Proximity / ambient light sensor panic on iPhone

Proximity / ambient light sensor is a kernel panic that makes an iPhone restart on its own, usually leaving a Panic-Full log under Analytics Data. When this error line appears, the first part to check is Front sensor assembly. Severity is rated medium, and confidence in this diagnosis is likely. Below you will find what the error means and its most common causes; to pin down what is wrong with your phone, scan the log with the Panic Scan app.

Basic information

Code

Proximity / ambient light sensor

Category

Sensor / flex cable

Severity

Medium

Confidence

Likely

Part to check

Front sensor assembly

What it means

The proximity or ambient light sensor is not responding.

Common causes

• Faulty front sensor assembly
• Front sensor flex

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 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)
• TG0BMissing sensor TG0BBattery temperature sensor