Satellite L755D Bluetooth doesn't work

Dear forum users,
My problem is:
In my laptop is a
*Atheros AR9002WB-1NG Wireless Network Adapter*
The description tells me, that this is a combination adapter for WLAN and BT.
WLAN works fine, BT doesn't!
Did not find any switches on BIOS.
after looking for information, I installed bluetooth filter driver and stack.
The installer asked me to switch on the BT device. WiFi is switched on, but BT seams not to be recognized.
I don't really know, what to do... Any diag tool? Need further driver or software? Could anyone tell?
Please no answers like "RTFM" or "g00gle is our friend" ! I searched for solutions online and on documentation, but didn't find anything!
Many thanks...
kind regards
Stefan

Indeed the notebook seems to support the Atheros 802.11(b/g/n) AR9285 WLan chip including the BT as well.
Maybe you should try to install the WLan and BT again.
I mean you should uninstall the WLan driver (in device manager)
You should also uninstall the Toshiba BT stack and the filter in control panel -> programs & functions
Go to device manager and check the device list for some BT devices. If no BT devices are listed there, close it and install the CCLeaner in order to clean the system and registry.
Reboot the notebook and follow with the installation of WLan driver, Atheros BT driver filter package and the Toshiba BT stack.
Then you have to reboot and should enable the BT using function keys to finish the BT installation.

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