Hi I have this iPad 2 (WiFi) running on iOS 5.1.1. I downloaded an ipsw file of 5.1.1 to use it as a shift-restore file. Problem is iTunes is saying that the firmware is not compatible. I was wondering if I should download the iOS 6.1.3 then use it as a shift-restore file.. I really want to restore my iPad. What should I do? Any help will be gladly appreciated. Thanks guys.