ios 6.1.3 WIFI problem

So if chip x is rated to operate at between 2.7 and 3.3v but if you pump 3.3 into it it generates more heat, that could cause a failure of solder joints due to the dissipation of the heat where it is fitted. That's one example. If the software is making a component generate more heat... Not all units will be affected.

Apple refuse to do board level repairs and I don't know if someone has done a dissection to have a look - it may not be possible to tell visually.

I'm tired of being taken advantage of...The people at apple rried to convince me that my wifi antenna was broken and that the phone was so smart (smart phone) that it greyed out the wifi switch because it new the antena was broken.

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My wi/fi isn't greyed out it just keeps searching and never connects my iPad no problem connects I've tried switching wifi off but then it greyed and didn't come back for a couple of days so now it's just searching all the time fed up apple .

I had this problem a few months back when I first upgraded to IOS 6.1.3 but given there was such a strong reaction to the upgrade affecting Wi-Fi I (perhaps naively) assumed that another upgrade would be on the way soon to fix this. As apple appear to be in denial and doing nothing to fix this I give up and move on to windows.....

For reference I love my iPad but the WiFi will play up almost on a daily basis, I have to restrict the connection to 3G in order to connect to the Internet, or try a hard power off, which usually works, but not always, and often it only lasts for an hour or so before going again. This makes streaming very inconvenient over WiFi, and very expensive otherwise!! Too much hassle sorry Apple.

wifi does not work...... the same problem and i dont know what to do

MrDude10 and others, there really isnt much you can do apart from cause a stick at the Apple Store Genius Bar or your local Cell phone provider. Some have got replacement phones without cost this way.

The Freezer bag trick has fixed some Iphones, but not all. Mine was fixed for about 5 minutes. The heart of the problem seems to be that software is tripping a heat alert on the chip. This started happening more with IOS 6.1.3 but has occurred in previous versions of IOS 6. Maybe IOS 7 will fix it. Maybe not if if the heat sensitivity was caused by software and some bad wifi chips. Is this apples fault yes, is the solution they offer equitable.... Probably not if it costs $200.

Other than that well make sure everyone you know online and in real life knows about this. That wont fix it, but it might make you feel a little better.

Your problem is totally unrelated the the problems described in this thread. If the problem only occurs on your home network, and not with other WiFi hotspots, start by rebooting your router. Remove all power by unplugging it for 15 seconds or so to reset the DHCP server that assigns IP addresses to devices.

Disagree. I think it's the same problem as in 6.1.3 caused but in some cases results in the phone deciding to grey it out due to non functioning hardware being detected, and in others just inducing unreliability or a total inability to connect or being more fussy about what it connects to. In those cases it is not bring detected as failed hardware by the software so it isn't greyed.

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I heated up my phone (as recommended by EmBee82 and rhh1) on July 30th and it is still working fine.

My wifi &amp; BT is still working. I heated iphone on July 1st. I am not close enough to the design, nor, software, but it certainly appears to be a marginal manufacturing issue that is triggered by the firmware upgrade. It could be the PC mount, but, also could be the IC. During semiconductor manufacturing sometimes 'lots' ( manufacturing term for wafer batch) of the silicon can be processed close to the tolerances of the process. If there is a marginal silicon circuit the combination of issues would affect a % of the parts made. The firmware upgrade could have pushed this limit. It could also be a packaging issue related to what I stated above from which the heating could have corrected. If it is this kind of problem then finding root cause is not a trivial issue possibly involving the system designers, the software developers, the board assemblers, the IC designers &amp; the packaging house the IC is in. This appears to be more complicated in that not all iPhone 4 or 4S's are affected.

This still doesn't fix the consumers dilemma as our phones seem to have been definitely affected by the upgrade.

I could be totally wrong, heating the phone has risks of damaging the display &amp; anyone trying this should be prepared to accept a result where the phone could be worse off. In my case I had decided that I was going to have to get another phone &amp; had nothing to lose. So far so good.

This just happened to me today, WiFi was having issues connecting yesterday and today the WiFi option is greyed out on my 4S.

Seems alot of people started seeing this a few months ago. I got the phone a little over a year ago now im worried that I will have to shell out more money to get it fixed. But its just a year old and in mint condition!

Did you just upgrade to 6.1.3, or have you been on it for a while? A lot of people think this problem is caused by the act of upgrading. If you haven't upgraded recently that at least disproves this hypothesis.

Hi Lawrence I up graded as soon as I saw it was available so some time now so I don't think it's the upgrade either was working perfect then stopped

If the steps in http://support.apple.com/kb/TS1559 don't resolve it your radio chip that provides WiFi and BlueTooth has probably failed. It's a weak point in the iPhone. The same chip is used in most other smartphones, and it has the same problem with all of them. But try that tip first, the try turning off Cellular Data and waiting 15 minutes, then try WiFi again. And if that doesn't resolve it sometimes the "hairdryer" trick will. Heat the phone from the back for a couple of minutes with a hair dryer.

Finally, you can take it to an Apple store and see if they have a solution. Sometimes, if you are only recently out of warranty, they will replace it anyway.