iPhone 4s wifi grayed out temporary fix

I am facing issues of WiFi button grayed out and battery draining very fast after upgrading from iOS 7.0 to iOS 7.0.3. I have been searching through internet right after this issue happened with my iDevice. My three colleagues don't have problems after upgrading to iOS 7.0.3 except for one saying battery draining is fast.

Many people tried putting their iPhone's into freezer and I am one of them and it got fixed temporarily for at least 5 minutes. I kept it in freezer for 20 minutes and WiFi button reappeared. Interesting information, when in freezer it contracts hardware parts and WiFi reappears and again after sometime due to heat WiFi button gets grayed out again.

You can see device logs by downloading iPhone configuration utility. Also I can see kernel panic logs related to WiFi inside iPhone diagnostic which you can see (if you have any) by going in Settings -> General -> About -> Diagnostic & Usage -> Diagnostic & Usage Data.

Now question is, whether is it a hardware issue or software issue? People have different opinions as follows:
1. If you can't see WiFi mac address then it's a hardware problem.
2. If you can see WiFi mac address then it's a software problem.
3. If device log contains something like "ERROR: WiFi device not found" most probably it's a hardware problem.
4. If device log doesn't contain above error then again it's most probably software problem.

I can see following line in log but don't know really what it means:
kernel[0] : 000046.597746 wlan.E[94] AppleBCMWLANCore::saveDebugInfo(): Please file a radar in "Purple WiFi Drivers" using the instructions at <http://eightball.apple.com/luna/index.php/Debugging_Wifi_Problems#Capturing_Debug_Info>

So to summarize, what things I tried until now to fix the problem
1. Restoring when in DFU mode as iCloud Find My iPhone was enabled and as there is no WiFi, No Data, I was unable to not able to restore.
2. Restarting iPhone 20 times.
3. Resetting Network settings 100 times.
5. Tried to downgrade desperately but wasn't possible.
4. Putting iPhone in freezer for 20 minutes.

At last I have decided to wait until Apple's next update.


raden said…
You have given great content here.Thin iPhone 12 Pro Max Case I am glad to discover this post as I found lots of valuable data in your article. Thanks for sharing an article like this.
The information you've provided is quite useful about iphone 11 screen fix cost. It's incredibly instructional because it provides some of the most useful information. Thank you for sharing that.
I want to thank you. Good job! You guys do a great blog, and have some great contents. Keep up the good work Phone Repairing
StarKingdom said…
I am impressed with how nicely you described this subject, It is a gainful article for us. I found decent information in your article about gift ideas for women. Thanks for sharing it.

Popular posts from this blog

How to get local time from UTC using Moment.JS

Measure the height of keyboard on PhoneGap app using jQuery

6 steps to create local copy of your live WordPress site