Why won't iPhone sync with iCal?

Since downloading the most recent iPhone software update on Mon. 10/1/07, my iPhone won't sync with iCal on my MacBook. I get a "mingling data" error, and that's odd because the appointments that don't transfer to iPhone can be clearly listed in iCal. What happened with this latest update to create this?
Thanx!
MiclHer

Actually, my question is answered by myandrews response to Carl Jonsson's same problem dated Sep. 28, 2007.
Thanx,
MiclHer

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I'm having the same issue. iTunes sees my iPhone 4 and I can access the contents via itunes, but the sync won't work - it starts to sync, then states, "waiting for sync to start," then after a few minutes ends up with an error, stating, "The iPhone "XXXX" could not be synced because the sync session failed to start." This happens whether I try to sync with iCloud or my computer.
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Why won't contacts sync with iphone

I'm loosing the will to live and I've spent hours trawling through the huge amount of fixes suggested on various sites but to no avail. I run a macbook pro, OSX10.6.8, Itunes 10.4 and the software on the iphone was updated today. Syncing with iTunes worked fine up until about 3 weeks ago - I don't know what happend but it just stopped. If I delete all the contacts in the mac address book (310) and run a sync nothing changes on the 472 iphone contacts. All the settings appear to be correct in the preferences. If I check the box to stop syncing contacts and delete all 472 contacts on the phone - they all dissapear. When I reset the sync contacts check box and check the "replace all the contacts on this phone during the next sync" box I get all 472 back again. Can anybody offer any help at all please before I slash my wrists!!

Clearly it doesn't work as I imagine! But I still don't understand what you mean. I'm not saying that I don't like Google's instructions,- what makes you say that? I'm saying that I think I've already followed them to the letter. How have I not? What else, exactly, do I need to do? Talk me through an example, please.
"You have added a data conduit between Google and your phone. But you have not put anything IN that conduit, save the data Google already has."
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Add Event on iPhone, Syncs with iCal, Then Disappears on both.

I've experienced this before and now it's just getting annoying. I use my iPhone a lot for it's calendar functionality. I add a ton of events through my iPhone, but occasionally, I do turn on my MacBook to look at my schedule using iCal. Doesn't happen everytime, but it does happen... where I sync the two apps and every item created within iCal is stored, but every item created on the iPhone deleted.
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Folks,
I'm still having the problem. Here's the description again:
My iPhone is somehow synced with two computers -- an iMac and a Macbook Pro. I only want it synched with the iMac. Yet, every time I open iTunes on the Macbook, the iPhone appears. When I open iTunes on the iMac, the iPhone will also appear. But then during the synch process it begins to add back all the numerous apps I had turned off. This happens not matter whether I connect the iPhone via wifi or cable. If I turn off wifi synching in iTunes on the Macbook, when I open iTunes on the iMac, it is also turned off. It's as if they are the same program.
Point of comparison: I have an iPod Touch. It is synched only with the iMac. It does not appear in iTunes on the MacBook.
Another point of comparison: When I have my iPhone at work and open iTunes on my iMac in my office, the iPhone does not appear unless I connect it. It appears in iTunes, but it doesn't try to sync with my office machine. And there are no ill effects when I bring the phone home and connect it to my home iMac. But any time I open iTunes on the MacBook, the iPhone mounts. And when I connect it to my home iMac after that happens, it will install the removed apps if I have deleted them.
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This all began in February. I took my MacBook on the road and connected the iPhone to it to charge. I opened iTunes and I guess I must have somehow selected the command to synch the iPhone to the computer by mistake. (But I don't remember a warning window.)
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Iphone sync with iCal problem

HELP PLEASE!! i recently overhauled the calendar on my iphone and erased everything on iCal on my mac. now when i sync with my computer (i pick "sync all calendars") it erases everything on my iphone and i have to restore from backup to get my calendar info back. I'M GOING MAD!! how can i do a one time, one way sync from iphone to ical (or just merge the two for that matter)? PLEASE HELP!!

vghaemmaghami wrote:
HELP PLEASE!! i recently overhauled the calendar on my iphone and erased everything on iCal on my mac. now when i sync with my computer (i pick "sync all calendars") it erases everything on my iphone and i have to restore from backup to get my calendar info back. I'M GOING MAD!! how can i do a one time, one way sync from iphone to ical (or just merge the two for that matter)? PLEASE HELP!!
I don't think you can force the iPhone to overwrite iCal (though you can do the reverse). I even looked through MobileMe to see if you can do it, and found nothing.
The only suggestion I have is if you have a backup of your Mac somewhere. If you use TimeMachine, you can get an older calendar out of User/Library/Calendar.
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Why won't iphone sync mac address book contacts?

I've got an IP4 and a MAC G5 both with most recent software updates. At around the turn of 2012 I started "losing" new contacts from my phone, It transpired that the phone and computer were conflicting some how and contacts were not being updated or synced. When I tried to manually input these new details to Address I am told that the Database could not be opened as it is corrupted.
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iPhone manual:
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also bookmarked in Mobile Safari.

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What OS was on your old computer and now the new one?
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Some advice please

Plug yr iPhone to your compu in the old fashioned way with cable.
Just to cover yourself...select the iPhone in Devices of left pane of iTunes window, then on main pane, select radio button Back up to Computer. Right click on the iPhone in devices, do a backup. It shld then be on your compu'.
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I'm sure this will help.
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Try this:
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I found this on another discusion where events were syncing but never showing up in ical. Curious to knowifit will work for any of these issues. Let me know please.
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bruce1964,
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Why won't iPhone sync with iCal?

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