SamyGO

i flashed wrong region firmware on, i flashed EN32Eh5000 on UA40Eh5000, now my tv is not setting cable channels and screen resolution is also out, and dark. when i turn on tv mesg display main baord changed. how can i flash back UA frimware again i tried so many things but no luck tv is have no audio and colorless screen but all things are playing in usb media movies etc etc with sound. i can i reflash UA40Eh5000 firmware again?

sorry for bad english