How can i get a code to unlock my samsung galaxy sch1200 from verizon

SOURCE: unlocked verizon blackberry world phone wont work with t-mobile

i believe i had had the same issue.

i unlocked an at&t phone and put in the sim card and it wouldnt work. i called tmobile and the representative told me that they have to register the sim card to their network or something.

so just call tmobile and tell them you got a new phone and want to register it so the sim will work in the unlocked phone.

SOURCE: need unlock code

It should work. That is how AT&T and T-Mobile's networks work.

SOURCE: am from kenya and have

YOU can get the Unlock code here
http://www.wickedunlock.com/alcatel-ot-305/rs11wp9/

SOURCE: need puk code for verizon

ur defalt phones codes is 12345 or 00000 u can use it
Default 4 Digit user code: 1234 or 0000
Default 6 Digit Security code: 123456 or 000000
Default 6 Digit Security code: 000999 or 1122
Type *#06# at the mobile screen to know IMEI no of your mobile.
send the IMEI no to me and i will reply you with unlocking code.
IF Problem not Solved So
Please New Software install in the Phone Problem will Solved
OR:
If For puk & pin cod problem So Please
Very Best Solution:You Go To Service & Sim Office and Get The Puk code And Pin code From Office oprator
Enter The Puk code and Yes
Enter The pin code and Yes
So Puk code Open and Problem will Quickly Solved

Well if you are tied to a particular network all you have to do is to unlock your phone to use it any other GSM network. You can get the unlock code through online. Give your IMEI number & get the unlock code for ur mobile .............You also get through online..........I will suggest the website Unlock-Zone.com which is doing good service .....you can approach this website.