Apple IOS 6.1.1 update still wifi greyed out
I have updated IOS 6.1.1 on my iPhone 4s and the wifi option still grey out.
I am sure that it is not about hardware issue because this is a new phone that I have just changed from Thailand before I came back to study in UK.
Now I am having problem with using wifi for 2 months and it is very annoying.
iPhone 4S, iOS 6.1