wifi doesn't work with IOS 7

I have a 4S that was working fine after the update until yesterday, when I had the same probem as well. Luckily I had a month of warranty left on my phone so I was able to go to the apple store and get a new 4s for no charge. The guy at the genius bar was also telling me the same thing that its a hardware problem and not a SW issue...

Ok I ve done followings and my wifi is back. Turn iphone off, Put iPhone in a seal plastic bag and put into refrigerator for 10min. Then turn on, set it into airplane mode, reset network setting. After this, my iPhone can find wireless and can get connection. Need to input wireless password again if required. Hope it woks forever since this is my replaced iPhone for the previously one which got wifi control bar grey off and could not be fixed. Apple just simply give me a new one with 3 mon warranty.

I made an appointment for today at the Genius Bar and took in my little bad boy. We discussed the problem, he verified that it was happening and did not go away after resetting Network Settings. Then he ran a diagnostic from a connected iPad which reported a failed WiFi antenna. At that point he agreed to a warranty replacement. I had 11 days left and was putting off the visit until it failed reliably as I didn't want to have the "TV Repairman Problem" (for those old enough to remember when TVs got repaired they were notorious for wonking out right up until when a repairman came out to look at it. Yes, they came to your house ;D)

So, whether it was really an antenna problem, or that's just what the diag coughs up, we can't say. It doesn't seem right to me that a broken antenna would only fail after an OD upgrade and then fail in a progressive manner. OTOH Apple was certainly helpful fast and friendly with me on the warrantly issue. Now I have 90 + 11 days to see if the new one fails. I'll certainly report back if it drops dead again, either in or out of warranty.

Best of luck to everyone else getting a resolution.

To Danifrompak,

I've noticed recently that my iphone5 (ios7.0.4) is not listing out SSIDs of my neighbors anymore.

My PC's Wifi search tells me these neighboring Wifi stations are about 23% power.

So what if, just what if, Apple has implemented some kind of power saving code that keeps a record of the neighboring Wifi's sees that I don't join into those wifis everytime, then simply don't display them?

Or, ios7.0.x does not display SSIDs of lesser strength, let's say, lesser than 25% strength?

Or both, ie don't list out SSIDs that we don't log into, and don't list out SSIDs that have weaker strength.

If this is true, then if for some reason we don't join our own wifi router successfully, this code may stop displaying our wifi router after multiple failed attempts.

I have seen this effect at my friend's house. After I typed in the wrong password many times, that wifi router's SSID no longer shows.

So how do we work with a router that doesn't get its SSID shown?

We change the SSID to another name for the time being.

We also change the security to none for the time being.

If we can log in with these settings, then we change the settings back to what they were before.

Give it a try, and let's see what happens.

The "Airplane Mode On" and "Network Reset" worked for me (so far).

Besides dropping wifi, mine also sporatically drops cellular and exhibits a strange display issue. I've captured the issue in this video: https://www.youtube.com/watch?v=9hCGYsQ8pVI

My first issue with this glitch happened after I landed on a flight when I used the airplane mode quick access button. It has been happening about 1-2 times/day since then and requires a hard reset. Recently, a hard reset has not been clearing the issue.

I took it into the local Apple Store where it was diagnosed as a hardware issue. The local geniuses (and the AppleCare reps via phone) were unable to offer me a replacement as I was ~60 days out of warranty on my iPhone 5. I passed on the option to get a new phone for $279. Now I'm hoping to either limp along until next fall when the 6 is introduced, or buy something cheap like a Moto G and give Android a spin.

I have good news for you. I experienced same problem as you are facing and spent two days tweaking all kind of settings and various online solutions using youtube videos. tried to format, restore to factory setting. deleted all data and content, network settings.. ... nothing worked. so WHAT WORKED?

you wont believe it. but this new silly method worked great for me and i am so confident that it can solve ur problem too.

