IPhone 4 sync problems - adds 60,000 blank contacts and calendar hangs

Since the beginning of this week my iPhone 4 has stopped syncing properly. It adds 60,000 blank contacts to my computer (which take hours to delete) and then completely hangs when it gets to the calendar sync. I left it syncing overnight and it was still at exactly the same point when I came back to it this morning.
Does anyone else have this problem? And how do I solve it?
I can't find any mention of it on the Internet.
I have an iPhone 4 with the latest version of iOS, a late-2008 aluminium unibody MacBook with 2.4GHz Intel Core 2 Duo, and I'm running (stupidly, I suspect) Outlook 2011 SP1.
This is driving me insane. Please help.
Also, does anyone know how to get support from Apple? Their support pages are the most confusing things I have ever seen in my life.
Thank you.

Me too. Think it is since 6.1.3.
Interesting other quirk is that as well as NOT syncing my calendar, it also unticks my calendar from pc on the iphone.
When ii retick it, i get the calendar back, but as it was before the sync, ie, it does not have the bnew events from my pc in it.
This is a 2 way problem.
New events on my iphone wont sync to my pc, and new events on my pc wont sync to my iphone.

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When I synchronise my iphone 4 by itunes with my Mac, the contact and calendar aren't transfer in my Mac

When I synchronise my iphone 4 by Itunes with my computer Mac, the contact and calendar aren't transfer in my Mac.
How can I transfer these data.
Thank you for your help

Connect the phone, click on it in the list, then click on the Info tab and check the boxes to sync contacts and calendars.

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Previous to updating to Lion, I would use iSync and a plug-in to sync my Nokia C3-00 to my Address Book Contacts and my iCal Calendar events.
Now that I updated, iSync is gone. However, I still need to sync my phone from time to time, is there anyway I can go about this?

This worked for me (I have a Sony Ericsson Elm J10i2). Thanks for the tip.
Message was edited by: vicksen

Contacts and calendar wont sync on iphone 4

I can no longer sync calendars and contacts on my iphone 4. Running the latest iTunes and iPhone software. Running all the latest Snow Leopard updates.
It used to work - not sure what caused it to break. I have spent hours trouble shooting, viewing forums, google searches etc.
I have recently upgraded from Leopard to Snow Leopard roughly about the same time the issue started to exist - not exactly sure when it first started to appear, so don't really know if it is the upgrade that caused it or not.
When syncing, it freezes when trying to synch contacts. If I turn off Contacts synching, then it freeze while trying to sync calendars. If I turn off both Contact and Calendar Sync, the rest of the phone syncs fine. Only occurs with Contacts and Calendars.
I have tried following the steps from this document: http://support.apple.com/kb/TS2481
Basically exporting contacts, deleting them and reimporting them. This did not solve the problem.
I have tried whipping the iphone clean and restoring from backup - this did not solve the problem.
I have tried whipping the iphone and creating a new iphone account and synching was still an issue.
I don't know what else I can do to solve this issue.
Please help.

Hi, could you specify what you did. It appears that nothing on my iPhone syncs any more. I have an iMac and iPhone 4 running the latest system updates. Thanks!

Since upgrading to maverick I have had problems syncing contacts and calendar between devices

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In above apple support created new accounts etc to arrange connection but now I have lost the other two items. All three were working perfectly with icloud before updating. Sorry Apple but this is a blunder!!!

Hi,
Thank you for taking an interest in my problem.
What actually transpired was my Macpro (contacts) would not update after I put changes in to contacts in either iphone or ipad. Apple checked and discovered that changes made in either macPro (contacts) and contacts(cloud.com) did not talk to each other so concentrated on this.
The rep had me signout of my macpro user account, and create a temp new user to which I signed into my icloud account as normal. Then, changes in either macpro or cloud.com now worked. He then did some changes at his end and after exiting the temp user and resigning in as origal macpro user this now made changes to each other. OK. We then deleted the temp user and this worked! but since then I have discovered that iphone and ipad now do not change icloud.com contacts or calendar so would not of course change contacts on macpro!
Other services on icloud (photo stream, mail, docs and data, find my ----, etc) all function with my iphone (so have to presume my ipad also, but this is not with me at this time) so the problem is confined to just contacts and calendar.
In summary, I do have only one icloud address but which appears to have two sets of data as the devices will communicate with something but not altogether!!
I am thoroughly confused, especially as it was all fine until I upgraded from M\Lion to Mavericks on my shiny new macpro a few weeks ago. I had moved from Windows to Apple to avoid just such problems.
Not enamoured with Apple at the moment, but thank you for your assistance - hope this is a better explanation.
Kind Regards

