*#7465625# para chequear Personalization Status

http://android.stackexchange.com/questions/49962/how-can-i-remove-the-sim-lock-from-my-samsung-galaxy-s-blaze-4g-t-mobile

Turn off the phone. Insert a SIM from another provider into your phone.

Click "DISMISS" on the Enter Unlock Code screen after the phone starts up.

Wait a minute for the phone to power on and settle down.

Go to the dialer screen. Enter *#197328640#The screen will change to the hidden menu as soon as you hit the last # key in the dailer

press  1  DEBUG SCREENPress  8  PHONE CONTROLPress  5  SIMULATIONPress  6  NETWORK LOCKPress  3  PERSO SHA256 OFF

Wait exactly 30 secondspress the menu key on the phone and select back option. This will take you back to NETWORK LOCK screen.Press  4  NW LOCK NV DATA INITIALLIZ

Wait exactly one minute and reboot the phone.Your phone should be unlocked.I tried this on T-989 UVLE1 original ROM with root ON.I haven't tested it on any other version or ROMs or any other phones.Disclaimer: I am not responsible for anything you do with your phone.