I have nrf51822 and I use latest SD130. I scan nearby ble devices. In my case they are iPhones. When one device is in rage then I connect to it and start scan again and keep connection. Now iPhone will change mac address when I am connected and scan will detect new device with new mac. I check advertisement mac address and if I am not connected to that mac I start connecting. This will cause disconnect and connect again to same iPhone. Is there some way to detect mac change in connected state?