No Wifi Network Detection After 4.0.1 update-Loader Keeps Spinning on & off

All Mac addresses are there Bluetooth Wifi IESN etc, it shows WIFI is on but the circle loader keeps spinning trying to search for networks. No luck.
Ive tryed everything mentioned here, Restore, rollback to 3.1.3 OS reset etc.
The funny this is, the circle loader thing next to WIFI keeping spinning then disappearing. No networks are being detected.
Any advice would be greatly appriciated. Im leaning towards a hardware issue here,isO4 fried my wifi chip?
Thanks,
Joe-

Joe,
I have a 3G, 4.0.1.
I'm having the same problem with my wife's phone. It does not even detect the networks, just spins and spins and spins. I can set my phone (exactly the same set up as hers) right next to it and it sees all the networks with no problem. I have even restored hers with my settings, with no luck. I have searched everywhere and tried everything. I usually get stupid answers like reset your wifi, really, when it works on my two computers and my iphone? I've also seen the put it in you fridge for 10 minutes. I'm about to give up.
About the only real answer I found is that its a hardware problem. Unfortunately I don't live anywhere near an Apple store.

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