RE: Recording Audio Problem Dell Insipiron 14z (5423)
Check the cable connection in the bezel (the plastic that surrounds the display screen).
Go to the 14z 5423 support page and click on Manuals, then click on "Owner's Manual". That is the Service Manual with instructions and picture of how to take apart the laptop. Go down to the section "Removing the Camera Module" and you can see a picture of where the connection is, with instructions of how to get to that area.