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itunes could not sync contacts / calendar to the iphone "---" because the sync server failed to sync the iphone

itunes could not sync contacts / calendar to the iphone "---" because the sync server failed to sync the iphone


i have read just about every support entry to this so PLEASE don't respond unless you've read the scenario.


win8.1

itunes 11.4

iphone 4 (last of the os7.1.2) (os8 won't work on the 4)

outlook 2010 (up to date)


so until either thursday or friday, syncing via itunes has been great. then i start getting the error dialogue box. this is what i've done / tried:

changed the USB cable

reset sync history - (done all the various steps of reset / delete / restart / unplug etc.)

deleted backup

repaired all apple related programs in the control panel>programs and features

saved outlook contacts and calendar as a new .pst

created a new user

unchecked advance option in INFO in itunes (that whole scenario did nothing)

signed up with icloud and it worked BUT i LOATHE icloud (and all the hassles it presents) and the bottom line sync with itunes 'should' work.

i have checked all errors within contacts (none i only have 170)

uninstalled / reinstall of itunes


i have NOT done a restore of iphone. (last resort) and hoping that there would be a solution before going there.

so there you have it. any suggestions would be really appreciated.

iPhone 4, Windows 8, outlook 2010

Posted on Sep 22, 2014 3:14 AM

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Question marked as Best reply

Posted on Sep 22, 2014 9:19 AM

I have the same problem.

Win 7 (64 bit), Itunes 11.4, Iphone 5, IOS 8.

Since I have upgraded my Iphone to IOS 8, while I syncing my device (both on Wifi or cable), I keep getting the following message:

"Itunes could not sync calendars to [my] Iphone because the sync server failed to snc the Iphone".

I don't have any problem with syncing my Ipad 2 ( which was also upgraded to IOS 8), neither had I any problem syncing my Iphone 5 before IOS 8 upgrade.

So it's quite clear that the problem has to do with the IOS 8 upgrade, which somehow broke the connection between the device and the sync server.

Any idea how to fix it?

Thanks.

23 replies

Oct 21, 2015 3:57 AM in response to jdubz

Hi,

I had the exact same problems, followed the troubleshooting guidance, which didn't help at all and then found your post, which fixed the problem immediately; its a shame I didn't find your helpful post first, it would have saved me hours of unnecessary and pointless troubleshooting. What do you think caused the problem in the first place; the process had run fine for over a year and then just stopped?

Many thanks

itunes could not sync contacts / calendar to the iphone "---" because the sync server failed to sync the iphone

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