https://devzone.nordicsemi.com/f/nordic-q-a/46160/looped-service-discovery-causes-hardfaultThere is bug in SDK 15.3 in the way the DB discovery procedure handles SoftDevice busy state. In the discovery_start() function the code checks return code from sd_ble_gattc_primary_services_discover(). If it is NRF_ERROR_BUSY then it sets p_db_discoveryen-USTelligent Community 13Tue, 16 Apr 2019 12:15:14 GMThttps://devzone.nordicsemi.com/thread/182383?ContentTypeID=1Tue, 16 Apr 2019 12:15:14 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4f3ec55d-9f51-4225-bcd6-117f62ea0a1bEinar Thorsrud<p>Hi,</p> <p>Thank you for reporting. I have created an internal bug report so that it can be fixed in a future nRF5 SDK release.</p><div style="clear:both;"></div>