My second-hand 3Gs (Craigslist) is missing the SIM card tray. New one has been ordered. In the mean time, the wifi doesn't work. I can toggle it on and off in the normal phone settings, and I can go to airplane mode and back, but it doesn't see any networks. It spins the little icon for 1 second and then perpetrates like there's no network in range (of course there is, I have 3 laptops connected to it constantly, as well as my 2G iPhone). I uninstalled SBSsettings via Cydia to see if that toggle (it was on) was maybe somehow conflicting with the normal setting. Any other suggestions?