https://devzone.nordicsemi.com/f/nordic-q-a/7697/no-ulink-device-found-keilWhen I try to load my program into nRF51 DK (or when I try to debug), I get this error. How do I fix this? Running Keil 5.14.en-USTelligent Community 13Thu, 10 Dec 2015 16:22:07 GMThttps://devzone.nordicsemi.com/thread/27434?ContentTypeID=1Thu, 10 Dec 2015 16:22:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d186bb16-6d11-4b5a-90e0-3dd8360923d3jithin m das<p>If you are developing a peripheral device then use SoftDevice 110 or if you are developing a central device use SoftDevice 120. Use nRFgo Studio for flashing SoftDevice. I&#39;m getting error for SoftDevice in Keil sometimes.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/27433?ContentTypeID=1Thu, 10 Dec 2015 14:24:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4b557bb6-a88c-404d-8e84-63552ad409d8rushin<p>thanks it works. but now i am getting error like Error: Flash Download failed - &quot;Cortex-M0&quot;. may be it is because of softdevice. can you tell me which soft device should i use?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/27432?ContentTypeID=1Fri, 19 Jun 2015 10:28:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:b39df0e8-a913-4c6a-9c9e-6b8ebf28f0aajithin m das<p>Go to Project&gt;Options then select Debug tab. In Use select J-LINK / J-TRACE Cortex. Now it will be solved.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/27431?ContentTypeID=1Thu, 18 Jun 2015 19:29:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:02bebf7f-fcff-4c2d-ba44-0c11dde32887Sarah<p>Well, switching from ULINK to JLINK as the debugger was the answer (<a href="http://frankstech.blogspot.com/2014/05/nordic-nrf51822-evaluation-board-get.html).">frankstech.blogspot.com/.../nordic-nrf51822-evaluation-board-get.html).</a></p><div style="clear:both;"></div>