Wifi grayed out after iOS 6.0.1

Very disappointed from apple,

My wifi is grayed out even after installing iOS 6.0.1

My Iphone is still under warranty from apple(3 months old) but I don't have an official apple store in my country.

Have done evreything from hard start to restore from dfu mode,

Nothing helps.

Is apple doing anything to resolve this big big problem that so meny people have???

If they don't fix it soon ill have to change to galaxy 3!!!