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Just got a new iPAD air 2, iOS 9.1. It says I should update it to iOS 9.3.1. I might be interested to jailbreak it later on, so I'd like to preserve that option for me possible.
I hear jailbreak for 9.3.1 is not available yet, and on the other hand, apple stopped signing iOS 9.1 and it is impossible to install or downgrade to iOS 9.1. I want to know how I can back up the current state with iOS 9.1, and later after I updated the iOS, when ever I wanted I could restore to the iOS 9.1.
I know that I should backup shsh blobs using Tiny Umbrella. but I cannot find the official download file in their website. Also I don't know how to backup APTicket.