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Jan 25, 2016 2:49 AM in response to lllaassby LeandroMenezes,I have no red light coming out of the headphone jack and forgot to mention i have no chime sound either , internal speaker is selected on the sound settings preferences , sound was working fine before i did clean install with El Capitain 10.11.3 ...
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Jan 25, 2016 3:04 AM in response to LeandroMenezesby lllaass,- Try resetting the SMC and NVRAM/PRAM
Intel-based Macs: Resetting the System Management Controller (SMC)
- Try starting in Safe Mode
OS X: What is Safe Boot, Safe Mode?
- Boot to Recovery and repair the startup disk
OS X: About OS X Recovery - Apple Support
- If it is repairable reinstall the OSX
How to reinstall OS X on your Mac - Apple Support
- If you do not have a backup use disk utility to restore the internal disk to an external disk so you can try to recover data.
Then format the startup disk and do a fresh install of OSX
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Jan 27, 2016 12:34 PM in response to lllaassby LeandroMenezes,This didn't help me at all , without chime sound i cannot proceed with Pram reset ... Strange that the macbook was working fine before i updated to El Capitain
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Jan 27, 2016 1:06 PM in response to lllaassby LeandroMenezes,Yes i did , i notice else that i am not able to find coreaudiod on activity monitor