One of the first things I did when I purchased my Android was to DISABLE Bluetooth. Naturally it was enabled default, just as Location (which I also disabled).Huh?
Bluetooth has nothing to do with wifi, network scanning, finding, broadcast... except the bluetooth broadcasts itself to anything that is listening within 20-30 feet.
Now I would expect it to prompt you for even the default passpin even though it is displayed in the app
Maybe I am misinterpreting previous posts, that happens a lot.