crackling noise
I have a crackling noise from the left side of the machine. It's not the speaker as it is continual, even when the sound if off totally. Only way to stop it is to turn off the machine.
Any ideas what it could be or a fix? It happened yesterday when I was copying files over to an external HD.
Thanks
MacBook Pro (15-inch, 2017)
2.9 GHz Quad-Core Intel Core i7
MacBook Pro