I have the Dell 9343 developer edition with the Broadcom BCM 4352 wireless card. I am running BIOS version A07. In the pre-installed version of 14.04, I used an Apple bluetooth mouse and Apple bluetooth keyboard. I am now running 16.04 (clean install) and cannot get any bluetooth devices to work. I have tested with a Logitech bluetooth mouse and a no-name bluetooth keyboard.
When I scan for bluetooth devices, I can eventually "see" the Logitech mouse and Apple keyboard. It takes a long time for those to show up in my devices list though. The Apple mouse either never shows up, or shows up only with some numbers and no name.
I can attempt to pair the Logitech mouse and Apple keyboard. In both cases, I eventually get a "failed to pair" notice.
I have tried the following things, none of which fixed this issue:
* Use the default bluetooth manager or Blueman
* Toggle the radios off and on with the hardware switch (button next to F12)
* Uninstall and re-install the Broadcom driver using the "additional drivers" menu from "Software and Updates"
* Follow the firmware steps documented here: http://hgdev.co/install-ubuntu-15-10-on-the-dell-xps-13-9343-2015-a-complete-guide/
This may be caused by missing firmware. The BT firmware is not in Ubuntu archive and it's delivered with OEM image due to license issue. Please try `dmesg | grep Bluetooth` and see if there's any complain about unable to find firmware.