Hi, I attempted to unlock my iPhone 3G and during this process WiFi was working great, but after I finished the process of unlocking my iPhone, the unlock failed, and so I restored the phone. Now, the iPhone is having problems with WiFi, it can pick up my WiFi network and sometimes connect, but whenever I go to use any internet, it doesn't work or disappears immediately. I've reset the iPhone, used DFU mode, restored from an old back up, restored and didn't use a back up, reset the 'Network Settings', and nothing is working. I have another iPhone and it is picking up WiFi perfectly while my 3G still isn't working. If all fails, I'll just send it out to Apple for a replacement. Any suggestions?