I have Dell vostro 3500 Laptop. I Installed Ubuntu 12.04. It doesn't detect my bluetooth. below is my information.

lsusb | grep Bluetooth
Bus 001 Device 003: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of BCM2046 Bluetooth)


lsmod | grep bluetooth
bluetooth             158438  10 bnep,rfcomm


rfkill list
0: brcmwl-0: Wireless LAN
Soft blocked: yes
Hard blocked: no
1: dell-wifi: Wireless LAN
Soft blocked: yes
Hard blocked: no

(wifi working fine. I disabled it using network menu. So, it's fine)

dmesg | grep Bluetooth
[   21.981835] Bluetooth: Core ver 2.16
[   21.981872] Bluetooth: HCI device and connection manager initialized
[   21.981877] Bluetooth: HCI socket layer initialized
[   21.981881] Bluetooth: L2CAP socket layer initialized
[   21.981891] Bluetooth: SCO socket layer initialized
[   21.986047] Bluetooth: RFCOMM TTY layer initialized
[   21.986059] Bluetooth: RFCOMM socket layer initialized
[   21.986065] Bluetooth: RFCOMM ver 1.11
[   22.361783] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   22.361791] Bluetooth: BNEP filters: protocol multicast

So How can I fix this?

I saw other place (I don't remember which site) They said, some times, when in windows, if bluetooth disabled by windows driver, It can't be enabled by linux. So, I should install windows and enable blueethooth from windows and then re install linux. That is impossible for me, because I don't have Windows installation media.

But I tried this, which is I installed windows xp on virtual box. Vbox showed me thow unknow USB devices. I connected them and installed windows bluethooth drivers to xp. But it didn't ditected Bluethooth either. Also, when I set off mode in hardware switch, those unknown devices disappear from Vbox usb device seletcion menu. So, they are definitely something to do with wifi or bluethooth.

Please help me..