I can't sync my iPhone to iTunes properly?

What i mean is sometimes when i connect the cable it syncs but sometimes no.
this has been happening since I've downloaded maverick and brand new iPhoto to my mac
I'm talking about photos sometimes they're synced sometimes not.

I need more specifics. Are you getting an error message? Is it randomly stopping? Are both versions of itunes fully up to date? Your Mac should be on 11.1.3. Your phone should be on ios 7. Ensure they're both signed in using the same apple id as well, and that the mac is authorized.

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