If you see a red light inside the 3.5mm jack, the Mac thinks an optical cable is plugged in.
Your CPU will now run at 65–75°C under load instead of 95–100°C. The audio chip will remain stable. macbook pro 2012 audio driver windows 10 hot
She opened Sound settings. For the first time, "Speakers (Cirrus Logic CS4208)" appeared. Headphone jack detection worked too—plugging in headphones automatically muted the speakers. The audio was crisp, with no crackling. If you see a red light inside the 3