I am using a rooted device and i thinking to go back to stock OS. I wanted to that if I change my OS do I have to request a new code for the device?
Yes. You need to reset it at members.blloc.com.
Next time, I encourage you to do a search instead a creating a new thread. All basic questions has been answered either in the FAQ thread or other threads.
Sorry I couldn’t find it there so I posted.