The system does not detect an SD Card.
Below are a few possible reasons why this may be occurring:
1. Please power off camera before insert SD card into camera.
2. The SD card read&write speed not good, please use a SD card with class 10 or above class 10.
3. The SD card is broken.
4. The SD card has not been formatted properly. please format sd card to FAT32 format by tool ,the tool download from:
5. The SD card slot is malfunctioning.