Cannot Add Event to Calendar on iPhone? How to Fix It
Sync iPhone Calendar with iCloudChoose to Sync All Calendar Events on iPhoneMake Sure Calendars Are Synced On All DevicesSoftware UpdateReset Your iPhone
Sync iPhone Calendar with iCloud
Step #1. Open the Settings app on the iPhone or iPad. Step #2. Tap your name from the top. Step #3. Tap iCloud. Step #4. Turn ON the option for Calendars. This makes sure your iCloud calendars are synced to the device.
Choose to Sync All Calendar Events on iPhone
More often than not, having a different selection in Sync events leads to a lot of confusion. So makes sure all events from the past are synced and not just a few from the recent past. For this: Step #1. Open the Settings app. Step #2. Scroll down and tap Calendar. Step #3. Tap Sync. Select All Events.
Make Sure Calendars Are Synced On All Devices
If you have more than one Apple device, then ensure that the calendar is synced across all your iOS, iPadOS, and macOS devices. For this, first of all, you have to sign in using the same Apple ID on all these devices. Next, make sure Calendar is enabled in iCloud (first method of this page). For enabling iCloud sync for a calendar on Mac, Step #1. Click on the Apple logo from the top left and click System Preferences. Step #2. Next, click Apple ID. Step #3. Now, Tick the box for Calendars. After this, all events from calendars will be synced across all your devices. This would ensure that an entry you make on Mac’s Calendar app is also shown on your iPhone and vice-versa.
Software Update
Step #1. Open the Settings app on iPhone and tap General. Step #2. Next, tap on Software Update. Step #3. If you have a pending update, tap Download and Install.
Reset Your iPhone
This is an extreme measure that erases your phone completely. Before you look to reset your iPhone, make sure you have a backup so that you can restore all your important data after the reset.
Signing off…
I hope this short guide was helpful. Finally, birthday events can be added to the Calendar app simply by adding the birth date to a contact in the contact card. Next, open the Calendar app, tap Calendars from the bottom row, and check Birthdays. Now you will see birthday events in the Calendar app.
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