https://devzone.nordicsemi.com/f/nordic-q-a/26169/transferring-code-from-nrf51822-dk-to-beacon-kitI want to transfer the code from nrf51822 dk board to a beacon kit, after connecting the beacon kit to the dk board, then I change PCA10026 to PCA20006 on the C/C++ define, and change the softdevice to &quot;s110_nrf51822_7.1.0_softdevice.hex&quot;, then downloaden-USTelligent Community 13Mon, 23 Oct 2017 12:52:20 GMThttps://devzone.nordicsemi.com/thread/103089?ContentTypeID=1Mon, 23 Oct 2017 12:52:20 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dc089790-9706-41a2-a9ef-4f65868386d4Bj&#248;rn Kvaale<p>Have you seen <a href="https://devzone.nordicsemi.com/question/22223/j-link-and-nrf51-dk/">this Devzone case</a>? In addition, I think it would be a good idea to check <a href="https://www.nordicsemi.com/eng/nordic/Products/nRF51-DK/nRF51-DK-UG/38677">Chapter 5.10 of the nrf51 userguide</a> to make sure you have set up your nrf51 &amp; beacon correctly. It seems correct from the picture, but there might be something that is slightly incorrect.</p><div style="clear:both;"></div>