I could update to 4.4. But does that mean I won't have my phone unlocked anymore or should I just keep it unlocked how it is right now? I had to put the CSC which I found here http://forum.xda-developers.com/show....php?t=2595457
to successfully unlock my phone with RegionLockAway. The only thing I am worried about is if my wifi and my unlock will keep working if I update?
I read that you can downgrade to 4.3 from 4.4.2 to unlock the s4 with RegionLockAway, which I had completed successfully! Just one problem the wifi doesn't work on 4.3. So as I read on