I've got a 3gs that the home button does not work, I've tried 3 dock connectors (fully working) and still the home button does not work, also tried a different home button (tried tested in another 3gs working) still no luck? So I'm thinking motherboard? But don't know what to do Also a note, I had a fully working 3G and I striped it to change rear case, when I assembled back the home button stopped working also? and tried all the above. Any help will be appreciated thanks.