Saturday, October 27, 2012

iTunes could not connect to this iPhone. Could not allocate a resource.

Resetting the Lockdown folder can resolve issues with starting the backup session or saving the backup. If you can back up in a new user, do not reset the Lockdown folder. Issues with the Lockdown folder occur across all users; they are not user-specific. Follow these steps to reset the Lockdown folder:

Mac OS X

  1. Disconnect all iOS devices from your computer and quit iTunes.
  2. From the Finder, choose Go > Go to folder.
  3. Type the following and then press Return:
    /var/db/lockdown
  4. Choose View > as Icons.
  5. The Finder window should display one or more files with long alphanumeric file names.
  6. In the Finder, choose Edit > Select all. Then, choose File > Move to Trash. Enter an administrator password if prompted.
    Note: Do not delete the Lockdown folder itself. Delete only the files contained inside the Lockdown folder.
  7. Reconnect your iOS device and open iTunes.