Why Won'T My Calendar Sync With My Iphone. One of the reasons why iphone/ipad calendar not syncing is you may have saved new calendar events to the local calendar instead of the icloud calendar and items on local calendar can’t be synced over. There are a few steps you can follow to avoid onenote sync issues on a mobile device:
Ensure the google calendar is enabled in the ios calendar app; There are a few different ways to clear out the port.