Audio jack problem, no speaker sound, red light
My MacBook has no sound except through headphones or external speakers. When I play a song, a red light appears inside my audio jack and there's no sound. The volume controller in the menu bar is grayed out. I tried poking into the audio input jack as mentioned in many forums, with no luck. Can I fix it by opening my MacBook? Is there any way to fix this other than poking something into the audio jack?
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