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iOS 7 update brings more Wi-Fi issues for some iPhone 4S owners

post #1 of 102
Thread Starter 
iPhone 4S owners have taken to Apple's support forums by the hundreds with complaints that iOS 7 has caused a new round of problems with the phone's Broadcom Wi-Fi and Bluetooth controller, echoing issues that reared their head during iOS 6's release.

iPhone 4S / iOS 7 WiFi issues


The issue reportedly causes the WiFi option in the iPhone 4S's Settings app to become unavailable, or "greyed out." Other iOS devices ??including the iPhone 5, iPad 2/3, and iPad mini ??are also cited, though sparingly, as being affected.

Many users report that cooling down their handset's hardware by placing it in a refrigerator or freezer for a few minutes temporarily resolves the problem, pointing to heating issues as the likely culprit. Users speculate that either a long-running Wi-Fi process ??like that enabled by iOS 7's new background data transfer features ??or a balky firmware update for the phone's WiFi controller are to blame.

The iPhone 4s uses a Broadcom BCM4329 WiFi and Bluetooth controller, according to a teardown by iFixit, the same chip likely used in the iPhone 4. The BCM4329 is a popular choice for mobile applications, where it may be in use in hundreds of millions of popular mobile devices ??processor analysis firm Chipworks estimates that the chip was found in more than 50 million devices in the fourth quarter of 2010 alone.

iPhone 4S / iOS 7 WiFi issues


For Apple's part, there seems to be there seems to be a break in communication between Apple headquarters, its customer support staff in different countries, and its carrier partners around the world. Some users say that upon contacting Apple, they were immediately given a replacement handset regardless of their current warranty status, while other say they were advised that they would need to pay $199 for a refurbished replacement device.

Affected customers who contacted their wireless carriers, rather than Apple directly, say they were met with replies that the problem is "known" and that the Cupertino company is working on a fix, though no timetables were given.

The same issue was reported during last year's rollout of iOS 6, when a 91-page thread ??now repurposed for discussing the issue as it relates to iOS 7 ??appeared in September. Many users at that time found the problem could be resolved by downgrading to the previous iOS release, something that is not possible with iOS 7.
post #2 of 102
Hairdryer-gate. Good thing we can't open our gate at home with the iPhone. We'd have a gate-gate on our hands.
Send from my iPhone. Excuse brevity and auto-corrupt.
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Send from my iPhone. Excuse brevity and auto-corrupt.
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post #3 of 102
Hmmm. I don't have this issue with my 4S. Am I lucky?
post #4 of 102
Get a 5s. Problem solved! ;P
post #5 of 102
Fine for me haven't had any issues on my 4S.
post #6 of 102
Just wipe your iPhone factory- fresh clean and start from scratch.
Works flawlessly every time. 1smoking.gif
 
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Where's the new Apple TV?
 
 
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post #7 of 102
My iPhone 4s ran all the beta iOS7's as well as the Golden Master and Release Version without a hitch. I'd be interested to know if this is related to the method of update, after all mine was backed up then wiped and freshly installed using Xcode not the over the air update regular users use.
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post #8 of 102
Quote:
Originally Posted by PhilBoogie View Post

Hairdryer-gate. Good thing we can't open our gate at home with the iPhone. We'd have a gate-gate on our hands.

Or if Bill had a problem it would be Gates-gate ... 1wink.gif
From Apple ][ - to new Mac Pro I've used them all.
Long on AAPL so biased
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From Apple ][ - to new Mac Pro I've used them all.
Long on AAPL so biased
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post #9 of 102

No issue on the 4S I gave to my daughter. 4 works too.

post #10 of 102
Just reinstall Windows. Fixes it every time.

"Apple should pull the plug on the iPhone."

John C. Dvorak, 2007
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"Apple should pull the plug on the iPhone."

John C. Dvorak, 2007
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post #11 of 102

"You're holding it wrong!"

post #12 of 102
"Just wipe your iPhone factory- fresh clean and start from scratch.
Works flawlessly every time."

I couldn't agree more. It's a pain-in-the-butt but seems to solve all problems.
post #13 of 102
Quote:
Originally Posted by pazuzu View Post

Just wipe your iPhone factory- fresh clean and start from scratch.
Works flawlessly every time. 1smoking.gif

Very often yes, and it seems to be the one thing they haven't tried.

