i just flash my phone with this W580_R8BA024_FS_HONG_KONG_RED52.fbn firmware, i can see chinese, but i cannot use for typing. is the firmware not supported or wat? any suggestion how to add chinese for texting?

by the way, if i really need to reflash agn, wat firmware can support chinese texting? is it APAC? where can i get it ?(if can provide link pls) thank you