Ok so I have a iphone3g that will not charge nor conect to the computer.
However if I turn the iphone off then plug it in to the computer the iphone turn on and boots but still will not charge nor sync. I cant get it to go into DFU mode either.
I though about replacing this part iPhone 3G Microphone Antenna USB Dock Speaker Assembly - eBay (item 320487286952 end time Jun-11-10 21:30:50 PDT)
On a mac forum I get mixed comments such as its the charging port or its a software bug