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enery4
User level: Level 1 (6 points)

Calendar events disappeared after iOS 27.0.1 update

I updated my iPhone 14 Pro to iOS 27.0.1 two days ago, and the morning after the update, my calendar events were still there, but last night I went to check the time of an appointment for today and saw that all of my events were gone. This is extremely frustrating, especially because I ended up missing the appointment this morning due to this. I have tried toggling the "Use on this iPhone" on and off multiple times with no results. I've changed Sync from All Events, to Events 6 Months Back, back to All Events, and nothing. I even went online to iCloud restore, and it says the oldest archive was last night at 07:59 pm and it's compeltely blank. I know I was using iCloud calendar because it always gave me the option for "work, home, and calendar".


I have read of some people losing their calendar events when they were low on storage, and I will say that prior to the update, my phone kept telling me I had no storage available. I did clear storage, and noticed that after the update more space became available, but as previously stated, this calendar issue happened a whole 24-36 hrs after the update. I am even trying to clear storage now in hopes that my events will reappear. If anyone has any other tips or advice please let me know!



Posted on Oct 23, 2026 8:23 AM

13 replies

aritomasel
User level: Level 1 (8 points)

Nov 7, 2026 3:55 AM in response to JayVachhani15_cool

If this were the problem, what would be the most suitable solution?


aritomasel
User level: Level 1 (8 points)

Nov 10, 2026 10:43 AM in response to kimbo18

Hi, we have solved by reset all settings from > general settings > transfer or reset iPhone > reset > reset all settings

aritomasel
User level: Level 1 (8 points)

Nov 7, 2026 5:26 AM in response to enery4

SOLVED: by “reset all settings” we have solved the issue

SunshineDays_20
User level: Level 1 (14 points)

Oct 24, 2026 3:00 AM in response to enery4

My calendar events have gone too, and I’d recently spent a good hour creating coloured calendars for my girls and their events, visitors and appointments etc. Very disappointed!!

I’ve also lost lots of contacts, and it had wiped my alarms initially although they have reappeared since.

JayVachhani15_cool
User level: Level 1 (62 points)

Oct 25, 2026 10:19 PM in response to enery4

I know why that happened. Because your phone had low storage so your phone's storage doesn't get full so some events got deleted to keep some storage empty as software update would take some storage space.

aritomasel
User level: Level 1 (8 points)

Nov 7, 2026 3:54 AM in response to enery4

The same thing happened to my partner. All the calendars disappeared from the iPhone 16 Pro after updating to iOS 27.2


Calendars are present on iCloud and on other devices (which is now keeping offline so they don't sync)


But on the calendar app the iCloud calendar has disappeared and there is no way to add it again

kimbo18
User level: Level 1 (8 points)

Nov 10, 2026 9:14 AM in response to enery4

this happened to me too - updated the software last night and this morning my calendar entries have gone. Only the subscribed events and recurring ones have remained. So frustrating have spent most of the day trouble shooting and getting nowhere. Has anyone found a solution?

WoahWella
User level: Level 1 (12 points)

Nov 10, 2026 1:07 PM in response to enery4

FRUSTRATED!!!

I have doctors appointments this week and they are all missing from my calendar along with upcoming important meetings/birthdays! What is going on and anybody know how to retrieve a calendar prior to a software update??

I have not linked my calendar to iCloud in a long time. PLEASE HELP!!

SunshineDays_20
User level: Level 1 (14 points)

Nov 10, 2026 1:20 PM in response to aritomasel

Could you please confirm, has this out your phone back to factory settings where all apps/passwords/preferences etc need to be re-entered again? And have your old calendar events now reappeared?

I’d be up for resetting if I know it doesn’t make it a right pain to get my phone back to how it is right now!

Thanks!

despo176
User level: Level 1 (8 points)

Oct 25, 2026 10:10 PM in response to enery4

The same it happened to me. Did you find any solution?

Frustrated_upated_247
User level: Level 1 (8 points)

Oct 26, 2026 6:00 AM in response to JayVachhani15_cool

how do you fix it?

Jazstone
User level: Level 1 (8 points)

Nov 7, 2026 8:02 PM in response to enery4

Mine did this too, updated last night and now no calendar events! All gone!

WoahWella
User level: Level 1 (12 points)

Nov 10, 2026 1:08 PM in response to Jazstone

Hey! Did u figure out a solution?? This is so frustrating.

Originally posted at discussions.apple.com/thread/256381555