Sometimes when you switch Bluetooth headsets from one device to another, it can cause it not to function with the newer device. This happens if the Bluetooth device has been programmed for mutable devices in the past. I recommend restoring your headset to factory settings. I have provided instructions below: Restore headset Caution: This action erases all pairing information stored in your headset.
To restore your headset to original factory settings, with the headset turned on, press and hold both Volume buttons and Call button for 10 seconds until the indicator light is steady blue.