Chosen Solution
My wifi is not picking up any signals. Have gone thru the steps illustrated by Apple to reset the network settings. Have also tried restoring my iPhone completely via iTunes. Even turned off 3G to force wifi, but still not seeing any signals.
Sounds like you need to replace the antenna, unfortunately it doesn’t seem that iFixit has this part, looks like you can find it on a bunch of other sites though, like here.
My WIfi still cannot connect despite all efforts
