Add a new language?

[IonNuke]

There is no Japanese language file, since this phone is never meant for the Japanese market. You can *try* flashing with the FS for APAC region. That gives you simplified Chinese support, and maybe Japanese.

Failing that, I know for a fact that either the HongKong or Taiwan firmware works, but you would have to flash both MAIN and FS.

I'm not sure about the simplified Chinese support Japanese characters but I can confirm that HongKong/Taiwan firmwares will support all hiragana and katakana characters. You just have no way of inputing Japanese.