Originally Posted by mvdl
If Kies Mini shows your device is unregistered it means it does not have a valid rom. I ran into the same problem. I ended up running GTG Unbrick before it would show that my phone was valid. Mine is ready to update but have to wait for my battery to charge up first it said.
Confirmed. Also, attached a Fiddler session before running Kies Mini and it goes here to get the file. Granted it's in that .enc encrypted format but there it is.