Device Care
USB-C “Liquid Detected” Alert Won’t Clear Hours After Rain Exposure
Never Use Rice or Compressed Cans Too Close: Silica dust and starchy grains lodge inside recessed USB-C contacts, turning a temporary moisture warning into a permanent port replacement.
iPhones measure micro-impedance across the USB-C configuration pins (CC1/CC2) before engaging Power Delivery negotiation. When rainwater mixes with compacted denim lint inside the port base, tiny conductive bridges keep triggering the warning long after the chassis surface looks dry.
Safe Clearing Protocol
- Unplug every cable immediately and tap the phone gently palm-down with the USB-C port facing downward.
- Place in a cool, ventilated room facing gentle room-temperature airflow for 45 minutes (no hairdryers above warm).
- Charge wirelessly via MagSafe/Qi2 overnight while the connector pins finish equalizing.
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