How to enter my Unlock Code on Nokia ?

Model : All Nokia

1 - Switch ON your phone without SIM Card,
2 - Compose #PW+CODE+1#

The letter P appear after press 3 times quickly the button star ( * )
The letter W appear after press 4 times quickly the button star ( * )
The letter + appear after press 2 times quickly the button star ( * )

3 - The phone show "SIM Restriction Off" and was unlocked !