47Fix common sound problems
If you can’t hear any sound on your Mac, make sure there are no external audio devices connected such as headphones. Next, go to System Preferences > Sound. Click the Output tab and make sure internal speakers are selected. If you can’t see this option, contact Apple Support. If “Internal Speakers” is selected, turn up the volume and perform an NVRAM reset (see bit.ly/reset
nvram). If you hear the normal startup sound, your Mac’s issue is software related. Otherwise, it’s likely a hardware problem.
It may “sound” obvious, but check the headphone jack…