Hi, welcome to justanswer.com! My name is Mike.I am going over your question and I will be with you shortly.
You must upgrade your System to at least Mavericks 10.9 to make it work if you upgrade your phone to iOS 10.
Go here and click on Upgrade now to see if you can do that: http://www.apple.com/macos/sierra/
Do you still need help with that? You never replied....