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Paul Eckberg Author

Level 1

0 points

Problems with syncing iPhone and Calendar with iTunes 8.1

I just updated to the new iTunes version 8.1. I just tried to sync my iPhone, and got the Sync Alert:
"Syncing with your iPhone will change more than 5% of your Calendars on this computer."

Under the Modify section, it lists all of the birthdays found in my address book. For some reason, it wants to update the location information of all of those birthdays from my address book to an empty location. There are also a few random calendar events that I have updated within the past week(?) that iTunes also suddenly wants to modify.

Is this an error, or is it a new way that Apple is synchronizing birthdays? I chose to Cancel the sync operation instead of modifying all of the birthday information. Unfortunately, now none of my added calendar events can be updated to my iPhone without also modifying ALL of what I described.

MacBook Pro, Mac OS X (10.5.6), 2.53 GHz, 4 GB

Posted on Mar 11, 2009 11:25 PM

28 replies

MPi

Level 1

0 points

Mar 13, 2009 3:17 AM in response to Paul Eckberg

Itunes 8.1 screwed-up one of my calendar (at least) after I synced with my iPhone 3G.
Sync seemed to happen with no issue (read no error messages), but:
- actual data in iPhone did not get updated
- iCal data got an enormous number of duplicated events: have very old stuff being repeated daily on one calendar.

As I do not want to loose historical data in this calendar, I'm now looking for any solution to get it back to normal...
Any app that could make a "diff" between 2 calendar versions?

Thanks.

Mar 13, 2009 6:27 AM in response to Paul Eckberg

I had same problem all day yesterday. Tried the resetting sync data and overwriting data on iphone and it would work. Then when I tried again, it would hang. This morning tried the sync without resetting anything and it just worked. I'm afraid to try again in case if fails.

Mar 13, 2009 8:23 AM in response to Paul Eckberg

Same Problem. Tried all thoughts/ideas as relevant to my platform.

Looks like another major sync issue that has historically plagued Apple.

lb

Wasabe

Level 1

0 points

Mar 13, 2009 12:10 PM in response to Paul Eckberg

I had this problem and when i connected my iphone i went to the info tab scrolled down to calender ( No supported calender application can be found). I further scrolled down to advanced and clicked on replace information on this iphone: check calender and resync and the problem was fixed. Notice that the calender box is the only one that can be checked.

Mar 13, 2009 2:09 PM in response to Paul Eckberg

PC/Outlook 2007
Same problem. Fixed by Reset Sync History in iTunes. Then Sync. If Sync hangs, cancel, disconnect, restart iTunes, connect. Sync worked and still working after several tests.

From: http://discussions.apple.com/post!reply.jspa?threadID=1937530
1. Open iTunes.
2. From the Edit menu, choose Preferences.
3. Click the Devices tab.
4. Click the Reset Sync History button.

Mar 13, 2009 4:54 PM in response to stephen337

Same here. When I start the sync, it says 'Syncing calendar' at the top of the screen, then the error box pops up because I don't have a calendar program installed...and on the Info page, there's no option to turn off calendar syncing, because there's no calendar program installed. Catch 22.

Never happened before 8.1. Good going, Apple! Good to see MS don't have the monopoly on f *ing things right up.

lt55

Level 1

26 points

Mar 13, 2009 6:06 PM in response to Paul Eckberg

Upgrade to iTunes 8.1 has destroyed my evening, talk about Friday the 13th!
Nothing would sync. iTunes applymobiledevicehelper crashed other sync programmes for mobile me preferences crashed. I could not access the sync tab in mobile me preferences and data on the phone was wiped!

Yet another iTunes/Mobile me triumph!

System restore- no help. Re-install no help.

Then I read the helpful post below suggesting a reset of sync data in iTunes and then in Mobile me preferences.

Success- I seem to have everything back (diary,contacts,bookmarks) and the data in Outlook has not been corrupted.

Thank-you for this helpful advice. Apple what are you doing releasing an upgrade that caused so much trouble?

Andrew79

Level 1

0 points

Mar 14, 2009 5:34 PM in response to Paul Eckberg

Any Mac users with iTunes trying to set the URL field in birthdays as empty, try this:

http://discussions.apple.com/message.jspa?messageID=9159380#9159380

effyoo

Level 1

0 points

Mar 16, 2009 9:46 AM in response to Andrew79

yup i had this same problem too. tried resetting sync and restarting and both didnt work. it solved it for me doing this:

http://support.apple.com/kb/TS2654

by toggling the calendar sync off then back on.

Mar 16, 2009 10:25 AM in response to rockandroel

I did the reset sync process by going to the edit / preferences / device tab and deleting all of my old backups plus clicking the reset sync option.

As soon as I did another sync it synced the contacts and calendar with no problem. It did ask me to accept 3 mods to my contacts and fix one conflict with the calendar (which did not even look like a conflict).

I am using Windows Vista Business, iTunes 8.1, iPhone 3G v.2.2.1 and Outlook 2003.

Paul Eckberg Author

Level 1

0 points

Mar 16, 2009 12:56 PM in response to Andrew79

Andrew79 wrote:
Any Mac users with iTunes trying to set the URL field in birthdays as empty, try this:

http://discussions.apple.com/message.jspa?messageID=9159380#9159380

THIS seemed to fix it for me.

Thank you!

sethg77

Level 1

0 points

Mar 16, 2009 12:57 PM in response to effyoo

yeah this works
"http://support.apple.com/kb/TS2654

by toggling the calendar sync off then back on."

thanks effyoo!

now, if they could just get my subscribed calendars to work on my iphone, then i would be a happy camper. well, flash & quicktime playback and a junk mail filter would be nice too. i will keep my fingers crossed these get fixed on later updates.

EDG55

Level 1

21 points

Mar 18, 2009 6:23 AM in response to Paul Eckberg

So I made the mistake of accepting iTunes' request to modify 60 of my appointments after the 8.1 update. Now I've got numerous all-day events that have been changed to go from 11 pm to 11 pm. Kind of a mess.

Any simple way to go back to how it was before this last sync? And if so, how do I prevent this from happening again?

Thanks.

Problems with syncing iPhone and Calendar with iTunes 8.1