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Hi UTNick
Seems like there is a few dramas with syncing through iCloud at the moement - hopefully Apple get this sorted with an update ASAP. Im using Outlook 2010 and didnt have any worries at that end, all the unsynced data and crashing was on the iPad. Good lesson in all this, make sure backups are in place - thanksfully I didnt lose any data either.
I managed to fix my sync problems and crashing Settings. Not sure what the specific solution was but it involved -
Settings>General>Reset>Erase All Content and Settings
Reset iPad to factory and then restore from back-up
Turned off iCloud
Reset my Apple id password
Backed up all my contacts from Mac Contacts and then reimported them
Synced my iPad through iTunes, syncing the contacts (with the option 'Replace everything on the iPad')
Re-enbaled iCloud sync on the iPad
The Mail, Contacts and Calendars panel in Settings no longer crashes, and all my data is again syncing perfectly across the Win7 Outlook 2010, the Mac Contacts app and the iPad Contacts app.
It felt like a bit of a black-magic solution, and I'm still not sure what the underlying cause of my issues was. Fingers crossed it all hangs together until the next iOS update.
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Hello. I am having difficulties syncing my iPhone 4S Contacts and Calendar with Outlook 2007. It used to work perfectly with my iPhone 4, but now I am having difficulties both ways. That is, I add something to my Outlook 2007 Calendar, sync in iTunes, but it doesn't appear in my iPhone. Or, I add a Contact to my iPhone, sync in iTunes, but it doesn't appear in Outlook 2007. I believe I have the iTunes settings correct.

Me too. Think it is since 6.1.3.
Interesting other quirk is that as well as NOT syncing my calendar, it also unticks my calendar from pc on the iphone.
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For this particular issue, as suggested by yellowadept, go the the info tab at under the advanced section, choose replace contact information on iphone. This will over write any contact information on the iphone with what you have in address book on the computer.
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ISync / MobileMe Sync added 18.000 blank contacts in Contacts app !

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If you are syncing between computers, then it wasn't iSync.
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The *MobileMe Sync* forums start here:
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Synced with a different user, or with a different iTunes library?
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How do we sync contacts and calendars (ONLY) between two iCloud accounts, two iPhones and one iMac with two user accounts?

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Originally I tried a workaround by simply having her iPhone log into my iCloud account. That works great for the calendars and the contacts. But...she can't sync anything else from her iMac account to her new iPhone because she's presently "forced" to use my iCloud account. And neither of us want to sync our other things to each other's iMac accounts or iPhones. Also as we're both using my iCloud account, in things like the Find My iPhone app, the Cloud is seeking two phones labeled with my name and none with her's. So we definitely don't want this as the set-up and communications network between our devices.
We want to set up our users on the iMac to sync to our SEPARATE AND DIFFERENT iCloud accounts and then have those iCloud accounts sync calendars and contacts (ONLY) between themselves, and then push that data to our separate iPhones (or the other way, from either of our iPhones to the individual accounts on our iMac and the other person's iPhone). Does this description make sense to you? I've diagramed it nicely using Keynote, but even thiough I can draw it, I can't figure out how to set up and configure all the devices to make it work. If you would like me to send the Keynote slides (just two of them - the current and desired configurations - please send your email address to me at [email protected] and I'll be happy to forward it to you.
If anyone can help me set this up I'd be most appreciative! Thanks so much. Merry Christmas and Happy New Year to all readers in this community!

