How to Fix Moisture Detected Error on Samsung Galaxy
Safely dry the USB-C port, clear debris, and reset system cache to clear the persistent Samsung Galaxy moisture detected charging warning.
- Read the tools, materials, safety notes, and steps below for free.
- Tap Start Camera Coach when you want hands-free voice help.
- Allow camera and microphone. Point your phone at the work; the coach watches your progress and tells you the next step.
🧰 Required Tools & Equipment
- ✓ Microfiber cloth
- ✓ Desk fan or cool-air blower
- ✓ Wooden or plastic toothpick
- ✓ Flashlight or phone light
- ✓ Wireless charging pad
📦 Materials & Supplies
- ✓ Silica gel packets
- ✓ Airtight plastic bag
⚠️ Safety Checkpoints & Warnings
- • Never plug a charging cable into the phone while the moisture alert is active.
- • Do not use hot hair dryers, compressed air cans, or oven heat, which melt internal seals and damage port pins.
- • Never insert metal objects (needles, safety pins, paperclips) into the USB-C port.
📋 Step-by-Step Guide (5 Steps)
Disconnect Cable and Power Down
Immediately unplug any charging cables or USB accessories from the phone. Power off the device completely to prevent electrical short-circuiting across the wet charging pins.
- • Charging cable is fully separated from the phone.
- • Phone screen is completely black and powered off.
- • Leaving the charger plugged in hoping it will charge anyway.
- • Restarting immediately without letting the device sit off.
Tap Out Excess Liquid
Hold the phone vertically with the USB-C port pointing directly toward the floor. Gently tap the bottom edge against the palm of your hand 5 to 10 times to shake free standing water droplets.
- • Phone held vertically with port facing down over an open palm.
- • Visible water droplets appearing on the palm or falling onto a cloth.
- • Violently shaking the phone, which forces water deeper into the speaker grilles.
- • Holding the phone screen-up, allowing water to pool inside the chassis.
Air Dry with Gentle Airflow
Place the phone standing upright or angled with the port exposed in front of a cool desk fan. Leave the phone in the dry airflow for at least 30 to 45 minutes to evaporate lingering moisture.
- • Phone positioned 6-12 inches away from a running desk fan.
- • Charging port aligned directly with the fan's air stream.
- • Using a blow dryer on warm or hot settings.
- • Putting the phone in uncooked rice, which leaves dusty starch deposits inside the port.
Inspect and Clean Debris from Port
Shine a flashlight directly into the USB-C port to inspect for damp pocket lint or dirt bridging the center pin connector. If debris is visible, gently sweep it out using the tip of a dry wooden toothpick.
- • Flashlight beam illuminating the inner cavity of the port.
- • Toothpick tip gently scraping the perimeter space around the center tongue without bending it.
- • Using a metal SIM ejector tool, sewing needle, or paperclip.
- • Prying aggressively against the delicate center contact board.
Power On and Clear USB Cache
Turn the phone on. If the error icon persists despite a dry port, go to Settings > Apps, enable 'Show system apps', select 'USBSettings', tap 'Storage', and tap 'Clear data' and 'Clear cache'.
- • Phone screen active on the USBSettings app info page.
- • Storage cleared dialog confirmed in Android settings.
- • Forgetting to toggle 'Show system apps', making USBSettings invisible in the list.
- • Clearing cache while moisture is still physically present in the port.
Credit: inspired by an original tutorial by Samsung India — watch the original on YouTube.
Don’t have everything?
- No Silica gel packets? A dry, well-ventilated room with a running oscillating fan
- No Wooden or plastic toothpick? Plastic dental flosser pick (flat edge only)
- No Wireless charging pad? Allow phone to air-dry completely before attempting wired power