ba8728e/step3.png" />Once you&#39;ve chosen the files you want to flash onto your device, Erase &amp; write. You can read afterwards to see that the same files are on your device.</p><div style="clear:both;"></div>