BobT.
I had the same problem, and decided to look into it last night.
First of all, the solution I would like to have is for Apple to allow for selection of iCloud accounts per application, i.e. Contacts to one, Photo Stream to another. I believe this would be the most straight forward solution for the problem we are facing.
Since this is not an option I came up with a workaround. I was most interested in solving this for Contacts, so this is what I tested for. Now I have all 3 devices with the same contacts.
1) Turn off iCloud for Contacts on all devices. On the device that has the Contacts list that you would like to propagate to all others select to keep the contacts, and on the others select not to keep them.
Note that the current backups still exist on iCloud, so in case something goes wrong you can still turn the iCloud for Contacts back on to get your current Contacts back.
2) In iTunes, sync All Contacts with the phones, starting with the one with the Contacts content you chose to keep.
From this point on, the 3 devices should sync contacts with each other.
This, of course, will stop your iCloud backups of Contacts, but I don't think this is really needed. You are already storing copies of your Conacts on 3 devices, which for good parts of the day are likely not all co-located. You also potentially have Time Machine backups turned on, which would mean there is a 4th copy there as well. For the case of Contacts iCloud only complicates matter ... that is until Apple implements the solution I first wrote about.

Can Not Sync Contacts and Calendar to iPhone Since iTunes Upgrade to 7.6

Hello, I have an iPhone and iTunes installed on my PC--which is running Windows XP Home Edition 2002 SP2, and I only sync my Contacts and Calendar using the sync functionality through iTunes and MS Outlook 2007. I was on iTunes 7.4 and everything worked fine. I just upgraded to iTunes 7.6, and now I can not get my new contacts and calendar info from Outlook to sync with my iPhone anymore. I get this error message:
The program "C:\Program Files\Common Files\Apple\Mobile Device Support\bin\OutlookSyncClient.exe" --sync com.apple.Outlook --entitynames com.apple.calendars.Attendee,com.apple.calendars.Calendar,com.apple.calendars.D isplayAlarm,com.apple.calendars.Event,com.apple.calendars.Organizer,com.apple.ca lendars.Recurrence,com.apple.calendars.Task caused a problem and is going to close.
Is anyone familiar or know of the solution?
Thanks!

Thanks, but as I've said I've tried all of that described in the reference you've kindly given. I don't have a local cache, and hence no PST files. The only one I have is an OST file which I have checked for integrity using the Microsoft supplied tools. I have switched to local PST (a suggestion given in another thread), and found that not to work either, so have switched back to non cached. I have even renamed the OST file to .BAK, and had it rebuilt. Again to no avail. There is a bona fide bug here. The http://docs.info.apple.com/article.html?artnum=306635 article does only say "This may be due to the format of the Outlook Personal Storage File (.PST)", so I guess as the operative word is "may", its not a guarantee of this being the solution.
Also I'm not syncing my contacts, I'm only doing the calendar nothing else.
Additionally, this used to work, so your hypothesis, of the "bad data", being synced in 7.6 and then not being able to be subsequently budged is a definate goer I think. But the trick would be to work out what the bad data is. I'm assuming the source of the bad data is the iphone, so I've deleted old calendar in outlook entries I know to have come from the iPhone, that has, as yet, been a fruitless exercise.
I do thank you though for your help though, I'll be scouring the internet for any tidbits of information which might help, and I'll post them back here if I find the solution, or anything which may help others unfortunate enough to be in this situation.

TS1347 I had to get a new hard drive on my laptop PC. Now I am unable to sync my contacts and calendar from my iphone to the outlook software on my PC. Although they are backed up on icloud, I really want the information on my computer.

I cannot figure out how to sync my contacts and calendar from my iphone with my windows PC. The message during the itunes sync process is that information is being backed up to both the cloud and my PC. However the Outlook software remains blank. What can I do??

Hi Stacey,
Thanks for visiting Apple Support Communities.
You may find the tips in this article helpful with resolving the error you're seeing:
iTunes Store: "An unknown error occurred (-9808)"
http://support.apple.com/kb/TS2753
Best,
Jeremy

IPhone 4 sync problems - adds 60,000 blank contacts and calendar hangs

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