0x380000 — SMC: silent sensor
SMC “BSC failure” panic: the system management controller (built into the SoC) periodically waits for a response from each mandatory sensor; here, all three sensors (charging port, proximity, wireless coil) are missing at the same time. With no response, it forces a restart, which repeats roughly every 3 minutes (≈180 s) as long as the sensor stays silent.
On iPhone 15 Plus, iPhone 15
Wireless coil + charging port + front sensors
SMC “BSC failure” panic: the system management controller (built into the SoC) periodically waits for a response from each mandatory sensor; here, all three sensors (charging port, proximity, wireless coil) are missing at the same time. With no response, it forces a restart, which repeats roughly every 3 minutes (≈180 s) as long as the sensor stays silent.
First check
Check all three flexes; a simultaneous failure points to corrosion or a common board fault.
On iPhone 16 Plus, iPhone 16
Charging port + wireless coil, or logic board sandwich separation
SMC “BSC failure” panic: the system management controller (built into the SoC) periodically waits for a response from each mandatory sensor; Repair Wiki associates this value (3670016 in decimal) with an undetected charging port and coil, or with a logic board / SoC separation. With no response, it forces a restart, which repeats roughly every 3 minutes (≈180 s) as long as the sensor stays silent.
First check
Check the charging port and coil flexes first; if they are good, measure the test point given by Repair Wiki (≈0.350 V expected in diode mode; OL = sandwich/SoC separation).