Mid 2014 MacBook Pro 15in that gives the boot chime, but after that there is no output device other than Digital Out. Bluetooth and wired headphones work. Tried SMC and Nvram reset with no change. Called Apple support and they directed me to delete a file in the library folder although I can no longer remember the name of the file. None of which work. When I open the device and take out the logic board everything seems fine and no chip seems excessively hot. When I acquired this computer about a month ago without the audio working I did a complete wipe of the SSD with a fresh install of the OS. Does anyone have any thoughts?