Samsung SCH-100S Owner's Manual page 40

No international MENU + 0 + lock code + 4 + 3 +
call
No special call MENU + 0 + lock code + 4 + 4 +
Changing lock code MENU + 0 + old lock code + 3 +
new code + STO
Automatic lock MENU + 0 + lock code +
2 +
One-minute beep MENU + 0 + lock code +
during conversation 5 +
Service area change MENU + 0 + lock code +
alert 6 +
Choosing NAM MENU + 0 + lock code +
9 +
System reset MENU + 0 + lock code + 0 + STO
78
+ STO
+ STO
+ STO
+ STO
+ STO
+ STO