And you don't even always have to start totally over. I don't use iTunes backups but I have reloaded several iCloud after issues and never had the condition return, whatever it was.

My advice to folks if you are in warranty, especially if it is close to ending, is to backup and make that Apple appointment. Why? Because if they wipe it and your wifi doesn't come back then they are more likely to swap it right then. If you wipe it they might require doing it again cause they won't have the fat stack of errors as evidence that something is up. And make sure they note it in their system. Even if you have to raise a little shit to get them to do it right then in front of you. My ass has been saved by notes that I had been in for the issue when my phone was a still under warranty a couple of times.

And if you do wipe it at home, do it via iTunes and do it as the more thorough DFU restore. Might be overkill but it's only perhaps 5 more minutes in the restore process and can't hurt
Edited by charlituna - 10/10/13 at 9:21am

A non tech's thoughts on Apple stuff 

(She's family so I'm a little biased)

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A non tech's thoughts on Apple stuff 

(She's family so I'm a little biased)

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post #14 of 102

FWIW, no problems with my 4S and IOS7. I will admit that when I first installed it I thought my battery life was degraded, but then I found the settings for the background processes, turned a bunch off that I didn't need, and after a couple of days of use everything was back to normal. Nor does IOS7 make me dizzy or sick. I quite enjoy the new look.

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post #15 of 102
Quote:
Originally Posted by pazuzu View Post

Just wipe your iPhone factory- fresh clean and start from scratch.
Works flawlessly every time. 1smoking.gif

Probably the best route, a phone that old has accumulated a bunch of dustbunnies in the code that can use cleaning out. Every update etc. is an opportuninty for just some slight nicks. And the nicks add up: especially if using an anti-virus program such as Symantecs....

post #16 of 102

No issues whatsoever on my 4S

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“What would I do? I’d shut Apple down and give the money back to the shareholders”

Michael Dell - 1997

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post #17 of 102

No issues with my 4s, across the four networks I regularly connect to.

post #18 of 102
My iPhone 4S was affected by last year iOS 6 "greyed out" wifi button.

It was very erratic, during the first week after I updated to iOS 6, it was all fine and well, then the beast came up and I lost my wifi for a week. After that, in about two months, it would go on and off at it own leisure. After that, about december, it died and never returned. Interestingly, my bluetooth, which is controlled by the same chip, never failed.

I contacted Apple Support then (as my warranty was getting to its end, so was my hopes of a bug fix) and they just replaced my iPhone. At the time I was given some explanation that there was some incompatibility between the iOS, the wifi chip firmware, and a specific batch of the chip.

I was wary that iOS 7 update would be a refresh course with "greyed out" wifi, but no. Until now (I updated the launch day) I'm still problem free.

It would be interesting to know the bought period for those affected, to corroborate or bring down the "bad batch" explanation. I bought my faulty iPhone 4S in march 2012. My replacement phone was issued to me in february of this year.
post #19 of 102

Hundreds have complained, millions have installed.  

post #20 of 102
"Just wipe your iPhone factory- fresh clean and start from scratch.
Works flawlessly every time."

Worked perfectly with the IPad 2. Apparent glitches result from upgrading IOS 7 over the top of IOS 6. My problems were mostly with Safari: made it unusable. Wiped Ipad and restored with fresh installation of IOS 7 in ITunes, then restore from Backup..... All was good after that.
post #21 of 102

Since most of you commenting don't have this problem, and have never seen it, you don't understand the issue.  It is not a software problem, it is a hardware-fault.  I have my sister's 4S, which is out of warranty, with the greyed out Wi-Fi.  Apple would not replace the phone since the one year warranty expired.  She bought a new iPhone using her son's upgrade eligibility when Apple said her only option was to pay $199 for another 4S.

 

The problem started after installing iOS 6, so the issue has been around long before iOS 7.  The problem is the Wi-Fi chip overheating and becoming disabled.  Bluetooth continues to work, but you cannot turn on Wi-Fi.  Some have found a temporary fix by freezing the iPhone, but that is only temporary.  The Wi-Fi will fail again.  Freezing did not work with my sister's 4S.  Many have found the solution to be using a heat gun to heat the solder joints around the chip and let them cool again to re-seat the chip on the logic board.  It is a process known as "re-working" the solder.  A small percentage of 4S' have this problem.  So not enough iPhones are affected for Apple to issue an extended warranty, unfortunately.

