A. The device supports up to 64G Micro SD card;
B. Please connect the Micro SD card to a computer or other digital devices to check if it can be recognized normally. If it can be recognized, please format it. If not, it is a defective Micro SD card. Please use another card to try again.
C. Please power off the device, insert the Micro SD card, then acces the APP to check if it can be recognized normally; if not, please contact our customer service at firstname.lastname@example.org.