STEP 1: use any hair dryer to heat up your iphone. you have to do it for approximately 5-7 minutes till you get error message on your phone ' temperature warning, please allow your phone to cool down to use again'

STEP 2: once you get warning message on screen, take your phone and store in fridge (cool) place for approximately 10 minutes.

FINALLY, Once you do that, you wifi , bluetooth, everything will be up running without any issues. I didnt blv this silly method as i am IT-savy person, but this method worked GREAT for me. let me know if it worked for you too.

you have to thank me for helping you 🙂

Fede23 wrote:

I tried but Nothing. I also tried to reinstall IOS 7 but I have the same problem. It's strange because with IOS 6 it works very well. Maybe I must wait another upgrade to fix bug? (If it's a bug)

it isn't a bug. It is something wrong with your setup. You might have to reset your wifi router.

This is what I did and it worked...Download the Witness Driving app and overheat your 4s using the app with all settings enabled and make sure it is charging as well... it may take 1/2 hour or so (maybe longer)...after that let it cool down (I held mine out the car window while driving) and then just do a reset of all settings. It worked on mine and it also fixed the battery issue as well. It went almost a day before it dropped to 99%, just sitting (not being used). It heats up right by the wifi chip and when you are running video, nav and charging all at once it gets toasty...enough to do the trick. It's been fine for a week so far..... http://youtu.be/FBi7wkatyPQ

Mine worked for couple of days n then the same .. 😢😠

This time I tried this

1. Switching on Airplane mode

2. Remove all wi-fi connections i.e. forget...

3. switch on blue tooth

4. Re connect Wi-Fi by entering password

5. Switch off the Airplane mode (with Wi-Fi connected )

n I was lucky ...... all WiFi, SIM, Bluetooth connected !!!

Hope luck turns on u as well

Hi guys,

I hope my story will be usefull for some of you.

I got a problem with wifi in mid January (so, not right after I updated iOS to version 7). One of a sudden connection just disappeared. I tried reseting connection settings (didn't help), hard reseting the phone (didn't help), turning on and off airplane mode in certain sequence (didn't help). Then I just decided to wait for an iOS update, hoping it will solve the problem. Recently, after about 4 weeks without a wifi, iphone picked it up again and was connected (before it wasn't even detecting any networks).

After working properly for two days wifi disappeared again in the same way. This time, feeling that the phone itself is quite warm, I just placed it in the freezer for about five minutes. And it helped. Right now it's working fine. Not sure for how long 🙂 But I hope for the best.

So it's seems pretty clear that iOS 7 causes hardware overheat for some 4s devices. Hopefully it will be fixed in the next update (I just can't afford to carry around a portable freezer with me).

Regards

Hi,

I was having a problem forever connecting to Wi-Fi do to iOS 7. I have tried just about every suggestion online possible. But what a brilliant man at radio shack told me was you need to press a button on your router called WPS. If you do not have WPS on the back of your router you need to get a router that does have that and connect it to your router. This is the only thing that has worked. Most of the Internet companies have not updated their systems as of yet it seems. I really hope this helps someone as I was very very frustrated.

Timothy Rock wrote:

What do you mean it can't be both? It is that exact combination.

I stated that Apple was loathe to admit it's error in rolling out a less than tested IOS due to a premature commitment it made to stockholders.

And now it will say this officially? Where's your logical deduction?

On the 66 pages on this single thread alone the complaints come from around the world. Read.

Keep drinking Kool Aid Mr. Logic.

Keep living in Dreamland.

Wrong again. It's a hardware issue in the vast, vast majority of issues. That's why people are asking to get their devices replaced, for free, outside of warranty. If it wasn't a hardware issue, then why replace that device?

If it was the operating system, then EVERY unit would have the same problem. But since it doesn't (and this is where we use logic), that means it cannot be the iOS.

Three components are involved:

1) Hardware

2) Software

3) User Data

Well, we've eliminated the Software. So, the next step is to restore the iPhone as new, which removes all User Data. Once you've done that, the only possible variable left is the hardware. If the wi-fi is still greyed out, after restored as new, then it is a hardware issue.

