How To Fix “Unfortunately, your Calendar Storage Has Stopped” On Galaxy S9 And Galaxy S9 Plus

If you get this “Unfortunately, your Calendar storage has stopped” on Samsung Galaxy S9 or Galaxy S9 Plus, you might be lucky, even though you don’t see it that way. Most likely, you’re dealing with some software issue and software is easier to tackle than hardware – at least if you’re planning on going on your own.

Now, assuming you’re not a big fan of the Calendar app, you could be tempted to ignore it. Nevertheless, you’ll soon enough discover that this message is actually blocking your screen. Since you can’t ignore it, you’ll have to try your best and fix it. If you don’t know how, start from here:


Boot Into Recovery Mode To Wipe The Cache Partition Of The Galaxy S9 Or Galaxy S9 Plus

  1. To get to the Recovery Mode, you will first have to turn off the device;
  2. Next, you should tap and hold the following three buttons: Home, Volume Up, and Power;
  3. Only release the Power button when the Samsung logo turns up on the screen;
  4. Continue holding the two other buttons when you see the Android logo;
  5. After you have entered the Recovery Mode, don’t do anything for the first 30 to 60 seconds;
  6. Then you can start navigating around with the Volume Down button;
  7. When you highlight an option, you can start it with one more press on the Power button;
  8. Use these buttons to get to the Wipe Data / Factory Reset option;
  9. Confirm with the option “Yes – Delete All User Data”;
  10. Wait for this process to complete;
  11. Use the Reboot System Now option;
  12. Wait for the phone to exit the Recovery Mode and return to the normal running mode.


Wiping the cache may or may not help you get rid of the Samsung Galaxy S9 and Galaxy S9 Plus “Unfortunately, your Calendar storage has stopped” error that keeps displaying. In the event that you weren’t very lucky, you’re about to face a tough decision.

Like with many other problems of the Samsung Galaxy S9 or Galaxy S9 Plus, the last thing you can try is to hard reset the phone. The hard reset will, as you can expect, wipe all your phone’s content. When you turn it back on, you’ll have to configure it from scratch and, if you have a backup at hand, to reactivate it and bring back your most important data.

More on how to do that backup before you jump to the actual reset is detailed with clear steps in here. Read our tutorial, make your phone usable shortly after that, and start testing. Is the “Unfortunately, your Calendar storage has stopped” on Samsung Galaxy S9 and Galaxy S9 Plus still showing up? Maybe you’ll want to address the problem to an authorized technician after all…

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