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Can't sync iPhone with iTunes 9.1 after update (Windows 7)

68507 Views 137 Replies Latest reply: Oct 8, 2010 1:22 PM by Jody Dillow RSS
  • Remy_Geneva Calculating status...

    Apple still recommend users to downgrade because they don't want the users to tweak the system.

    However as there is known easy solutions to make 9.1 working fine you should rather install 9.1 so ne need to deal with backwards Itunes objects.

    It's really more easy this way, trust me.
    Acer Extensa 5620Z
  • OngK Calculating status...
    Will your approach cause other problems. For example, other application may also want to use the file in Windows.
    Acer Aspire 3935, Windows 7
  • Remy_Geneva Level 1 Level 1 (0 points)

    You might have noticed that there is different ways to resolve the problem, like i.e. ? All are described in this thread, summary;

    1) add Apple locations in Windows PATH (2 entries)
    2) rename dll in Windows dir
    3) copy dll to align versions

    First try option 1 to force Apple to use the right DLL. Simple and 100% safe, please refer to the previous posts. Obviously might not work for you if you don't input it correctly, add only one path instead the two required, etc.. or don't reboot the PC.

    => try next options if doesn't work for you. Option 2) and 3) are obviously tweaking a little the system but if users are saying it worked fine for them..?
    Acer Extensa 5620Z
  • JAta2 Level 1 Level 1 (0 points)
    Simple and 100% safe, please refer to the previous posts.

    Simple yes, 100% safe, no. Changing the path affects the search behavior of much more than itunes, it changes how each application searches to find a dll. It might work, but I suspect that most folks who claim it works haven't tested all the other applications to make sure that no problems were introduced.
    Windows XP, iPhone OS 3.1.3, Not Jailbroken
  • Remy_Geneva Level 1 Level 1 (0 points)
    Good point, let me provide some infos:
    Libxml2.dll might be used using or installing certain programs when Windows starts or shuts down or maybe even during a Windows installation.
    There is no potential issue until above occur and little probability that the PC won't boot anymore in case of problem. Also you know obviously how to fix/unwind if needed by above.

    I originally recommended to rename ibxml2.dll because there is more visibility in case of misusage. Following sample of messages should appear if dll missing as renamed in Windows dir:
    * This application failed to start because libxml2.dll was not found. Re-installing the application may fix this problem."
    * "Cannot find [PATH]\libxml2.dll"
    * "The file libxml2.dll is missing."
    * "Cannot start [APPLICATION]. A required component is missing: libxml2.dll. Please install [APPLICATION] again."

    If someone has any better solution please advise
    Acer Extensa 5620Z
  • SiiMan Calculating status...
    I recently upgraded iTunes from to 9.1. After the upgrade, I could no longer sync my Outlook 2007 Contacts, Notes, or Calendar (I do not sync mail). My PC runs Windows XP Pro on a Dell Laptop. After hours of reseach and two hours on the phone with AppleCare customer rep., the only fix that worked was to downgrade back to iTunes build 9.0.3. After that, all worked fine as they did before the upgrade. Obviously Apple did not research the upgrade thouroughly before release. Here is what you should do:

    1. Uninstall iTunes 9.1 and related components in this order:
    Windows XP:
    Windows 7:
    Make sure you follow the order of uninstall as described.

    2. iTunes Library files created with 9.1 can not be read by 9.0 version. All iTunes Library files have be deleted from your computer before you install 9.0.3 version.

    3. Download and install the older iTunes v9.0.3 from When prompted, do not accept automatic update option at the onset of the install process; otherwise the software will look for and install the latest version.

    Hope this works for you. Pleas share your experience.

