iPhone X — prs0: Charging port flex

High confidenceVerified sourceMissing sensor

On the iPhone X, prs0 means: Charging port flex (barometer).

What does this code mean?

Watchdog panic: thermalmonitord no longer receives readings from the Prs0 barometer, mounted on the charging port flex; with no response for ~3 minutes, iOS restarts the iPhone. Typical after a back glass repair (exposed flex) or a charging flex replacement.

Which part to test first?

Test with a known-good genuine charging port flex; inspect the resistors around the flex connector on the logic board.

The same code on other models

Field cases

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Sources