Greyed out WiFi on iPhone 4s?
Added (1). I recently updated my iPhone 4G (white) to ios8 thinking it would fix the problem I have with the WiFi. Around 1 or 2 days ago the WiFi icon greyed out and I couldn't turn it on, remember that this was on ios7, I've tried lots of things like putting it in the fridge for a while which did work but it was only temporary. Please help, thanks.
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