回答“No audio, and no "Internal Speakers" in SystemPrefs>Sound>Output”I have the same problem with my MBP 15" retina late 13” I just got an email from the service centre today. They told me that the motherboard had to be changed and that it will cost me 7499,-kr which is about $881. Thats not an option that I can accept, I payed 10000,-kr or $1175 for it under one year ago. I have heard everybody telling me to get a Mac for video editting, so finally I did and this Is what happened after using jack plug with my Spectrum DX7 transmitter for simulator on Liftoff "Drone simulator" to get some stick training for RC drone racing. This is the first time I’ve had a hardware problem on a laptop or a computer except laptop batteries. Never heard of such a bad product before that can’t handle normal use of a jack plug and get this sort of price tag on the repair. So I guess this was my first and last MacBook!!