Trivial Fixes for Mac Sound Not Working Issueīefore you embark on the complex sound troubleshooting process, we’d recommend you try out a few trivial fixes to resolve no sound issues on your Mac. MacBook Pro speakers not working but headphones do?ġ.How do I reset the sound on my MacBook?.Why does my Mac suddenly have no sound?.FAQs About Fixing ‘Mac Sound Not Working’ Issue.Update/Downgrade macOS to the Latest Version Reset Core Audio Using Activity Monitor.Check if the Sound Is Working on Other Apps Reconnect Audio Devices and Choose the Right Output Device Trivial Fixes for Mac Sound Not Working Issue Regardless, take a note of what happens and let me know how you went. This will try and run diagnostics from the internet instead, so you will need to allow more time for it to complete. Note: If pressing and holding the D key at Step 3 doesn't work, start again at Step 1 and, at Step 3 press and hold both the Option D keys instead. If the diagnostics test does find errors, take a note of what they are.a brief description of any errors found plus further instructions.Once complete, one of two things will appear on the screen:.Wait for Diagnostics to finish (this typically only takes a few minutes).Immediately press the D key and keep it down until you see the Diagnostics screen appear.If it doesn't, then it's time to test your hardware with Apple Diagnostics.įollow the steps below to run Apple Diagnostics: Turn your computer back on with the power button.Īfter resetting both the NVRAM and SMC, use your Mac to determine if you still have no sound output.Press at the same time shift option control (on the left side of the keyboard) and the power button and hold all these down for at least 10 seconds.To reset the System management Controller on your particular MBP, follow these steps: Once done, proceed to resetting the SMC as well. speaker volume, screen resolution, startup disk selection, time zone information, etc). Note: When you log back in you may need to readjust some of your system preferences (e.g. Let go of the keys and let your Mac reboot normally.Hold those keys down until your Mac reboots again and you here the startup chime for the second time.You have to make sure you press these keys before the gray screen appears or it won’t work. Press the power button and then press the command option p r keys.Yes, a full shut down, not just logging out.

Here’s how to reset the NVRAM on your particular MBP: Your Mac uses Non-Volatile Random-Access Memory (NVRAM). Before following the steps below, ensure you have no external hardware connected and make sure you use the built-in keyboard. I know you've already reset the NVRAM (what you're referring to as PRAM), but the first thing I'd try is to reset both the NVRAM and SMC in that order.

No audio on macbook pro