Place the earbuds in the charging case and leave the case open. 2. Press and hold the charging case button for 10 seconds until the LED strip flashes white rapidly three times. This confirms that the reset is successful. It's important to note that when resetting the earbuds, they should be properly connected to the charging case. To ensure a successful reset, when returning the earbuds to the charging case, make sure that you carefully align the charging contactors between the earbuds and the charging case. If either earbud is successfully placed back into the case, the LED strip will light up white and then go off.If the LED indicator on the charging case does not light up, please check the following:1. Ensure that the charging case and earbuds are firmly connected.2. Confirm that both the charging case and the earbuds have sufficient power.3. Clean the charging pins using a dry cloth to remove any dirt or debris that may hinder the charging process.