IMPORTANT: iPhone absolutely will not work on USB 1.
If iPhone is not recognized remove Apple Mobile Device components listed below reinstall iTunes.
- /Applications/iTunes
- ~/Library/iTunes
- ~/Library/Lockdown
- ~/Library/Preferences/com.apple.iTunes.plist
- ~/Library/Preferences/com.apple.iTunesHelper.plist
- ~/Library/Preferences/com.apple.iTunes.eq.plist
- /Library/Receipts/AppleMobileDeviceSupport.pkg
- /Library/Receipts/iTunesAccess.pkg
- /Library/Receipts/iTunesX.pkg
- /System/Library/Extensions/AppleMobileDevice.kext
- /System/Library/PrivateFrameworks/DeviceLink.framework
- /System/Library/PrivateFrameworks/MobileDevice.framework
Error message: “iTunes cannot sync information with iPhone because syncing has been disabled on this computer” is likely caused by corrupt SyncServices database. Backup iCal/AB data run Terminal command
/System/Library/Frameworks/SyncServices.framework/Versions/A/Resources/resetsync.pl full
to reset sync then remove ~/Library/Application Support/SyncServices. Reboot and sync as usual.