on 06-01-2013 00:04
Should be something like 4.1.1 or 4.0.3/4.04.
Build version should reflect whether you have a carrier ROM or a multi-csc sim free one.
on 06-01-2013 00:14
What message do you get when you go into software update/check for updates?
on 06-01-2013 00:26
I would uninstall Kies completely and reinstall from http://www.samsung.com/uk/support/usefulsoftware/KIES/JSP disabling your firewall and antivirus. Try connecting and updating before enabling firewall and antivirus again. Make sure you have no other programmes open and nothing else connected to your PC.