Not recognised in computer

David,

There is a software setting in the phone to force it into "Charge Only" mode. Maybe it is stuck in that mode? My old droid phone would ask when it was plugged in. Does yours prompt you at all when you plug it in to a computer? If not, then it's probably the port on the phone is bent out of shape and not getting a good connection. I personally think the micro-usb jacks aren't very well designed. Probably would need to replace the daughterboard or resolder on a new female connector. Instructions for that here.

Best of luck