IMPORTANT NOTE: Your earbud requires firmware version v4.0.0 / v4.1.0 to work with this earbud. Please confirm your firmware before making purchase.
How to pair replacement earbud:
Set the headset into the charging case and leave the lid of the charging case open. Then, press and hold the initialize button of the charging case for about 15 seconds or more. The indicator light will start start flashing (orange). Release your finger within 5 seconds after the indicator (orange) on the charging case starts flashing. The initializing is complete.