
If you have an iPhone 7 or 7 Plus, you most likely are facing an iPhone Audio IC issue.
The way to test is to open Voice Memo and try recording if the app shows “Recording Failed” or “No Audio Devices” error then the Audio IC on your iPhone is in need of some attention.
common symptoms:
- No microphon or no speaker
- grayed out speaker on a call screen
- Voice Memo app not recording
- “Recording Failed” error
- “No audio devices found” error
- a long 5-10 minutes boot time
- Static noises during calls
How do We Fix this issue?
Here is one of many articles that have been released on iPhone 7 and iPhone 7+ called Loop or Audio Disease.