HT203271: If your iTunes backup couldn't be completed or you can't restore from a backup

Learn about If your iTunes backup couldn't be completed or you can't restore from a backup
VincentLasselin
Level 1 (0 points)

Q: iPad backup is failling

Hi everybody,

 

I've a big issue trying to backup my iPad (mini first generation) since May 2015.

Since May, I've upgrade my iPad from iOS 8.X to iOS 9.0.2, Mac OS X from Yosemite 10.10.X to El Capitan 10.11. iTunes was also upgraded.

 

I've tried to restore my iPad with my last backup (May 2015).

I've tried to delete some iTunes cache files.

I've tried to delete all my iPad apps.

I've tried another USB port on my iMac.

 

Nothing is working.

 

I've no issue syncing my iPad with iTunes. It's only the backup that is not working.

 

The error message is that my iPad was disconnected ...

 

I've seen this in /var/log/system.log

 

Mac:log vincent$ grep AppleMobileBackup system.log

Oct  2 07:52:49 Mac AppleMobileBackup[2672]: WARNING: Backing up 4b9a96746dac46f7b5156cbe4ef0f52cea5f51a9

Oct  2 07:57:46 Mac AppleMobileBackup[2672]: 2672:2752512|SocketStreamHandler.c:_SocketLogCallback| ERROR: SocketRecv (data): return of 0 bytes

Oct  2 07:57:46 Mac AppleMobileBackup[2672]: 2672:2752512|StreamHandler.c:_ReadFunc| ERROR: Error reading data: Can't read data

Oct  2 07:57:46 Mac AppleMobileBackup[2672]: 2672:2752512|DeviceLinkConnection.c:_DLHandlerThreadReadMessage| ERROR: Could not receive message: '(null)'

Oct  2 07:57:46 Mac AppleMobileBackup[2672]: 2672:1994399744|DeviceLinkConnection.c:_DLMainThreadMessagePortCallback| ERROR: Error creating components from read data: 'NULL data returned from read'

Oct  2 07:57:46 Mac AppleMobileBackup[2672]: ERROR: Connection to device lost (MBErrorDomain/200)

Oct  2 07:57:46 Mac AppleMobileBackup[2672]: ERROR: Backup error: -10

Oct  2 07:57:46 Mac AppleMobileBackup[2672]: 2672:2752512|SocketStreamHandler.c:_SocketLogCallback| ERROR: SocketSend (data): error 32: Broken pipe

Oct  2 07:57:46 Mac AppleMobileBackup[2672]: 2672:2752512|StreamHandler.c:_WriteFunc| ERROR: Error sending data: Can't send data

Oct  2 07:57:46 Mac AppleMobileBackup[2672]: 2672:2752512|DeviceLinkConnection.c:_DLHandlerThreadMessagePortCallback| ERROR: Could not send disconnect message: 'Error writing length of data'

Oct  2 08:24:14 Mac AppleMobileBackup[2768]: WARNING: Backing up 4b9a96746dac46f7b5156cbe4ef0f52cea5f51a9

iMac (27-inch Late 2009), OS X El Capitan (10.11)

Posted on Oct 1, 2015 11:53 PM

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VincentLasselin

Q: iPad backup is failling

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  • by Linc Davis,

    Linc Davis Linc Davis Oct 2, 2015 2:34 PM in response to VincentLasselin
    Level 10 (207,926 points)
    Applications
    Oct 2, 2015 2:34 PM in response to VincentLasselin

    1. If you have no backups of the device at all, there is a risk of losing data, and you should not try to solve the problem yourself. Contact Apple Support or make a "Genius" appointment at an Apple Store. The latter is a free service.

    2. Back up your iOS device to iCloud, if possible.

    3. Take the applicable steps in this support article that you haven't already tried.

    4. According to a report, Apple Support has given the following instructions to at least one user with a similar problem. I have not tested this procedure and I don't know whether it will work for you.

    a. Disable iCloud backup, if it's enabled:

              Settings ▹ iCloud ▹ Backup ▹ iCloud Backup: off

    b. Reset all settings on the device:

              Settings ▹ General ▹ Reset ▹ Reset All Settings

    c. Press and hold both the Sleep/Wake and Home buttons for at least 10 seconds, until you see the Apple logo.

    d. When the device restarts, re-enable iCloud backup, if you disabled it.

    Try again to back up with iTunes. If you still can't, go to Step 1.

  • by VincentLasselin,

    VincentLasselin VincentLasselin Nov 21, 2015 2:23 AM in response to Linc Davis
    Level 1 (0 points)
    Nov 21, 2015 2:23 AM in response to Linc Davis

    Hi !

     

    I try some things on your procedure and now it's ok.

    I can backup my iPad again.

    I thing the "reset all settings" thing correct all.

     

    Thanks you !

  • by bausi,

    bausi bausi Jan 22, 2016 5:28 AM in response to VincentLasselin
    Level 1 (10 points)
    Jan 22, 2016 5:28 AM in response to VincentLasselin

    The latest update for iOs 9.3.1 also repaired it, although I guess every other Update would repair this as well…