1) After the device is connected to the mobile phone, click [Settings] icon in the Device list, select [Recording settings] to enter Recording settings interface, click [Format SD card], and wait for the camera voice prompts "Formatting is completed". After the formatting is completed, the SD card will be emptied
  2) If the device voice prompts "Formatting failed", please take out the SD card and use a card reader to put the SD card on the computer to format the SD card
  3) If the SD card can not be formatted on the computer or the formatting fails, the SD card is damaged, please try to replace the SD card

  Note: The recorded video can not be restored after the SD card is formatted. Please operate with caution