https://devzone.nordicsemi.com/f/nordic-q-a/6871/nrf51-dongle-programmingHi, I want to get this dongle to &#39;see&#39; the data being transmitted to and from the nrf51 dk. I saw a note here adafruit saying The sniffer firmware cannot be used with the Nordic DFU bootloader firmware, which means that if you want to reprogramen-USTelligent Community 13Tue, 05 May 2015 14:20:45 GMThttps://devzone.nordicsemi.com/thread/24220?ContentTypeID=1Tue, 05 May 2015 14:20:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:058f9a13-5a30-4e74-944c-db02612dc017John<p>Thanks for your response, RK. I need one that works with MCP so I&#39;m going with the nrf51 Dongle.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/24219?ContentTypeID=1Tue, 05 May 2015 01:58:38 GMT137ad170-7792-4731-bb38-c0d22fbe4515:93a506b8-6dd9-41b1-8948-4f5d3e545755RK<p>Who&#39;s dongle are you talking about? Are you intending on getting Nordic&#39;s NRF51 Dongle, the one made by Nordic? That comes with onboard Segger and full support and can be programmed without additional hardware. Or are you talking about getting the Adafruit BLE Sniffer which doesn&#39;t come with any of those things? The Adafruit one needs you to have or purchase a Segger or other programmer with the correct cable if you want to program it.</p><div style="clear:both;"></div>