Adding language or character

I bought my Sony Ericsson T707 cellphone in Hong Kong. It has the languages English and Chinese. Since I live in Sweden, it's causing some problems when I'm texting my friends and not being able to type the characters å, ä and ö.

So my question is, is there a way to add a language to your phone?
If that's not possible, I'd be grateful if I could just type the letters åäö, since I don't use Quick Text/T9 anyway.

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› See More: Adding language or character

It is not possible to add or removed languages from your phone.

If the language is installed you can change it by going to Menu-Settings-Language-Writing language.