I have a few questions before I get my 4 unlocked. It is currently running 6.3 and jailbroke via redsnow 6.1.3. I will be going through my carrier. Questions being.. 1. Can it be unlocked if jailbroken? 2. After approved and I do the back up/restore via itunes, can it stay jailbroke and also can it stay at 6.1.3 or will it automatically install iOS7? Any advice on this is welcome.