iPhone 14 — sensor array 0x300000: Charging port flex + proximity sensor

High confidenceVerified sourceSMC: silent sensor

On the iPhone 14, 0x300000 means: Charging port flex + proximity sensor.

What does this code mean?

SMC “BSC failure” panic: the system management controller (built into the SoC) periodically waits for a response from each mandatory sensor; here, two sensors are missing: charging port (0x100000) and proximity (0x200000). With no response, it forces a restart, which repeats roughly every 3 minutes (≈180 s) as long as the sensor stays silent.

Which part to test first?

Check/test both flexes (charging port and front sensors) with known-good parts.

The same code on other models

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Sources