So lets say I'm buying my friend's 4S and I don't get it until next week. If I download the 5.1.1 restore image now (which I'm doing), am I able to restore it to 5.1.1 next week or it won't work?
Edit: Ok, did some reading on the TinyUmbrella site, so that answers my questions I think. So basically if I can get my friend to run TU now, it'll save the hash? And that's tied to the hardware so that when I get the phone, I'll be able to get the hash back? Testing this out on mine...
Ah, ok, so I'd just need to have him send me the files in his /Users/<user>/.shsh folder, put them in my .shsh folder, and then I could restore?