I want to get rid of all my stuff on it before I sell it to the person. I was thinking of restoring it. But can I do that without it updating to 4.xx. And is there any 3.1.x firmwares around for download that I can use because I'm not sure if I still have a 3.1.x restore saved. (Have I4 now.) Also I think they want it unlocked but am I able to do that without it having service?