Find "Settings"
Slide your finger left across the display to open the main menu.
Press Contacts.
Press Contacts.
Slide your finger down the display starting from the top edge of your phone.
Press Settings.
Press Settings.
Select option
Select one of the following options:
Copy contacts from your SIM to your phone, go to 2a.
Copy contacts from your phone to your SIM, go to 2b.
Copy contacts from your SIM to your phone, go to 2a.
Copy contacts from your phone to your SIM, go to 2b.
2a - Copy contacts from your SIM to your phone
Press Import Contacts from SIM Card.
2b - Copy contacts from your phone to your SIM
Press Copy Contacts from Device to SIM Card.
Press OK to confirm.
Exit
Slide your finger up the display starting from the bottom edge of your phone to return to standby mode.