Mac Address of nRF51 on nRF Connect and get in the codehttps://devzone.nordicsemi.com/f/nordic-q-a/33356/mac-address-of-nrf51-on-nrf-connect-and-get-in-the-codeI have a confusion about mac address of nrf51822, I run example ble_app_uart . When I use nRF Connect on Android, I can see the mac address of nRF51822 is CB:16:04:4A:10:56 , But when I try to run command sd_ble_gap_address_get(&amp;mac) , I got thisen-USTelligent Community 13Fri, 13 Apr 2018 08:58:19 GMTRE: Mac Address of nRF51 on nRF Connect and get in the codehttps://devzone.nordicsemi.com/thread/128196?ContentTypeID=1Fri, 13 Apr 2018 08:58:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:e3d3481a-16dc-44dc-a0cb-0ff6ef5f87cbH&#229;kon Alseth<p>Hi,</p> <p>&nbsp;</p> <p>The bluetooth address is derived from the registers NRF_FICR-&gt;DEVICEADDR[0] and NRF_FICR-&gt;DEVICEADDR[1].</p> <p>Could you post the content of these two registers?</p> <p>&nbsp;</p> <p>Also, do you check the return code of the sd_ble_gap_address_get() call? It might be that this is failing for some reason.</p> <p>&nbsp;</p> <p>Best regards,</p> <p>Håkon</p><div style="clear:both;"></div>