hello cricket users i have a question i have a tmobile galaxy s3 that i did a unlock for free using this method i had wanted to know will it effect my phone in any way or can i reverse it and take it off

1) If you have the other SIM card you will be using, plug it in.
2) Reboot your phone.
3) Use the phone application to dial the following keys *#197328640# .
4) A screen should pop up, select "Main menu" then [1] UMTS.
5) Select [1] Debug screen, then [8] Phone Control, then [6] Network Lock, then Options [3]Perso SHA256 OFF, exactly in that order.
6) After choosing this option, wait about 30 seconds.
7) Press the Menu button on your phone, then select Back.
8) You should now be in [6] Network Lock.
9) Select [4] NW Lock NV Data INITIALLIZ.
10) Wait for about 60 seconds, then reboot your phone.