Bluetooth Device not working anymore...

Hi,
I had been using this thinkpad machine from 2010. Everything was workign fine. But I don't know what and where something went wrong. THE BLUETOOTH DEVICE STOPPED WORKING.
The light on the panel of machine turns off for a couple of seconds when the machine is turned on but after that the light is turned off and it never come back on unless or untill next start. (the light of BLUETOOTH device is turned on even before something appears on the screen).
When I try to install drivers it asks to check the device is connected properly etc, but neither I can install the driver nor it is useable.
Please help me.
thanks
Regards

Your Bluetooth device inside your computer seems to be turned off. Press Fn + F5 key and see if your Bluetooth Radio is turned on.

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