Unlocking C3530
 

Read here others were having problems with the C3530 unlock found these codes on another box forum , hope they may help!

PCK]:#0141*00000000#
[NCK]:#0111*0000000#
[SCK]:#0121*00000000#
[SPCK]:#0133*00000000#
[MCK]:#0199*00000000#

So read codes and use what applies to your phone