https://devzone.nordicsemi.com/f/nordic-q-a/9530/s310-v3-softdevice-cental-roleThe V3 S310 documentation appears to show that it can operate in a Central Role. The BLE_GAP_SVCS enum has been modified to now include the following additional values SD_BLE_GAP_SCAN_START, / &lt; Start Scanning. */ SD_BLE_GAP_SCAN_STOP, / &lt; Stop Scanningen-USTelligent Community 13Fri, 02 Oct 2015 15:02:06 GMThttps://devzone.nordicsemi.com/thread/35225?ContentTypeID=1Fri, 02 Oct 2015 15:02:06 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a40c361f-77e6-4af4-b28c-83c4dbd690dbStefan Birnir Sverrisson<p>Hi</p> <p>Thanks for you question</p> <p>S310 supports ANT and BLE peripheral role. It does not support BLE central role. The APIs of S110 peripheral and S120 central BLE softdevices are aligned, it is a design decision. The S310 is based on S110 peripheral softdevice and S210 ANT softdevice. Perhaps it is confusing, as you have pointed out. An error code should be returned if the sd_* call is not supported in the peripheral role.</p><div style="clear:both;"></div>