See also here: http://forum.xda-developers.com/gala...chive-t3413785
I have created a little tool to download and check latest Samsung firmwares since it seems CheckFUS is not working anymore.
To get Region code and other info from your phone use Phone INFO ★Samsung★ app by @vndnguyen. The download function features Pause / Resume.
You can use it for all Samsung devices, but I have only tested it on Galaxy Tab S. It requires .NET Framework 3.5 (Microsoft Visual C++ 2008 Redistributable Package (x86) and Microsoft Visual C++ 2010 Redistributable Package (x86) installed)
If you run it via command line, you can use it to just decrypt .zip.enc2 and .zip.enc4 files.
Please let me know if the tool worked with your device and if you found any bugs (note, it's still beta).