How to Repair No Sound on a MacBook

Sometimes your MacBook may not produce sounds. Signs that your Mac doesn't have sound include a disabled symbol that appears on the sound icon as you adjust the volume of your laptop and a blinking red light from the audio output port. Before you decide to replace your laptop with a new one, there are simple tweaks you can do to fix the problem yourself. You don't even have to take your unit to a service center.

Things You'll Need

• Lint free cloth
• WD-40
• Earphones

Instructions

1. Turn off your MacBook and remove the battery adapter so that there is no electric current going through your computer.

2. Wipe off the left side of the computer where the earphone jack is located with a dry, clean, lint-free cloth.

3. Aim the nozzle of the can of WD-40 just in front of the earphone jack. Let the nozzle touch the entry of the hole where the earphone plug would normally enter the computer. Squeeze a gentle, quick squirt of the WD-40 into the hole.

4. Wipe away any WD-40 that drips on the laptop case and slowly plug in your earphones into the jack.

5. Rotate the earphone jack in the hole clockwise for about 20 seconds and then remove the jack.

6. Replace the laptop adapter on the left side of the computer. Turn the MacBook on and open an audio file to check the sounds of your laptop.

Tips & Warnings

• Be careful when putting your earphones in and out of the computer. Do not yank or tug. Pull it straight out.

• If your computer still has AppleCare, contact the nearest Apple store or call 1-800-275-2273.

References

• You Tube: Macbook Audio Fix
• Mac Riot: The Fix for No Sound

Resources

• Read this Article in Spanish