I just aquired the i730 in December off ebay and i love it. The only issue i have it that when turned on the wireless manager says "wifi unavailable".
i've tried soft and hard resets and many different acces points. i've looked through all the faqs and still nothing. i'm running wm5 that came installed on the phone. i've never been able to even see an access point from the second i got it.

sounds like the unit is defective. if you turn on the wifi switch, even though you may not be able to connect to an AP, you can still sniff or "see" them...

sounds like its defective and the seller sold you a defective phone. you can take it in to verizon and have them smoke it over but they would probably charge you. and get the 3rd party insurance...

what do you mean by smoke it over??