As the title says I can't flash it (2.3.6 gb). Everytime I connect the phone in download mode I get 'USB Not Recognized' error, I've updated KIES drivers already and nothing happened.
Sorry, but I don't know how to help you. I got the same problem when I used my Windows 8 PC.
On my WinXP PC, it's worked.
I'll give a try on XP , too. I tried on Win 8.1 and 7 and didn't worked.