Possible Duplicate:
Can I use my device on a different carrier?
I have unlocked it and I am trying to s-off, I am ignorant to cell hacking/programing ad don't know if I am doing anything that will help or hinder my operation. I have just been following youtube or sites advice but so far nothing has really helped. I have the t-mobile sim card but us cellulars programing is preventing service.
Please help(and use laymans terms cause like I said I am not too savy when it comes to this).