My macbook pro It has remained without sound and the connector has a red light

my macbook pro It has remained without sound and the connector has a red light. The analogic sound doesn't work. Thanks for your attention...

    Plug in and  remove the headphone.
    If you see red light in the headphone port, plug the headphone
    in and out of the port 5 or 6 times to flip the microswitch inside.
    Sound output may be stuck in the digital mode.
Best.

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    Willtc92 wrote:
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