Why isn't my iphone Wi-Fi switch working?

I dropped my iphone 3 into some water recently and thought that i broke it. However, after putting it in a bag of rice for 2.5 days it works again. But when I tried to switch the Wi-Fi on it is grayed out.

You should restore it with iTunes, fixes most small glithes!

Might have toasted the Wi-Fi radio with moisture.

You could try a factory reset or restore of the iPhone but you'll likely exhibit the same behavior if the chip inside the phone is not responding to commands properly.

Sorry to tell you but the phone "wi-fi antenna" coil is broken.

it's fitted around the edge of the phone casing, but it can be fixed, but it cost's (a lot)

SORRY again.

Restore your iphone.

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