I am trying to restore a set of my iPhone5C backups I made in iTunes to my iPhone4S. My iPhone4S is still running on iOS 7.0.4. I don't want to upgrade it because iOS8 on iPhone4S will almost be unusable (the current iOS7 is bad enough on iPhone4S).
I have tried doing this directly in iTunes using its restore function, but when I do so, iTunes forces me to update my iOS to 8.3. If I refuse to upgrade, the restore function will abort and I cannot continue with my restore from there.
How can I perform the restore in iTunes without having to upgrade my iOS?