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How to revert Calendar changes in iOS 27.0.1 on iPhone 15 Pro?

I have an iPhone 15 pro, I don’t like the changes to the calendar, can i change back



[Re-Titled by Moderator]

Original Title: Calender ios27.0.1 changes

iPhone 15 Pro, iOS 27

Posted on Oct 21, 2026 5:18 PM

12 replies

Oct 21, 2026 6:03 PM in response to gracar54

What do you use in Settings > Appearance > Light or Dark mode?

Try using Dark mode. Open Calendar and see the result. Did it help?


Another option: Open Calendar app, tap the Calendar icon (bottom right next to the open envelope icon

Now you can change the colour of all the calendar accounts you have by tapping the (i) in Red on the right.

Do note how many calendar accounts you have and its colour used before you make changes.

Nov 10, 2026 9:49 AM in response to gracar54

Version 27.2.1

I tried reverting back to the old calendar, using list and also using details and I am not able to press edit and put in any information like address or telephone numbers or notes.

I have been an Apple user since the iPhone first came out. The last couple versions that have been downloaded have been unfavorable to me. It turned an easy task into either a difficult task or a great option that is no longer available.

Why can’t I edit all the fields in my contact?


How to revert Calendar changes in iOS 27.0.1 on iPhone 15 Pro?

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