Before you reset your BlueAnt device, it is important to first remove the pairing information from your phone and refresh your phone's memory:

1. Go to the Bluetooth menu on your phone.
2. Delete any pairing information associated with your BlueAnt device.
3. Now switch your phone off, wait for a few seconds, and then switch it back on again.

Now you are ready to reset your BlueAnt device:

1. To reset your S4 it must be switched on but not connected to any devices.
2. You should already have deleted the pairing information from your phone, but if you have not, use your phone's Bluetooth menu to disconnect from the S4 and delete the pairing information.
3. Now reset the S4 by holding down the "+" and "-" symbols together for about 6 seconds, until the S4 announces that it has been reset.
4. The S4 will refresh its memory, delete all current pairing information and automatically go into pairing mode.

You will now need to pair your phone with your S4.