hi, i never use the bluetooth headset but just took it out yesterday and managedto connect it successfully once to a k750i but could not connect it to k610. It later did not connect to k750i again. The green light flashesd on the headset and bluetooth is on , on the phone yet no devices found. Initially when it did connect the light on headset flashed between red and green indicating it was working i.e bluetooth was activated on the headset. This has not happened since. Do i need to switch bluetooth on the headset, if so how?