PMU / power management panic on iPhone

PMU / power management 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 Power IC (PMU). Severity is rated critical, 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

PMU / power management

Category

Power / PMU

Severity

Critical

Confidence

Likely

Part to check

Power IC (PMU)

What it means

The power management unit reported an error or stopped responding.

Common causes

• Faulty PMU / cracked solder joints
• Shorted secondary power rail
• Weak battery or input power

Errors in the same category

• Power / PMUSPMISPMI bus (PMU, charging IC, auxiliary ICs)High