w580I - How to add chinese character writing?

[enono]

chichi, you got to know which chinese characters you want to have, simplified chinese, complex chinese hong kong, or complex chinese taiwan?
if you want simplified chinese, you have to flash with

W580_R8BA024_MAIN_CHINA_LA_RED52
W580_R8BA024_FS_CHINA_RED52 or W580_R8BA024_FS_APAC_RED52

and, if you want complex chinese for taiwan, ie. with zhu-yin, then you'll need

W580_R8BA024_MAIN_TAIWAN_LA_RED52
W580_R8BA024_FS_TAIWAN_RED52