Previous 1 2 Next 16 Replies Latest reply: May 20, 2013 3:25 AM by marietacistellera
MollyAyren Level 1 (0 points)

I got a new desktop two months ago and today for some reason, iTunes has decided it will not sync my music onto my iPhone 4s anymore.

Here are some facts:


The music was on there the other day.

The music not only shows up in iTunes but will play as well.

I have deactivated the old computer so there is only 1 active computer on my apple id.

I have disabled home sharing so the new computer is not in any way connected to the old.

Yes, the songs are checked.

Yes, the sync entire library is checked. (I even tried just syncing one playlist - no luck)



I feel like I must be missing something basic because I am really frustrated and cannot figure out why it won't sync.



iPhone 4S, iOS 5.1.1
  • randers4 Level 9 (62,715 points)

    Since you didn't mention it so I thought I would ask, did you also check to see that  you have checked "Sync only checked songs and videos" on the summary tab of your iTunes sync settings (and I assume that you checked Sync Music on the music tab as well)?  If so, then you may have to sync all the music off your phone (by unchecking Sync Music and syncing), then back on in order to fix things.

  • MollyAyren Level 1 (0 points)

    I did check that. I've tried syncing it every which way - with the manually manage box checked and without, with the sync only checked box checked and without.


    There isn't any music on the phone now because when I realized I had this problem, it had removed everything.

  • MollyAyren Level 1 (0 points)

    I even uninstalled iTunes and reinstalled it after disabling home sharing and deactivating the old computer....

  • randers4 Level 9 (62,715 points)

    Not sure how you uninstalled iTunes, but it often isn't successful unless you uninstall iTunes and all of its components by following  this guide exactly: Windows XP or Windows Vista/7, then reinstall iTunes.  You might try this to see if it helps.

  • iTech - Cnsk Level 1 (15 points)

    If you haven't copied your itunes library from the old computer to the new one as yet, then syncing with this new itunes library will replace everything on your iphone


    if you already have your library there, then you can try resetting sync history on Windows by:


    Selecting edit from menu bar then Preferences> Devices Tab> then Reset Sync History button


    On Mac


    Select iTunes from apple menu bar Preferences> Devices Tab> Reset Sync History button

  • randers4 Level 9 (62,715 points)

    iTech - Cnsk wrote:


    On Mac


    Select iTunes from apple menu bar Preferences> Devices Tab> Reset Sync History button


    Reset Sync History is not an option in iTunes for Mac.

  • MollyAyren Level 1 (0 points)

    It didn't help anyway, but thanks for the try!!


    I'm going to try to uninstall iTunes [again] and reinstall it and see what happens.


    Stupid question - I'm not missing anything from the old computer that could be causing this am I?

    Would it be beneficial to plug the iPhone back into the old laptop and see what happens or just more hassle?

  • randers4 Level 9 (62,715 points)

    If you've already successfully synced music with the new computer there shouldn't be anything on the old one that you're missing or that would help.  Attempting to sync with your old computer at this point would probably just create more problems as it will delete all media off your phone and replace it with the media in the other iTunes library.

  • MollyAyren Level 1 (0 points)

    Reinstalling it didn't fix it.


    As far as syncing it goes, when I synced it to the new computer, it deleted all the songs since there weren't any in my iTunes library at that time (I hadn't brought the songs from the old computer over to the new one yet). Now that there are though, I cannot get them to sync onto the phone even though the songs are there now..

  • MollyAyren Level 1 (0 points)

    Also - there isn't any media on the phone now since the syncing took it all off.

    The only thing remaining are my apps and photos which are all still fine after today's repeated syncs.

  • randers4 Level 9 (62,715 points)

    If your old computer still works, you should try copying your entire iTunes folder from your old computer to your new one using one of the approaches outlined here:  This will copy not only your music but your iTunes library files, which include the syncing relationship that your phone has with this library (i.e., iTunes will then recognize your phone and your syncing history and won't try to delete all content again).  This may also fix your syncing issues.  (I didn't realize that you hadn't already established a successful syncing relationship with your new computer when I said earlier that there wouldn't be anything on your old computer that would help.)

  • MollyAyren Level 1 (0 points)

    I have copied everything over via the home sharing option. I am going back through now and seeing if there is anything I missed though. It doesn't appear that there is.

  • Jaci34 Level 1 (0 points)

    Did you ever get this issue resolved? I am having a similar problem, except that Itunes will sync some of my music from my new laptop to my Iphone 4S, but not all of it. I have tried every different method of selecting & syncing that I can think of, have tried dragging & dropping, tried copying missing music from my external hard drive, tried syncing from my old lap top, nothing works!! Very frustrated...any suggestions?

  • Lark.Landon Level 1 (35 points)


    Open iTunes



    Store > Deauthorize this computer



    Store > Authorize this computer




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