https://devzone.nordicsemi.com/f/nordic-q-a/86590/not-able-to-run-a-simple-blinky-application-on-nrf5340dk-with-zephyrHi I&#39;m evaluating the nrf5340dk devboard and are building a simple application on top of zephyr. I&#39;m using Cmake and ninja on Ubuntu. The code builds and I&#39;m able to flash the board, but nothing happens with the LED. I&#39;ve commented out MCUboot fromen-USTelligent Community 13Tue, 05 Apr 2022 09:48:50 GMThttps://devzone.nordicsemi.com/thread/361789?ContentTypeID=1Tue, 05 Apr 2022 09:48:50 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ac6bc9ba-69d9-4097-87b9-3442ea309f8bPelle<p>Hi<br />Thanks for your reply!</p> <p>Sorry forgot to update, but the issue is solved. It was the offset 0x200 that was the problem. When removing that from the config file it worked.</p> <p></p> <p>I&#39;m building an own simple application.</p> <p></p> <p>BR</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/361788?ContentTypeID=1Tue, 05 Apr 2022 09:45:48 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c87f698d-d721-4124-8136-5713fb5e3d8cMarte Myrvold<p>Hi,</p> <p>Are you building an existing application or sample from nRF Connect SDK or Zephyr, or is this an application you have made yourself? There is a simple Blinky example in Zephyr, but that does not use MCUboot.</p> <p>Do you see the same if you build and flash with west instead?</p> <p>Please check out&nbsp;<a href="https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.9.1/nrf/ug_nrf5340.html">Working with nRF5340 DK</a>&nbsp;in our documentation for more information on how to use nRF5340 DK.</p> <p>Best regards,</p> <p>Marte</p><div style="clear:both;"></div>