I didn't know that it have been discuss before.
Thank you.

-edit-
running the command "setxkbmap -model nokiarx51" or creating that .desktop file not really working.
Before running that command I can type this key: u, i, <- (back key), -> (forward key) and backspace.
After running that command, I can't use that keys anymore.

Did you mean unload the keyboard modules (Main Menu -> System -> Modules)? I try this but the keyboard layout still wrong

-2nd edit-
When I just press u key in the terminal, nothing happen.
But when I press Shift + u, U show up. Ctrl + u also worked as expected (delete all character before the cursor).
This is really weird.