Dr Lave wrote:
Oooh, could this be the fact that its non standard? The metal connector is a bit longer to include the talking hands free data.
Actually, The extra band on the connector is to include the mic signal which doubles as the pause switch.
The connector itself is not longer. However, the socket on the iphone is recessed and most connectors won't be able to insert fully, they need the housing to be narrow to fit into the recessed bit.
From what he says, his headphone socket probably is knackered.
I would try a bit of isopropyl alcohol or contaclean on the connector and try to clean the socket contacts by inserting it a few times, but if that doesn't help then the socket will need to be changed.
Check with another set of headphones first of course in case it's the plug / cable that's at fault.