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I am having an issue recently which causes my MacBook Pro 2015, 15", to spontaneously (and randomly?) shut down.

These shut downs do not happen in Recovery Mode or Safe Boot.

Temporarily, before I am able to identify and fix the root cause, I would like to continue using my laptop.

I am actually very happy using Safe Boot for now, I can do almost everything I want to do.

However, I can't figure out how to enable audio output while in Safe Boot mode.

I know it's not really intended, so possible workarounds may be awkward, but how can I hear the sound output from my MacBook while it is in Safe Boot?

The only external speakers I have access to are my iPhone 7's (iOS 13.3) and lots of pairs of headphones (although idk if those count as "external speakers"). I added this information because I wonder if it's possible to stream the sound output through my iPhone perhaps (network connectivity seems to work fine while in Safe Boot), if it is indeed impossible to play audio on the MacBook while in Safe Boot.

  • afaik, Mac doesn't have a 'selective boot' option like Windows, so forget it until you can get the machine repaired. – Tetsujin Dec 31 '19 at 17:00
  • "Some audio input or output devices might not work." See if you can use Audio Midi to channel some audio out support.apple.com/en-us/HT201262 ← Safe mode support article – ankii Dec 31 '19 at 17:26
  • @ankii the audio output devices which won't work are the: Internal Speakers, and Headphones (when connected). They don't even show up in System Preferences > Sound. These are the audio output devices I would like to get to work, and the only way I know of outputting audio from a MacBook (without e.g. a bluetooth speaker). – theonlygusti Dec 31 '19 at 17:36
  • There's probably little or no coreaudio support at all in safe mode. It is, by definition, a minimal OS with just enough to troubleshoot. Listening to the radio is not high on the list of priorities at that point. – Tetsujin Dec 31 '19 at 17:41

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