Sync my iPhone with my Mac Air

In can sync photos, files, calendars, and more, by signing them both in the same iCloud account. You can learn more about that with the link below.

https://www.apple.com/icloud/

-Hope this helps!

See Recover your iTunes library from your iPod or iOS device - Apple Community if there is media on the device that isn't in your library.

See Sync your iPhone, iPad, or iPod using iTunes on your computer - Apple Support to copy what is in your library to your device.

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