The SD card it is the external storage that allows you to store more photos, videos and files on your Android device. If it requires formatting, please use our tutorial.
In order to format the SD card on your Android device open the list of Apps. Afterwards find and slect Settings and from the following list choose Storage.
Scroll down and touch Format SD Card and follow the prompts.
Read the warning message and touch Format SD Card again. (Please note: if this option is disabled touch Unmount SD card first.). Touch Delete All to complete the memory card formatting.