1. Please ensure to that the protective film from the charging contacts of the ear buds is removed.
2. If device is not charged from very long time, then keep the ear buds on charging for 1 hr inside the charging case
3. Please make sure that the charging case lid is closed after putting the ear buds inside the charging case
4. Ensure that charging case lid is blinking when ear buds are charging inside the charging
5. Charging case battery should be charged. In case charging case is not charged then ear buds will not get charge