HT201394: Loss of cellular service or ability to use Touch ID after updating to iOS 8.0.1 on iPhone 6 or iPhone 6 Plus

Learn about Loss of cellular service or ability to use Touch ID after updating to iOS 8.0.1 on iPhone 6 or iPhone 6 Plus
meggerber
Level 1 (0 points)

Q: Apple -- IOS 8.2 resulted in greyed out WIFI button on a new Iphone 4S. This is a common problem please advise.

I am not due for an upgrade and don't have bucks to buy new phone.  After upgrading to IOS 8, wifi button greyed out.  Wifi is working just fine -- other devices having no problem including another iPhone (not upgraded) and two iPads (neither upgraded).

 

Apple store ran a test and told me antenna wasn't working and gave me a new 4S (under protection plan).  Wifi was fine and now greyed out. I tried restart and reset. 

 

Not everyone can afford an iPhone 6 please support older hardware as well.

Posted on Oct 12, 2014 4:21 AM

by TJBUSMC1973,Solvedanswer
TJBUSMC1973 TJBUSMC1973
Level 5 (7,636 points)
A:

meggerber wrote:

 

Something about iPhone 4s and IOS 8 is causing the wifi to grey out.

 

No.  Nothing about iOS 8 (or any other iOS) directly causes an iPhone's wi-fi to grey out.

This is a known issue affecting a very, very small percentage of iPhone 4S units that get a greyed out wi-fi at some point, usually after any iOS update done over wi-fi.  The most common cause is that the wi-fi chip gets too hot during the update process, and either temporarily disables or burns out permanently.  This also has happened when someone updates/downloads a lot of apps at one time over wi-fi.  Basically, the wi-fi chip runs too hard and too fast for too long, and fails.

 

It is a hardware issue, not an iOS issue.

Posted on Oct 12, 2014 7:20 AM

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meggerber

Q: Apple -- IOS 8.2 resulted in greyed out WIFI button on a new Iphone 4S. This is a common problem please advise.

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  • by yqkent,

    yqkent yqkent Dec 8, 2014 4:26 AM in response to TJBUSMC1973
    Level 1 (4 points)
    Dec 8, 2014 4:26 AM in response to TJBUSMC1973

    So far, after fixing with that method, my wifi works perfectly

  • by TJBUSMC1973,

    TJBUSMC1973 TJBUSMC1973 Dec 8, 2014 5:43 AM in response to yqkent
    Level 5 (7,636 points)
    Dec 8, 2014 5:43 AM in response to yqkent

    yqkent wrote:

     

    So far, after fixing with that method, my wifi works perfectly

     

    And I hope it continues to work for a long time.  But it's not a permanent fix.  It's a bandage.  The hardware defect that caused the problem originally is still present, and may manifest again.  And if it does, and your hairdryer/freezer trick doesn't work a second time, then you may not get support from Apple because of unauthorized procedures.

     

    Just FYI.

  • by yqkent,

    yqkent yqkent Dec 10, 2014 10:22 AM in response to TJBUSMC1973
    Level 1 (4 points)
    Dec 10, 2014 10:22 AM in response to TJBUSMC1973

    I will update you  if my wifi goes down... So far, so good.  Thanks for your information

  • by mrnigey,

    mrnigey mrnigey Jul 13, 2015 5:59 AM in response to TJBUSMC1973
    Level 1 (4 points)
    Jul 13, 2015 5:59 AM in response to TJBUSMC1973

    I've just noticed your post...

    "This is a known issue affecting a very, very small percentage of iPhone 4S units that get a greyed out wi-fi at some point, usually afterany iOS update done over wi-fi.  The most common cause is that the wi-fi chip gets too hot during the update process, and either temporarily disables or burns out permanently.  This also has happened when someone updates/downloads a lot of apps at one time over wi-fi.  Basically, the wi-fi chip runs too hard and too fast for too long, and fails.

     

    It is a hardware issue, not an iOS issue."

     

    Is this still your understanding?

     

    I have an iPhone 4S bought in November 2015.  I recently upgraded to IOS 8.4 and it seemed to be working fine.

     

    When I woke up on Sunday 12 July 2015, I discovered that the wifi button, in settings, was greyed out and so I cannot connect to any wifi networks.

     

    I have tried resetting the phone and restoring the phone to factory settings - neither of which worked

     

    I plan to visit my local Apple Store in the next couple of days to seek advice.

     

    All I can find online are suggestions to heat up the device and/or put it in the freezer - neither of which sound very sensible to me.

  • by bono.is.god,

    bono.is.god bono.is.god Sep 14, 2015 9:45 PM in response to TJBUSMC1973
    Level 1 (0 points)
    Sep 14, 2015 9:45 PM in response to TJBUSMC1973

    I have the same issue.  My 4S wifi died as soon as I upgraded to OS 8.  So I bought a new 4S from apple - Same thing happened.  Went back to apple got ANOTHER 4S and I'm experiencing the SAME issue again.  IT HAS TO BE SOFTWARE.  I didn't drop it or do anything to it. I had it for A DAY!

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