so when i first got my iphone 3G the wifi worked. but then i turned it off cause i thought it wasted battery. so i turned it on again, and nothing showed up. it looks like this and my dad has an iphone too and his iphone shows the wireless network. so yeah, can anybody help me? i've already tried taking the sim out, restarting my iphone and resetting the network settings. nothing works! please heelpp.