Question: how to use sd card on samsung galaxy grand prime?
Answer: 1 Gently pull the cover off the device, using the slot on the side (1). ... 
2 Remove your device's battery.
3 Carefully slide the microSD card into the microSD card slot. ... 
4 Insert the battery into the opening on the back of the device, making sure the contacts align (1). ... 
5 Replace the back cover (1).