wifi doesn't work with IOS 7

Mokitchener- sorry, I didn't notice that.

Now- my wifi dropped off again some 2-3 hours after I got it fixed.

I had the greeted out Wi-Fi button, frozen screen again. Too awhile but I got it active again- I think I had to actually go into Control Center, turn ON "Access From Lock Screen" them back out, go back in and disable it, exit Settings to home page, power off and then wait a minute and THEN power up. Go back into wifi settings and I was able to turn on wifi again. But this is stupid!!!!!

I went into my router settings and changed my password and changed my security settings to wpa personal and my i phone works on wifi now-I tried all the posts on here and nothing worked -2 minutes on my router settings and i have wifi on my phone -I dont know if you have to change the wpa security or not i just did it- i think it was just the password-Good luck all

This is gonna sound dumb but it worked. I couldn't turn my wifi on, the toggle wouldn't move, I put it in the freezer and let my phone sit for about 10 minutes, turned it off and then back on and it worked!!! Try it, seriously!!!

It's appearing to me that the connection between the iPhone and the router has changed between IOS6 and IOS7. When the same phone tries to connect to the wifi network the network is noticing that the same phone is now connecting using "slightly" different protocol "connection settings" and rejects the connection; sometimes allowing a limited connection. When we reboot the router (local wifi connection) it clears out the remaining IOS 6 connection image and will then fully accept the IOS 7 connection.

This is just my conjecture based on working with computers and networks, every day, since the early 70's

I do have an iPhone 4s running IOS 7.0.2 and have tried the following

- toogle the Airplane Mode "on/off" switch

- power the phone down and turn it on again with the Airplane Mode switch set both "on" and "off" (I have done this repeately)

- Settings > General > Reset > Reset Network Settings, then aply reset (I have done this repeatedly)

- in iTunes: reset the phone to factory defaults and restore from back up

None of the techniques described above did work for me. Still no way to slide the grayed out WiFi "on/off" switch into the "on" position.

What has been suggested somewhere else and I have *not* tried is to

- put the phone in the freezer for a while

- heat the phone up with a blow drier

Assuming that the reports of the above practices fixing the issue are correct, I would infer the problem is that the WiFi driver does not read out the WiFi hardware subsystem's status correctly, with at least some of that status information being stored in some non-volatile memory that gets 'reset' (to who knows what!) when driven out of its operating temperature range. Personally, I am too concerned to apply either of these techniques out of fear it will also erase other important infromation stored in the non-volatile memory with unpredictable consequences or it will even damage the electronics.

I guess, I'll have to resign myself to waiting until there is a new IOS 7 software update. Until then I'll continue in my role of Apple tech support at home and draw the ires of my family. I am still on on IOS 6 (with WiFI), while two other family members are on IOS 7.0.2 and having the above WiFi issue.

What I do not understand is how this issue escaped during Apple's product validation testing. I mean, the iPhone 4s is still and active platform and WiFi is not an obscure feature somebody forgot to include in the test plan.

I tried everything including restoring to factory settings and still had the greyed out wifi. They only thing I did not do was put my phone in the freezer, but after reading a few comments, I decided to go for it. I powered it down and put in the freezer for 10 minutes. After 10 minutes in the freezer, the wifi was back. However, it lasted 5 minutes. I put it back in for another 10 minutes and have had wifi for an hour. I guess I will see how long it will last this time.

In my case the Wifi was not grayed out, so idk if that made a different, I just followed Sunny0308's instructions, well, he suggested 15 mins. in the refrigarator, I put it 10 mins. in the freezer, LOL, then I turned it on, turned wifi on, then I did the General>Reset>Reset Network Settings, after the phone rebooted I connected to my WiFi, then I tapped at the small "i" within the circle to the right of the network's name, then I scrolled down near the bottom of the page and tapped on "Renew Lease".

The 4S now works just like before, I rebboted several times, airplane mode on, off, everytime now it detects all the networks and connect without a problem.

