Originally Posted by nossmeet
I came from stock 4.1.2 rooted, I'm guessing this means I can't restore JellyBean system data/apps, only from other KitKat ROMs?
Before I continue, disclaimer, I'm not a dev or anything. I'm just trying to help with what I've picked up over my time here.
Hopefully you followed the nandroid step. Go back to your stock ROM and have Google backup your contacts. It's never let me down in restoring my contacts on a new ROM.
Sorry for the confusion, but yeah, it's a bad idea backing up system apps, especially with the changes to the dialer (among other things) in Kitkat. Games and other apps should be fine, though.