Wi-Fi greyed out on iphone 4s

Since June my 4s has been disconnected from Wi-Fi but about two weeks ago it randomly cut back on. Then on Friday it cut off again I've tried all the methods like the freezer method and what not but that works for five minutes at the most. How can I get it too work without going to the apple store?

A co-worked had that happen to his 4S. He could no longer turn Wi-Fi from OFF to ON (it just remained OFF). We tried everything I could find in Apple forums, including resetting networking and backing everything up, totally resetting the phone, and restoring it, and nothing worked. So he got a warranty replacement 4S.

It is a common hardware problem, so if yours is under warranty, get a replacement. Otherwise you are on your own.

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