I designed a device with DA14583. Now I want to upgrade the SoC to DA14586. I am able to program my board consisting DA14586 and it is running well. But I am unable to see the device on my BLE Scanner or Light Blue App. My phone does not support Bluetooth 5. But from internet I found that all BLE 5 devices are backward compatible. So I just want to know whether DA14586 can be connected to Smartphones which has only BLE 4.2 support,not BLE 5.