Hi All New to this forum, and to the iPhone, I'm coming from android so please don't shoot me down in flames! Quick Story I got a new iPhone 4 last week, updated it to 4.3 last Thursday. Now I am looking at all the hacks available. Seems not much for 4.3 ATM. Anyways, I used Tiny Umbrella to back up my SHSHs and it backed up the following... 4.2.1 (8C148) 4.3 (8F190) 4.3b1 (8F5148b) 4.3b2 (8F5153d) 4.3b3 (8F5166b) How the hell has it backed up all of the above? I was expecting it to only list 4.3. And, does this mean it possible for me to go-back to 4.2.1 and jailbreak with greenpois0n ?