IPad wifi and Bluetooth greyed out after iOS5 update

After updating to iOS5 on my iPad my WiFi and Bluetooth were greyed out like the update has caused a hardware failure on the radio side. My SIM and 3G still work (not that I use it) but I can not even choose wifi or bluetooth in settings app as they are greyed out.
In Wifi it says "No Wi-Fi" and Bluetooth it says "Unavailable"
I wasn't using it a lot so just forgot about it for a while as it sat gathering dust being an expensive paperweight thinking that the next software (5.0.1) update would sort it all out. It doesn't. I have a 64GB iPad 3G with no wifi and as I am living abroad the 3G is useless to me (though only use the ipad at home on my wirless network anyway, or not as the case is now!!)
I have restored, factory restored, cleaned installed new software, everything I can think of but still there is no wifi and no bluetooth.
Has anyone else had this issue? My (very expensive) iPad is now next to useless!!
ANY help is VERY much appreciated.

thank you for fast response and sharing the link but i've tried everything including downgrade but it seems that theres a serious problem with MC497LL model and trying to reach to the support for any updates about it at least trying to inform them

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2. Try and downgrade to 3.1.3 from here:
http://www.felixbruns.de/iPod/firmware/
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HI,
This can depend on the the Apple ID that is used.
I was under the impression that the invididual parts of an iCloud ID could be "registered" separately for iMessages but this may not be correct.
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AT this points I did the OS X one first then the iPhones
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(I Can log in to the same iTunes account with either name, and post here, and access iCloud in a web browser - the password is the same).
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I am a little confused by this bit:-
...ONE computer has my wife's phone number in under iMessage and its greyed out ...
I can see the iPhone Numbers in Messages Menu > Preferences > Accounts >iMessages Account pane but they are not greyed out even when not active
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9:52 PM Tuesday; November 27, 2012
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
 iMac 2.5Ghz 5i 2011 (Mountain Lion 10.8.2)
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 Mac OS X (10.6.8),
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Hi,
Looking for any solutions to this:
I upgraded to iOS 7 with no problems initially
After about 24-36 hrs I noticed I could no longer access websites via the WiFi connection, so I restarted the phone (a 4S on the Bell Canada network).
Since then, the WiFi slider has been greyed out and I can't access WiFi networks - with the exception of about an hour or two coincidentally around the time of the 7.0.2 release.
The WiFi button on the control centre appears to work, but of course doesn't actually function as designed.
So far I've tried the following:
Power on & off
Reset the phone (home & power buttons until Apple logo shows)
Reset network settings
Various versions of having the phone in or not-in airplane mode while doing the above
Renaming the phone without appostrophies.
Reinstalling iTunes & re sync
Upgrading to 7.0.2
Completely wiping the phone and reinstalling everything from iTunes (painful, I know)
Going into the store that sold me the phone (I won't say here, but they weren't very nice about Apple)
None of the above have worked.
Some reading suggests it could be the phone's chipset, but I'd argue that as it's connected to WiFi just fine a couple if times.
The only idea I've read and not yet got round to trying involves freezing the handset.
Anyone else with any other ideas?
Thanks!

Tony,
I've been reading up on this 4S wifi greyed out topic for the past several days too. I have a 5 and I don't have the wifi greyed out problem (knock on wood).
There's been quite a huge volume of discussion on this issue, with some people suggesting that there is a hardware defect, while others finding it just too coincidental that so many people would have this same problem on the same occassion, ie upgrade to iOS7 or 7.0.1 or 7.0.2.
The strangest thing about this: there's a user, carolinelewis, who is on her second new replacement 4S from Apple but they still show wifi greyed out after a while!
https://discussions.apple.com/thread/4638071?start=300&tstart=0
(page 21 of the thread).
Some people swear by the freezer method, some say the hot dryer method worked for them. Some say using either methods would get it fixed, some say the problem returns after some days.
My thoughts is that both freezer and hot dryer methods are actually taking the phone out of its operational temperature range.
Environmental requirements of 4S:
Operating temperature: 32° to 95° F (0° to 35° C)
Nonoperating temperature: -4° to 113° F (-20° to 45° C)
Relative humidity: 5% to 95% noncondensing
This action may have cause the 4S to do a complete initialization when returned to normal temperature, but these 2 methods appear to be last ditch efforts.
What I'd favor is power cycling the 4S, which can be achieved by running it completely out of battery, as shown in this Youtube video: http://youtu.be/o_ws5srnVVM
then plug in power and just may work for you.
I've also come across this person's workaround: http://www.youtube.com/watch?v=vzb5LNB9nIA
which may work for the 4S on iOS7 (it was posted for iOS6).
The steps this gentleman proposed appears to be worth a try. His strategy is to put the iphone into airplane mode, then do a hard reset.
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So my thoughts on this 4S wifi button grey out is that there is something in the iOS7 upgrade process that caused the wifi circuitry to freeze up and need a complete restart from powered down state.
The fact that the iphone doesn't have an easily removed battery makes it harder, and I suspect the freezer and dryer technics are an indirect way of acheiving total power off (battery not supplying power due to extreme high or low temperatures).
Furthermore, I've read that some people fixed their wifi greyed out problem by deleting older apps that may not be fully compatible with iOS7 and thus locking it up. Well, if that were true, then it may explain why the problem returns for some people. We won't know who upgraded which app.
And of course, there are instances where the wifi hardware that happen to be in a marginal state. Kind of like a PC working fine, installing updates, then stalling on reboot because the boot sector failed or some driver got stuck during initialization stage. This may explain why for some people the 4S had been working just fine but got broken wifi after the upgrade.
Best of luck to you in your efforts to get this problem fixed.

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