Apple iphone 4s wi-fi was disabled & grayed

Discussion in 'iPhone' started by SilverLight300, Jun 1, 2016.

  1. SilverLight300 macrumors member

    SilverLight300

    Joined:
    May 31, 2016
    #1
    Hi dear members,
    Some days ago i lost my wi-fi -> It was disabled & grayed.
    My phone is iphone 4s with ios 7.
    I restored my phone to ios 9.3.2 = Latest version.
    And reset every thing in the phone after upgrade.
    But grayed wi-fi is still there.
    So i followed Troubleshooting 4 in the link below :
    http://www.etradesupply.com/blog/how-to-solve-iphone-4s-wifi-issues-on-ios7/
    That link tell us about temperature of wi-fi radio.
    So i turned my iphone off & put it in refrigerator for ten minutes and after that i turned it on again.
    Now it seems wi-fi is enable and works.
    After some minutes i lost it again and it went to disable mode again.
    How can i fix this issue by myself?
    I act like this link :

    --- Post Merged, Jun 1, 2016 ---
    How can i figure out this issue is a software problem or hardware problem?
    Is there any tools to check & test wi-fi radio cheap(check temperature and etc)
     
  2. SilverLight300 thread starter macrumors member

    SilverLight300

    Joined:
    May 31, 2016
    #2
    At last i am certainly sure this issue is about temperature of w-fi radio. How can i fix it?
     
  3. C DM macrumors Westmere

    Joined:
    Oct 17, 2011
    #3
    Well, it seems firstly clear that it's hardware related. Seems like fixing would be replacing the WiFi module (and perhaps anything else that might be related to that)--not sure that's something that is self-repairable or really even if Apple goes for repairs like that (vs. essentially just offering a replacement for a fee or under AppleCare if it still applies).
     
  4. willmtaylor macrumors G3

    willmtaylor

    Joined:
    Oct 31, 2009
    Location:
    A Natural State
    #4
    While AC+ still technically possible (4S stopped being sold in September 2014), can you imagine being an Apple "Genius" and a guy walks in with a 4S that's covered? I'd crack up.
     
  5. Mr_Brightside_@ macrumors 68030

    Mr_Brightside_@

    Joined:
    Sep 23, 2005
    Location:
    Toronto
    #5
    Refrigerator? You need to heat the back, preferably with the back cover off.
     
  6. SilverLight300 thread starter macrumors member

    SilverLight300

    Joined:
    May 31, 2016
    #6
    If i open the back cover can i do anything?
    Is there any windows or ios application to check and find the real problem?
     
  7. Mr_Brightside_@ macrumors 68030

    Mr_Brightside_@

    Joined:
    Sep 23, 2005
    Location:
    Toronto
    #7
    You don't need to "find the real problem", it's a hardware issue.
     
  8. SilverLight300 thread starter macrumors member

    SilverLight300

    Joined:
    May 31, 2016
  9. Mr_Brightside_@ macrumors 68030

    Mr_Brightside_@

    Joined:
    Sep 23, 2005
    Location:
    Toronto
    #9
    How are you at soldering
     
  10. lordofthereef macrumors G5

    lordofthereef

    Joined:
    Nov 29, 2011
    Location:
    Boston, MA
    #11
    Having looked at the above videos it sounds like all you need is the loudspeaker and wifi antenna module to replace it with. That should be a relatively straight forward fix. The 4 and 4s were some of the most easily seri cable iPhones to date IMO.
     
  11. anubis1980 macrumors 6502

    Joined:
    Oct 22, 2012
    #12
    i work in IT in a place that had hundreds of 4S out in the business. we had this at least 40 times.We tried everything, heating, freezing etc. all worked for a short time, but eventually would break again. We even paid a local company to "fix" them and most of the issues returned within 3 months... basically we replaced them all as it seems to be an issue, all fixes i found were temporary.
     
  12. SilverLight300 thread starter macrumors member

    SilverLight300

    Joined:
    May 31, 2016
    #13
    Take a look at this link :
    https://www.ifixit.com/Guide/How+to+Fix+iPhone+4S+Wi-Fi+Grayed+Out/22167
    As "anubis1980" said heating & freezing jobs are useful for a short time & temporary & this is right.
    Because i did that 3 times and finally could ungrayed wi-fi icon, but after connect to my wireless router and trying to open a web page iphone was freezed and i lost wi-fi again.

    I need to ask a question!
    Is it possible this issue be in relation with Apple-ID and somehow they disabled wi-fi icon?

    At last what should i do?
    Should i find a place and buy that board and replace it by myself?
    Should i try heat - freeze again by refering to a local company?
    Should i tell that local company to prevent heat - freeze?

    I think in my area there are no iphone 4s stuffs.
    So is it possible to use a wi-fi chip from newer phones or use a board from newer ones?

    Thanks in advance
     
  13. anubis1980 macrumors 6502

    Joined:
    Oct 22, 2012
    #14
    I know with the company we used who replaced the boards (or so they told us) some worked, some didn't, most failed again so not sure if they were using inferior parts or just heating them and telling us they had replaced the parts. We did find it tended to happen a lot when people upgraded to the latest OS, not sure if the part failed an IOS check so shut down/disabled or if this is just a coincidence.

    to be honest, if you can do it yourself, it would be cheaper and at least you know you have done it rather than relying on an external company who may just heat it.
     
  14. SilverLight300, Jun 2, 2016
    Last edited: Jun 2, 2016

    SilverLight300 thread starter macrumors member

    SilverLight300

    Joined:
    May 31, 2016
  15. anubis1980 macrumors 6502

    Joined:
    Oct 22, 2012
    #16

    No afaik this is a hardware issue, can be caused (on ours anyway) by updating/downgrading, not sure if IOS tests hardware whilst doing this and fails, or if it stresses components, but i doubt doing that will work. You will only be able to downgrade to 9.3.1 anyway i believe , if apple are still signing it.
     
  16. Applejuiced macrumors Westmere

    Applejuiced

    Joined:
    Apr 16, 2008
    Location:
    At the iPhone hacks section.
    #17
    Bring it to Apple or maybe it's time to update to something newer...
     
  17. geoff5093 macrumors 68020

    geoff5093

    Joined:
    Sep 16, 2014
    Location:
    Dover, NH
    #18
    It's been made pretty clear that this is a hardware issue. Why would your Apple ID allow the WiFi to work for X number of minutes after being heated up by a hair dryer?
     
  18. SilverLight300 thread starter macrumors member

    SilverLight300

    Joined:
    May 31, 2016
    #19
    You are right...
    This forum is awesome and i should say appreciate to it's moderator(s).
     

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