Unable to unlock iPhone 4S that is disabled.
I'm currently using iPhone 7 which is working fine. I also have iPhone 4S associated with the same apple ID on which I'm getting "iPhone is disabled, connect to iTunes". How can I unlock this iPhone 4S since I don't have the iTunes app on my MacBook pro and I'm unable to download iTunes as it says that I need the older version of OS in my MacBook and my latest version of OS will not support iTunes? Any suggestions?
iPhone 4s, iOS 9