Phone security code N73

Problem:

Sir I entered Menu ...tools...settings......security...phone and sim....lock code ...Here it asks for a lock code ..which i have forgotten,...I entered many codes but it ain't working and it is not asking for a master code...It just says ... lock ocde entered incorrect five times phone will unlock in five minutes...Please guide what to do...

Solution:

1. in order to solve your problem type *#06# at mobile screen, it will show you IMEI no of your mobile .Send this IMEI no to me, i will reply you with the unlock code which you can use to change the security code of your mobile which you have forgotten.......................waiting for your mobile IMEI no ...
2. ur code will be 1 2 3 4 5