Follow these steps to register your sim card
Steps to re-register your SIM with the Ghana Card
Dial the short code *404#
Enter Ghana Card Pin ( Note: Enter letters and figures without hyphens)
Confirm Ghana Card Pin
Enter Surname
Enter First Name(s)
Enter Date of Birth (Format: DDMMYYYY)
Select Sex
Confirm Details
Submit Details Provided After Confirmation
Visit your service provider with the unique code to complete the registration process
Source: www.diamondfmonline.com