iPhone screen repair and jailbreak

I have a iphone 5 with a cracked screen and lines across the screen. The digitizer is also messed up because the screen randomly touches things. Will apple care if its jailbroken i hear they dont touch your data because i called and asked but my lock screen is themed. But i cant really get into winterboard to change the theme back cause the phone is so messed up. If i have to restore it i will but im on 6.1 and want to keep it that way so i can keep my jailbreak.

edit: how can i restore and still be on 6.1. Also anyway to usb file view and change the theme.