 

I restored iOS 6 and upgraded and restored using iOS 7, but the Wi-Fi is still greyed out.  An interesting bug is in iOS 7.  Control Center allows you to turn on Wi-Fi even though the chip is disabled.  It doesn't really turn Wi-Fi on.  When you go into settings, the Wi-Fi is still greyed out even though Control Center indicates it is on.  Apple wouldn't think to troubleshoot this bug since they are not testing it on broken iPhone 4S'.

 

If you have a 4S still under warranty with the problem, then Apple will replace it, obviously.  Many have 4Ss that are out of warranty, but still under contract, so they are stuck in a bind.  I need to buy an iPhone screwdriver kit so I could try to re-work the solder to restore the Wi-Fi. So far, my 4S is over a year old and the Wi-Fi still works.  I bought it July 2012, so hopefully first run 4S' had the problem, and not the later manufactured models.

post #22 of 102
Steve Ballmer, stop writing negatives stories about Apple on Appleinsider.
Stop-it-now!
post #23 of 102
Unfortunately reinstalling your iPhone 4S does NOT work, the chip has been damaged. And with a damaged wifi chip a downgrade (which Apple does not allow) would not be of any use either.
With as result that you're screwed, you are now the owner of a now worthless iOS7 iPhone 4S

There is a clear pattern and these are obviously not individual cases. It appears the wifi chip of the iPhone 4s is being of a substandard quality and not being not fully compatible with the new iOS firmware which causes this problem. Also most of the beta testing over the past months was done using the iPhone 5 and not the iPhone 4/4S. Most likely because the 4 series were not part of the large scale testing Apple was not fully aware of this accelerated issue with the Wifi chip (when you do a Google search on "iPhone greyed out wifi" you see that this issue is not new, and you see the issue involves mostly the 4s ) But it seems iOS 7 pushed these weak and thus unreliable wifi chips just over the edge, causing them to overheat and thus to stop functioning altogether.

You can read more information on http://iphone4s-wifi-victims.blogspot.com
or just do a Google search on "iphone 4s wifi greyed out"
post #24 of 102

Well, my spouse and I both have iPhone 4S models, and we haven't seen the problem.  For what it's worth.

post #25 of 102

How come there's an article on this but not on the gyroscope issues people are experiencing with the 5S?

post #26 of 102
It is not just 4s! I have an iPhone 5 and it was FINE before the update. Now it only has wifi intermittently and has a weak signal altoghther. I am so disappointed that I want to get rid of my phone and get a Samsung instead.

I wanted to include a link to this discussion I have loyally followed because it details so many of our grievances.

https://discussions.apple.com/thread/5330877?tstart=0
post #27 of 102

No it doesn't.  iPhone 5.   I have done two factory resets.

post #28 of 102
Quote:
Originally Posted by hillstones View Post

Since most of you commenting don't have this problem, and have never seen it, you don't understand the issue.  It is not a software problem, it is a hardware-fault.  I have my sister's 4S, which is out of warranty, with the greyed out Wi-Fi.  Apple would not replace the phone since the one year warranty expired.  She bought a new iPhone using her son's upgrade eligibility when Apple said her only option was to pay $199 for another 4S.

The problem started after installing iOS 6, so the issue has been around long before iOS 7.  The problem is the Wi-Fi chip overheating and becoming disabled.  Bluetooth continues to work, but you cannot turn on Wi-Fi.  Some have found a temporary fix by freezing the iPhone, but that is only temporary.  The Wi-Fi will fail again.  Freezing did not work with my sister's 4S.  Many have found the solution to be using a heat gun to heat the solder joints around the chip and let them cool again to re-seat the chip on the logic board.  It is a process known as "re-working" the solder.  A small percentage of 4S' have this problem.  So not enough iPhones are affected for Apple to issue an extended warranty, unfortunately.

