Apple Has Stopped Signing iOS 9.0.2, Downgrade No Longer Possible From 9.1
Apple has finally stopped signing iOS 9.0.2 for iPhone, iPad, iPod touch, which means that you can no longer downgrade your device from iOS 9.1.
You Can No Longer Downgrade From iOS 9.1 And Jailbreak Using Pangu 9
Whenever Apple releases a new firmware update for its mobile platform, the company ceases to sign the software prior to it, which means that you will no longer will be able to downgrade your device. Appel has done the same thing with iOS 9.0.2, as the company is no longer signing the firmware, which is bad news for jialbreakers, as iOS 9.1 patches the Pangu 9 jailbreak and iOS 9.0.2 is the last version of Cupertino's mobile operating system that can be jailbroken on the fly using a publicly available tool.
There are two things you can do at this point: either you can jailbreak your device right away and reap the benefits of Pangu 9, provided that you're sitting on iOS 9 - 9.0.2, the tutorials for which are linked here:
- How To Jailbreak iOS 9 – 9.0.2 On iPhone, iPad, iPod touch Using Pangu 9
- Jailbreak iOS 9 / 9.0.2 Using Pangu For Mac OS X
Secondly, you just don't care about Pangu 9 and wish to upgrade to iOS 9.1. If that's the case, then follow our tutorial here on how to do just that:
If you're a serious jailbreaker however, then we highly recommend that you steer clear of tweaks or packages that are not compatible with iOS 9 - 9.0.2 as a botched tweak can send your device into a boot loop, forcing you to update to iOS 9.1, subsequently losing the jailbreak altogether. Furthermore, before you go ahead with the jailbreak, make sure you download the latest version of the Pangu 9 tool for both Windows and Mac before hitting that 'Start' button. Once done, do not forget to upgrade all the stock packages in Cydia as they contain numerous bug fixes and patches, bringing overall stability to the device on the firmware version it is jailbroken on.
At this current point in time, it's unclear whether or not there will ever be a jailbreak for iOS 9.1 as Apple has patched crucial vulnerabilities which the Pangu Team were making use of to make the jailbreak possible in the first place. Hence, be careful how you use your jailbroken device as you do not want any sort of troubles at this point, forcing you to restore your device using iTunes.
Were you able to downgrade and jailbreak your device on iOS 9 - 9.0.2 using Pangu 9? Be sure to share your thoughts with us in the comments section below.