Hi Sorry for my bad english! My iPad 2 can't boot... the iOS is damaged after a bad instalation from an App... It's freezed at the Apple logo, and is not detected by the iTunes. The problem is that the sleep button is not working (Previously damaged...), so i can't enter in DFU mode. How can i restore it? The iPad is Jailbreaked in 5.1.1. Thx for your help!