Sorry for the confusion. I should have said detect rather than scan. I can't provide any more details about the use case, but I am trying to see all connected devices. I don't understand why the limitation. For BLE, If I remember correctly, we can specify a wildcard service UUID to detect all advertising BLE devices.

No. I am referring to this: https://developer.apple.com/documentation/corebluetooth/using-core-bluetooth-classic It seems we are limited to specifying up to 4 service UUIDs to scan for, which is very limiting.

I do see summaries/CoreLocation.log, but the file is empty.

Thanks. For the first option, where can I find instructions on loading the captured data into Instruments?