For the past few hours, Apple no longer signs iOS 9.0.2. This means that it is no longer possible to restore its iPhone, iPad or his iPod Touch under this version of Apple’s mobile operating system using iTunes. It is also not authorized to update your iDevice from iOS 9.x to iOS 9.0.2.
In addition, the fact that Apple leaves aside iOS 9.0.2 blocks the jailbreak until further notice. As a reminder, the PanGu software on Mac and PC allows the jailbreak of iOS 9, iOS 9.0.1 and iOS 9.0.2, but does not yet support iOS 9.1 recently released (read: iOS 9.1: final version available on iPhone , iPad & iPod Touch).
Apple having plugged the flaws used by PanGu for the iOS 9 jailbreak when leaving iOS 9.1 (iOS 9.1 blocks the iOS 9 jailbreak from PanGu), so you will have to reach an update of the tool (or the release of a software by another team of hackers) to unpack your Apple smartphone or tablet on iOS 9.1.