Hi and welcome to Top Sony.

Could you explain what you mean by unlocked to the rest of the world. Do you mean you installed a generic Main and Fs or did you just have it unlocked by a pay per service provider like davinci etc, or did you patch your phone?

You have to be more specific in your questions as this way it aids everyone else in answering your question as there are some very knowledgable people on this site.

YOU ALL KNOW WHO YOU ARE!!!!! ;)