12 Replies Latest reply: Mar 9, 2013 4:35 AM by mcfizza
Michael Schulz Level 1 Level 1 (55 points)
Syncing my iPhone with my iMac works o.k. but the backup which used to happen until yesterday before the syncing doesn't work anymore. I am getting an error message telling me it can't backup because there is an error. Doesn't tell me what.

Any ideas ?

Is there a possibility to reset the backup and start new ?

Help is appreciated.

iMac Intel, Mac OS X (10.6.5)
  • wjosten Level 10 Level 10 (93,760 points)
    See if you can manually create a backup, but first delete any and all existing backups: iTunes>Preferences>Devices. On that same preference pane, disable auto-sync. Connect your phone, right-click in the left device pane & select "Backup". If it completes successfully, you should be good to go.
  • Michael Schulz Level 1 Level 1 (55 points)
    Thanks but didn't help.
    The manual back gives the very same error message.
    Then I tried the following:
    Switched the phone off and on again,
    connected phone to iMac
    selected the manual backup >> again same error message
  • wjosten Level 10 Level 10 (93,760 points)
    What exactly is the error message, word-for-word?
  • Michael Schulz Level 1 Level 1 (55 points)
    The message reads: " iTunes could not back up the iPhone "iPhone" because an error occurred".

    Syncing as mentioned before works ok
  • mobiper Level 1 Level 1 (0 points)
    Most of the people are tech savvy these days and few of them are quite crazy for gadgets. For tech lovers iPhone is the latest gadget that comes out from the Apple factory. The iPhone is equipped with all the functionality that you can think of and won't find in other phones. The feature that I liked the most is the GPS (global positioning system).

  • Luca883 Level 1 Level 1 (0 points)
    Hi, I have the same problem with my iPhone 3G..did you find a way out?
  • Lawrence Finch Level 7 Level 7 (32,290 points)
    Delete your current backup (iTunes/Preferences/Devices). Restart your computer. Try again to back up. Make sure you are connected to a USB port directly on the computer, not to a hub.
  • dkardell Level 1 Level 1 (0 points)
    Guys I think this is might be an issue with expired me.com or mac.com accounts. I am a developer and my iPhone4 has been working and syncing just fine. My me.com (mac.com) account expired in January and was turned off. Ever since my backups fail. I've come to this conclusion only after reading all of the forums and deleting all of my backups (which now I will have to start over with over 300 apps), ensuring directory permissions were correct.

    Apple needs to investigate this as an end user can not determine this when all we get is a return code of 30 and a MobileDomain error of 104.
  • shuifu Level 1 Level 1 (0 points)

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  • Bobufarr Level 1 Level 1 (10 points)

    I had the same error and just fixed it.


    I'd moved the backup files to an external drive then deleted them from the library, but even without old backups, the process failed.


    I tried many of the above suggestions, but eventually I tried unchecking the "Encrypt iPhone Backup" My previous backups were encrypted with a password, so when I unchecked the box, I was prompted for that password, which let me remove the encryption.


    I then rechecked the box, entered in a "new" password, but I used the same one as before. The back up ran and showed progress in a pop-up window. A few minutes later, it was done.


    I've since tested it through the normal process and everything is working again.


    Hope this helps.

  • KColeman88 Level 1 Level 1 (0 points)

    I have this problem with the error message and it still doesn't work. I've deleted all my previous backups, I tried encryting the backup everything it still says  "iTunes could not back up the iPhone "iPhone" because an error occurred."  Does anyone have any idea how to fix this???

  • mcfizza Level 1 Level 1 (0 points)

    Has anyone found a solution to this on any other discussion boards or forums.. im stuck too.  And i have deleted my previous backups so i need an answer that doesnt involve starting from scratch AGAIN!!