RT3290 is actually a WLAN/WIFI adapter which has a bluetooth capability in it. WLAN connection works but the bluetooth doesn’t. So, I download this https://launchpad.net/~barracuda72/+archive/ralink/+files/rtbth-dkms_3.9.3-0ubuntu1~ppa3.tar.gz, extract it, and make, make install. Finally, modprobe rtbth. DONE!
If you do have using newer version of Ubuntu, it just much easier. You can just add ppa:barracuda72/ralink repository, apt-get update and install rtbth-dkms package.