Well, putting my 4S in the fridge for 10 Minutes fixed the problem, at least temporarily. As this implies, this is not a hardware failure, meaning Apple should be able to fix it. Let's hope they will soon!

a hardware issue is exactly what this implies! You think the fridge cooled down your software?? no, it cooled down the hardware enough to work again. The issue is that iOS 7 runs too hot on the 4S and causes this problem.

Muminek wrote:

F*&^%$#U@~`+=C:"{]|\<?K!!!

My joy was too quick, although it lasted a couple of hours. WiFi is dead again! Now I'm sure that EVERY trick you can find on this thread and the web is just not working for my 4S (well, I still haven't tried the fridge).

**** you, Apple!!!

Muminek,

When the wifi died this time, what app were you running just before it died?

I have read on ifixit.com that some apps not fully compatible with iOS7 can cause wifi to become locked up and disabled. And that after they deleted the app, a hard reset, then wifi became useable again. True, it could have nothing to do with the app, and that the wifi came back due to the hard reset.

Guys,

The team of Applesfera.com (spanish site 100% dedicated to Apple) recently notify me this note:

http://appleinsider.com/articles/13/10/10/ios-7-update-brings-more-wi-fi-issues- for-some-iphone-4s-owners

Thanks for all.

Martín

<Edited By Host>

I have had major problems, and had no joy from apple support. Then ramped up charges on my 3G becuase I have no wifi, so I turned my 3G off and guess what... my wi-fi suddenly works again. Don't know if this was a fluke or it will actually fix it for everyone with the problem but it's worth a shot.

This problem already started since the introduction of iOS 6. As you can see when you do a google search on 'iphone 4s wifi'.

The problem is a serious overheating of the Broadcom chip caused by the iOS. (both 6 &amp; 7)

Call it hardware, call it software, call it what you like, but the hardware fails since it can't handle the software.

It it would have been just the software, Apple could have addressed this over a year ago.

But for over a year Apple has been replacing iPhones, first under warranty, now you'll have to pay for it.

And even today there are people experiencing this problem again on a phone straight out of the Apple store.

If it indeed was only software you would at least expect Apple to make a statements to her beloved affected clients acknowledging this to be a software issue. We users wouldn't be happy but at least we would understand. Hey, everyone can make a mistake right?

However Apple is NOT communicating on this issue whatsoever. Not a single word from Apple HQ.

The only communication is posts being deleted.

For this reason, I have the impression Apple is hoping after time this will just blow over, like after the introduction of iOS 6 when the same problem occured.

People get upset, want an answer, get no answer, and at the end buy a new phone and life continues.

That includes me, I need a phone and bought a new one this past week.

Which now is non-Apple. That doesn't bother Apple to much you always have a few unhappy customers...

Now admitting there is indeed a hardware fault, is impossible. Besides losing face, losing stock value, it would mean the replacement of defective phones and refunding of people having had their phones replaced already.

A nightmare scenario.

But most people give up, as you can see in this discussion.

The amount of active participants has drastically reduced. People accept their faith. David versus Goliath

So at the end -and that is what they seem to wait for - Apple gets away with it. But it just is not right.

It shows greed and very little sense of responsibility and respect for her clients.

6.8 billion profit in the third quarter of 2013... Apple should be ashamed of herself.

They will replace it for free if you bought the extended warranty. The warranty that comes with it last for a year, I THINK, and the extended warranty covers you an additional year- at which point a lot of people upgrade. I've had to get 3 replacement phones due to this wifi issue, and all were at no charge.

I bought my 4S as a second hand device in Hungary and it's out of warranty since aug of 2012. Yesterday i went to the Apple store in Manchester UK to ask them about the grayed out wifi and first they told me that the replacement would cost me 150 £ without warranty. After I showed them this discussion and they saw that it has almost 64k views they had a little talk with the store manager and told me that they will replace it FOR FREE.

So people when you go to the local Apple store dont be afraid and show this discussion to let them know how serious this is!

Sadly i got ****** up with my device when i bought it secondhand becouse it's got modified inside and it has missing components (screws, security something at the dock) and changed battery so they couldn't replace it. But they would if it would be original and with no warranty.