What happens if my Wi-Fi icon on my iphone won't turn on?

Like I have an iphone 4/4s and it has a modem Firmware: 04.10.01
and the Wi-Fi button is just turned off, I'm unable to turn it on, the letters are in grey.
I'm trying to figure whether I can fix this on my own or should i go get help.

Can and iPhone 4 or 3 case fit on an iPod 4th generation?

I have an iPod but not an iPhone. My friend said you can put an iPhone case over an iPhone. I course it's not gonna fit very well but does it at least work a little. Enough that I won't slip out all the time. Which iPhone case would go best with an iPod 4?

Pay as you go iPhone on o2, internet usage?

How does internet usage work on a pay as you go iPhone? Say if I wanted to connect to my Wi-Fi network at home on my iPhone, will it cost me money? What about if I connect to the internet not using Wi-Fi? How much of my credit will it take?

IPhone 4S keeps turning off and on?

I've fixed another problem on the phone where it would just loop the white apple logo turning off and on.

Now it just randomly turns off and on, even after trying a system reset.

Any suggestions to fix it?

Should I ask for Ugg Boots, a Northface Jacket, or an iPhone 5 for Christmas?

I really like Ugg Boots, Northface Jackets, and the new iPhone 5.
I think I'll ask for all of them but I'll probably have to choose between the boots and the jacket because he has no idea what either of them are lol. So I'll have to go with him. I really want a solid white Northface jacket that I saw but I also really want the short tan Ugg Boots. I also want the iPhone 5.
Should I ask for the iPhone 5 and Northface jacket for gifts from my Dad and then ask my mawmaw for the Ugg boots? Good idea?(;

What iPhone Apps / Cases do you recommend?

I need some iPhone apps that will be useful for everyday, and that I can have fun with. I'm a 14 year old girl, and I need some help. Also, cases. Right now I have a stupid thin glittery case my dad got me because it looked 'good for my 14 year old'.No, I want something protective, but not an Otterbox.

My iphone 5 case covers bottom part of camera?

I bought an amazing, unique case from abroad and a few days later I realised that it covered a little part of the bottom of my iphone's camera/lens. I know I could easily crop out a bit of the photo, but it's still bugging me a lot. The case is made of rubber, so I was wondering if I could sand it down or?

Can I bring verizon iphone 5 from USA to India?

I'm staying in India and i want an iphone 5. But it's too costly in India. I have read about the verizon's iphone 5 coming unlocked even with a 2 year's contract with dollar 199 price only. I want to know that can my friend send it to me from there and can i use it in India? And what will be the total price i would incur? Will i be able to use it with airtel or aircel in india?

New iphone5 with older computer?

I just purchased an Iphone 5. I connected it to my computer I have a macbook 13" that I bought in 2009, and it is telling me that it needs itunes 7 to run it. I tried downloading the latest itunes and when i try to install it is says I need Mac Os X 10.6.8 or later. My computer is running 10.5.8 and when I check for updates it says there are none. How do I get my iphone 5 to work on my computer? Specifically to connect to itunes so I can put all my music and apps on it.