Upgraded to iTunes 11.4 and now it won't sync my iPhone 5s-sync button is greyed out.

All is well when I follow your guides to delete some file and install iTunes 11.3.1,

Thank you very much!

Thank you!!!

I have replace all those files from the time machine then reinstall the iTunes 11.3.1. and it works.

I think it's safer than delete them.

two MacBooks, both early 2008, both with iTunes 11.4, both with OS X 10.7.5 (latest supported OS)

The ituens 11.4 update installed without incident on one machine, the other machine got the appleUSBethernet.kext issue. On that machine, I installed iTunes from the iTunes download page, without any problem. I did not uninstall first.

No sync issues, that I can tell, on the machine that installed without incident (to iOS 8 iPhone 5s).

On the machine with the install issue, my iPhone 4s, iOS 8, shows up and then disappears from the iTunes sidebar. I have been able to complete wifi syncs, but not often, since this happened. Plugging in the phone allows sync. When the macbook doesn't see the iPhone, the iPhone doesn't see the macbook.

Contacted Apple Service center today and documented this problem.

Gave them the details of the issue and also gave them a link to this support thread should they need further information.

They indicated that they will get this information to their Engineering team ASAP.

I hope this initiates a real fix for the problem.

Hi, it looks like we are an identical situation, you and I. Same hardware and same beahviour. Stupidly, before upgrading my iPhone 5 to iOS8, I erased all my music library and now I cannot restore it. I started having this problem as soon as I upgraded to 11.4.18 but I thought that iOS8 would work...

ave the same prob on iPhone4 but not on my iPod. Any piece of advice would be precious!

I will follow this thread carefully, hoping to be able to transfer music on the iPhone soon.

Thanks cwa2, for your post :

Sep 13, 2014 10:50 PM

Re: Upgraded to iTunes 11.4 and now it won't sync my iPhone 5s-sync button is greyed out

Not being able to sync was driving me mad, but I followed your instructions and this worked for me. (I'm on OSX 10.6.8 32bit, Mac Mini, iPhone 4)

Cheers!

cwa2, God bless you! Up and running again.

Many, many thanks for sharing this.

This is my first time using apple support communities, so I hope I'm doing this correctly. I see the post that cwa2 made on the iphone sync greyed out and the response on 9/13/14 with the files to delete before reinstalling itunes 11.3; but I'm not familiar with navigating in a mac, and while I have the same problem as the others running 10.6.8 on a 32 bit machine, I cannot seem to locate the library/framework files or the system/library files. I get to the ~library folder, but cannot locate the others. Any chance you can point me to the location of those files?

In addition I see in this community discussion where in some of the posts, you can hit reply, but others don't offer that. Any pointers?

Thank you.

cawarner-

To get to the Library/Frameworks files:

Find your hard drive icon on your desktop (might be called Macintosh) and double-click to open.

Double-click on the Library folder.

Double-click on the Frameworks folder.

The iTunesLibrary.framework file will be in there.

To get to the System/Library files:

Find your hard drive icon on your desktop (might be called Macintosh) and double-click to open.

Double-click on the System folder.

Double-click on the Library folder.

You'll find the remaining files needing deletion in the CoreServices, Extensions and PrivateFrameworks folders here.

Also, some people have had trouble seeing the contents of the CoreTypes.bundle in the System/Library/CoreServices folders, in order to get to the MobileDevices.bundle. You can access it this way:

• In the Finder, select Go To Folder under the Go To menu (or Shift+ Cmd+ G)
• Type in: /System/Library/CoreServices/CoreTypes.bundle/Contents/Library/
• The MobileDevices.bundle will be displayed; drag it to the Trash.

basically, my problem was, that this bundle was simply not there on my hard drive (and i sure as **** did not delete it first!). funnilly enough i found it in my time machine. i think what wjtaggart posted, with not deleting the files, but simply replacing them from the time machine, is probably the best way. because with even carefully following cwa2's steps, my mac stopped to function normally, and i couldn't install any programs. i am wondering now if pacifist would have helped?

but honestly, if someone doesn't feel fit enough to try the suggested steps out, they should probably find someone who does. looking in a support forum only helps as far as you understand the issue/system. i'd strongly suggest to find some computer crack, if one does not know how to cope with the system files or mac terminal, etc. a certain understanding of the system is absolutely mandatory. once i understood that this was a problem with the itunes software, i realized that what cwa2 wrote made complete sense, and once this didn't quite work i retraced my steps and realized that i simply hat to replace the faulty files with the good ones from my time machine, which eventually worked.

today my iphone 5 and ipad wanted to upgrade to ios8 - since i am not syncing my iphone with my mac, i updated it there, but i dare not to update my ipad, just in case this will stop working. does anyone know if itunes 11.3.1 is compatible with ios8? i seriously would not be surprised if it isn't... so i am waiting a bit, at least after my holidays, so that i will be able to sync until after i am back, since i most definitely will not want to be bothered with sync issues, when i am on my well deserved vacation! 😉

hope you all could solve your issues, or will very soon!

Yes, I'm running iOS 8 on my iPhone 5s and it is now synching fine with iTunes 11.3.1 on my MacBook Pro running OS 10.6.8.

cool, thanks for the fast reply!

just to play it safe i will wait, but it is reassuring to know that it should work!

The fix worked! Yeah! Thanks all for your help.

Thank you cwa2! This issue was driving me nuts and your steps worked perfect. I'm now syncing perfectly with 11.3.1. It's a shame that apple's QA testing missed this significant software defect. (One would surmise that a test case for iOS sync with macos 32bit iTunes would be included in their automated regression testing.)