Hello everyone, I bought a Bluetooth dongle today but no drivers for Mac were included. After searching the web to figure out how it can work on Mac, I found this article: http://www.atpeaz.com/index.php/2012/using-unsupported-bluetooth-4-0-usb-dongle-with-os-x/ According to System Information, my dongle has the same chip like the one in the article mentioned (BCM20702A0). The guide is written for Mountain Lion and I figured out some differences between ML and Yosemite inside the Info.plist file: - the String com.apple.driver.BroadcomUSBBluetoothHCIController in ML is now called com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport in Yosemite - the String BroadcomUSBBluetoothHCIController in ML is called BroadcomBluetoothHostControllerUSBTransport in Yosemite Everything else seems to be the same. I considered these minor changes and did everything the guide said but I just didn't get my dongle to work. Every time I modify the kext-file and install it via Kext Tool, the Bluetooth icon in the menubar gets a zig-zag-line on it. Clicking it reveals a grayed-out item called "Bluetooth Not Available". Is somebody using a third-party USB dongle on the Mac without having any drivers from the manufacturer?