Samsung’s Galaxy S25 is one of the most advanced Android smartphones available today, but even flagship devices can experience frustrating glitches. One of the most persistent issues is the Moisture Detected error on Galaxy S25, which appears when charging the device. If you’ve seen a message like:
“Unplug charger immediately. Moisture or foreign material detected in your charging/USB port.”
You’re not alone. This alert, designed to protect your device, often appears even when there’s no visible moisture present.
Whether you own a Samsung Galaxy S25, Galaxy S25+, or S25 Ultra, this article will help you get your phone charged and back to working correctly. We’ll explain why this happens and guide you through reliable fixes, whether your phone came in contact with water or it’s simply a false alarm.
1. What Causes the Moisture Detected Error on Galaxy S25, and Is Your Phone Even Wet?
Sensors in the USB-C port trigger Samsung’s moisture detection feature. These sensors are highly sensitive to moisture, debris, or faulty contact, and the alert appears when they’re triggered as a safety measure.
However, many Galaxy S25 users report seeing the alert when their phone’s completely dry, suggesting it’s not always water that causes the issue.
2. Clean the Charging Port
Start with the simplest fix:
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Turn off your S25.
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Inspect the port under bright light.
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Use a soft, dry cloth to remove dust or lint.
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For stubborn debris, gently use a toothbrush or tweezers, taking care not to damage connectors.
Reddit users endorse cleaning as a top fix:
“Toothbrush worked instantly … I was on 5 % with a long evening ahead”
“Use contacts cleaner spray with electronics tweezers to pull it out and … let the shorter cables connect properly.”
If debris was the culprit, the alert should disappear once you reconnect the cable.
3. Let It Dry Right
If your phone has been near moisture, resist the urge to use a hair dryer or rice—these can harm the device. Instead:
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Power off the phone.
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Place it port-side down in a well-ventilated area or front of a fan.
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Avoid overheating. Use gentle airflow only.
Samsung explicitly warns against rice, which might trap debris and further damage the moisture sensor.
4. Toggle Fast-Charging Settings
High-voltage fast charging can exaggerate the alert in some cases. Try this workaround:
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Go to Settings → Battery → More battery settings.
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Disable Fast charging and Super fast charging.
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Power the phone off, then plug it into a computer’s USB port (5V, lower current).
This approach often gets the phone charging with a normal yellow triangle icon rather than the moisture alert.
5. Reboot with Charger Attached
This trick rarely fails:
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Power off your phone.
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Plug in the charger.
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Power it on while still plugged in.
You should bypass the moisture warning and allow normal charging. Reddit users confirm this solution works “every time.”
6. Clear USB Cache / Force-Stop Android System
Sometimes, a software glitch, not moisture, is to blame. Try this:
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Go to Settings → Apps → show System apps → locate USBSettings → Storage → Clear cache
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In Settings → Apps, locate Android System and select Force Stop. Then recharge.
A popular Reddit recommendation:
“Go into settings … force stop. Power off device … plug in the charger … memory message gone, can charge again.”
7. Use Safe Mode or Recovery Mode Pre-Charging
These advanced but effective steps bypass the warning services:
A. Safe Mode Charging
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Power off, then power on while holding down the Volume Down button.
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Plug in the charger—no alert should appear in Safe Mode
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Gain 5–10 % battery, then restart normally.
B. Recovery Mode Charge
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With the charger plugged in, boot into recovery mode by pressing Power + Volume Up + Bixby.
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Leave it idle in recovery for ~10 minutes battery should climb to 5–10%.
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Choose Reboot system now.
8. Use Wireless Charging
If the USB-C port refuses to cooperate, and your S25 supports wireless charging, this is a quick workaround. It bypasses the entire port and thus the alert.
9. Professional Help or Hardware Replacement
When all else fails, likely the port or sensor is damaged or corroded:
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If your phone is still under warranty, contact Samsung Support or visit an authorized service center.
10. Extra Tips to Prevent Future Moisture Detected Error on Galaxy S25 Ultra
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Keep the charging port clean and free from debris.
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Avoid exposing the device to humidity.
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Prioritize regular charging to prevent the battery from running out of power completely.
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Swap between fast and standard charging depending on your situation.
Bottom Line
The Moisture Detected error on Galaxy S25 is a protective feature that can cause frustration when falsely triggered. Fortunately, a range of quick fixes, from cleaning and drying methods to smart settings tweaks, can resolve the issue without losing data or requiring the use of charge cables indefinitely. These steps are accessible, cost-effective, and provide peace of mind when you’re ready to get back up and running again.
If you’ve tried everything above and the error persists, seek help from Samsung Support.
