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calendar crashes

Fix Samsung Galaxy S9 Plus with “Unfortunately, Calendar has stopped” error (easy steps)

The error message “Unfortunately, Calendar has stopped” on your Samsung Galaxy S9 Plus means that the default calendar application has crashed. The cause of the crash maybe a minor issue with the app itself or it could be just a symptom of a more serious firmware problem. The error message may show up when you open the calendar app or any app that uses the app. Other owners reported that calendar crashes whenever they enter a new entry but regardless how the error shows up, the problem remains the same and you have to do something about it.

In this post, I will walk you through in troubleshooting your Galaxy S9 Plus that’s plagued by this error message. I will share with you the solution I’ve been using to address this kind of problem. This isn’t the first time I encountered this error so I already know what works and what not. If you’re one of the owners of this device and are currently bugged by a similar issue, continue reading as this article may be able to help you one way or another.

But before anything else, if you have another issue with your phone, drop by our troubleshooting page as we have already addressed hundreds of issues reported by the owners. Odds are that there are already existing solutions on our website or at least, there are similar problems we already fixed. So, try to find ones that are similar or related to your problem. If you need further assistance, however, feel free to contact us by filling up our Android issues questionnaire.

How to deal with “Calendar has stopped” error on Galaxy S9 Plus

Generally, this problem is pretty minor and most of the time it’s an issue with the calendar itself. But as I said earlier, there’s a possibility that it’s just a symptom of a more serious firmware issues considering the fact that it’s a pre-installed application. You would know if it’s a minor or a serious problem depending on how your phone reacts to the following procedures…

Reboot your phone – before doing anything complicated, make sure you take a little time rebooting your phone especially if it’s the first time that you encountered this issue because it could be just a result of a glitch in the system. Glitches happen all the time and some applications may be affected by them but don’t worry, those glitches can actually be fixed by a reboot. Or better yet, try doing the forced restart by pressing and holding together the volume down and power keys for 10 seconds or more. After which, try to open the calendar app to see if the error still shows up and if it still does, then try the next step.

Run phone in safe mode – contrary to what others think that running the phone in safe mode would fix the problem, well it won’t. The purpose of this procedure is for us to know if the problem is caused by a third-party app or not. In safe mode, all third-party apps are temporarily disabled so if one of them is causing the issue, then you wouldn’t see the error when the phone is in that environment. In such case, the next thing you should do is find out which app causes the problem and uninstall it. However, if the error is still popping up while the phone is in safe mode, then the problem could be with the firmware.

Wipe cache partition – if the error started showing up after an update, it’s possible that some of the system caches got corrupted. While they’re small files, they will cause performance issues when they get corrupted or become obsolete. You cannot deleted a system cache individually but you can erased them all at once. You have to run your phone in recovery mode and wipe the cache partition from there. After which, the system will replace deleted caches with new ones. If the problem still occurs after this, then you have to do the next procedure.

Perform the master reset – this is the ultimate solution to any persistent app issues. After doing the previous procedures and the problem still keeps on happening, then backup all your files and data or those that you don’t want to lose and then reset your phone to bring it back to its factory settings. If you don’t know your google ID and password, it’s better to remove it from your phone prior to the reset so that you won’t be locked out.

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Please refer to the following instructions to perform the procedures I suggest above.

How to run 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.

How to uninstall applications

  1. From the Home screen, swipe up on an empty spot to open the Apps tray.
  2. Tap Settings > Apps.
  3. Tap the desired application in the default list.
  4. To display preinstalled apps, tap Menu > Show system apps.
  5. Tap UNINSTALL > OK.

How to wipe cache partition

  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.

How to perform the Master Reset

  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.

I hope that this troubleshooting guide have helped you one way or another. If you have other concerns you want to share with us, feel free to contact us or leave a comment below.

Connect with us

We are always open to your problems, questions and suggestions, so feel free to contact us by filling up this form. This is a free service we offer and we won’t charge you a penny for it. But please note that we receive hundreds of emails every day and it’s impossible for us to respond to every single one of them. But rest assured we read every message we receive. For those whom we’ve helped, please spread the word by sharing our posts to your friends or by simply liking our Facebook and Google+ page or follow us on Twitter.

