How to fix Galaxy Note 9 that keeps freezing after Android 9 update

When a high-end smartphone like the Samsung Galaxy Note 9 keeps freezing or lagging, the problem can be with the firmware, especially if it started after the recent Android 9 update. Even if you have a powerful device, you can always expect it to experience some performance issues over time. But the thing is that most of the time, issues like this aren’t really that hard to fix. 

In fact, you may be able to make your Galaxy Note 9 work perfectly again just by doing one or a couple of procedures. So, in this post, I will guide you in troubleshooting your phone that keeps freezing or lagging. We will try to rule out each possibility until it becomes clearer to us what the cause of the problem is. That way, we can formulate a solution that will fix the issue for good. 

Before we move on to our troubleshooting, if you happen to find this post while looking for a solution to a different problem, then visit our Note 9 Help Guides page for we have already addressed some of the most common issues with this device. We may have already published articles that could help you fix your problem. Find issues that are similar to yours and feel free to use our solutions.

Fixing Galaxy Note 9 that keeps freezing

When an issue like this occurs, most of the time, you will notice that your phone will start to have a noticeably slow performance. Then, lags occur every now and then, followed by a few instances of freezes. Depending on your usage habit, your phone may start to keep on freezing frequently after just a few days. But there are also times when freezes occur without warning. Now, with all of that being said, here are the things you need to do if your Note 9 keeps freezing…

First solution: Force restart your phone

If the phone freezes and won’t respond when you press and hold the power key, then you must perform the forced reboot to make the device respond again. Press and hold the Volume Down button and Power key at the same time for 10 seconds or more. Your Galaxy Note 9 will reboot like it normally does so now, you can continue troubleshooting so as to prevent from freezes. 

Just in case your phone doesn’t respond to the forced reboot procedure, try this instead: 

  1. Press and hold the Volume Down button and don’t let go. 
  2. Press and hold the Power key while holding down the volume button.
  3. Now, keep both keys held down together for 10 seconds or more. 

This is actually the same as the first procedure but we’re making sure that you’re doing it right.

Second solution: Use your phone in Safe Mode

This is not a solution to the phone that keeps freezing but it’s a very important procedure to know if the problem is caused by some third-party apps or not. While your Galaxy Note 9 is in this mode, all third-party applications are disabled but you may continue using it as all pre-installed apps are still working. Here’s how to restart 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.

While in this mode and the phone works perfectly without those freezes, then it means that the cause of the problem is a third-party app. This is what you have to do next…

  1. Restart your phone normal to boot into standard mode. 
  2. Remember the apps you installed about the time when the phone starts to keep freezing. 
  3. Once you already have an app in mind, swipe down from the top of the screen to pull the notification panel down. 
  4. Tap the Settings icon on the upper-right corner. 
  5. Scroll to and then tap Apps. 
  6. Find and tap suspected app. 
  7. Tap Storage. 
  8. Touch Clear data and tap OK to confirm.
  9. Tap the back key once and then touch Uninstall. 
  10. Confirm that you want to remove the app from your phone. 

However, if your phone still keeps freezing even in safe mode, then move on to the next solution. 

Fourth solution: Reset settings of your phone

We are now trying to troubleshoot the firmware of your device but the first thing we need to do before that is to bring it back to its factory settings without deleting third-party apps and files. Let’s just bring the settings back to default values just to rule out the possibility that the problem is due to some incorrect settings. Here’s how it’s done on your Galaxy Note 9:

  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.

After this and your phone still keeps freezing, move on to the next step.

Fifth solution: Delete the system cache

It is important that you do this because you’re not just deleting the system cache but also replacing it with a new one. The system cache is a group of temporary files that the system creates to make your phone work smoothly but there are times when they get corrupted. When that happens, a lot of performance-related issues may occur including a phone that keeps freezing. So, delete it so that the system will create a new one.

  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 Galaxy Note 9 logo shows, release all three keys.
  4. Your Galaxy Note 9 will continue to boot up into the Recovery Mode. Once you see a black screen with blue and yellow texts, proceed to the next step. 
  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.

It will take a little longer than usual for your phone to boot up after this as it rebuilds the cache but once the phone becomes active, continue your observation and use the phone normally to see if the freezes disappeared. 

Sixth solution: Backup your files and reset your phone

If all else fails, you have no other choice but to reset your phone. A smartphone that keeps freezing is often fixed by doing the first 5 procedures or solutions but just in case the problem continues for some reason, then you have to do this. But before that, make sure to backup your important files and data as they will be deleted. After which, remove your Google account so that you won’t be locked out of your device after the reset. 

Follow these steps to fix your Samsung Galaxy Note 9 that keeps freezing…

  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 Galaxy Note 9 logo shows, release all three keys.
  4. Your Galaxy Note 9 will continue to boot up into the Recovery Mode. Once you see a black screen with blue and yellow texts, proceed to the next step. 
  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’ 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 the freezing issue with your device. 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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