Samsung moisture detected warning won’t go away (quick fixes)

Many Samsung phones are equipped with a moisture sensor designed to protect internal components from water damage. When the sensor detects water or moisture, the device shows a warning message: “We’ve detected moisture or foreign material in your charging/USB port.” The warning could also show up when there’s high humidity or an accumulation of dust, dirt, or debris in the USB port.

While it’s a handy feature that could potentially save you from hefty repairs, sometimes the device keeps showing the warning even when it is completely dry. And once it appears, it can be frustratingly persistent. Luckily, there are effective ways to fix this moisture detected warning on Samsung phones that I’ll share with you in this guide.

Some basic checks to get started:

If you see the moisture detected warning, there might actually be moisture or foreign particles inside the USB port that are not visible from the outside. To ensure they are not triggering the problem, gently clean the USB port.

To remove any possible moisture, wipe the device using a dry cloth and then gently shake it 5-10 times with the port facing downwards to remove any excess moisture. Now, place the device in a well-ventilated area for 30 minutes before connecting the charger. You can use a table fan to make the process quicker. You can also use a thinned wooden toothpick or soft-bristled toothbrush to gently brush out dust or debris.

Don’t forget to clean the charging cable, as dust or water droplets may be resting inside the connector. If the issue persists, try using a different cable to ensure the previous one isn’t causing the problem.

Now, connect the charger. If the warning message isn’t gone, try these advanced solutions.

7 Ways to fix moisture detected warning in Samsung phones

Fix 1: Clear the USB cache

If cleaning out moisture and debris doesn’t work, the warning may be caused by a software glitch or system error. Clearing the USB cache might help as it’ll reset the USB system app, which sometimes gets stuck or misreads the port’s condition due to a bug. Remove the USB cable if it’s plugged in already.

Here’s how to clear the USB cache:

Step 1: Go to Settings and tap Apps.

Step 2: Tap the filter icon and enable Show system apps.

Step 3: Look for USBSettings and tap on it.

Step 4: Tap Storage and then Clear cache.

Fix 2: Turn off fast charging

I know this doesn’t make a lot of sense, but many Samsung users got the warning removed by disabling the fast charging feature. It’s better to give this a try rather than waiting endlessly for the warning to disappear.

The reason could be that fast charging uses higher voltages and currents, which increases the risk of short circuits if even a small amount of moisture is present. Turning off fast charging might allow the phone to charge at a lower rate, sometimes bypassing the warning.

Steps to turn off fast charging:

Step 1: Go to Settings > Device care and tap Battery.

Step 2: Tap Charging settings.

Step 3: Toggle off Fast charging.

Restart your device and connect the charger to see if the issue is resolved. Some users have reported that the device was charging even though the warning was still there.

Fix 3: Force restart your phone

Restarting the device resolves software glitches, which can remove the moisture detected warning from your Samsung phone. First, do a simple restart. If it doesn’t work, try the forced restart method.

For a simple restart, press and hold both the side and volume down buttons until you see power options. Tap Restart.

For a forced restart, plug in the charger and then press and hold the power and volume down buttons until the Samsung logo appears. Release the buttons and wait for the device to reboot.

Fix 4: Charge your phone using a computer

Multiple Samsung users on Reddit and other forums resolved the warning by connecting the device to a computer. I’m not sure about the logic behind this solution, but since it has worked for many users, I’m sharing it here.

Fix 5: Restart your phone in Safe Mode

It’s a great way to check if any third-party apps are causing the problem on your phone. In Safe Mode, those apps are disabled. If the problem is gone in Safe Mode, it means a third-party app is triggering the issue.

Here’s how to enable Safe Mode:

Step 1: Press and hold the power button and volume down button together until you see the power options.

Step 2: Tap and hold the Power off icon until you see Safe Mode.

Step 3: Tap the Safe Mode icon to boot your phone into the Safe Mode.

Now, connect the charger and see if the warning appears.

Fix 6: Perform a factory reset

If you have tried all the above solutions but to no avail, perform a factory reset for a complete software cleanup. This should resolve all software bugs and other software-related issues.

[Disclaimer: A factory reset removes all the data from your device, including photos, videos, documents, and installed apps. Hence, back up your data beforehand to avoid any data loss.]

[Disclaimer: Factory reset removes all the data from your device, including photos, videos, documents, and installed apps. Hence, back up your data beforehand to avoid any data loss.]

Step 1: Open Settings and select General management.

Step 2: Click Reset.

Step 3: Choose Factory data reset.

Step 4: Click the Reset button at the bottom.

Step 5: Confirm your lock screen password/PIN/pattern and click Delete all.

The moisture detected warning should have been resolved. 

Fix 7: Use a wireless charger instead

If everything else fails, you can use a wireless charger to refill the battery (if your device supports it) or visit the Samsung service center to fix your device.

FAQs:

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