https://devzone.nordicsemi.com/f/nordic-q-a/23331/nothing-is-building-and-flashing-on-dev-kitHi All, I&#39;ve got a nRF51-DK development kit, and I just compiled and downloaded my first example to it through Keil uVision. Problem is that nothing happens when the program should be running. And with good reason, because if I run a debug sessionen-USTelligent Community 13Fri, 07 Jul 2017 10:23:03 GMThttps://devzone.nordicsemi.com/thread/91727?ContentTypeID=1Fri, 07 Jul 2017 10:23:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dea2124e-7058-4667-9a43-96ffccdb6db4YASH<p>SDK 12.2.0, nrf51422, s130, nrfgoStudio,</p> <p>Although Thanks,i got the solution. Starting address of Flash and RAM were supposed to be changed.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/91725?ContentTypeID=1Fri, 07 Jul 2017 07:34:01 GMT137ad170-7792-4731-bb38-c0d22fbe4515:300a72fb-20d8-45a0-ab30-d3f595f446b4Joakim Jakobsen<p>Hi Verma. It may look like you are using an example that doesn&#39;t require a softdevice. You can try to erase the softdevice before flashing the example. But like endnode said, providing as much relevant information as possible is the key to getting good answers. (e.i Which board, SDK-version, softdevice, code snippets etc.)</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/91726?ContentTypeID=1Fri, 07 Jul 2017 07:04:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:743b3903-b930-4863-9bd9-0b1446d8c720endnode<p>Which examples are you using? Which SDK version? How exactly you flash it to target? Only poor answers to poorly formulated questions...;)</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/91724?ContentTypeID=1Fri, 07 Jul 2017 06:29:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a4fa06dd-ae0e-4c17-9796-047085e0be1bYASH<p>and also when i flash the softdevice and then flashing my project, it says:- Error: Flash Download Failed : &quot;Cortex-M0&quot;</p><div style="clear:both;"></div>