mgroovin
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Q: AppleMobileDeviceService.exe floors CPU and won't sync iPhone 4 with iTunes 10.4 and XP

I just updated iTunes to 10.4.1.10.  After the upgrade, the AppleMobileDeviceService.exe runs one of the two cores at 100%, resulting in 50% CPU utilization.

 

When I connect my iPhone 4 (4.3.5) the sync starts but hangs on the first backup step.  At that point, both the AppleMobileDeviceService.exe and iTunes are flooring the CPU's...  now at 100%.

 

I've reintalled iTunes without luck.  I've also re-booted the phone, which has solved sync issues in the past, with no luck.

 

I can see others having issues like this, but I haven't seen a resolution yet.

 

 

Thanks!

iPhone 4, Windows XP Pro

Posted on Aug 24, 2011 12:36 PM

by bigdig2001,Solvedanswer
bigdig2001 bigdig2001
Level 1 (10 points)
A:

Hi folks,

 

had exactly the same problem. Could fix it by following "exactly" the uninstall at Apple Support. http://support.apple.com/kb/ht1925

 

Even the remove of uninstalled files and restart was important.

 

Then I downloaded the latest iTunes from Apple http://www.apple.com/itunes/download/ and completed the new installation.

 

Hope that helps you all to fix it.

Posted on Aug 29, 2011 3:48 AM

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Q: AppleMobileDeviceService.exe floors CPU and won't sync iPhone 4 with iTunes 10.4 and XP

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  • by frank56may,

    frank56may frank56may Aug 24, 2011 11:32 PM in response to mgroovin
    Level 1 (0 points)
    Aug 24, 2011 11:32 PM in response to mgroovin

    I have the same problem after update iTunes at 10.4.1.10  just if connetted one of my iphone on the PC  ApplemobiledeviceService will use 50% of CPU    that make hot my PC and slovly ....

    What i can do?  i must removed AppleMobileDeviceService?

    Frank2

  • by gchin,

    gchin gchin Aug 25, 2011 9:54 PM in response to frank56may
    Level 1 (20 points)
    Aug 25, 2011 9:54 PM in response to frank56may

    Also see 50% usage of 2 cpu's by applemobiledeviceservice.exe in latest itunes download.

     

    Two weeks ago, I did successfully backup & sync my ipod touch using itunes. Cannot backup & sync using itunes 10.4.1

     

    Now, laptop battery is being used up faster and faster, very bad for mobile users.

  • by marianafrompalmwoods,

    marianafrompalmwoods marianafrompalmwoods Aug 25, 2011 10:17 PM in response to mgroovin
    Level 1 (0 points)
    Aug 25, 2011 10:17 PM in response to mgroovin

    Same problem here. Absolutely frustrating!! No Apple application (Safari, MobileMe, Quicktime) will work since I've updated my iTunes. Also when I go to iTunes Shop, it won't open, doesn't recognise the internet on my computer. Any answers?

  • by Manny2KSi,

    Manny2KSi Manny2KSi Aug 26, 2011 8:21 AM in response to marianafrompalmwoods
    Level 1 (0 points)
    Aug 26, 2011 8:21 AM in response to marianafrompalmwoods

    Same EXACT problem here.... i had to restore my phone and i had to blow out my backups and NOTHING worked. im now basically using a brand new bone dry iphone 3gs.... lost 100's of text's and everything.

     

    Itunes store dead... everything just messed up.

    49% cpu on itunes and 49% cpu on AppleMobileDeviceServices.

     

    HELP!!!!

  • by mgroovin,Helpful

    mgroovin mgroovin Aug 26, 2011 8:59 AM in response to mgroovin
    Level 1 (0 points)
    Aug 26, 2011 8:59 AM in response to mgroovin

    I haven't found a fix as of yet, but for those of you wanting to save your battery or keep you laptop more cool, you should stop and disable the "Apple Mobile Device" Service.  Once this service is off, you should restart iTunes and your CPU should be normal.

     

    However, you iPhone / iPod will never sync as long as this service is off.  So, this is only to deal with the CPU/Battery issue until there is a real fix.  So, you'll have to enable the service once Apple or somebody else provides a real solution.

     

    To disable the service:

    Start Menu --> Control Panel --> Administrative Tools --> Services

         -Then, double click on "Apple Mobile Device" and click "Stop."

         -Then change the drop down to "Manual" or "Disabled" and click OK.

     

    To reverse, just set the dropdown to "Automatic" and click "Start."

