help stock rom flash.

Onno Manush Foysal...

ami symphony w65i use kori.
castom rom flash deyar somoy set ta soft brick hoy.
ami 2 ta stock firmeware download koreci. but 2 ta te cache.img file ta missing.
ekhon stock rom flash dite poarteci na.
PLZ!!!!!!!!!!!!!! HELP ME .01843628896

call me urgent...........