my macbook pro red on heart Tel port and no sound, what I can do to fix

my macbook pro red on heart Tel port and no sound, what I can do to solve?

The red light in the headphone when your Mac is convinced that he took an optical connection via this port.

You need ti insert and remove the headset plug a dozen times to convince him to change the setting of metal cap and disable Optics (the red light is the optical sound).

Tags: Notebooks

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