Help Accedently i deleted media storage

[Golok]

Accedently i deleted media storage from system/priv-app/. i was tryed to fix this problem by copying media storage app from another same model phone. and i copy the app and odex to my system and changed it's permission successfully. then i reboot my phone. but this did not work. i also reset my phone but it did not work. now how can i fix my problem?

 

[Hadron]

Reflash the ROM (whether custom or official - if official then method depends on manufacturer). Unless you have a nandroid backup, in which case restore that.