Auto backup iPhone
I am trying to problem solve an issue with photos syncing to my phone and every time I have to test it it backs up the full 50 gig of data making this process extraordinarily long and tedious. But it seems you can disable that feature using terminal. I record it here for posterity …
If you are synchronizing to a Mac:
1. Close iTunes on your Mac.
2. Launch Terminal.
3. Type
defaults write com.apple.iTunes DeviceBackupsDisabled -bool true
and press Enter.
4. If you want to re-enable automatic backups, type
defaults write com.apple.iTunes DeviceBackupsDisabled -bool false
and press Enter.