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How to fix Samsung Galaxy S9 with “Unfortunately, Calendar has stopped” error (easy fix)

The error message “Unfortunately, Calendar has stopped” is a notification that the default calendar app in your Samsung Galaxy S9 has crashed for some reason. It could just a minor app issue or a serious firmware problem since Calendar is one of the core applications that come with every Android device.

In this post, I will walk you through in troubleshooting your Galaxy S9 with Calendar that keeps crashing. We will try to look into every possibility and rule them out one by one until we can determine why this issue happens and formulate a solution that may fix it for good. So, if you’re one of the owners of this device and are currently bugged by a similar issue, continue reading as this post may help you one way or another.

For those 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 issues with this phone. Browse through the page to find issues that are similar with yours and use the solutions we suggested. If they don’t work for you or if you still need our help, contact us anytime through our Android issues questionnaire.

How to fix Galaxy S9 with “Calendar has stopped” error


We have encountered this problem several times in the past and more often than not we resolve those issues. It’s not really a serious problem but you may lose some of your calendar entries especially if your haven’t synced your phone with your Google account prior to this problem. Anyhow, here’s what you have to do about it:

First solution: Reboot your phone

A reboot should be the first thing you should do to try to fix this problem because it might be just a result of a minor glitch in the app or the firmware. So, hit the power key and restart your device and after which, open Email to know if the error still shows up or if it still crashes. If it still does, I suggest you try doing the Forced Restart:

  • Press and hold the volume down and power keys simultaneously for 10 seconds or until the phone reboots.

This procedure will simulate battery disconnect and refresh your phone’s memory by closing all apps, services and core functions. It’s still very effective in addressing issues that might have been caused by some glitches. However, if the app still crashes after this, then move on to the next step.

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Second solution: Reset Calendar

A reset means to clear the cache and data of the app you’re having problems with. If this is just an app issue, then the problem should be fixed by doing this procedure. This will delete the apps cache and data as well as some of the entries you might have not synced.

  1. From a Home screen, touch and swipe up or down to display all apps.
  2. From a Home screen, navigate: Settings > Apps.
  3. Tap App Manager.
  4. Locate then tap Calendar.
  5. Tap Storage.
  6. Tap CLEAR CACHE.
  7. Tap Cached data.
  8. Tap CLEAR.

This is the most effective solution to almost all app-related problems but then there’s no guarantee that it will work with all cases. So, in case the problem continues after this, then the next method will definitely fix the problem.

Third solution: Run phone in safe mode

This will tell you is the problem or the error is triggered by a third-party app or not. If the issue doesn’t occur in safe mode, then the next thing you should do is find out which app causes it and uninstall it.

  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.

Assuming that the problem is fixed in this environment, the next thing you should do is find out which of your apps is the culprit and once you suspect an app, uninstall it. Here’s how you do that:

  1. From the Home screen, swipe up on an empty spot to open the Apps tray.
  2. Tap Settings > Apps.
  3. Tap the desired application in the default list.
  4. To display preinstalled apps, tap Menu > Show system apps.
  5. Tap UNINSTALL > OK.

Determining what app is causing the problem is often a challenge to many users. So, you must uninstall apps that you recently installed first or those that you installed prior to the problem. If the problem continues after this or if the error continues to show up in safe mode, then try the next procedure.

Fourth solution: Wipe cache partition

This will rule out the possibility that this problem is due to corrupt system caches. Doing this will delete all the caches created by the system and replace them with new ones. It’s as effective as the reset but none of your files and data will be deleted, so it’s worth it. Here’s how you do it:

  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.

If the error continues after this, then it’s time to reset your device.

Fifth solution: Master Reset

Before the reset however, make sure you backup all your files and data as they will be deleted during the process and you may not be able to retrieve them after that. After the backup, make sure you disable the Factory Reset Protection by removing your google account from your phone so that you won’t be locked out. Once everything is set, follow these steps to reset your phone:

  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.

I hope that the problem with your device is fixed after this. If you have other concerns you want to share with us, feel free to contact us or leave a comment below.

Connect with us

We are always open to your problems, questions and suggestions, so feel free to contact us by filling up this form. This is a free service we offer and we won’t charge you a penny for it. But please note that we receive hundreds of emails every day and it’s impossible for us to respond to every single one of them. But rest assured we read every message we receive. For those whom we’ve helped, please spread the word by sharing our posts to your friends or by simply liking our Facebook and Google+ page or follow us on Twitter.

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