Panic error

SEP Panic panic on iPhone

Part to check: Secure Enclave (CPU / NAND)

SEP Panic 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 Secure Enclave (CPU / NAND). 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
SEP Panic
Category
CPU / RAM
Severity
Critical
Confidence
Likely
Part to check
Secure Enclave (CPU / NAND)

What it means

The Secure Enclave (SEP) failed to boot or communicate. Related to the CPU, NAND or the link between them.

Common causes

  • CPU / NAND solder joints
  • NAND replaced with mismatched data
  • SEP software issue (rare)

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