This is called logic. Use it sometime.

The problem has occured for some users after installing iOS 5. Or iOS 6. Or updating one of those operating system to an incremental update. Not just iOS 7. So, again, your conclusion is wrong, beacuse it's based on faulty data. If this was a brand new issue, never seen before, that only had occured after iOS 7 released, maybe then there would be some validity.

But that's not the case. If need be, I'll search the forum for you to show you reports of wi-fi greyed out in previous iOS versions.

Or actually, why not do that yourself? Use the forum search function and educate yourself.

As to why the issue occurs after an update? An iOS update causes the processor to work at a higher level than normal. This generates heat, higher than normal operation would. A defective wi-fi chip is likely to be more susceptible to heat than a non-defective one. So, after enough heat is applied to the wi-fi chip, it fails. This is also why sometimes there's a report of wi-fi failing after updating a lot of apps at one time, or after downloading a lot of data at one time, or after the iPhone has been outside on a hot, sunny day.

Heat is the culprit, not the software code.

Timothy Rock wrote:

TJBUSMC1973 - Well this discussion is about IOS 7 and it is the only IOS I have personally had a problem with. However, by your own admission, this has been an ongoing problem that Apple is obviously aware for quite a while. Yet it makes no effort to replace a WiFi chip that can withstand the rigors of APPLE'S Updates. Again, APPLE'S updates. Did Apple warn anyone that updating an iPhone may cause these heat and WiFiu problems? **** no. Yet you continue to maintain that Apple is not at fault at all and is, indeed, a generous benefactor by offering $200 fixes to $600 phones that the Apple IOS update caused the $600 phone chip to overheat.

A known problem not fixed in three updates and it's is the buyer's problem? Well, yes it is because Apple accepts no responsibility for costing Apple phone owners a bunch of money and headaches. But heat isn't the problem. Apple's lack of transparency and Apple's inaction are the problems.

Keep drinking the Kool Aid.

Apple provides a one year warranty on all iPhone 4S units, as well as the option to extend that by an additional year. If the unit is under warranty, Apple replaces it for free. How is this difficult for you to understand?

Additionally, it is a very, very low percentage of units that have the hardware defect. Lower than the average for smartphones in the industry. You got one of the few (percentage-wise) that have a defect. Them's the breaks, kid. Tough luck.

In previous posts, I've stated that I think Apple should be handling it differently. I personally think that Apple should replace the iPhone 4S units that have greyed out wi-fi (as long as that is the only problem with the device), for up to a full year after the warranty or AppleCare coverage expires. But that was never the point I was debating.

My point was the SOURCE of the problem. Hardware, not software. And you want to know why I'm trying to get people to understand that it's the hardware, and stop trying to claim it's the software?

Because if you blame the software, then you have no valid argument, because the terms & conditions of the iOS update (that you MUST agree to prior to installing it on your iOS device) make it very, very clear that anything that happens as a direct or indirect result of the iOS installation is the sole responsibility of the user, not Apple.

The legal terms of the operating system mean you can't claim an issue based on the operating system. However, if it's a hardware problem, then you have a slight chance at getting something out of it.

In short, blame the software, and you have no case.

Blame the hardware, and you might have a case.

From: https://discussions.apple.com/thread/4638071?answerId=24551640022#24551640022

i.e.: "If the wi-fi chip was defective from the very beginning, and only the process of an iOS update would create enough stress to reveal this defect, then there was no way for me to report this defect during the normal warranty period. No other operations on the iPhone created enough stress to reveal this defect, which was present all along. Therefore, because the device was defective from day of purchase, but there was no way for me to test for that defect, it was impossible for me to report it prior to it being revealed. The fact that it only revealed after the warranty expired should not infringe upon the validity of my claim."

Go into Settings-General-Accessability-reduce motion and turn that ON. it's the effect of your icons 'floating' on your home screen: useless and energy consuming.