Nokia 100: - U.S. Models

*3001#XXXXX 
Where XXXXX is the security code, 12345 is the default
Emergency Number (such as 911) #
2nd Emergency Number (such as 911) #
language code (0=English, 1=French, 2=Spanish) *
Lock Code (you should probably leave this as 1234) 
Store 01 Store
10 digit MIN (phone number in USA, other locations may vary)
Store 02 Store
System ID *
Access Method (use 1) *
Local Use Mark (use 1) *
Initial Paging Channel (In USA use 334, other locations may vary) *
Access Overload Class (use 15) *
Group ID Mark (use 10 for USA..others ??)
Store O3 Store

Turn off then on.