Is it possible for 8890...

[JodiLew]

Is it possible to upgrade the nokia 8890 to nokia 8855? Can someone direct me on the instructions? Can I do it like the post below:
http://nokiafree.org/forums/t7407/sd2e535d69b545e38cc26938c6f425590.html

Thanks... I'm desperate... please help. I want chinese input to my phone.