How does mac turn off itunes Auto Backup feature?

At any time an iOS device is linked to an Apple Mac computer, the itunes software in your computer will automatically sync and back up your iOS device. While backups are very useful, we can restore Iphone/ipad data directly when there are problems with our iphone/ipad. But some friends want to turn off itunes backup, so how do we do it? The following small series to bring you the relevant tutorials:

Cancel itunes backup of your iOS device

1. Quit itunes completely, run terminal (application-and utility), and enter the following command:

Defaults write Com.apple.iTunes Devicebackupsdisabled-bool YES

2. Open itunes and connect to your iOS device, and you'll find itunes will only sync your device, but it won't back up

Re-enable itunes backup for iOS devices

1. Quit itunes completely, run terminal (application-and utility), and enter the following command:

Defaults Delete Com.apple.iTunes devicebackupsdisabled

2. Open itunes and connect to the iOS device and you will find the itunes backup feature restored.