My iPhone 4 says searching for network and wifi is unavailable, why is it not working?

[iMore Question]

My iphone 4 says searching for network and wifi is unavailiable why is it not workinhg

I cant connect to internet and my phone doesnt turn on either only when i connect it to the charger but cant make phone calls or text and it says wifi is unavailiable and wifi symbol grey

 

[kch50428]

Re: My iphone 4 says searching for network and wifi is unavailiable why is it not workinhg

Try rebooting.