I just bought a refurbed ipad 2 with 5.1 pre-installed. Would it still be possible to downgrade to 5.0.1 from 5.1? I was looking at a couple ways to jailbreak. But I haven't figured out a safe way to downgrade. Every guide I look at requires a downgrade using SHSH blobs and tinyumbrella. But I just bought mine with 5.1 preinstalled. I don't wanna brick it as I just got it. Anyone know a safe way to downgrade?