iPhone 17 Pro — sensor array 0x200000: Charging port assembly: USB-C flex or barometric pressure sensor module

Low confidenceVerified sourceSMC: silent sensor

On the iPhone 17 Pro, 0x200000 means: Charging port assembly: USB-C flex or barometric pressure sensor module (one of the two sensors of code 0x600000).

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; Repair Wiki attributes 6291456 (0x600000 = 0x200000 + 0x400000) to the charging port flex and asks to also check the barometric pressure sensor: two sensors carried by the bottom assembly. 0x200000 alone would correspond to one of the two. Deduced from a single source; sensor named TAOP in the observed case, an undocumented key. 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 the seating and condition of the USB-C charging port flex and the barometric pressure sensor / bottom microphone module (corrosion after liquid), test each with a known-good part, then measure the FPC connectors in diode mode.

The same code on other models

Field cases

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Sources