no wifi

are u unable to turn on wifi...... is that what you mean ???

go to settings and check if airplane mode is on or off

it should be off and then you should be able to turn wifi on 😉

First thing to try is a reboot of your device. Press and hold the Home and Sleep buttons simultaneously ignoring the red slider until the Apple logo appears. Let go of the buttons and let the devise restart. See if that fixes your problem.

If that doesn't work make an appointment for service at an Apple Store.

Note: with Airplane mode on you can still turn on Wi-Fi. So that is not the problem here.

Read these suggestions from Apple: http://support.apple.com/kb/TS1559

followed your direction, so solved problem, thank you

I had this problem with my iPhone 4S and I tied everything, even two restores. The new iOS burned out the wifi thing. I had to get a replacement phone from my nearest Apple store. My phone is still in warranty, but if yours is not, you have to pay the price you bought it for. I bought my iPhone 4S when it first came out so I would have to pay $199 for my 16GB. If you do end up bringing it to an Apple store, make sure your stuff is backed up to iCloud! I made the mistake of only backing it up to my computer and then when I got there, the guy advised me not to restore from the old update because of corrupt data.

if you need a quick fix before getting it checked out, you can take it out of the case and stick it in the freezer for a couple of minutes. As soon as the phone heats up, the wifi grays out again.

Hope this helped!

My iPhone 4s had the same problem with sporatic bluetooth connectivity, but no wifi connectivity and the wifi button was grayed out. I tried all the things that Apple tells you to do and nothing worked. Took it in to the local Apple store and after running a diagnostic, the rep told me the wifi chip was bad and the only way to fix it was to buy a new phone for $199. My phone is due for an upgrade in 3 months so I am plugging along with a slow phone (since all the internet stuff comes off my phone service only and not wifi). My carrier never told us how to get a service contract on these phones. They just told us the service contract has to come from Apple. From all I have read about this problem, it seems quite common. Too bad Apple can't make a better product.