Jaribu kitu kifuatacho, pengine kuna system files zinazo - Support camera zimecorrupt.
kwanza uninstall program yoyote ya camera ambayo haikuja na simu...
1.Nenda Settings--> security-> then Tick Unknown sources.
2.tumia simu yako ingia google, then search for "NewCameraApp.apk"
3. ukipata hilo file Open and install , restart simu yako
4.try to take a shot and see if solved.