Example report — upload your own panic-full file to get yours.

iPhone 15 Pro Max · iOS 26.6.1 (23G83) · 1 log(s) analyzed

Wireless charging coil (MagSafe, back glass)

High confidence

Next test

Check the wireless coil flex (back glass) and its connector: seating, creases, corrosion; test with a known-good back glass/coil from the same model.

Before you repair

The sensor on the wireless coil flex is paired/calibrated to the logic board: a non-Apple back glass or coil can reproduce exactly the same panic. Use an Apple part (Self Service Repair + System Configuration, or Repair Assistant on iOS 18+).

Read the full page about this code ›

Step-by-step test

  1. 1Note how often the iPhone restarts (a regular ~3-minute cycle confirms a missing sensor).
  2. 2Open the back (back glass on most models) and inspect the coil flex: tears, folds, corrosion, connector seating.
  3. 3Reseat the coil connector, reboot and wait 5 minutes without restart.
  4. 4If the panic returns, test with a known-good coil/back glass of the exact same model before ordering.
Difficulty
Advanced
Repair time
45–90 min

Tools

  • Heat plate or heat gun
  • Pentalobe and tri-point screwdrivers
  • Spudger and picks
  • Back glass adhesive

Find the part

Indicative search links: always check compatibility with the exact model.

Technical details›

Why this part

High confidenceVerified sourceSMC: silent sensor

SMC “BSC failure” panic: the system management controller (built into the SoC) periodically waits for a response from each mandatory sensor; here, the sensor carried by the wireless coil flex has stopped responding. With no response, it forces a restart, which repeats roughly every 3 minutes (≈180 s) as long as the sensor stays silent. Reproduced on iPhone 15 Pro by disconnecting the coil (DFRWS 2025).

Next test

Check the wireless coil flex (back glass) and its connector: seating, creases, corrosion; test with a known-good back glass/coil from the same model.

Before you repair

The sensor on the wireless coil flex is paired/calibrated to the logic board: a non-Apple back glass or coil can reproduce exactly the same panic. Use an Apple part (Self Service Repair + System Configuration, or Repair Assistant on iOS 18+).

Details per log

  • exemple-panic-full.ips2026-10-07 12:50:58Wireless charging coil (MagSafe, back glass) ›

    iPhone 15 Pro Max (iPhone16,2) · incident 00000000-0000-0000-0000-000000000000

    SMC PANIC - ASSERT: target/d84/target.cpp:249: 0, SMC BSC failure, TAOJ ----

    S.sensor array 0 - 4 is 0, 4194304, 0, 0 → 0x400000