How to fix Samsung Galaxy S10 Plus that’s running slow

When it seems like your Samsung Galaxy S10 Plus running slow, the problem could be a very minor one especially that the phone is pretty new and it’s the most powerful smartphone available in the market today. However, problems happen every now and then and it could be due to some applications or games you’ve downloaded, or some services may have stopped working for some unknown reason.

Performance issues are pretty common but they’re actually also very easy to fix as long as they’re not caused by some hardware or liquid damage. In this post, I will walk you through in troubleshooting your new Galaxy S10 Plus that started to run very slow or became sluggish. So, if you’re one of the owners of this phone and are currently experiencing similar symptoms, continue reading as this post may be able to help you.


For owners who are looking for a solution to a different problem, drop by our troubleshooting page for we have already addressed some of the most common problems with this device. Browse through the page to find issues that are similar with yours and use the solutions we suggested. If they don’t work or if you need further assistance don’t hesitate to contact us by filling up our Android issues questionnaire.

Galaxy S10 Plus running slow solution

We need to rule out one possibility after another to be able to determine why a powerful phone like the Galaxy S10 Plus became sluggish all of the sudden. Here are the things you need to do to try and fix this issue…

First solution: Run phone in Safe Mode and observe

Okay, this isn’t a solution but a very important procedure you should do in order to know if the sluggishness you’re experiencing is due to some third-party apps. While the phone is in this mode, all third-party apps are temporarily disabled. So, if one of those apps is the culprit, your phone should work properly while in this mode. And if such is the case, the problem is pretty easy to fix; you just have to find out which of your apps is causing the problem and then reset it or uninstall it.

Resetting and/or uninstalling an app is easy to do. The most challenging part is knowing which of the app is actually making your phone run so slow. But at least, there’s a big chance you can fix this problem without doing any more complicated troubleshooting procedures. Here’s how to reboot your phone in safe mode:

  1. Turn the device off.
  2. Press and hold the Power key past the model name screen appearing on the 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. When Safe mode appears in the bottom left corner of the screen, release the Volume down key.

On the other hand, if your phone is still running slow even in this mode, then the problem could be with the firmware. Move on to the next step.

ALSO READ: Samsung Galaxy S10 Plus keeps showing ‘Facebook has stopped’ error

Second solution: Reset All Settings

It is imperative that you do this procedures because it’s also possible that the cause of the problem are some incorrect settings. Doing this will be like a factory reset to your phone only that none of your files and data will be deleted. It is very effective in fixing problems that occurred after some settings were changed. Any phone customizations will be discarded but personal data and settings of downloaded apps will not be affected.

  1. From the Home screen, swipe up on an empty spot to open the Apps tray.
  2. Tap Settings > General Management > Reset > Reset settings.
  3. Tap RESET SETTINGS.
  4. If you have set up a PIN, enter it.
  5. Tap RESET SETTINGS.
  6. The device will restart to perform the reset of settings.

Once the phone has become active after the restart, try to test if the sluggishness disappeared. Naturally, your phone should work better after this procedure but if the problem still remains and your phone is still running slow, then you have to move on to the next procedure.

Third solution: Delete the system cache

First off, you will not just be deleting the system cache, you will have it replaced with a new one. The system will create a cache that it can use the next time it boots up. Caches are very important as they make your phone run smoother and faster but when they get corrupted, performance issues like this may also occur. It is therefore, recommended that you delete the cache from time to time so that it will be replaced with a new one. Here’s how you 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 Android logo displays, release all three keys.
  4. An ‘Installing system update’ message will show for 30 – 60 seconds before the Android system recovery menu options appear.
  5. Press the Volume down key several times to highlight wipe cache partition.
  6. Press Power key to select.
  7. Press the Volume down key to highlight yes, them and press the Power key to select.
  8. When the wipe cache partition is complete, Reboot system now is highlighted.
  9. Press the Power key to restart the device.

Wait for your phone to boot up as it will take a little time rebuilding the cache. Once it becomes active, test your phone if it’s still running slow. If it still does, then a reset is necessary.

ALSO READ: Samsung Galaxy S10 Plus screen flickering. Here’s what you need to do…

Fourth solution: Backup files and data and reset your phone

A Galaxy S10 Plus running slow could be due to an issue with the system or firmware. Since all other procedures failed to fix the problem, the next thing you should do is reset your phone. I understand that it may take forever to open Settings and navigate to the reset menu that’s why you have to reset the phone through the recovery mode. However, before you actually reset it, make sure to create a backup of your important files and data as they will be deleted. You may connect the phone to the computer and just drag and drop files you don’t want to lose if it’s excruciatingly slow in copying files to your SD card.

After the backup, remove your Google account from your phone so that you won’t be locked out of your device after the reset. Once everything is ready, follow these steps to do the master reset:

  1. Back up data on the internal memory. If you have signed into a Samsung account on the device, you have activated Anti-theft and will need your Samsung credentials to finish the master reset.
  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.

I hope that we’ve been able to help you fix your Samsung Galaxy S10 Plus that’s running slow. We would appreciate it if you helped us spread the word so please share this post if you found it helpful. Thank you so much for reading!

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