| Panic String / Code | Likely Meaning | Recommended Action | | :--- | :--- | :--- | | Missing sensor(s): mic2 , Prs0 , TG0B | Charging port, power button, or sensor flex issue | Replace the charging port or power button flex cable | | SMC PANIC - ASSERTION FAILED | Power management or sensor controller failure | Check and replace charging port, Taptic Engine; logic board repair | | i2c (e.g., i2c0 , i2c3 ) | Communication failure between CPU and a sensor | Often the screen, charging port, or front sensor assembly | | AOP PANIC | Proximity sensor or charging port issue | Replace earpiece flex (proximity sensor) or charging port | | SEP Panic | Secure Enclave Processor or Face ID/Touch ID failure | DFU restore; professional repair | | ANS2 not responding | NAND flash storage failure | Professional microsoldering repair required | | WDT timeout , Watchdog | App or sensor not responding; often charging port related | Replace charging port assembly; check battery connection |
A occurs when the iOS kernel detects an unrecoverable internal error, resulting in a forced system reboot.
Paste the raw text into an online panic log parser or a community-driven diagnostic tool to read the breakdown. Decoding Common Panic Log Error Strings iphone idevice panic log analyzer
Troubleshooting iPhone Crashes with an iDevice Panic Log Analyzer
Users look for files named starting with panic-full or kernel followed by a timestamp. | Panic String / Code | Likely Meaning
: Plug your iPhone into your PC and tap "Trust" on the phone screen.
When an analyzer processes your log, it will point out key strings. Understanding these strings helps you plan your repair strategy. Error String / Sensor Name Common Hardware Cause Typical Fix SMC min/max / Prs0 Barometric Pressure Sensor fault Replace the charging port flex cable assembly. Mic2 Top/Rear Microphone failure Replace the power button or flash flex cable. TG0B Battery gas gauge communication error Reconnect the battery or replace the battery. Thermal Mitigator / AOP Proximity sensor or front camera flex fault Replace the earpiece/front sensor assembly. Watchdog Timeout Missing communication from a vital sensor : Plug your iPhone into your PC and
For users who do not want to install software, several reputable web-based utilities exist. You simply copy the text from your iPhone, paste it into the browser-based tool, and hit analyze. The site matches your error strings against a crowdsourced database of known iOS hardware faults. How to Decode Key Panic Log Error Strings
Usually indicates a faulty sensor or disconnected cable.
: The tool highlights potential culprits in bold red , often identifying missing sensor signals (like I2C bus errors) that cause the "3-minute restart" loop common in newer iPhones. Impact on Repair Strategy
On a non-jailbroken device, panic logs are stored in: