If you’re using iTunes and see a message that says “Back Up Now” is greyed out, it means that you can’t back up your device because it’s locked. This can happen for a few reasons:
-You’ve disabled backup encryption in iTunes
-You’re using a newer version of iTunes and your device is running an older version of iOS
-You’ve connected your device to a computer that’s not authorized to back up your device
If you see this message, you’ll need …