Previous 1 2 Next 27 Replies Latest reply: Dec 5, 2013 9:21 PM by danielgluk
JayKay01 Level 1 Level 1 (10 points)
iTunes (v8.6.1) cannot sync my iPhone (v3.0.1). Says an unknown error occurred (-50).

Any ideas how to sync?

iMac, Mac OS X (10.5.8), iTunes 8.6.1 / iPhone v 3.0.1
  • Shaun Campbell Level 1 Level 1 (5 points)
    I've exactly the same problem. Synched my iphone 3G to 3.0.1. I also got a message "An update to the carrier settings for your iphone is available. Would you like to install it now?" After this I get "The iphone "iphone" cannot be synced. An unknown error occurred (-50)"

    I reset the phone and still the same.

    I've just tried syncing my wife's 1st gen iphone and now it's the same.

    I'm running itunes 8.2.1 on an iMac running Leopard.
  • Guglielmo Altavilla Level 1 Level 1 (0 points)
    Same, identically thing also for me
  • Guglielmo Altavilla Level 1 Level 1 (0 points)
    Solved! In my case the issue was circumscribed on syncing with iPhoto's album. This worked for me:
  • steve.levinson Level 1 Level 1 (0 points)
    I found a helpful post on this at MacRoumors, so I can't take full credit for this myself, although the explanation was incomplete. The problem I believe occurs when the AlbumData.xml file is incomplete, but this may be an issue when any xml data is missing. To find this file, open the iPhoto Library by right-clicking on it and choose "Show Package Contents". The file can be viewed in TextEdit. When I did so, however, at the top, it indicated there was an error, and the file was truncated! That was the problem!

    Figuring out how to fix the problem, however, is something that will be specific to the individual iPhoto Library. The first step, regardless, is to scroll to the bottom of the file, which will reveal the name of the album that is to blame. In my case, it was a slide show I did some years ago for my mother that I made into a DVD for her. What apparently happened is that the iPhoto couldn't find the music selection I'd used for one of the tracks, so there was an undefined element - I had made a change to my iTunes Library, substituting a newer recording for an older one.

    You'd think that iPhoto could recover from this, or that iTunes could at least let the user know more about what is preventing photos from being synced. My guess is that the team that designed photo sync in iTunes assumed the xml data would always be complete, and the iPhoto team never realized their xml data would be used for iPhone or iPod synchronization.
  • mdhurst Level 1 Level 1 (10 points)
    same thing is happening with my iPhone 3GS and also with my iPod Classic 80Gig. Running iTunes 8.2.1 and latest iPhone and iPod Software. System 10.5.8
  • Mike Osborn Level 4 Level 4 (1,205 points)

    The link's not working....
  • Mike Osborn Level 4 Level 4 (1,205 points)
    Seeing the exact same thing here. Problem occurred with both my iPhone 3Gs and iPod 80GB Classic.

    Wish I'd seen this thread before calling AppleCare last night, as they don't have anything in their database with this error on Mac-based systems. The error (-50) in their troubleshooting database refers only to Windows systems.

    I spent three hours with tech support last night, and am not quite done getting rid of the problem. During my AppleCare session, we tried uninstalling/reinstalling iTunes, trashing iTunes preference files...they didn't fix the problem. My tech, about 2 hours into this, did hear from a co-worker at the call center that Apple engineering is aware of this problem, and that not syncing my photos will fix the problem. So...we did that...

    During the reinstallation of iTunes, we managed to duplicate most of the songs in my iTunes library, which resulted in an error message that there's not enough room on my iPhone.

    I'd started going thru the iTunes Music folder and deleting all of the duplicate files last night...didn't come close to finishing, though. My AppleCare product specialist tech and I couldn't think of an easy way to remove the dupes...

    Today, though, I may have had a "Eureka" moment. I realized that I SHOULD be able to use my Time Machine backup to restore my iTunes Music folder to its previous state. I'll try this when I get home from work today.

    Will advise results.
  • James Sapoznik Level 1 Level 1 (15 points)
    I disabled the "Sync Photos From:" and the sync worked fine. It looks like it is a problem with the phone syncing with iPhoto.
  • Shaun Campbell Level 1 Level 1 (5 points)
    You may think this is a drastic way to cure the problem but I've just upgraded the iMac G5 for a new 24 inch iMac (the graphics card blew). I restored all my data from time machine to the new Mac. What I noticed during the course of the upgrade was that several of the applications including iPhoto rebuilt their databases as I was going up to iLife09 from the old version. When I synchronised my iPhone after that the problem had gone away so whether the problem was to do with the hardware or the software or the data I'm not sure.

    I do think iPhoto had got a little confused because it found 4 photos which it placed in recovered folder in iPhotos, so maybe iPhotos is the cause of the problem.

    Not sure if it helps.

  • Mike Osborn Level 4 Level 4 (1,205 points)

    I'd earlier tried rebuilding my iPhoto database...well, at least as much as I could do with start up options in the applications. It didn't affect my sync problem, though.

    I didn't try, though, deleting/reinstalling iPhoto idea if this would cause a more thorough database rebuild.
  • Mike Osborn Level 4 Level 4 (1,205 points)
    AppleCare Tech Support confirmed this is an issue for a growing number of people. The cure, for now, is to stop syncing photos to either your iPod or iPhone. I'm told this has been reported to Apple's software engineers, but no timeframe on a fix.

    Wondering now if this cropped up with the latest Software Update to iPhoto 09?
  • thijsvogels Level 1 Level 1 (0 points)
    I solved the exact some problem for me by removing the latest album and a slide show from my iPhoto library. These pictures weren't important to me, but I'd recommend moving them and re-import them to iPhoto after you got the sync work.
  • James Sapoznik Level 1 Level 1 (15 points)
    I just did a full install of Snow Leopard and of course I had to re-install iTunes. After I did that I dragged my backup copy of the iTunes folder from my external drive onto my mac. I launched iTunes and did a backup of the iphone. No problems at all. I was able to sync any photo album I wanted even though I had slideshows present (some people said slideshows might be the culprit). I think that backing up your iTunes library and then re-installing iTunes might do the trick. Hope this helps.
  • phalanges Level 1 Level 1 (0 points)
    I also stopped syncing with iPhoto and the problem disappeared. This is obviously an Apple software problem and they need to get it fixed pronto!
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