My wife locked her phone and cant remember the code can i use a masyer unlock code

What is Mobile Phone Model and Brand?Because if you don't know the code means you can reset it using the master reset code,You can get the master reset code from here
Classicunlocking.com and reset it,then use some default code.0000 or 1234 it's for Nokia Only...You can specify the Mobile Brand and Model that is Important..There You can get MASTER RESET code for Nokia DCT Phones and Alcatel OLD Phones Only...