https://devzone.nordicsemi.com/f/nordic-q-a/42854/unable-to-pair-to-ble_app_hrs-using-nrf-connect-v2-6-1Hi all, I&#39;m trying to learn more about the pairing and bonding procedures in the SDK. I connected one nRF52480 DK to my computer (running Ubuntu 16.04) and let nRF Connect v2.6.1 flash it with &quot;the latest connectivity firmware&quot;. The other nRF52840 DKen-USTelligent Community 13Tue, 22 Jan 2019 17:34:12 GMThttps://devzone.nordicsemi.com/thread/167186?ContentTypeID=1Tue, 22 Jan 2019 17:34:12 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0dfea0f2-05e8-4607-abdd-beecbe4aebb5Fredrik<p>Digging some more I found the solution in J&oslash;rgen&#39;s answer <a href="https://devzone.nordicsemi.com/f/nordic-q-a/18984/pc-ble-driver-py---sd_ble_gap_sec_params_reply-fails/73374#73374">in this question</a>. Following workaround 2 <a href="https://wiki.segger.com/index.php?title=J-Link-OB_SAM3U#Workaround_2">here</a>&nbsp;worked for me (replace &quot;<span>J-Link Commander&quot; with &quot;JLinkExe&quot; and you should be good).</span></p><div style="clear:both;"></div>