Iphone 3g doesn't get internet signal?

At one point the internet just stopped working. When you go to settings and click on WI-FI networks it looks like it wants to search for a network but then it stops and nothing.

Plug it into iTunes and Restore.

Most common reasons are the #6 cable being disconnected on the inside of the phone or damage to the logic board causing the Wi-Fi to fail, usually because of liquid damage.

Also if your phone has had it's baseband upgraded to allow an unlock it can sometimes kill the Wi-Fi.

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