iPhone calendar freezes in IOS 11

When adding an event in calendar, if you try to add a location, the screen locks up and you have to force close the app. I have done a complete reset and download of IOS 11 and still have the problem.

Posted on Sep 29, 2017 6:37 PM

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Posted on Oct 7, 2017 7:34 AM

I had this exact same problem. I have an iPhone 7 Plus with iOS 11.0.2. (I tried everything - worked with Apple Support, Senior Advisors, Genius Bar and nothing worked).


I think I discovered how to fix the issue on my own. At least it worked for me. I noticed that whether I typed a letter or a number as the first character in the location field, it took a long time to populate the choices below (addresses, places, etc.). I thought maybe it had something to do with the Contacts data on my iPhone and that maybe there was an indexing issue. Here are the steps I took which resolved the problem for me:


I suggest being on WiFi for this process:


1. Go to Settings / Accounts & Passwords.

2. Under Accounts, select each Account to see which ones have Contacts turned on.

3. If you use Work (Exchange), this likely the issue. Turn off Contacts. When you see the message “Are you sure you want to continue? All exchange contacts will be removed from your iPhone.” Select “Delete from my iPhone”.

4. You will see a message “Turning off Contacts.” Once that is completed, turn Contacts back on. You will see a message “What would you like to do with existing local contacts on your iPhone?” Select “Keep on my iPhone”.

5. You will see another message “If you keep your current contacts on your iPhone, you may see duplicate entries. Are you sure you want to continue?” Select “Keep on my iPhone”. The reason you want to do this is that you may have created other contacts on your iPhone locally that are not in Exchange, so you don’t want to lose them.

6. Let the iPhone sync your contacts from Exchange. If you have a lot (I have almost 4,000), it will take some time (which is why I suggested being on WiFi). I suggest turning off your Auto-Lock (Settings/Display & Brightness/Auto-Lock/Never, then open the Contacts app (you’ll see the contacts populating) until all contacts are synced.

7. Then try creating a new Calendar item and type a location.

8. If you still see the problem, repeat the process with any other Accounts that have Contacts turned on (see Steps 1&2).


Let us know if this works for you.

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iPhone calendar freezes in IOS 11

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