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How to fix your Samsung Galaxy Note8 that keeps showing “moisture detected” warning [Troubleshooting Guide]

Your Samsung Galaxy Note8 has the IP68 rating, which makes it dust and water resistant but that’s pretty much what this rating can offer “resistance.” It’s not waterproof so liquid can still find its way into your phone and guess what, the main entry point is the USB or charger port.

When water enters your Note8’s charger port, the warning message “Moisture has been detected…” will show up and your phone would no longer charge. Depending on how much moisture entered the phone, it might even lead to liquid damage which will make sure you phone become the most expensive paperweight.

In this post, I will guide you in troubleshooting your new Note8 that’s plagued by this error message. We will also look into a possibility that the warning message is caused by a glitch as we’ve seen cases with the Galaxy S8 wherein the warning is triggered by other elements instead of water in the charger port. So, if you own a Galaxy Note8 and are bugged by this problem, then continue reading below as this post may help you.

Before we proceed, if you are looking for a solution to a problem with your Note8, make sure to drop by our Galaxy Note8 troubleshooting page for we have already addressed some of the most common issues reported by our readers about this new device. Find issues that are similar with yours and use the solutions we suggested. If they don’t work or if you need more help, then fill up our Android issues questionnaire and hit submit to contact us.

How to troubleshoot Galaxy Note8 with “moisture detected” warning

First off, the warning message usually pops up when there’s really some moist in the charging port so this should be our priority; to get rid of the moist and make sure there’s no liquid damage before we continue with our troubleshooting. Then, we’ll try to go to other possibilities and rule them out one by one until we can fix the problem and make your phone charge again.

Step 1: Clean the USB / Charging port

Before anything else, turn your phone off to make sure there won’t be any complications. Then proceed with the cleaning of the charging port. Here’s how you do that:

  1. Get a small piece of tissue paper and then insert it into the port. Leave the tissue for a minute or two make sure it absorbs moist if there’s any. You may have to do it a couple of times just to make sure.
  2. Blow into the port to get rid of dirt and other elements that might be blocking the connectors from making proper contact. If you have a can of compressed air, then give it a blast.
  3. Look into the port to check if the pins are in their proper places and not bent. If there’s a pin that’s bent, then try to straighten it out using a pair of tweezers but be gentle so as not to damage it even more.

Step 2: Perform a visual inspection on the cable and charger

We have also seen cases wherein the warning shows up due to wet cable and charger. If one of them has moist, it may have the same result as when the moist is in the charging port of your phone. So, look into the port in the power adapter to see if it’s wet or has some sign of liquid contact. You may also have to try to clean the port with the tissue. It’s a lot easier to clean the port of the charger as it’s bigger than the one in your phone.

As to the cable, you just have to inspect both ends for signs of moist or other debris. You can use a small brush dipped in alcohol to clean them but make sure to dry them out before using it with your phone. Don’t worry though, it would only take a few seconds for alcohol to dry out so you don’t have to wait long for this.

Step 3: Make sure your phone isn’t suffering from liquid damage

Before we proceed with our troubleshooting, we will have to verify if the moist reached some of the components inside your phone. In other words, we have to make sure this isn’t due to a liquid damage. For this, all we need to do is check the Liquid Damage Indicator…

  1. Remove the SIM card tray.
  2. Look into the SIM slot to find a small sticker.
  3. If the sticker is white, then your phone is safe from liquid damage but if the sticker became red, pink or purple, then it positive that your device has liquid damage. In this case, bring the phone back to the store.

Step 4: Try to bypass the ‘moisture detected’ warning

You only have to do this if you’ve already made sure the charger port is clean and dry and that your phone isn’t suffering from liquid damage. We can sort of bypass the warning and allow your phone to fully-charge by doing this…

  1. Plug the charger to a functioning wall outlet.
  2. Connect the other end of the cable to the charger and the other to your phone.
  3. The warning will pop up as soon as the phone is connected to the charger and the charging process stopped.
  4. This time, reboot your phone while it’s connected to the charger.
  5. Your phone may continue charging without being greeted by the warning after the reboot.

If this doesn’t work, however, then move on to the next step.

Step 5: Try charging your Note8 in Safe mode

It turns out the service that handles the warning isn’t running when the phone is in safe mode so you can actually continue charging while in this environment. However, you just have to make sure first that there’s no liquid damage in your phone:

  1. Turn the device off.
  2. Press and hold the Power key past the model name screen.
  3. When “SAMSUNG” appears on the screen, release the Power key.
  4. Immediately after releasing the Power key, press and hold the Volume down key.
  5. Continue to hold the Volume down key until the device finishes restarting.
  6. Safe mode will display in the bottom left corner of the screen.
  7. Release the Volume down key when you see Safe Mode.

Let your phone fully charge while in this mode and then backup your files and data just in case. After charging, reboot your phone in normal mode and then plug the charger in to see if the error still shows up. If it does, I suggest you do the master reset to see if that helps.

Step 6: Reset your phone to see if the warning goes away

This is the reason why I made you backup your data in the step 5. We have to know if the error would still show up after the reset because if it does, then you really have to bring the phone back to the store and have it replaced. Before you reset your phone, however, make sure you disable the Factory Reset Protection:

  1. From the Home screen, swipe up on an empty spot to open the Apps tray.
  2. Tap Settings > Cloud and accounts.
  3. Tap Accounts.
  4. Tap Google.
  5. Tap on your Google ID email address if multiple accounts are setup. If you have multiple accounts setup, you will need to repeat these steps for each account.
  6. Tap 3 dot icon.
  7. Tap Remove account.
  8. Tap REMOVE ACCOUNT.

Now follow these steps to reset your device…

  1. Turn off the device.
  2. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  3. When the green Android logo displays, release all keys (‘Installing system update’ will show for about 30 – 60 seconds before showing the Android system recovery menu options).
  4. Press the Volume down key several times to highlight “wipe data / factory reset.
  5. Press Power button to select.
  6. Press the Volume down key until ‘Yes — delete all user data’ is highlighted.
  7. Press Power button to select and start the master reset.
  8. When the master reset is complete, “Reboot system now” is highlighted.
  9. Press the Power key to restart the device.

Again, after this and the warning continues to show up, bring your phone back to the store and have it replaced. At least, you’ve already cleared off your personal information. I hope this troubleshooting guide helps. If you need further assistance, don’t hesitate to contact us and we’ll be more than willing to help.

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3 Comments

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  1. Thanks for the advice Harold. I have also found that even after making sure the charging port is dry, following step 1 and ensuring the liquid damage indicator has not changed colour; if the pen and its receptacle have any moisture in/on them, this will also bring up the moisture detected alert. Drying them in the same manner as described for the charging port enabled the phone to charge.

  2. Didn’t read this page and left because the ads are playing music on a loop and I can’t figure out which one and how to mute it.

  3. Hi I tried to power off without charging and power back on then the notification are gone. From then I plug the charger and charge the phone as fast mode. Once the battery full and unlpuged the phone about 10 minutes later the messages will pop up again. Tried to by pass and it did charge in slow mode then after the battery fulled same messages pop up again. Tried in safe mode also same problems . Please any help would be nice

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