Backup contacts, photos, and files to increase device memory or transfer to another device.
INSTRUCTIONS & INFO
Inserting a memory card (microSD card) into your device allows you to transfer and store contacts, music, pictures, and videos. MicroSD cards are sold separately.
To save contacts to the SD card, from the home screen tap the Phone icon.
Tap the Menu icon.
Tap Import/export.
Tap Export to storage.
Tap OK.
You will be prompted about the transfer, now you have successfully transferred and backed up your Contacts to an SD Card.