thermalmonitord watchdog timeout on iPhone

A thermalmonitord watchdog timeout means the thermalmonitord system process did not respond within the allowed time, so the watchdog forced the iPhone to restart and wrote a Panic-Full log. It falls under Sensor / flex cable, with High severity. Not every hang is a hardware fault: read the other lines in the log to tell a software problem from a failing part. Scan the log with the Panic Scan app to get a verdict for your phone.

Basic information

Process

thermalmonitord

Category

Sensor / flex cable

Severity

High

What it means

The thermal monitoring service got too little sensor data for 180 seconds. If the log has a Missing sensor(s) line, it's hardware; if not, it's usually software.

Errors in the same category

• Sensor / flex cableAOP NMI POWERPower button flex / front camera assemblyHigh
• Sensor / flex cableAOP PANICAlways-on processor (AOP) and sensorsHigh
• Sensor / flex cableProximity / ambient light sensorFront sensor assemblyMedium
• Sensor / flex cableGyro / accelerometer / compassMotion sensors on the logic boardMedium
• mic1Missing sensor mic1Bottom microphone
• mic2Missing sensor mic2Rear / top microphone
• mic3Missing sensor mic3Front microphone (near the earpiece)
• prs0Missing sensor prs0Pressure sensor (barometer)