TS1398 My iPhone 4S won't let me turn the wifi on!

Hi! My iPhone won't let me turn the wifi on, the option is greyed out in settings and the control centre doesn't work-it doesn't turn on either. Do you have any suggestions? Thanks xxx

Hi Lullita.
This is a common problem on iphone 4s using ios 7.
I have had this problem myself.
Try basic troubleshooting : http://support.apple.com/kb/TS1559
If that doesnt help, try this.
Go to youtube and type this " 4s wifi grey" ... You will find a couple of videos describing a method which includes blowdrying your phone and puttin it into freezer. This method does fix your wifi, I know I have tried it myself, and it brought back my wifi and bluetooth, which were greyed out.
But be very careful, this method can damage your device if youre not careful enough. Do this at your own risk.
Hope I helped.
Donnie.

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