Writing in your own language?

Most of the phones come with several languages installed, the choice what languages are installed is made upon the area where those phones would be sold. Your phone probably came from Hong Kong (this would explain Chinese), a lot of dealers buy unbranded phones in Hong Kong and ship them elsewhere. Nevertheless, the software inside the telephone can be reinstalled to meet your needs. If you are outside of the country (Russia for instance) you still can find dealers who have the software that you need. I have installed Russian/English software on my phone. Now I can read SMS from Russia but I still type using transliteration because there are no Russian letters on the keyboard.