https://devzone.nordicsemi.com/f/nordic-q-a/1139/master-control-panel-couldn-t-discover-any-deviceHi, I have a nRF51822 development kit without the motherboard. I have done the Softdevice download to my PCA10004 with s110_nrf51822_5.2.1_softdevice.hex and successfully download the heart rate monitor demo (without need to press button for advertisingen-USTelligent Community 13Thu, 02 Jan 2014 14:08:08 GMThttps://devzone.nordicsemi.com/thread/5329?ContentTypeID=1Thu, 02 Jan 2014 14:08:08 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c2b67f08-d468-41e0-a8a9-4ce3dea72d85Ole Morten<p>To clean things up, it&#39;s best if you can accept an answer that helps you. I&#39;ve done it for you now. :-)</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/5330?ContentTypeID=1Tue, 17 Dec 2013 12:07:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:241f0333-7e68-45ef-a26f-79d2090deef8Guest<p>Thank you very much for pointing this out. The problem is solved nicely with S110 version 6.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/5328?ContentTypeID=1Tue, 17 Dec 2013 12:07:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a5a67c4d-b6a0-4895-aa63-1fd23b09bb89Bastiaan<p>Thank you very much for pointing this out. The problem is solved nicely with S110 version 6.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/5327?ContentTypeID=1Mon, 16 Dec 2013 11:15:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:924db419-d5af-4322-bf42-a23411d5e126Ole Morten<p>Could it be that you try to use S110 version 5.2.1 with SDK version 5.0.0? If so, take a look at <a href="http://devzone.nordicsemi.com/index.php/svc-handler-missing">this</a>.</p><div style="clear:both;"></div>