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Missing sensor

Missing sensor mic3: Front microphone (near the earpiece)

Part to check: Earpiece assembly / front sensor assembly (depends on model)

Missing sensor mic3 means the front microphone (near the earpiece) is not sending data to the thermalmonitord process. After about 180 seconds without that data, the iPhone restarts on its own and writes a Panic-Full log containing the line Missing sensor(s): mic3. Usual location: Earpiece assembly / front sensor assembly (depends on model). It is one of the easiest errors to trace because the log names the sensor directly. Scan the log with the Panic Scan app to see every missing sensor at once.

Basic information

Code
mic3
Missing sensor
Front microphone (near the earpiece)
Location
Earpiece assembly / front sensor assembly (depends on model)
Confidence
Possible

Related parts

  • Front sensor assembly
  • Earpiece flex

Notes

Rare; location differs between models. Check the schematic before replacing.

Errors in the same category

For reference only, compiled from repair documentation and community data. The same error can come from more than one part; always confirm on the actual device.

All errors