to unlock your samsung t series phone to work with any provider, this may only work on phones made b4 summer of 2007

First, if you have changed the password on your phone, change it back to the default 00000000

Next you need to put in a SIM card from another company that is locked out of your phone.

Then do an E2P reset (this will wipe all your saved data so back up your ringtones and numbers)

..> Code:
*2767*3855
..> After your phone reboots you need to change your NCK code to 00000000

..> Code:
*7465625*638*00000000*00000000
..> Now you can permenently unlock your phone

..> Code:
7465625*638*00000000
..> To verify the status of the locks

..> Code:
*7465625
..> also...
tested on a x495 & also tested on e350e works 100%