I assume that you have a W580. To have persian on the phone, you will use this files:
W580_R8BE001_MAIN_GENERIC_LA_RED52
W580_R8BE001_FS_S_ASIA_LEVAN_RED52
HB1-06_Gen_CDA102568_110_R8A_GENERIC_S_ASIA_LEVAN

I selected the newer version of the firmware... you could try also with older versions.