Hi,
Have you entered pairing mode on the BT headset?
Pairing is the process required to create a link between BLUETOOTH devices to allow wireless connection.
You must pair a device with the headset to be able to make a BLUETOOTH connection for the first time.
Before you start pairing operation, make sure that:
The BLUETOOTH device is placed within 1 m (3 feet) of the headset.
The headset is charged sufficiently.
The operating instructions of the BLUETOOTH device is on hand.
Enter pairing mode on this headset.
When you pair the headset with a device for the first time after you bought it, or after you initialized the headset (the headset has no pairing information), press and hold the POWER button for about 2 seconds when the headset is turned off. The headset enters pairing mode automatically.
When you pair a 2nd or subsequent device (the headset has pairing information for other devices), press and hold the POWER button for about 7 seconds.
So:
Enter pairing mode on the BT headset, light should be flashing
Switch on BT on the Himedia and scan for the BT headset
When the BT headset is found and listed by himedia, press pair/connect.
It should now be working.
Hope this helps.