I can't use my Bluetooth with Ubuntu 12.04 64bit .

I have installed bluetooth, gnome-bluetooth and blueman packages. But i'm getting No adapter found error.

eray@eray-vaio-ubuntu:~$ sudo hciconfig hci0 reset
[sudo] password for eray: 
Can't init device hci0: Connection timed out (110)
eray@eray-vaio-ubuntu:~$ rfkill list
0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
1: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
2: sony-wifi: Wireless LAN
    Soft blocked: no
    Hard blocked: no
3: sony-bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no
eray@eray-vaio-ubuntu:~$ sudo hciconfig sony-bluetooth reset
Can't init device hci0: Connection timed out (110)
eray@eray-vaio-ubuntu:~$ 

I'm remambering, i was able to use my bluetooth with Ubuntu, about 7-8 months ago. So Ubuntu supporting my bluetooth device.

How can i install my bluetooth and solve this problem ?

NOTE , I've read a lots of question about this. Generally there are 3 answers.

1. Upgrade to 12.04
2. execute sudo hciconfig hci0 reset command
3. unblock your device if it's blocked.

But as you seen, none of them helped me. Because of this, i'm asking this question.It's not a duplicated question.