I think W200 firmware must have the same CID wih your K310, so try these files:
W200_R4JA011_MAIN_GENERIC_ME_RED50
W200_R4JA011_FS_AMERICA_2_RED50
Melinda_Generic_CDA102737_107_R2A_GENERIC_AMERICA_ 2
EDIT: But, seeing your nick name, I don't think you're looking for "america2", rather "APAC":http://www.topsony.com/forum/cmps_in...=info_lenguaje