Skip navigation

iPhone calendar will not sync with iCal on Mac

347 Views 3 Replies Latest reply: Oct 8, 2013 8:19 PM by katnat1220 RSS
Manolis Kroussaniotakis Calculating status...
Currently Being Moderated
May 3, 2012 4:01 AM

Calendar entries on my iPhone 4S/iOS 5.1 will not sync with iCal on my MacBook Pro 2.4/10.6.8, but it will the other way around. I have tried:


  • Restarting iPhone
  • Re-setting sync services (holding down Option key and clicking on Sync icon in menu bar)
  • Changing which calendar to sync with (iTunes 10.6.1)


This may have something to do with having to do a complete Time Machine backup after a Volume Optimisation with Tech Tool Pro rendered my startup disk as un-bootable....???


I do not use Mobile Me or iCloud (can't with Snow Leopard...) and it is a straight USB connection.


I consider myself a medium expert, with no programming/Terminal skills whatsoever.


Any help is appreciated.



MacBook Pro, Mac OS X (10.6.8), iPhone 4S


More Like This

  • Retrieving data ...

Bookmarked By (1)


  • This solved my question - 10 points
  • This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.