2017 27" iMac Not Recognizing built in speakers
UPDATE: I disconnected the headphone flex from the logic board and now my built-in speakers work. See thread below for my theory.
I have a 2017 27" iMac. It does not play sound through the speakers. It does play sound through the headphone jack.
The sound preferences only show Headphone as an available output - no built-in speaker option to select. This leads me to believe that the headphone jack might be "stuck" and fooling the computer into thinking something is plugged in.
If I connect headphones they go in normally and play sound normally. When I remove the headphones it does not bring back the built-in speaker. I've tried aggressively plugging and unplugging the headphones in case that might dislodge or correct the problem if it is a mechanical issue.
I've tried resetting the PRAM and that did result in a startup chime booming from the built-in speakers at startup. However, upon booting the issue was not resolved - headphones is the only output available.
I'm in the process of updating the software but am not confident this will fix it.
Does anyone have any tips or things to check?