Hi all

I have jailbroken my iPhone 3G using redsn0w and unlocked using ultrasn0w, The iPhone works well except the Wi-Fi never works. The dial spins to no avail, and when I try to manually join a network it says "Could not scan for networks". I have tried to reset network settings, reset all settings, restore and jailbreak again, but nothing seems to work. I have a Mac address present in Settings>General>About but the mac address wont show up in iRecovery when i type in "radio readnvram". Any suggestions will be helpful. Thanks