3 Why do I have "No input or output devices found" in MacBook 2017 sound
All of a sudden, I have no sound on my MacBook Air. If I hit F10, F11 or F12, I get the circle-slash “forbidden” sign.
After searching for solutions, I think I may have reached the end of the road. Is there anything more I can do?
- I tried pushing in and pulling out an earphone jack several times. There is no red light on.
- I put a tiny screwdriver in the hole and moved it around, no response.
- I reset the PRAM.
- I reset the SMC.
- I ran the diagnostic test — no errors.
- I restarted in recovery mode and ran first aid. I reinstalled Catalina OS. I never get a chime.
- I upgraded from Catalina to Big Sur.
- I deleted the BezelServices preference file.
- I deleted ‘coreaudiod’ from Activity Monitor.
The only things I have left to do is
(1) wipe the machine entirely and restore.
And (2) follow this guidance for replacing the audio cables on a different model MacBook from mine.
I have a MacBook Air (13-inch, 2017). I had the logic board repaired after a water spill about six months ago from a third party vendor. He also replaced the I/O Board Flex Cable and Trackpad/Keyboard IPD Flex Cable.
I’d rather not buy a new computer. I know from reading Apple Support Communities that bringing it to the Apple Store, they’ll just want to repair the logic board, and that’s more than the computer is worth.
Can I just buy a bluetooth headset or USB audio adapter? Will that give me audio input and output?
Sometimes in "output" in the "Sound" System Preferences pane I get the message:
Select a device for sound output: Name: Apple TV // Type: Airplay:
I don't have an Apple TV, but maybe the guy in the next apartment does. Still, when I try to turn up audio, I still get the circle-slash sign.
Coincidentally, my VLC has been having problems. It plays, but it freezes if I advance the video. It never used to do this before.