I restored iOS 6 and upgraded and restored using iOS 7, but the Wi-Fi is still greyed out.  An interesting bug is in iOS 7.  Control Center allows you to turn on Wi-Fi even though the chip is disabled.  It doesn't really turn Wi-Fi on.  When you go into settings, the Wi-Fi is still greyed out even though Control Center indicates it is on.  Apple wouldn't think to troubleshoot this bug since they are not testing it on broken iPhone 4S'.

If you have a 4S still under warranty with the problem, then Apple will replace it, obviously.  Many have 4Ss that are out of warranty, but still under contract, so they are stuck in a bind.  I need to buy an iPhone screwdriver kit so I could try to re-work the solder to restore the Wi-Fi. So far, my 4S is over a year old and the Wi-Fi still works.  I bought it July 2012, so hopefully first run 4S' had the problem, and not the later manufactured models.

Those issues can occur for several reasons there isn't just one problem and one solution. A bad battery can cause the wifi to gray out as well as a bad card, bad firmware or bad software installs. Just. Because it didn't fix your specific issue doesn't mean the above comments don't work or aren't helpful
post #29 of 102
Quote:
Originally Posted by DarkLite View Post

How come there's an article on this but not on the gyroscope issues people are experiencing with the 5S?
Here you go:
Tests suggest some iPhone 5s motion sensors may be miscalibrated... http://goo.gl/e4fj1f
post #30 of 102
Quote:
Originally Posted by osmartormenajr View Post

My iPhone 4S was affected by last year iOS 6 "greyed out" wifi button.

It was very erratic, during the first week after I updated to iOS 6, it was all fine and well, then the beast came up and I lost my wifi for a week. After that, in about two months, it would go on and off at it own leisure. After that, about december, it died and never returned. Interestingly, my bluetooth, which is controlled by the same chip, never failed.

I contacted Apple Support then (as my warranty was getting to its end, so was my hopes of a bug fix) and they just replaced my iPhone. At the time I was given some explanation that there was some incompatibility between the iOS, the wifi chip firmware, and a specific batch of the chip.

I was wary that iOS 7 update would be a refresh course with "greyed out" wifi, but no. Until now (I updated the launch day) I'm still problem free.

It would be interesting to know the bought period for those affected, to corroborate or bring down the "bad batch" explanation. I bought my faulty iPhone 4S in march 2012. My replacement phone was issued to me in february of this year.

Bad batch is tech speak for " I have no idea how to fix this but you want to know a why so it this sounds good. Now go away you've exceeded your ten minutes." There is no bad batch that issue has happened since iPhone launched. It's just more and more obvious with OTA updates and more complex coding
post #31 of 102
"Just wipe your iPhone factory- fresh clean and start from scratch.
Works flawlessly every time."

Actually, no it doesn't. My neighbor has this issue with his phone and we methodically went through the process of resetting the network settings, then wiping and restoring from backup, then wiping again and setting up as a new phone. The problem remained. There are various issues that can be fixed with resets and restores, but there is most certainly a non-negligible percentage of the 4s' out there that have some other issue causing this problem.
post #32 of 102
Quote:
Originally Posted by djd214 View Post


Bad batch is tech speak for " I have no idea how to fix this but you want to know a why so it this sounds good. Now go away you've exceeded your ten minutes." There is no bad batch that issue has happened since iPhone launched. It's just more and more obvious with OTA updates and more complex coding

 

There have been bad batches.  My iPhone 4 purchased near launch had to be replaced twice due to a malfunctioning proximity sensor (many people had this issue).  The third one worked perfectly, and continues to.  There are many individual components in a phone, any of them could have "bad batches" and having so many parts that have to work perfectly in-concert vastly increases the chance of things going wrong.  iPhones are quality devices, but failures can happen.

post #33 of 102
Ever since upgrading to iOS 7 on my 4S, my WiFi has actually improved (On iOS 6 I would sometimes have to manually turn WiFi off and on to get a solid connection), and I've been running 7.0.2 since the day it was released without a single issue.

