Share your experience!
I own both a Z3 Comact and Z3.
I would like to back up both and swap phones. Restore the the Z3c to the Z3 and reverse. IE, when I give my wife her phone back it will have all her settings, apps, sms, mms, and pictures. Just on the Z3.
Will that work?
You cannot restore a backup file on a different device or firmware. What you can do is use xperia transfer.