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How to fix a Galaxy S9 Plus that won’t charge wirelessly after an update

We’re currently monitoring a possibly emerging issue in Samsung Galaxy devices — wireless charging not working after an update. In this troubleshooting article, we show you an example of this issue. We also deal with other related issues so we hope you’ll find this post helpful.

Before we proceed, we want to remind you that if you are looking for solutions to your own #Android issue, you can contact us by using the link provided at the bottom of this page. When describing your issue, please be as detailed as possible so we can easily pinpoint a relevant solution. If you can, kindly include the exact error messages you are getting to give us an idea where to start. If you have already tried some troubleshooting steps before emailing us, make sure to mention them so we can skip them in our answers.

Problem #1: How to fix a Galaxy S9 Plus that won’t charge wirelessly after an update

Ok my S9 Plus gave me a notice of some update for the phone and while on my wifi it started downloading. After the update was I noticed that the my phones quick charge was not activating, I’ve gone to my battery on the settings and checked on the advanced settings and it is turned on but for some reason when I plug my phone to the charger the quick charge notice doesn’t appear on my screen like it normally does. I am not sure what update my phone had. It says Android version 8.0 and Samsung experience version 9.0 any help would be appreciated thanks.

Solution: This issue may be caused by a number of factors. Let’s discuss each of them and the steps that you can do to fix it.

Minor bug

The issue is probably caused by a temporary bug after an update. Android OS is a very sophisticated software environment and there are millions of possible points of failure. Since Google and other developers cannot really anticipate all issues, some of them may develop after an update, when there is a major overhaul of the system. To see if you can easily fix the trouble, consider doing a forced reboot. This will simulate the effects of pulling out the battery, effectively clearing the memory and refreshing the system. A lot of minor bugs are fixed by this simple troubleshooting step so be sure not to skip it. Here’s how it’s done:

  1. Press and hold the Power + Volume Down buttons for approximately 10 seconds or until the device power cycles. Allow several seconds for the Maintenance Boot Mode screen to appear.
  2. From the Maintenance Boot Mode screen, select Normal Boot. You can use the volume buttons to cycle through the available options and the lower left button (below the volume buttons) to select. Wait for up to 90 seconds for the reset to complete.

Corrupted system cache

One of the most common reasons for issues following an update is a corrupted system cache. Android uses a special cache, called system cache, in order to keep temporary files needed to load apps faster. Sometimes, this cache gets corrupted after an update, which can then result to all sorts of problems. To ensure that the phone’s system cache is working properly, you want to clear the cache partition where it’s stored. Here’s how to do that:

  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 cache partition’.
  5. Press Power button to select.
  6. Press the Volume down key until ‘yes’ is highlighted and press the Power button.
  7. When the wipe cache partition is complete, “Reboot system now” is highlighted.
  8. Press the Power key to restart the device.

Incompatible apps

Apps is another reason why there are problems in an Android device. The chance of experiencing app-related issues can further be heightened after a major Android overhaul. Not all apps receive the same level of expertise when made so not everything may be compatible when new Android OS is installed. To see if a third party app is the main reason why your S9 Plus has lost wireless charging capability, you want to boot the phone to safe mode.

In safe mode, all third party apps will be suspended. This means that only preinstalled apps will be allowed to run. If your phone will charge wirelessly only on safe mode, you can bet you have a bad app issue.

  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.
  8. Check if wireless charging works.

Remember, if wireless charging will work only on safe mode, there must be an app causing the trouble. To identify which of your apps is causing the trouble, you should boot the phone back to safe mode and follow these steps:

  1. Boot to safe mode.
  2. Check for the problem.
  3. Once you’ve confirmed that a third party app is to blame, you can start uninstalling apps individually. We suggest that you begin with the most recent ones you added.
  4. After you uninstall an app, restart the phone to normal mode and check for the problem.
  5. If your S9 is still problematic, repeat steps 1-4.

Apps need updates too

Installing the latest Android version does not automatically update the apps. Be sure to update all apps after installing Android update to minimize the chance of incompatibility issues and bugs.

Software bug

Should nothing change after checking the initial lists of possible causes, the problem is possibly due to a software bug. Make sure to factory reset the device so as to minimize the chance of having OS bugs.

To factory reset your S9 Plus, follow these steps:

  1. Create a backup of your personal data.
  2. Turn off the device.
  3. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  4. 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).
  5. Press the Volume down key several times to highlight ‘wipe data / factory reset’.
  6. Press Power button to select.
  7. Press the Volume down key until ‘Yes — delete all user data’ is highlighted.
  8. Press Power button to select and start the master reset.
  9. When the master reset is complete, ‘Reboot system now’ is highlighted.
  10. Press the Power key to restart the device.

Problem #2: Galaxy S9 music plays and stops on its own, Google Voice and S Voice keeps turning on

Hey there. So here’s the issue with my Samsung Galaxy S9: the Google voice command and S Voice constantly keeps popping out of nowhere when my earphones are plugged in. Also, the music starts playing and stops on it’s own and the sound settings (sound, vibrate, mute) changes on their own too. It started a week ago. I didn’t install a software update or anything of the sort. i have no idea why these stuff started happening all of a sudden. Thanks for taking the time to read about my problems, hope you can find a solution soon.

Solution: There’s a chance that a third party app may be to blame. To check if that’s the case, restart your S9 to safe mode and observe it. Refer to the steps above on how to do it.

If you’ve already tried that before contacting us, or if nothing changes when the phone is on safe mode, you can also do a factory reset. This will force the phone to return all software information. If the problem is software in nature, factory reset should help.

If factory reset won’t fix the issues at all, that can mean you have a bad hardware problem. We think it’s a screen issue, probably a bad digitizer. The symptoms you mention are consistent with a broken screen or digitizer. These usually occur after an accidental drop, damaging the screen.To know whether our suspicion is correct, let a professional examine the hardware,

Problem #3: How to fix Galaxy S9 moisture detected error: moisture detected error after getting wet with urine

My phone was in the back pocket of my trousers and I went to the toilet. However I forgot about my phone being in my pocket and when using the toilet, urine accidentally made contact with it. This happened while I was at work. Immediately I dried it with tissue. But it wasn’t until I got home 3-4 hours later that I removed it from the case and saw that there was still moisture on the back of the phone. I dried it again with tissue. This happened on Tuesday 14th August. When I went to charge it I was given a ‘moisture detected’ notification. The next day, Wednesday 15th August, I put my phone on top of my radio so as to dry it with the light heat coming from it. I did this throughout of the whole day. Yet, when I tried to charge my phone, I still received a ‘moisture detected from USB and charger port’. I did not use my phone during the whole of Wednesday, and I am now writing this on Thursday 16th August. I am still unable to charge my phone due to moisture detected. I have put my phone in rice on the hope that it will dry it out, but I am still concerned that this problem had extended to two days. What should I do?

Solution: Your Galaxy S9 is water resistant and should be okay after you get is wet with low-pressure water or liquid. However, Samsung does not recommend exposing your S9 to non-water liquids like urine as residue may not be fully removed from the charging port. There may be some residue still deposited in the charging port. To address the issue, make sure to rinse the charging port properly with clean water. Don’t use high-pressure to do this though. You can pour clean water in the charging port then gently shake the phone to remove any remaining water inside. Then, you can leave the phone in room temperature for several hours to allow water to evaporate naturally.

If moisture detected error continue to persist after drying the phone this way, we suggest that you contact Samsung for repair or replacement.

 


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