Default Need official JB upgrade for SHW-M250L

As you know SHW-s are Korean models. Please help i need to download official JB update for my phone. My android version is 4.0.4, i need to upgrade to JB. I tried 2 methods including Odin and Kies. But no luck.

-When i flash *.tar file for my phone it fails. It is my 2nd post so i can't include the link of file sorry
-When i connect to Kies with my USB cable it says that the JB update is available. Tried to upgrade but there were the Korean letters(i dont know Korean), i clicked all buttons LOL but no luck. Is there anyone who has upgraded to JB, if you have upgraded please tell me how.