My iPhone isn't picking up any Wi-Fi?

Last week my iPhone's Wi-Fi just stopped working. It isn't picking up any networks, not even at home. My brothers iPhones are working fine on the home network but mine isn't. Whenever I click on it, it just loads and stops - nothing else. It won't let me type the password!

Try Reset Network, if that fails, restore entire phone.

  • Worth picking up an Iphone 4 for $279? It's not the S model, I don't believe, but is that a good price? Or can I find something significantly better for the price? If so, please drop some names for me. Would prefer if this was an established brand - respect by both buyers and tech-savvy reviewers (Cnet.com, etc).
  • Why is my laptop not picking up my Wi-Fi but my iphone is? I have an 'Acer Aspire One Happy 2' laptop that runs on windows 7. I have just gone to my grans and her Wi-Fi works fine on my Iphone 4 but my laptop is not even picking up the signal. My laptop works fine at the Mcdonalds round the corner from me so why isn't it working here. I even typed it in manually and it didn't work, its not picking up any signal at all
  • Placing a pre-order at one store, picking up at another? So I pre-ordered an iPhone at Best Buy, but I, like many others, got the annoying email about how much they care, but your phone won't be ready for up to 28 days. So, even though the store I pre-ordered the phone at is out of the one I got, there are about 4 other stores in my area who have it in stock. Would it be possible to just go to a different Best Buy to pick the phone up, or are the adamant about you sticking with the store you placed the pre-order at?
  • My laptop isn't picking up Internet? So my wireless is turned on, I'm currently connected to it on my iPhone, iPad and my sisters laptop. However, when my laptop searches for Internet, it shows neither my wireless, or my neighbors which is also discoverable by my phone (although locked). What can be the problem? I have Windows 7, it used to work and find the Wi-Fi, then in an attempt to put a password on my Wi-Fi, I'm guessing I must have changed the settings? Any help?