I'm inclined to believe that some people just need to do a backup and restore.
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post #34 of 102
Quote:
Originally Posted by Brandon Abell View Post

There have been bad batches.  My iPhone 4 purchased near launch had to be replaced twice due to a malfunctioning proximity sensor (many people had this issue).  The third one worked perfectly, and continues to.  There are many individual components in a phone, any of them could have "bad batches" and having so many parts that have to work perfectly in-concert vastly increases the chance of things going wrong.  iPhones are quality devices, but failures can happen.
Failures can happen. A bad batch implies a bad chip so everyone would experience the same issue. This is clearly not the case and as I explained before, this issue has been around for a while and the cause varies as I stated in my previous post.
post #35 of 102

Sure did not work for me.  Tried it with no improvement.  Maybe just hardware?

 

I have this issue and a lot of issues where Spotlight (the greatest feature since sliced bread) simply refuses to find certain things sometimes...and finds the same thing other times.  Apple geniuses can't seem to figure out why.

 

Sure need to have a reliable phone.  For me it is a business tool.

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post #36 of 102
No issues with my iPhone 4s when using an Apple Airport Extreme - 3rd Generation router, or with Airplay, Netflix, or streaming to Apple TV. Using all Apple gear makes for a happy home.
post #37 of 102
Quote:
Originally Posted by djd214 View Post


Those issues can occur for several reasons there isn't just one problem and one solution. A bad battery can cause the wifi to gray out as well as a bad card, bad firmware or bad software installs. Just. Because it didn't fix your specific issue doesn't mean the above comments don't work or aren't helpful

I see that you have no proof or explanation to your alleged reasons for the Wi-Fi greying out, but if you research other sites, they have confirmed it is a hardware failure with the Wi-Fi chip, not batteries, SIM cards, firmware or software causing the Wi-Fi chip to become disabled.

 

Many have fixed the problem by re-working the solder on the Wi-Fi chip, or heating up the iPhone with a hair dryer.

http://www.ifixit.com/Answers/View/135053/WiFi+Greyed+out+iOS+6.1.3

 

Apple's advice is to reset the network settings.  When that doesn't work, restore the iPhone.  When that doesn't work, contact Apple so they can tell you it is a hardware failure.  The majority that have the problem also confirm software reset and restore does not work.

http://support.apple.com/kb/ts1559

post #38 of 102
Quote:
Originally Posted by djd214 View Post


Bad batch is tech speak for " I have no idea how to fix this but you want to know a why so it this sounds good. Now go away you've exceeded your ten minutes." There is no bad batch that issue has happened since iPhone launched. It's just more and more obvious with OTA updates and more complex coding

You really have no idea what you are talking about.  Did you know there was a small amount of iPhone 4s that had bad proximity sensors?  Did you know there was a small amount of iPhone 5s that had cameras that could not focus correctly?  Now there are iPhone 5Ss that have bad gyroscopes.  AppleInsider did not bother to report on the bad gyroscopes, but many others did, with proof.

 

http://gizmodo.com/the-iphone-5s-motion-sensors-are-totally-screwed-up-1440286727

post #39 of 102
Quote:
Originally Posted by Brandon Abell View Post

There have been bad batches.  My iPhone 4 purchased near launch had to be replaced twice due to a malfunctioning proximity sensor (many people had this issue).  The third one worked perfectly, and continues to.  There are many individual components in a phone, any of them could have "bad batches" and having so many parts that have to work perfectly in-concert vastly increases the chance of things going wrong.  iPhones are quality devices, but failures can happen.
[/quote

Actually I worked for Apple Inc. repairing iPhones. I speak from experience within the company. Problems arise in electronics. It is the nature of the business to have equipment that fails at shipping. Technicians don't care to give you a reason why your specific device failed. They do not care. They only want to resolve the issue. If you press them with why did it fail your going to get some bs like bad batch chip doesn't work with firmware. Etc. Get over yourself.
post #40 of 102
Quote:
Originally Posted by hillstones View Post

You really have no idea what you are talking about.  Did you know there was a small amount of iPhone 4s that had bad proximity sensors?  Did you know there was a small amount of iPhone 5s that had cameras that could not focus correctly?  Now there are iPhone 5Ss that have bad gyroscopes.  AppleInsider did not bother to report on the bad gyroscopes, but many others did, with proof.

http://gizmodo.com/the-iphone-5s-motion-sensors-are-totally-screwed-up-1440286727
I

My previous post was meant for you
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