Wifi on ios7

Since I updated my iPhone 4S to iOS , I can no longer activate Wi-Fi nor Bluetooth.
I tried already everthing as told on most forums on the internet, but nothing worked out.
What can I do to get my Wi-Fi and my Bluetooth active?
Thanx, Gizz.mo

I don't know if you've tried the fixes mentioned in the following, but here it is....
If IOS: Wi-Fi or Bluetooth settings grayed out or dim...
http://support.apple.com/kb/TS1559
If the grayed out options is not what you are experiencing, then check Settings>General>Restrictions,  it may be that it is turned on.

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