[CoreBluetooth] Pairing device by iPhone Bluetooth Setting and pairing via CoreBluetooth in app

Hi, I use the CoreBluetooth framework in one of my apps. It is working at pairing and scanning. But I have a problem:

  • If the device was paired with the iPhone's Bluetooth settings, I am no longer able to scan it using the scanForPeripherals(withServices:options:) function. Please explain why it is and how to know device was paired with iPhone's Setting on CoreBluetooth?

Thanks