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SMC panic · sensor array code
iPhone 17 Pro / Pro Max panic 0x400000 (4194304)
Taptic engine (single vendor list)Single source
Models: iPhone 17 Pro / iPhone 17 Pro Max · boards v53, v54
Log line: S.sensor array 0 - 7 is … with 4194304 (or 0x400000) in word 1.
Printed in decimal on this generation.
Where to look: Taptic engine
Bench checks
Keep every flex connected; swap-test with a known-good OEM/premium part and run past 3 minutes.
Same number, different meaning on other iPhones
Bit layouts change between generations. Do not reuse these meanings on iPhone 17 Pro / Pro Max.
| Model family | Meaning there |
|---|---|
| iPhone 14 / 14 Plus | Wireless-charging coil / back-glass flex |
| iPhone 15 Pro / Pro Max | Wireless-charging flex (back glass) |
| iPhone 16 Pro / Pro Max | Wireless-charging IC (under the SIM tray) - single vendor list |
Sources
- Pikabu (iREMservice) - iPhone panic-full keywords and SMC codes incl. iPhone 16 / 17 Pro (accessed 2026-10-02)
Hinglish me
iPhone 17 Pro / Pro Max me 0x400000 (4194304) ka matlab: Taptic engine (ek vendor list).
Kahan dekhein: Taptic engine