My Iphone 4 (ios 7) does not register any wifi network

ive tried everything all my other devices connect to the home wifi fine so why wont it???

The freezer really works people!!
My 4S couldnt detect any networks today.
With little time i found the freezer idea on the forums, i thought it was BS to be honest.
But i tried the whole airplane mode and network reset and nothing worked so i tried the freezer.
Ziploc bag and left it in the freezer for 30 mins with 20% battery life. When I pulled it out it was dead so hooked it up to the charger, waited for the chagre and no success on the wifi. So yah i thought BS.
So then I followed all the other apple care steps such as backing up the phone, erasing the phone. But even when the phone was erased it couldnt detect any networks. So i restored the phone from itunes and still no wifi.
Then I read a key note on the forums about the freezing.
They said turn the wifi off and cool for 10-15 mins
So iphone being charged now after the back up and restore i tried the freezer again.
15 mins in ziploc bag with wifi off and full battery and behold!
I finally detected networks again!!
Good Luck!

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My Iphone 4 (ios 7) does not register any wifi network

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