Q: Itunes won't read IOS9 Devices

So basically I have an an old laptop, it runs on 10.6.8. I can't afford a new one, so that is not an option. But I recently got my iPad mini 2 as gift, It came on iOS8.4. My itunes was constantly saying that I needed to update my ipad to iOS9. So I did. What a mistake that was. Because now, my old itunes wont read any IOS9 devices. So i really want to uninstall iOS9. However, I can't use itunes to do it because itunes can't read my ipad. I restored it to factory setting, it didn't work. Still has IOS9. I don't know what to do please help.