  • by bigdig2001,Solvedanswer

    bigdig2001 bigdig2001 Aug 29, 2011 3:48 AM in response to mgroovin
    Level 1 (10 points)
    Aug 29, 2011 3:48 AM in response to mgroovin

    Hi folks,

     

    had exactly the same problem. Could fix it by following "exactly" the uninstall at Apple Support. http://support.apple.com/kb/ht1925

     

    Even the remove of uninstalled files and restart was important.

     

    Then I downloaded the latest iTunes from Apple http://www.apple.com/itunes/download/ and completed the new installation.

     

    Hope that helps you all to fix it.

  • by mgroovin,Helpful

    mgroovin mgroovin Aug 29, 2011 8:36 PM in response to mgroovin
    Level 1 (0 points)
    Aug 29, 2011 8:36 PM in response to mgroovin

    I called Apple Support today and they instructed me to follow the same article.  Follow it closely (use the detailed steps).  It did work for me.

     

    I did have a lot of trouble unistalling the bonjour service.  It did unistall without error, but the service and the directory and app and DLL where still left.  I could not delete the DLL, even after the restart.  I manually removed the service and rebooted again, still no luck.  I even ran a windows systool to look for open file handles to the DLL and found none...  So, I can't explain why I couldn't delete it.

     

    Other than that, the instructions went smooth.  I simply ignored the bonjour issue, reinstalled, and my problems were solved.

     

    Before unistalling, I would export my library (just in case).  Do this from File --> Library --> Export.  This may help you preserve you playlists if something goes south.

     

    Also, I would backup all of my library in the MyDocument --> MyMusic --> iTunes Folder.

     

    I didn't need either of the above, iTunes was able to read all of the original files and preferences when reinstalled.  But it's better safe than sorry.

  • by peter.edmonton,

    peter.edmonton peter.edmonton Sep 3, 2011 7:11 AM in response to mgroovin
    Level 1 (0 points)
    Sep 3, 2011 7:11 AM in response to mgroovin

    Exactly same problem since late July. AppleMobileDeviceService.exe runs at 50% on a dual core even before starting iTunes or connecting iPod. iPod sync hangs iTunes at start of first sync step to backup iPod.

     

    Followed full uninstall instructions exactly. Note: manual removal of folders should be followed as most of them had not been removed in the Add/remove Programs remove step.

     

    Appears to have completely resolved problems. Please note much frustration and loss of credibility for Apple.

  • by gchin,

    gchin gchin Sep 5, 2011 5:00 PM in response to mgroovin
    Level 1 (20 points)
    Sep 5, 2011 5:00 PM in response to mgroovin

    Also see a simpler solution that solved the AppleMobileDeviceService.exe high cpu problem for me at:

     

    iTunes for windows - App Store's blank page - final solution

     

    https://discussions.apple.com/message/15993286#15993286

     

    Gary

  • by donfromhinton,

    donfromhinton donfromhinton Sep 5, 2011 8:05 PM in response to mgroovin
    Level 1 (0 points)
    Sep 5, 2011 8:05 PM in response to mgroovin

    Right on - thanks!

  • by codalex,

    codalex codalex Sep 15, 2011 1:44 PM in response to bigdig2001
    Level 1 (0 points)
    Sep 15, 2011 1:44 PM in response to bigdig2001

    hi. thanks to you i solved for us that great problem. thanks!

  • by Mike S HT,

    Mike S HT Mike S HT Sep 20, 2011 5:41 AM in response to mgroovin
    Level 1 (9 points)
    Sep 20, 2011 5:41 AM in response to mgroovin

    Thanks to bigdig2001 -- the order of the uninstalls does appear to be crucial!  I used a different order the first time I tried to fix the CPU hogging. 

     

    gchin, thanks for your solution.  I didn't try it b/c the idea of running the latest and greatest iTunes software w/ an old version of the aplication library scared me.  Could be security vulnerabilities, new problems due to an unsupoorted combination of software versions, etc.  Glad it worked for you!

  • by davidfromdunwoody,

    davidfromdunwoody davidfromdunwoody Sep 26, 2011 9:54 AM in response to mgroovin
    Level 1 (0 points)
    Sep 26, 2011 9:54 AM in response to mgroovin

    The link for the "fix" says its for XP - does this also apply for Windows 7?

     

    This is frustrating... getting tired of constantly fighting the "Apple software suite" to use my devices and keep my machine running normally.

  • by Mike S HT,

    Mike S HT Mike S HT Sep 26, 2011 10:18 AM in response to davidfromdunwoody
    Level 1 (9 points)
    Sep 26, 2011 10:18 AM in response to davidfromdunwoody

    "The link for the "fix" says its for XP - does this also apply for Windows 7?"

     

    The fix includes a link to the Win7 instructions.

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