I had my laptop plugged in via a jack to a large speaker, when I plugged the speaker in to the wall (via and extension plug) everything immediately cut out, the speaker powered off and the macbook turned off and immediately restarted. Now I have no sound on my macbook and when I open up sound preferences there isn't a output or an input visible. I tried resetting PRAM and SMC but nothing's worked I assume the electrical surge has caused some hardware damage, does anyone have an idea what exactly it may have done? Could I just replace the soundcard and hope for the best? At the moment I'm using a very cheap external usb sound card which is working without issue but is of a very poor quality and is not a permanent solution.
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No sound input or output devices found
- Thread starter trada17
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I wonder if the speaker feed power into the sound card and popped a fuse on it. The sound card is replaceable, https://www.ifixit.com/Guide/Retina+MacBook+2015+Audio+Jack+Board+Replacement/45579
Another option is to use a Bluetooth speaker or get a better external DAC, but the DACs can be a bit pricey.
Another option is to use a Bluetooth speaker or get a better external DAC, but the DACs can be a bit pricey.
If you think that replacing the sound board is beyond your capabilities, take it to the Apple store or authorized repair shop for an estimate.
In a 2013 MBA with similar symptoms, this was a failed I/O board. In talking with the Apple Store, it seems every model/year is different. In our case, it was just $150 or so to replace. If possible take it to Apple and have them diagnose and estimate.