    Hope Apple will take note and fix the error in the latest release.
    Dell D630, iPhone OS 3.1.3, Windows XP Pro
  • V Ann Oyed Calculating status...
    Join the club! I have the same problem,no recharge, no synch, no iphone! its been a week now, tried all the fixes, just completed yet another uninstall as recommended by an Apple Genius at the store who said he couldn't understand problem. My phone was on red battery, wouldn't charge, went to an Apple Genius last Friday who put it into DFU tested synch with their computer it worked, was happy but still couldn't synch with my pc so could not get my info back onto it, was just like a new phone. Since then battery unable to recharge again and still cannot synch with pc, itunes not recognising it but pc does, but cannot get into itunes store, wont't open. Tried, restart and DFU process at home, not working at all. I have had to resort to putting sim card in an old eriksson just to be able to receive calls but lost contacts. Written to Apple and O2 for help and waiting for response. Do you think it is that I need a new battery or is it a bug? My phone is 3g, not jailbroken, and have had it for almost two years, worked fine until the OS update when it did the same things, resolved by going into DFU, then did it did synch ok without all the uninstalling stuff, was fine again until now then all this started after recent 9.1 update, this is worse and no fix from anyone working. Can't turn it off or on as battery won't charge no matter where its plugged in. When home and On button held as prescribed it just shows red battery, then you see a quick white flash and then black screen, and repeats this sequence continually until you stop holding the buttons. Wasted days working on it, cannot believe that this has happened and Apple not helping at all. Can anyone help before I throw it out the window and give up??
    HP Pavillion Desktop, Windows XP Pro
  • stevieG48 Calculating status...
    I have Outlook 2003 and have the same problem. iTunes sync will not update my calendar entries to my iPhone.

    HOWEVER for me I used the diagnostics. --- and that actually updates my iPhone calendar.

    iTunes -- Help --Run Diagnostics --I uncheck all except iPhone/iPod touch sync tests. When this completes all my calendar updates are on the iPhone. Also it works in both directions..

    A work around for me until Apple fixes the actual proble.

    ThinkPad, Windows XP Pro, iPhone 3Gs
  • JAta2 Level 1 Level 1 (0 points)
    After you plug it into the charger, how long do you wait until you conclude that it isn't charging?
    Windows XP, iPhone OS 3.1.3, Not Jailbroken
  • kkuan_45 Calculating status...
    After few days of troubleshooting and numbers of uninstall and reinstall followed all recommended procedures, still cannot find the solution. And thanks to the discussion forum. I try the stupid way to resolve this problem.
    1) Connect your iPhone to your PC
    2) Click start button
    3) In the search box type"device manager"
    4) Look for "Network Adapters"
    5) You should see "Apple Mobile Device Ethernet" (only when your iPhone is connected to your PC)
    6) Update this device (It happen to install the device software)
    7) And the iPhone can sync with the PC immediately with contacts, musics, videos etc.,
    8) Remember, you must restart the computer to make sure the program runs sorrectly.
    Fujitsu Lifebook S6420, Windows 7, Office 2007
  • Remy_Geneva Level 1 Level 1 (0 points)
    Until someone does a recap of all potential sources of sync problems and related wrkaround, any newcomer here *should explore carefully this thread* to find the apropriate way to resolve.

    Apple will certainly look for fixing that as it's a critical issue.
    Acer Extensa 5620Z
  • maddmomm Calculating status...
    This seems to be the solution! My computer is syncing right now without a single complaint! THANX!!!!!!
    dell xps, Windows Vista
  • s0nathan Level 1 Level 1 (0 points)
    Has apple given any indication that they intend to solve this problem? Add me the number of people with this same issue
    vista, iPhone OS 3.1
  • teddybaer Calculating status...
    Hi, after reading several blogs, I found yours. It was indeed very helpful for me... :-)) My iPhone 3GS runs now with as well as before the update. Even the sync works great!
    Medion E-Laptop, Windows XP Pro
  • JattilaB Calculating status...
    Currently Being Moderated
    Apr 14, 2010 5:38 AM (in response to olafoio)
    outside of installing/reinstalling here is a simple trick that worked for me...

    Open iTunes.
    Connect your iPod and wait for it to show up in the iTunes Source pane.
    In the Source pane under Devices select your iPod. This displays the iPods Preferences in the main window of iTunes.
    Click the Summary tab.
    Select the "Open Itunes when this iPod..." checkbox.
    Click Apply.

    exit Itunes
    and go back in ....

    good luck
    DELL, Windows XP Pro
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